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Assembly Source File | 1994-07-13 | 150.5 KB | 6,498 lines

VERSION EQU 700 ;MODM700 as of 11/04/84 -- CP/M MODEM PROGRAM ; ; This modem program uses the Christensen protocol. It has both 'CRC' ; and CHECKSUM capability for error detection. It supports dialing ; and auto-redialing for the Anchor Automation Signalman Mark XII, ; US Robotics modems, the Hayes Smartmodem 300 and 1200 and PMMI ; S-100 modems. It supports up to two alternate dialing systems ; such as 'MCI', 'SPRINT', etc. ; ; Other external modems may be used, although manual dialing may be ; necessary. Many overlays are available to allow easy configuration ; on various computers using I/O devices including the 2661, 8250, 8251, ; Z80-SIO, and many others. ; ; NOTE: Current version is 73 sectors long. Use this figure when using ; DDT, etc. to merge the appropriate overlay, regardless of what ; the overlay may call for (such as 66 sectors for overlays made ; when the program was not as lengthy.) ; ;*********************************************************************** ; ; THIS PROGRAM IS IN THE PUBLIC DOMAIN. ; ;*********************************************************************** ; ; When transferring files modem-to-modem, the batch mode is extremely ; useful. It allows automatic transmission of multiple files. It can ; be used for single files or with wildcards. With normal single program ; transfer, the receiving end switches from CRC to checksum in one minute ; and times out completely in 120 seconds. (In batch mode it times out ; in 3 minutes for receive.) This allows ample opportunity to transfer ; programs between individuals. ; ; M7NM-6.ASM can be used to change the telephone overlay numbers ; and/or set the alternate dialing system code (also used to ; change HEXSHO and SAVSIZ, mentioned below.) ; ; M7LIB.COM can be used to easily change any of the telephone ; overlay numbers. ; ; M7FNK.COM can be used to easily change any of the 10 function ; key assignments (or the function key intercept character ; itself, which is currently the '^' character. ; ; Significant address changes now used: ; ; 0DFEH - HEXSHO 00 = do not show hex record count ; FF = show both hex and decimal count ; 0DFFH - SAVSIZ 20 = 4k file transfer buffer size ; 40 = 8k file transfer buffer size ; 80 = 16k file transfer buffer size ; 0E00H - NUMLIB (start of telephone number library) ; ;*********************************************************************** ; ; Many people have contributed ideas for this modem program: ; ; Ward Christensen, Jim Mills, Mark Zeigler, Keith Petersen, ; Paul Kelly, Bruce Ratoff, John Mahr, Rich Berg, Bob Clyne, ; Bill Earnest, Paul Hansknecht, Ron Fowler, Fred Viles, Bob ; Plouffe, Ben Bronson, Sigi Kluger, Irv Hoff, Frank Gaude' ; and others. ; ;*********************************************************************** ; PORT EQU 0C0H ;your base port (data or status) ; MDCTL1 EQU PORT ;modem control port MDDATP EQU PORT+1 ;modem data port MDRCVB EQU 02H ;modem receive bit (DAV) MDRCVR EQU 02H ;modem receive ready MDSNDB EQU 01H ;modem send bit MDSNDR EQU 01H ;modem send ready bit ; ;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ; special equates for PMMI ; MDCTL2 EQU PORT+3 ;modem status port ; BAUDRP EQU PORT+2 ;modem baud rate port BRKMASK EQU 0FBH ;mask to set break EVPAMSK EQU 20H ;mask to set even parity NOPAMSK EQU 10H ;mask to reset to no parity ODPAMSK EQU 0CFH ;mask to set odd parity ; ANSWMOD EQU 1EH ;answer mode ORIGMOD EQU 1DH ;originate mode WAITCTS EQU 150 ;number of seconds (x5) to wait for the ;computer to answer after PMMI auto-dial ;100=20 sec, 150=30 sec, 255=51 seconds ;any number 0-255 acceptable ; ; (end of special PMMI equates) ;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ; YES EQU 0FFH NO EQU 0 ; BUFSIZ EQU 16 ;buffer size in Kbytes for ASCII capture to disk ;(16k is one file extent) XFRSIZ EQU 4 ;file transfer buffer in Kbytes. Do not make ;any larger than BUFSIZ. 16k works fine on all ;but very slowest systems ; BDNMCH EQU 75H ;bad name match ERRLIM EQU 10 ;maximum allowable consecutive errors ERRCRC EQU 6 ;CRC tries, then switches to CHECKSUM LIBLEN EQU 34 ;length of each phone library entry SHOWHEX EQU YES ;yes, show both decimal and hex record counts ;no, show just decimal record count RUB EQU 7FH ;rub CRC EQU 'C' ;requests 'CRC' instead of 'CKSUM' ESC EQU '['-40H ;^[ = escape SOH EQU 'A'-40H ;^A = start of header EOT EQU 'D'-40H ;^D = end of text EXITCHR EQU 'E'-40H ;^E = exit character ACK EQU 'F'-40H ;^F = acknowledge OKNMCH EQU 'F'-40H ;^F = ok name match BELL EQU 'G'-40H ;^G = bell character BKSP EQU 'H'-40H ;^H = backspace LF EQU 'J'-40H ;^J = linefeed CR EQU 'M'-40H ;^M = carriage return XON EQU 'Q'-40H ;^Q = XON character XOFF EQU 'S'-40H ;^S = XOFF character NAK EQU 'U'-40H ;^U = not acknowledge CANCEL EQU 'X'-40H ;^X = cancel send or receive EOFCHAR EQU 'Z'-40H ;^Z = end of file ; ORG 0100H ; JMP START ;skip the data area below ; ; These routines and equates are at the beginning of the program so ; they can be patched by a monitor or overlay file without re-assembling ; the program. ; PMMIMD DB YES ;yes=PMMI modem AUTDIAL DB NO ;yes=Hayes-type autodial modem TCHPUL DB 'T' ;T=touch, P=pulse (autodial-only) CLOCK DB 40 ;clock speed in MHz x 10, 25.5 MHz max. ;2 MHz=20, 3.68 MH=37, 4 MHz=40, etc. MSPEED DB 1 ;sets display time for sending a file ;0=110 1=300 2=450 3=600 4=710 ;5=1200 6=2400 7=4800 8=9600 9=19200 BYTDLY DB 5 ;0=0 delay 1=10 ms 5=50 ms - 9=90 ms ;defaut time to send character in ter- ;minal mode file transfer for slow BBS CRDLY DB 5 ;0=0 delay 1=100 ms 5=500 ms - 9=900 ms ;default time for extra wait after CRLF ;in terminal mode file transfer NOFCOL DB 5 ;number of directory columns STUPTST DB NO ;yes=non-PMMI setup routine SCRNTST DB NO ;yes=if home cursor and clear screen ;routine at CLRSCR RETRY DB YES ;yes=reset the error limit to try again ;no=abort after 10 consecutive errors BACKUP DB NO ;yes=make .BAK file CRCDFLT DB YES ;yes=default to CRC checking ;no=default to Checksum checking TGLECRC DB YES ;yes=allow toggling of Checksum to CRC CONVRUB DB NO ;yes=convert rub to backspace TGLERUB DB YES ;yes=allow toggling of rub to backspace ADDLFD DB NO ;no=no LF after CR to send file in ;terminal mode (added by remote echo) TGLELF DB YES ;yes=allow toggling of LF after CR TRANLOG DB NO ;yes=allow transmission of logon ;write logon sequence at location LOGON SAVCCP DB YES ;yes=do not overwrite CCP LOCNXT DB NO ;yes=local cmd if EXTCHR precedes ;no=not local cmd if EXTCHR precedes TGLELOC DB YES ;yes=allow toggling of LOCNXT LSTTST DB YES ;yes=allow toggling of printer on/off ;in terminal mode. Set to no if using ;the printer port for the modem XOFFTST DB NO ;yes=allow testing of XOFF from remote ;while sending a file in terminal mode XONWAIT DB NO ;yes=wait for XON after sending CR while ;transmitting a file in terminal mode TGXOFF DB YES ;yes=allow toggling of XOFF testing IGNRCTL DB NO ;yes=do not send control characters ;above CTL-M to CRT in terminal mode ;no=send any incoming CTL-char to CRT EXTRA1 DB 0 ;for future expansion EXTRA2 DB 0 ;for future expansion BRKCHR DB '@'-40H ;^@ = Send a 300 ms. break tone NOCONCT DB 'N'-40H ;^N = Disconnect from phone line LOGCHR DB 'L'-40H ;^L = Send logon LSTCHR DB 'P'-40H ;^P = Toggle printer UNSAVCH DB 'R'-40H ;^R = Close input text buffer TRANCHR DB 'T'-40H ;^T = Transmit file to remote SAVECHR DB 'Y'-40H ;^Y = Open input text buffer EXTCHR DB '^'-40H ;^^ = Send next character ; ; Equates used only by PMMI routines grouped together here ; PULRATE DB 250 ;125=20pps dialing, 250=10pps CHGBAUD DB 'B'-40H ;^B = Used with PMMIMD in terminal ;mode to change baud rate on fly ; ; Handles in/out ports for data and status ; I$MDCTL1 IN MDCTL1 ! RET ;in modem control port DB 0,0,0,0,0,0,0 ;spares if needed for non-PMMI ; O$MDDATP OUT MDDATP ! RET ;out modem data port DB 0,0,0,0,0,0,0 ;spares if needed for non=PMMI ; I$MDDATP IN MDDATP ! RET ;in modem data port DB 0,0,0,0,0,0,0 ;spares if needed for non-PMMI ; A$MDRCVB ANI MDRCVB ! RET ;bit to test for receive ready C$MDRCVR CPI MDRCVR ! RET ;value of receive bit when ready A$MDSNDB ANI MDSNDB ! RET ;bit to test for send ready C$MDSNDR CPI MDSNDR ! RET ;value of send bit when ready ; ;====================== SPECIAL PMMI PORTS ============================= ; I$BAUDRP IN BAUDRP ! RET ;in baudrate port O$BAUDRP OUT BAUDRP ! RET ;out baudrate port O$MDCTL1 OUT MDCTL1 ! RET ;out modem control port #1 O$MDCTL2 OUT MDCTL2 ! RET ;out modem control port #2 ; LOGONPTR DW LOGON J$DIAL JMP DIAL J$DSCONT JMP DSCONT J$GOODBY JMP GOODBY J$INITMD JMP INITMD J$NWBAU JMP NWBAU J$NPARIT JMP NPARIT J$PRITY JMP PRITY J$STUPR JMP STUPR J$SPMEN JMP SPMEN J$SYSVR JMP SYSVR J$BREAK JMP SNDBRK ; ; Next six lines should not be changed by user overlay as these go to ; specific locations in the main program, not in the overlay. ; J$ILPRT JMP ILPRT J$INBUF JMP INBUF J$INLNCP JMP INLNCP J$INMDM JMP INMDM J$NXTSCR JMP NXTSCR J$TIMER JMP TIMER ; ; Clear sequences are for Televideo, Lear Siegler, etc. Change to match ; your terminal. (Heath uses ESC 4AH for clear to end of screen, ESC 45H ; to clear screen. Lear Siegler and others use ESC 79H for clear to end ; of screen and ESC 3AH to clear screen.) Room allowed for four bytes. ; (Last zero needed for stopping the string display. Any extra 0's just ; act as NOP's.) ; CLREOS CALL J$ILPRT DB ESC,79H,0,0,0 RET ; CLRSCR CALL J$ILPRT DB ESC,3AH,0,0,0 RET ; ;======================= SIGN-ON MESSAGE ============================== ; ; Send version number and date ; SYSVR LDA PMMIMD ;using the PMMI S-100 modem? ORA A JZ SYSVR1 ;go if not CALL J$ILPRT DB 'Version for PMMI S-100 modem starting at port: ',0 LDA I$MDCTL1+1 CALL HEXO ;put in PMMI control port number CALL J$ILPRT DB 'H',CR,LF,0 RET ; SYSVR1 CALL J$ILPRT ;if not using the PMMI S-100 board DB 'Version for Non-PMMI modem',CR,LF,0 RET ; ;==================== LOGON MESSAGE (IF ANY) =========================== ; ; Insert your logon message here. End with a 0 (for"CALL ILPRT"). ; PMMIusers have 59 bytes available, non-PMMI users have approximately ; 2K bytes available as they can overwrite all the following PMMI rou- ; tines if they wish. This method allows the external overlays to have ; plenty of room. It keeps the phone number library at a fixed location. ; LOGON DS 59 ;up to 59 characters allowed DB 0 ;to terminate the logon message ; ;=============== NON-PMMI INITIALIZATION (IF ANY) ====================== ; ; Insert your initialization routine here if needed. Can replace the ; following special PMMI area to set speed and auto-dial. Over 950 ; bytes are available for this purpose. (End your routine with a RET.) ; INITMD RET ; ;========== NON-PMMI SETUP (SPEED CHANGE, ETC.) IF ANY ============== ; ; Insert your speed change and/or auto-dialing routines here. Over 950 ; bytes are available (INCLUDING INITMD, above). End your routine with ; a RET. ; STUPR RET ; ; Not needed if using the PMMI board, as it has its own break routine ; SNDBRK RET ; ;**************** START OF SPECIAL PMMI ROUTINES ********************** ; ;======================================================================= ; SETS THE BAUD RATE ;======================================================================= ; STBAUD LDA ANSWFLG ;if 'O' or 'A' not requested and ORA A ; baudrate not specified, returns JZ FXBAUD ; with current mode and rate LDA ORIGFLG ;if option requested, a blank returns ORA A ; with current mode and rate RNZ ;no change if neither 'O' or 'A' shown ; FXBAUD CALL GTBAUD ;calculate PMMI baud rate divisor CALL STMSPD ;set the file time transfer value CALL O$BAUDRP ;set the PMMI board to that baudrate CPI 52 MVI A,5FH ;DTR (filter for over 300 baud) JC GT300 ;yes, greater than MVI A,7FH ;DTR (filter for 300 and less baud) ; GT300 CALL O$MDCTL2 STA MDCTLB ;save modem control byte ; OFHOOK LXI H,7500 ;throw in some delay ; OFFDLY DCR L JNZ OFFDLY DCR H JNZ OFFDLY LDA UARTCT ;UART control byte for 'A' or 'O' CALL O$MDCTL1 ;now set to answer or originate MOV A,C STA MSPEED ;set the file transfer time value XRA A ;clear the flags RET ; ;======================================================================= ; CALCULATES THE BAUD RATE DIVISOR ; ; Returns with current baud rate intact if a blank or null in the speed ; field (extent area). ; GTBAUD LDA FCB+9 ;get 1st digit of requested baudrate CPI ' ' ;if a space, return with current speed LDA CURRENT RZ LDA FCB+9 ORA A ;if a null, return with current speed LDA CURRENT RZ ; LXI D,FCB+9 ;get the requested speed LXI H,0 ; DECLP LDAX D ;get the ASCII digit INX D CPI ' ' JZ DECLP CPI '0' ;numerals are 0-9 JC BADRTE CPI '9'+1 JNC BADRTE SUI '0' MOV B,H MOV C,L DAD H DAD H DAD B DAD H ADD L MOV L,A JNZ DIGNC INR H ; DIGNC MOV A,E CPI FCB+12 JNZ DECLP MOV A,H CMA MOV D,A MOV A,L CMA MOV E,A INX D LXI H,15625 ;250000/16 LXI B,-1 ; DIVLP INX B DAD D JC DIVLP MOV A,B ORA A MOV A,C STA CURRENT ;can use this the next time by default RZ ; BADRTE CALL ERXIT DB '++ INVALID BAUDRATE ++$' ; ;======================================================================= ; SETS 'MSPEED' TO BAUD RATE ; STMSPD MVI C,0 ;changes PMMI mspeed for 110-710 bps CPI 100 ;<300 bps RNC INR C ;C=1 for 300 bps CPI 40 ;<450 bps RNC INR C ;C=2 for 450 bps CPI 30 ;<600 bps RNC INR C ;C=3 for 600 bps CPI 24 ;<710 bps RNC INR C ;C=4 for 710 bps RET ; ; Change baudrate on-the-fly with CTL-B (while in terminal mode) ; NWBAU LDA PMMIMD ORA A RZ CALL J$ILPRT DB CR,LF,'Enter new Baudrate: ',0 LXI H,FCB+9 MVI M,' ' ;keep current baud if none included ; NWBAU1 CALL KEYIN ;get the baud rate CPI CR ;carriage ret finishes baud rate entry CZ CRLF ;if a 'CR', baud rate has been entered JZ FXBAUD ;go change the baud rate ; NWBAU2 CPI '0' ;numerals are 0-9 JC NWBAU1 CPI '9'+1 JNC NWBAU1 ;if not a numeral, ignore, ask again MOV M,A ;store answer starting at FCB+9 CALL TYPE ;show the numeral on the CRT INX H ;next storage location in FCB JMP NWBAU1 ;get the next numeral ; ;======================= PARITY ROUTINES =============================== ; ;--->PRITY: Routine to setup PMMI for odd/even parity. ; PRITY LDA PMMIMD ;is modem a PMMI? ORA A ;set flags RZ ;no, return LDA OPRITY ;get odd parity request byte ORA A ;set flags JNZ EVNPAR ;if not odd see if it is even LDA UARTCT ;get uart/modem control byte ANI ODPAMSK JMP PRITY1 ; EVNPAR LDA EPRITY ;get even parity request byte ORA A ;set flags RNZ ;if even parity not specified return LDA UARTCT ;get uart/modem control byte ANI ODPAMSK ;set for parity ORI EVPAMSK ;now set for even parity ; PRITY1 STA UARTCT JMP O$MDCTL1 ;send to PMMI ; NPARIT LDA PMMIMD ORA A RZ LDA UARTCT ORI NOPAMSK ;reset parity bit on PMMI JMP O$MDCTL1 ; ;======================================================================= ; HAYES/PMMI DIALING ROUTINES ;======================================================================= ; DS 128 ;for expansion ; ; Modem control command words ; BRKMSK EQU 0 ;tele line on hook (break while dialing) CLEAR EQU 3FH ;idle mode DTMSK EQU 1 ;dial tone mask MAKEM EQU 1 ;tele line make (off hook) RBLMT EQU 35 ;7 seconds to wait til no-ring-heard msg RBWAIT EQU 50 ;5 second delay before redialing PMMI SMWAIT EQU 15 ;1.5 sec delay before redialing HAYES TMPUL EQU 80H ;timer pulses mask bit TRATE EQU 250 ;value for 0.1 second ; ; Dialing routine ; DIAL LDA PMMIMD ;using a PMMI modem? ORA A JNZ DIAL1 LDA AUTDIAL ORA A RZ ;return if neither modem CALL SMNSY ;make sure autodial modem speaker is on ; DIAL1 XRA A STA AUTDIR ;zero the direct to terminal mode flag STA AUTOFL ;zero the auto-linking flag STA CRFLAG ;zero the continuous dial flag LXI H,0 SHLD DIALCT ;zero the dial count LXI H,CMDBUF+1 ;point to the number of characters in MOV A,M ; the buffer, then get the number CPI 3+1 ;anything typed after 'CAL'? JC DIAL2 ;if not, go through library routine ; ; If there were only 3 characters, then "CAL<RET>" was typed -- the user ; obviously expecting to get a phone number (or letter) from the library ; file. If 4 or more, a number (or letter) was typed in from the menu ; command line, so move the characters down 4 to compensate. Needed for ; auto-redialing of menu command line entries. ; MOV C,A ;put into the 'C' reg. MVI B,0 ;will move original number down 4 SUI 4 ;eliminate the 'CAL' portion MOV M,A ;store new count at cmdbuf+1 INX H ;CMDBUF+2 (first character of string) XCHG ;'DE' now has CMDBUF+2 LXI H,CMDBUF+6 ;point to number (or letter) to dial CALL MOVER ;move the group down 4 places JMP DIAL4 ;check if library number, then dial ; ; Comes here if no phone number was manually entered after 'CAL' and if ; no phone library code was entered. Displays the phone number library ; then asks for an entry. ; DIAL2 MVI C,18 ;number of lines to move LXI H,NUMLIB ;start of phone number library LXI D,BUFFER ;buffer add. to store them temporarily CALL NEWLINE ;start with CR/LF STAX D ;+LF INX D ;and bump it ; DIAL3 MVI B,LIBLEN ;number of bytes to move CALL MOVE ;move to buffer CALL SPACES ;2 entries + 3 spaces = 71 characters PUSH H ;save source address PUSH D ;save destination address LXI D,(17*LIBLEN) ;get offset of 17 times entry length DAD D ;add it to source address POP D ;restore destination address MVI B,LIBLEN ;get length of library entry CALL MOVE ;move another entry POP H ;restore source address CALL NEWLINE DCR C ;one less line to print JNZ DIAL3 ;if not zero, print another MVI A,'$' ;BDOS print routine terminate character STAX D ;store in buffer CALL CLRTST MVI C,PRINT LXI D,BUFFER ;print the library on the CRT CALL BDOS CALL J$ILPRT ;ask which one is wanted DB CR,LF,'Enter library code or phone number,',CR,LF DB 'Hit RET to abort this function now or',CR,LF DB 'CTL-X quits while dialing or ringing: ',0 LXI D,CMDBUF CALL INBUF ;get the answer from the keyboard ; ; You now have either a library code or a manually entered phone num- ; ber. These either came from the menu command line or from the library ; command line. Next we see if a code, if so, get the corresponding ; line with phone number from the library. If a number greater than ; one digit, we ignore the library look-up. (Ringback numbers must end ; with letter 'R'.) ; DIAL4 LXI H,CMDBUF+1 ;number of characters in buffer MOV A,M ORA A ;null means CR was typed JZ DLXIT2 ;abort dialing, return to menu STA NUMBER LDA CMDBUF+3 ;see if at least two characters entered CPI '/' ;slash for linking, direct to terminal CZ AUTO ; mode on answer CPI ',' ;comma used for linking CZ AUTO1 ;if yes, set it up for auto-linking ; ; Check to see how many characters were typed. If more than one, then ; it was a hand-entered phone number, so exit. ; DIAL5 CALL DIALBG ;disconnect, reconnect LDA AUTOFL ;auto-link flag set? ORA A JNZ AUTO2 ;if yes exit LDA NUMBER ;number of characters in buffer STA CMDBUF+1 ;reset the character count, if needed CPI 1+1 ;more than one character? JNC DIAL14 ;if more than one, hand-entered number LXI H,CMDBUF+2 ;first character in phone number line ; ; If just one character entered, see if a (A-Z) letter ; DIAL6 MOV A,M MVI B,'A' ;first letter of alphabet MVI E,0 ;counts number of letters to match MVI C,26 ;number of letters in alphabet ; DIAL7 CMP B ;letter from table? JZ DIAL9 ;if yes, get phone number, else INR B ;make next letter (A-Z) INR E ;count up DCR C ;count down JNZ DIAL7 ;try next one in (A-Z) table ; ; If not (A-Z) then should be (0-9) ; MVI B,'0' ;first digit to check MVI E,26 ;point past alpha codes MVI C,10 ;number of digits in table ; DIAL8 CMP B ;number from table? JZ DIAL9 ;if yes, go dial, else INR B ;make next digit to compare INR E ;make next table line number DCR C ;count down - loop counter JNZ DIAL8 ;loop JMP DIALBD ;error if not a number or a letter ; ; Now have a match between the requested code and one in the library. ; E-reg. holds the library line number (1-36) that matches the requested ; code (A-Z or 0-9). ; DIAL9 LXI H,NUMLIB ;phone number library LXI B,LIBLEN ;length of library entry MOV A,E ;number of times to library length to HL ORA A ;set flags JZ DIAL11 ; DIAL10 MOV A,M ;get first char of selected lib entry ORA A ;set flags JZ DIALBD ;send bad library msg and abort DAD B ;increment 'HL' by library length DCR E ;countdown JNZ DIAL10 ;not there yet, loop ; ; Now have the line in the phone number library matching the requested ; letter so store that line starting at 'CMDBUF+1' ; DIAL11 MVI B,LIBLEN ;number of characters to get from table LXI D,CMDBUF+1 ;point to buffer XCHG ;'HL' points to CMDBUF+1 MOV M,B ;length of each table entry XCHG ;restore the registers INX D ;point to first char position in buffer CALL MOVE ;move the table entry to the buffer ; ; Now have the full line including phone number in 'CMDBUF' area. Scan ; past the descriptive portion of library entry - terminate scan at the ; first '.' This allows commas and numbers to be part of the text, such ; as: ; 'A=DataTech, Node 7..1-408-238-9621' ; DIAL12 LDA AUTDIAL ;using a Hayes-type modem? ORA A CNZ SMINIT ;if yes, initialize LXI H,CMDBUF+1 MOV E,M ;number of chars in buffer INX H ;point to 1st character in buffer ; DIAL13 MOV A,M ;get next character CALL TYPE ;show it INX H ;bump pointer DCR E ;decrement count JZ DLXIT ;exit if no '.' (bad library entry) CPI '.' ;dot? JZ DIAL15 ;yes, go dial the phone JMP DIAL13 ;no, loop for next character ; ; There is a user entered phone number in 'CMDBUF' area ; DIAL14 LDA AUTDIAL ;using a Hayes-type modem? ORA A CNZ SMINIT ;if yes, initialize LXI H,CMDBUF+1 ;get the number of characters in buffer MOV A,M MOV E,M INX H ;point to 1st character to dial ; ; Loop to dial the phone number pointed to by 'HL', character count in ; the 'E' register. ; DIAL15 MOV A,M ;get first number from the buffer ORA A ;set flags JZ DIALBD ;bad number if a null ; ; Dial a digit, check keyboard for abort ; CALL DL ;dial a digit, show on CRT CALL STAT ;keypress? JZ DIAL17 ;if not, exit CALL KEYIN ;yes, go get it CPI CANCEL ;CTL-X? JNZ DIAL17 ;if not, exit LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ DLXIT ;if not, exit now, otherise clear line ; ; If using an autodial modem, backspace 30 tims to make sure the entire ; number plus 'DT' part of 'ATDT' is erased. ; MVI C,30 ; DIAL16 MVI B,BKSP CALL SNDCHR ;send to the modem to cancel call DCR C JNZ DIAL16 ;if not zero, do another MVI B,CR CALL SNDCHR MVI A,' ' CALL TYPE ;show on CRT JMP DLXIT ;now go abort ; DIAL17 INX H ;bump pointer DCR E ;one less character to go JNZ DIAL15 ;if not done, send the next digit ; ; Show the number of dial attempts ; CALL J$ILPRT DB ' - try #',0 LHLD DIALCT ;increment the dial count INX H SHLD DIALCT CALL DECOUT ;show number of attempts so far MVI A,' ' ;extra space to position cursor CALL TYPE LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ DIAL19 ;if not, exit MVI B,CR ;tells the modem the number is done CALL SNDCHR ;just have one character to send ; DIAL18 CALL J$INMDM ;catch any output from the modem JNC DIAL18 JMP SMRSLT ;number sent to modem, now get results ; ; Dialing is all done, this section is PMMI-only ; DIAL19 MVI A,07FH ;turn on PMMI 'DTR' CALL O$MDCTL2 ;timer rate? MVI B,1 ;0.1 second per interval CALL J$TIMER MVI A,5DH ;2 stop bits, nor parity, 8 data bits CALL O$MDCTL1 MVI D,4 ;clear to send mask MVI C,WAITCTS ;wait time for CTS CALL WAIT ;(30 seconds, can set 'WAITCTS' for ;up to 51 seconds for European use) ; ; If PMMI connection made, go get options for starting communications ; JNC CONMD ;connection made ; ; Connection not made, see if a redial is desired ; ; CALL DSCONT ;hang-up so we can redial ; DLGN LXI SP,STACK ;reset the stack to normal, just in case LDA CRFLAG ;continuous redial flag ORA A JNZ DLGN2 ;if already set, go dial again CALL J$ILPRT ;see if we should keep trying DB CR,LF,CR,LF,' Redial? (C/Y/N/Q): ',BELL,0 CALL KBDCHR CALL CRLF ;turn up a line CPI 'Y' ;redial? JZ DLGN2 ;yes, redial CPI 'C' ;continuous redial? JZ DLGN1 ;if yes, set continuous redial flag CPI 'Q' JNZ DLXIT1 ;none of these, quit CALL SMQT ;turn off the loud speaker for 'Quiet' ; DLGN1 MVI A,1 STA CRFLAG ;continuous redial flag ; DLGN2 LDA AUTDIAL ;using a Hayes-type modem? ORA A JNZ DLGN3 ;if yes, exit MVI B,RBWAIT ;wait for PMMI reset (or busy) CALL J$TIMER ;or busy tone may be sensed as dialtone JMP DLGN4 ; DLGN3 MVI B,SMWAIT CALL J$TIMER ; DLGN4 CALL CRLF ;start a new line JMP DIAL5 ;redial entry point ; ; Connection has been made ; CONMD LDA PMMIMD ORA A JZ CONMD1 LDA CURRENT ;get curret baud rate CALL O$BAUDRP ;set baudrate ; CONMD1 MVI B,2 CALL J$TIMER CALL J$ILPRT DB BELL,CR,LF,CR,LF,' CONNECTED',0 LDA AUTDIR ;going direct to terminal mode? ORA A JNZ RETRN LDA CRFLAG ;in continuous redial or first time try? ORA A JZ RETRN ;go to terminal mode if first time CALL J$ILPRT DB ' - any key for terminal mode ',0 ; CONMD2 MVI E,10 ; CONMD3 CALL STAT ;keypress? JZ CONMD4 ;exit if no keys pressed CALL KEYIN XRA A JMP RETRN ;key pressed, go to terminal mode ; CONMD4 MVI B,1 ;wait 0.1 second CALL J$TIMER DCR E ;one less loop to make JNZ CONMD3 ;see if a keyboard character yet MVI A,BELL ;sound a bell CALL TYPE JMP CONMD2 ;reset the counter ; ; Automatic dialing routine, prints the number being dialed. If we find ; 'R', it either has to be the final character for ringback or toss it. ; DL CALL TYPE ;print whatever character, dashes, etc. CPI 'R' ;could it be a ringback character? JNZ DL1 ;if not, probably a number so exit MOV A,E ;get the character count. Is this "R" CPI 1 ; the last character in the string? JZ RNGBK ;if yes, set up ringback RET ;if not, ignore the 'R' ; DL1 MOV B,A ;store the character for now CALL DLD ;check for alternate dialing like 'MCI' MOV A,B ;get the original character back ; DL2 CPI '*' ;* is a valid dial digit JZ DL3 CPI '#' ;# is a valid dial digit JZ DL3 CPI ',' ;comma indicates a short delay-time JZ DL3 CPI '0' ;digits are (0-9) RC ;exit less than ASCII '0' CPI '9'+1 RNC ;exit if more than ASCII '9' SUI '0' ;strip ASCII - could also do 'ANI 0FH' JNZ DL3 MVI A,10 ;convert zero to 10 pulses ; ; Sends the digit to the modem. Waits 100 ms. after each digit to in- ; sure it gets to the modem ok. ; DL3 MOV C,A LDA PMMIMD ;using a PMMI? ORA A JNZ DL4 ;if yes, exit CALL SNDCHR ;character is already in the 'B' reg. MVI B,1 ;slight delay to let modem settle down JMP J$TIMER ; DL4 LDA PULRATE CALL O$BAUDRP ; DL5 CALL I$BAUDRP ANI TMPUL JNZ DL5 ; DL6 CALL I$BAUDRP ANI TMPUL JZ DL6 ; DL7 MVI A,MAKEM CALL O$MDCTL1 ; DL8 CALL I$BAUDRP ANI TMPUL JNZ DL8 MVI A,BRKMSK CALL O$MDCTL1 ; DL9 CALL I$BAUDRP ANI TMPUL JZ DL9 DCR C JNZ DL7 MVI A,MAKEM CALL O$MDCTL1 MVI B,2 JMP J$TIMER ; ; Print bad library number message and abort if a null is encountered. ; DIALBD CALL J$ILPRT DB CR,LF,CR,LF,'++ Bad library number called ++',CR,LF,0 ; DLXIT CALL CRLF ;turn up a new line ; DLXIT1 LXI SP,STACK ;make sure the stack is normal again ;;; CALL J$GOODBY ;user routine to disable DTR, if any DB 0,0,0 ;(PREVENT DOUBLE TIME FOR DISCONNECT) CALL J$DSCONT ;hang up the phone and reset the modem ; DLXIT2 XRA A STA CRFLAG ;reset the continuous redial flag JMP MENU ; ; Disconnect from the line, reconnect and wait for the dialtone. ; DIALBG LDA AUTDIAL ;Hayes-type autodial modem? ORA A RNZ ;if yes, finished MVI A,MAKEM ;go off-hook CALL O$MDCTL1 MVI D,DTMSK ;dial tone mask MVI C,50 ;waits up to 10 seconds for dial tone CALL WAIT ;wait for dial tone ; ; Wait subroutine will return with carry set if unable to get dialtone. ; If carry is not set, the dialtone was received. ; RNC ;if dial tone within 10 seconds CALL J$ILPRT ;otherwise print error message DB CR,LF,CR,LF,'++ NO DIAL TONE ++ ',BELL,0 POP H ;restore the stack to normal JMP DLXIT ;forget it. ; ; Do any alternate dialing such as 'MCI' or 'SPRINT' ; DLD LDA AUTDIAL ;using a Hayes-type modem? ORA A RZ ;if not, exit LDA TCHPUL ;using touch tone dialing? CPI 'T' RNZ ;if not, ignore MOV A,B ;get the character back CPI '<' ;alternate dialing system #1 (MCI?) JNZ DLD1 ;if not, exit PUSH H ;save the current values LXI H,ALTDL1 ;alternate dialing area JMP DLD2 ; DLD1 CPI '>' ;alternate dialing system #2 (Sprint?) RNZ ;if neither, exit PUSH H ;save the current values LXI H,ALTDL2 ; DLD2 MOV A,M CPI '$' ;ready to terminate? JZ DLD3 ;if yes, exit ; ; Move the semicolons up one line if you do not want to see the Sprint ; number dialed. ; CALL TYPE ;display the character ;;; DB 0,0,0 ;(keeps the total bytes similar) MOV B,A ;need the char. in 'B' to send to modem CALL DL2 ;send proper characters to the modem INX H ;next location CALL STAT ;keypress? JZ DLD2 ;if not, do the next character CALL KEYIN ;yes, go get it CPI CANCEL ;CTL-X? JNZ DLD2 ;if not, handle the next character POP H ;if yes, reset the stack JMP DLXIT ;if yes, exit ; DLD3 MVI A,' ' MOV B,A ;clears 'B' from last digit sent CALL TYPE POP H ;restore the stack RET ; ; Disconnect the autodial modem from the phone line. Sends 'I, CR' to ; the Racal-Vadic to return to IDLE mode ; GOODBY DSCONT LDA AUTDIAL ;using a Hayes-type autodial modem? ORA A JNZ DSCON1 ;if yes, skip PMMI section XRA A CALL O$MDCTL1 ;hang up CALL O$MDCTL2 ;clear DAV, ESD, etc. PUSH B MVI B,10 ;1 second for PMMI to disconnect CALL J$TIMER POP B RET ; ; Disconnect the autodial modem from the phone line ; DSCON1 MVI B,12 ;1.2 seconds pause CALL J$TIMER LXI H,SM$DISC ;get into command mode CALL SNDOUT MVI B,12 ;another 1.2 seconds pause CALL J$TIMER MVI A,' ' ;space character ; ; If printing +++ and ATH, ATD, etc. move the three semicolons up one ; line to include a space on the CRT to look better. ; DB 0,0,0 ;;; CALL TYPE ;show on local CRT only LXI H,SM$DISC1 ;now disconnect the modem CALL SNDOUT ; DSCON2 CALL J$INMDM ;wait 0.1 seconds after last character JNC DSCON2 RET ; ;----------------------------------------------------------------------- ; Hayes Stuff ; SMQT LDA SPKRFLG ;speaker flag set to quiet? ORA A RNZ ;if yes, forget it MVI A,YES STA SPKRFLG ;flip the flag to quiet, now LXI H,SM$SOFF CALL SNDOUT MVI B,6 JMP J$TIMER ;time for an 'OK' from modem and return ; SMNSY LDA SPKRFLG ;speaker already turned on? ORA A RZ ;if yes, forget it MVI A,NO ;set for noisey, now STA SPKRFLG LXI H,SM$SON CALL SNDOUT MVI B,6 JMP J$TIMER ; ; Hayes-like autodial modem control codes ; SM$DIAL DB 'ATDT $' ;set for touch (or pulse) dialing SM$DISC DB '+++$' ;puts the modem in local command mode SM$DISC1 DB 'ATH',CR,'$' ;disconnects the modem SM$SOFF DB 'ATM0',CR,'$' ;turns the speaker off SM$SON DB 'ATM1',CR,'$' ;turns the speaker on SPKRFLG DB 0 ;0 = speaker has not been silenced ; ; Set the autodial modem for pulse dialing ; SMINIT LDA TCHPUL ;touch or pulse dialing for autodial? STA SM$DIAL+3 ;store LXI H,SM$DIAL CALL SNDOUT ; SMINT1 CALL J$INMDM ;wait for modem to finish, if needed JNC SMINT1 RET ; ; Send the string pointed to by 'HL' to both the CRT and the modem ; SNDOUT CALL SNDNOW ;wait until modem is ready MOV A,M ;get the character CPI '$' RZ ;if yes, finished MOV A,M CALL O$MDDATP ;send to modem ; ; If you want to print the +++ ATD, etc. from Hayes-type units, move the ; three semi-colons down one line. ; ;;; CALL TYPE ;show on CRT DB 0,0,0 ;(PREVENT SHOWING THE +++ ATD) INX H JMP SNDOUT ; ; Checks for answer from Hayes-type autodial modem ; SMRSLT CALL RCVRDY ;see if any incoming character yet JZ SMRSL1 ;if yes, exit and look at it CALL STAT ;else see if want to abort ringing JZ SMRSLT ;if neither, wait for one of them CALL KEYIN ;get character from keyboard CPI CANCEL ;CTL-X to terminate dialing? JNZ SMRSLT ;if not, keep going MVI B,CR CALL SNDCHR ;tells the modem to hang up right away JMP DLXIT ;abort dialing routine ; SMRSL1 CALL I$MDDATP ;get the character, then ANI 7FH ;remove any parity MOV B,A ;store for 'GIVLF' area if needed CPI 'B' ;'BUSY' (for Anchor modems, etc.) JZ BUSY ;if busy, flush string and retry CPI '0' ;'OK' single digit result code JZ SMRSL1 ;ok, loop for next response CPI 'O' ;'OK' verbose digit result coe JZ SMRSL1 ;ok, loop for next response CPI '1' ;'CONNECT', single digit result code JZ ON$LIN ;connected, reset redial flags CPI 'C' ;'CONNECT', verbose result code JZ ON$LIN ;connected, reset redial flags CPI '3' ;'NO CARRIER', single digit result code JZ NO$CAR ;no carrier, flush string and retry CPI 'N' ;'NO CARRIER', verbose result code JZ NO$CAR ;no carrier, flush string and retry CPI '4' ;'ERROR', single digit result code JZ FAILED ;error, go display CPI 'E' ;'ERROR', verbose result code JZ FAILED ;error, go display CPI '5' ;'CONNECT 1200' single digit result code JZ ON$120 ;connected, reset redial flags ; SMDM1 CPI LF ;<LF> is end-of-line for verbose mode JZ SMRSLT ;yes, go get the next response CPI CR ;<CR> may precede digit in digit mode JZ SMRSLT ;yes, go get the next response ; CALL STAT ;else, see if want to abort ringing JZ SMDM1A ;if not, get next character CALL KEYIN ;else, get character from keyboard CPI CANCEL ;CTL-X to terminate dialing? JNZ SMDM1A ;if not, keep going MVI B,CR CALL SNDCHR ;tells the modem to hang up right away JMP DLXIT ;abort dialing routine ; SMDM1A CALL J$INMDM ;get next character JMP SMDM1 ;loop until end of response encountered ; ; The Anchor modem gives a busy result code, although still waits the ; normal time-out period to do it. ; BUSY CALL J$ILPRT DB 'busy! ',0 JMP DLGN ; ; Failed call is usually caused by continuous ringing with no answer. ; The modem times out (can be set to either 30 seconds or 60 seconds.) ; FAILED CALL J$ILPRT DB 'abort ',0 JMP DLGN ; NO$CAR CALL J$ILPRT DB 'no carrier ',0 JMP DLGN ; ON$LIN CALL J$ILPRT DB 'on line',0 JMP CONMD ; ON$120 CALL J$ILPRT DB 'on at 1200',0 JMP CONMD ; ; end of special Hayes-like handling ;----------------------------------------------------------------------- ; ; Handles the special ringback numbers. Dials, lets it ring only once, ; hangs up and then redials. ; RNGBK LDA AUTDIAL ;using a Hayes-type modem? ORA A JNZ RNGBK2 ;if yes, ringback not possible LDA CMDBUF+1 ;get the number of chars. in the buffer DCR A ;subtract 1 to avoid the ringback char STA CMDBUF+1 ;store the new value MVI D,DTMSK ;load tone detect mask MVI C,RBLMT ;waits up to 7 seconds for a ring CALL WAIT JNC RNGBK0 ;if no ring detected, pretend we got one JMP RNGBK1 ;hangup, redial, & listen for carrier ; RNGBK0 MVI B,25 ;got a ring, wait 2.5 seconds CALL TIMER CALL I$BAUDRP ;is tone still present? ANA D JZ DLGN ;yes, must be busy, do a normal redial ; ; Hang up, redial and listen for dial tone ; RNGBK1 CALL HANGUP ;hang up the phone CALL J$ILPRT DB 'ringback set, first ring ',0 MVI B,RBWAIT ;wait 5 seconds before redialing CALL J$TIMER ; for line to clear, etc. CALL DIALBG ;disconnect, reconnect, wait for tone JC DLXIT LDA NUMBER ;number of characters in buffer CPI 1+1 ;more than one character? JNC DIAL14 ;if more than one, hand-entered number JMP DIAL12 ;go redial for the table ringback number ; RNGBK2 CALL J$ILPRT DB CR,LF,'++ No ringback for autodial modem ++',0 POP H ;reset the stack JMP DLXIT ; HANGUP MVI A,CLEAR CALL O$MDCTL2 XRA A JMP O$MDCTL1 ;turn off DTR, originate/answer tones ; ; This is the auto-linking area. Up to 32 numbers may be linked, each ; should have a comma for a separator, such as: ; ; B>>COMMAND: CAL A,F,3,A,G,A,H ; AUTO STA AUTDIR ;direct to terminal mode on answer ; AUTO1 MVI A,0FFH ;set the flags to -1 STA AUTOFL ;set the auto-linking flag STA CRFLAG ;set the continuous redial flag MVI B,64 ;maximum number of characters to move LXI H,CMDBUF+1 ;start with number in the string LXI D,CMDBUF+65 ;move to aft part of buffer JMP MOVE ;when finished return to caller ; ; Linking routine ; AUTO2 LDA AUTOFL ;increment the flag for each new try INR A INR A STA AUTOFL MOV C,A ;hold momentarily MVI B,0 LDA CMDBUF+65 ;see how many characters typed CMP C JNC AUTO3 MVI A,1 ;reset the flag to start over MOV C,A STA AUTOFL ; AUTO3 LXI H,CMDBUF+65 DAD B JMP DIAL6 ;go to work ; AUTDIR DB 0 ;direct to terminal mode on answer AUTOFL DB 0 ;auto-linking flag NUMBER DB 0 ;number of characters in CMDBUF ; ; Time-out routine. Must be called with mask in 'D' reg. for input at ; relative port 2 and number of seconds (times 10) in 'C' reg. ; WAIT MVI B,2 CALL TIMER ;wait for timer to go high then low CALL I$BAUDRP ;PMMIADDR+2 (modem status port) ANA D ;(CTS or dialtone mask) RZ ;active low, so return on 0 PUSH B ;save the registers PUSH D CALL STAT ;keypress? JZ WAIT1 ;if not, exit CALL KEYIN ;yes, get char CPI CANCEL ;CTL-X to intentionally abort? JZ WAIT2 ;yes, disconnect, jmp to menu ; WAIT1 POP D ;restore the registers POP B DCR C ;count-down JNZ WAIT STC ;set carry to indicate mask not set RET ; WAIT2 POP D ;restore the registers POP B JMP DONETD ;disconnect ; ;======================================================================= ; SPECIAL PMMI MENU ; SPMEN LDA PMMIMD ORA A RZ CALL J$NXTSCR CALL J$ILPRT DB ' Additional Subcommands for PMMI Modems' DB CR,LF,LF DB ' Modem control:',CR,LF DB ' A - Answer tone for send or receive',CR,LF DB ' O - Originate tone for send or receive',CR,LF,LF DB ' Parity option:',CR,LF DB ' 1 - Set and check for odd parity',CR,LF DB ' 0 - Set and check for even parity',CR,LF DB ' Both ends must be capable of these options' DB CR,LF DB ' which are available only in R and S modes.' DB CR,LF DB ' The parity checking will be part of the' DB CR,LF DB ' file transfer protocol.',CR,LF,LF DB ' Speed Options:',CR,LF DB ' After entering your primary and secondary ' DB 'options,',CR,LF DB ' you can set the modem speed by placing a ' DB ' "." after',CR,LF DB ' the options followed by the speed e.g., ' DB '300, 600.',CR,LF,LF DB ' EXAMPLE: SBO.600 will set the modem for ' DB '600 baud',CR,LF,0 RET ;all done ; ;======================================================================= ; ; Timer routine. Waits 0.1 seconds for each unit in 'B' reg. ; TIMER PUSH H ; TIMER1 PUSH B ; TIMER2 CALL J$INMDM ;100 ms. delay per loop JNC TIMER2 POP B DCR B JNZ TIMER1 POP H RET ; ; CALCULATES DISK SPACE REMAINING IF CP/M+ ; CKCPM3 CALL CRLF MVI C,CPMVER ;check version # CALL BDOS MOV A,L CPI 30H ;version 3.0? RC ;use normal method if not CP/M 3.0 POP H ;remove 'CALL CKCPM3' from stack MVI C,CURDSK CALL BDOS MOV E,A MVI C,46 ;CP/M 3.0 compute free space call CALL BDOS MVI C,3 ;answer is 3 bytes long (24 bits) ; FREE30 LXI H,TBUF+2 ;answer is located here MVI B,3 ;convert to 'K' length ORA A ; FREE31 MOV A,M RAR MOV M,A DCX H DCR B JNZ FREE31 ;loop for 3 bytes DCR C JNZ FREE30 ;shift 3 times LHLD TBUF ;get result in 'K' JMP PRTFREE ;display result ; ;======================================================================= ; ORG (($+255+50)/256*256)-50 ;so 'NUMLIB' starts on even page ; ;----------------------------------------------------------------------- ; ; Long distance alternate dialing such as MCI, SPRINT, etc. Must end ; with a '$', use as many commas (2 seconds delay, each) as needed to ; let the alternate dialing code return with a new dial tone. Fill in ; any character (periods are fine) after the $ to keep number of columns ; to 24, i.e., '1234567,,,,12345,,$.....' -- the first group is the ; MCI or SPRINT access number, the second group is the user number. A ; small delay is usually required after the billing number also. ; ALTDL1 DB 'xxxxxxx,,,,,,xxxxxxxx,,$' ;accessed by a < character ; ALTDL2 DB 'xxxxxxx,,,,,,xxxxxxxx,,$' ;accessed by a > character ; ;======================================================================= ; HEXSHO DB SHOWHEX ;can easily change SHOWHEX via DDT ; SAVSIZ DB XFRSIZ*8 ;can easily change buffer size for file ;transfers with DDT for "NUMLIB-1" ad- ;dress. Normally 4k (32 records or 4k). ; ;======================================================================= ; ; Phone number library table for auto-dialing. Each number must be as ; long as"LIBLEN" (EQU at start of program). Some areas require extra ; characters such as: 1-313-846-7127. Room is left for those. Use ; a (<) for alternate dialing system #1, and a (>) for alternate dialing ; System #2. Either would preceed the actual number, for example: ; ; DB 'A=Alan Alda..........<123-456-7890' ;'A' ; ; - - - - - - - - - - - - ; ; NOTE: At least one dot (.) MUST precede the actual phone number ; ; '----5---10---15---20---25---30--34' NUMLIB DB 'A=Bob Robesky.......1-209-227-2083' ;'A' DB 'B=Byron McKay.......1-415-965-4097' ;'B' DB 'C=Chuck Metz........1-408-354-5934' ;'C' DB 'D=Bruce Jorgens.....1-509-255-6324' ;'D' DB 'E=Bill Earnest......1-215-398-3937' ;'E' DB 'F=Chuck Forsberg....1-503-621-3193' ;'F' DB 'G=Ron Fowler........1-414-563-9932' ;'G' DB 'H=Kirk De Haan......1-408-296-5078' ;'H' DB 'I=Jack Kinn.........1-817-547-8890' ;'I' DB 'J=Walt Jung.........1-301-661-2175' ;'J' DB 'K=Keith Petersen....1-313-759-6569' ;'K' DB 'L=Larry Snyder......1-305-671-2330' ;'L' DB 'M=Wayne Masters.....1-408-378-7474' ;'M' DB 'N=Dick Mead.........1-213-799-1632' ;'N' DB 'O=Al Mehr...........1-408-238-9621' ;'O' DB 'P=Pasadena RBBS.....1-213-577-9947' ;'P' DB 'Q=Mark Pulver.......1-312-789-0499' ;'Q' DB 'R=Bruce Ratoff......1-201-272-1874' ;'R' DB 'S=Ken Stritzel......1-201-584-9227' ;'S' DB 'T=TCBBS, Dearborn...1-313-846-6127' ;'T' DB 'U=AnaHUG RCPM.......1-714-774-7860' ;'U' DB 'V=Dave Austin.......1-707-257-6502' ;'V' DB 'W=Bill Wood.........1-619-256-3914' ;'W' DB 'X=Charlie Hoffman...1-813-831-7276' ;'X' DB 'Y=Byron Kantor......1-619-273-4354' ;'Y' DB 'Z=Spare.............1-xxx-xxx-xxxx' ;'Z' DB '0=Paul Bagdonovich..1-201-747-7301' ;'0' DB '1=Bill Parrott......1-913-682-3328' ;'1' DB '2=Alex Soya.........1-305-676-3573' ;'2' DB '3=Tony Stanley......1-912-929-8728' ;'3' DB '4=Tampa Bay Bandit..1-813-937-3608' ;'4' DB '5=Thousand Oaks.....1-805-492-5472' ;'5' DB '6=Spare.............1-xxx-xxx-xxxx' ;'6' DB '7=Spare.............1-xxx-xxx-xxxx' ;'7' DB '8=Spare.............1-xxx-xxx-xxxx' ;'8' DB '9=Spare.............1-xxx-xxx-xxxx' ;'9' DB 0 ;end ; '----5---10---15---20---25---30--34' ; ;----------------------------------------------------------------------- ; ; This is the storage area for the ten function keys. The M7FNK.COM ; program dynamically allocates the storage for the keys. Thus, no ; function key is limited to so-and-so many characters. Rather, the ; total number of bytes in the function key library (including flags) ; is 256. ; INTCPT DB '^' ;intercept character (prefix) ; FNCTBL DB 0,'DIR ',CR,0 DB 1,'DIR *.* $U0AD ',CR,0 DB 2,'XMODEM S ',0 DB 3,'XMODEM R ',0 DB 4,'BYE ',CR,0 DB 5,'RBBS ',CR,0 DB 6,'(vacant)',0 DB 7,'(vacant)',0 DB 8,'(vacant)',0 DB 9,'Nice chatting, see you again soon... ',CR,0 DS 256-($-FNCTBL) ; ; ;******************************************************************** ; PROGRAM STARTS HERE ;******************************************************************** ; START LXI H,0 DAD SP ;add the current stack pointer to 'HL' SHLD STACK LXI SP,STACK ;start local stack ; ; The 'FIXCNT' calculations are done here and the values stored so the ; overhead of doing the calculation is not incurred in the RECV routine ; where it is desired to pick up a character from the modem data port as ; quickly as possible. ; LXI H,624 ;adjust to get 1 second time intervals CALL FIXCNT SHLD TIMVAL LXI H,39 ;should be 1/16 of above value CALL FIXCNT SHLD QUIKTIM ; ; Now display the program name and version number and we are under way ; CALL ILPRT DB CR,LF,'MODM',VERSION/100+'0',VERSION MOD 100/10+'0' DB VERSION MOD 10+'0',' (type M for Menu)',CR,LF,0 CALL J$SYSVR ;give configuration message CALL CRCGN ;generate tables for fast 'CRC' check CALL INITAD ;initialize addresses CALL INTRCPT ;establish the function key intercept CALL PROCOPT ;process any options LDA OPTION ;any options on the command line? CPI ' '+1 JC MENU ;if not, show the menu ; ; Comes here from menu once the options have been set ; RSTRT LXI SP,STACK ;make sure we have a clean stack CALL CKCHAR ;catch any garbage characters left over LDA PMMIMD ORA A JNZ RSTRT1 ;if yes, accept 'C' or 'D' LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ RSTRT2 ;exit if neither modem-type ; RSTRT1 LDA OPTION ;get the option CPI 'C' ;call (dial) function? JZ J$DIAL ;yes, go to it LDA PMMIMD ORA A CNZ STBAUD ;just the PMMI has to check each time ; RSTRT2 CALL MOVEFCB LDA OPTION ;get main option CPI 'D' ;disconnect? JZ DONETD ;yes, disconnect then back to the menu CPI 'M' ;menu asked for? JZ MENU2 ;go display the menu CPI 'R' ;want to receive a file? JZ RCVFL ;exit if yes CPI 'S' ;want to send a file? JZ SNDFL ;exit if yes CPI 'T' ;want terminal mode? JNZ RSTRT3 ;if not, exit XRA A STA ECHOFLG ;reset echo flag STA LOCFLG ;reset local flag JMP DSKSV ;exit if yes ; RSTRT3 CPI 'E' ;want echo mode? JNZ NOECHO ;if not, exit STA ECHOFLG ;set the echo flag XRA A STA LOCFLG ;reset local flag JMP DSKSV ; NOECHO CPI 'L' ;want local echo mode? JNZ NOLOCL ;if not, exit STA LOCFLG ;set the local flag XRA A STA ECHOFLG ;reset echo flag JMP DSKSV ; NOLOCL CALL NVLDMS ;say not a valid option JMP MENU ;then go back to the command mode ; INITAD LHLD 0000H+1 ;BIOS warm reboot jump vector LXI D,3 DAD D SHLD VSTAT+1 ;BIOS console status jump vector DAD D SHLD VKEYIN+1 ;BIOS console keyboard jump vector DAD D SHLD VTYPE+1 ;BIOS console CRT jump vector LXI D,33 DAD D SHLD GOLIST+1 ;BIOS list device status jump vector CALL GETUSER ;get current user number STA OLDUSER ;save to restore upon exit CALL GTMAX ;find maximum ram for printer use JMP J$INITMD ;initialize non-PMMI systems if needed ; ; Get the function key intercept character and put in appropriate places ; INTRCPT LDA INTCPT ;get the function key intercept char. ANI 07FH ;strip off any parity STA GTCMD1+1 ;store in the menu area CPI ' ' ;printing character? JNC INTER2 ;if yes, exit ADI 40H ;change to printing character JMP FIXFNK ;fix-patch area of extra bytes ; INTER1 MVI A,'^' STA MENU3 ;store the "control-" character RET ; INTER2 STA MENU3+1 RET ; ; Process any options - put 0 in appropriate place in option table if ; option is selected ; PROCOPT LXI D,FCB+1 LDAX D STA OPTION CPI ' ' ;exit if no options RZ ; OPTLP INX D LDAX D CPI ' ' JZ ENDOPT LXI H,OPTBL MVI B,OPTBE-OPTBL ; OPTCK CMP M JNZ OPTNO CPI 'O' ;want originate tones? MOV B,A ;store momentarily MVI A,ORIGMOD JZ OPTCK1 MOV A,B ;get the option back CPI 'A' ;want answer tones? JNZ OPTCK2 ;if not, exit MVI A,ANSWMOD ; OPTCK1 STA UARTCT ; OPTCK2 MVI M,0 JMP OPTLP ; OPTNO INX H DCR B JNZ OPTCK CALL NVLDMS POP H ;preserve stack JMP MENU ; ENDOPT LDA VSEEFLG ORA A JNZ CKOPT STA QFLG ;quiet mode for watching data items ; CKOPT LDA OPTION ;check on the primary option CPI 'D' ;going to disconnect? RZ CPI 'E' ;return if echo option RZ CPI 'M' ;return if help option RZ CPI 'L' ;return if local echo option RZ CPI 'T' ;return if terminal mode RZ MOV B,A ;save the primary option for a moment LDA PMMIMD ;PMMI modem? ORA A JNZ CKOPT0 ;if yes, accept 'C' LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ CKOPT1 ;exit if neither ; CKOPT0 MOV A,B ;get the character back CPI 'C' ;going to call a number now? RZ ; CKOPT1 LDA NFILFLG ;saving memory for disk file? ORA A JZ CKOPT2 ;if not, continue POP H ;reset the stack from 'CALL PROCOPT' JMP MENU0 ;go show the 'FILE OPEN' message ; CKOPT2 MOV A,B ;get the option back CPI 'S' JZ CKFILE CPI 'R' JNZ BDOPT ;none of these, bad option LDA BCHFLG ;see if the batch mode flag is set ORA A RZ ;if yes, exit ; CKFILE LDA FCB+17 ;'S' and 'R' need a file name CPI ' ' RNZ ;exit if a file name is present ; REENT CALL ILPRT DB '++ Enter primary option plus file name ++' DB CR,LF,BELL,0 POP H ;reset stack from 'CALL STFCB JMP MENU ;abort to command line ; BDOPT CALL ILPRT DB CR,LF,'++ Bad option ++',CR,LF,LF,0 ; ; Check for any garbage characters on line - catch and ignore ; CKCHAR CALL RCVRDY ;any characters ready to receive? RNZ ;if not, return CALL I$MDDATP ;otherwise get the character and ignore JMP CKCHAR ;check for any additional characters ; ; Revised terminal routine allowing memory save. First checks for bad ; options, to prevent wiping out the disk with accidental memory save. ; DSKSV LDA BCHFLG ;batch flag set? ORA A JNZ DSKSV1 ;if not set, everything is normal MVI A,'B' ;if set, shouldn't be, so reset it STA BCHFLG JMP NOTVLD ;if set, error for 'E', 'L' or 'T' ; DSKSV1 STA XFLG ;will use the ASCII capture buffer size LDA NFILFLG ;already saving for a file? ORA A JZ DSKSV2 ;exit if not, and open a file CALL BUFMS ;tell if buffer if on or off JMP TERM ; DSKSV2 LDA FCB+1 ;first character of filename (if any) CPI ' ' ;file specified? JNZ GOODNM ;yes, good name XRA A STA NFILFLG ;show no file being saved STA SAVEFLG ;reset the flag to zero JMP TERM ; GOODNM CALL ERASF LXI H,FCB3 CALL INITFCB LXI H,FCB ;move the disk name into FCB3 area LXI D,FCB3 MVI B,12 CALL MOVE LXI D,FCB3 ;now make a file from that name MVI C,MAKE CALL BDOS LXI D,FCB3 ;now open the file from FCB3 MVI C,OPEN CALL BDOS LXI H,BUFFER ;reset pointers to start of buffer SHLD HLSAV MVI A,1 STA NFILFLG ;show now saving to memory for disk file CALL BUFMS2 ;show buffer is available ; TERM LDA LSTTST ;allowing the printer to be used? ORA A CNZ GOLIST ;if yes, see if anything to print CALL STAT ;keyboard have a character? JZ TERML ;if not, see if any incoming CALL KEYIN ;get character from keyboard MOV B,A ;save for now to protect 'A' reg. CPI RUB ;test for rub JNZ NOTRUB ;exit if not LDA CONVRUB ;convert rub to backspace? ORA A JZ NOTRUB ;exit if no conversion MVI B,BKSP ;call it a backspace JMP NTOG ;go send a backspace ; NOTRUB LDA FNKFLG ;get function key active flag ORA A JZ NOF ;if not set yet, exit MOV A,B ;get character CPI '0' JC NOFNK1 ;ignore invalid key codes CPI '9'+1 JNC NOFNK1 ANI 0FH ;make 0..9 JMP SNDFK ; NOF LDA INTCPT ;check intercept character CMP B JNZ NOFNK1 ;skip if no function key STA FNKFLG ;set the function flag JMP TERML ;do not send the intercept character ; NOFNK1 XRA A ;reset the flag STA FNKFLG LDA EXACFLG ORA A ;exact? MVI A,0 ;(cannot use 'XRA A' here) STA EXACFLG ;clear for next time JZ NTEXAF ;go if EXACFLG not set 'YES' LDA LOCNXT ORA A ;should we send on exacflg? JZ NTOG ;jump if LOCONEXTCHR 'NO' LDA EXTCHR ;we want to send EXTCHR in any case CMP B JZ NTOG ;send if EXTCHR JMP LOCCHK ;otherwise do local stuff ; NTEXAF LDA EXTCHR ;treat next character in special way? CMP B ;check against this control character JNZ NTEXA1 ;yes, set exacflg for next character MVI A,1 STA EXACFLG ;set the flag JMP TERM ;do not send, get next character ; NTEXA1 LDA LOCNXT ORA A ;should we send if not EXACFLG? JNZ NTOG ;jump if loconextchr 'YES' ; LOCCHK CALL XITST1 ;want to exit to menu? LDA NOCONCT ;want to disconnect from line? CMP B JZ DONETD ;if yes go disconnect LDA TRANCHR ;output text file to remote? CMP B JZ TRNSFR LDA TRANLOG ORA A JZ SKPLOG LDA LOGCHR ;send logon? CMP B JZ SNDLOG ; SKPLOG LDA LSTTST ;going to use the external printer? ORA A JZ NOLST ;if not, skip this area LDA LSTCHR ;get the printer control-character CMP B ;did we just ask for printer control? JNZ NOLST ;if not, exit LDA LISTFLG ;otherwise reset the printer toggle CMA STA LISTFLG ;and store CALL CRLF CALL CRLF CALL LSTMS ;tell if printer is on or off now CALL CRLF JMP TERML ;back to the terminal mode again ; NOLST LDA BRKCHR ;PMMI break? CMP B JZ BREAK LDA PMMIMD ;using a PMMI board? ORA A JZ NOLST1 ;if not, skip the next few lines LDA CHGBAUD ;PMMI change baud? CMP B PUSH PSW PUSH H CZ J$NWBAU POP H POP PSW JZ TERML ; NOLST1 LDA UNSAVCH ;close input buffer? CMP B JZ NOLST2 ;if yes, disable copy LDA SAVECHR ;open input buffer? CMP B JNZ NTOG LDA NFILFLG ;do not allow save if flag is set ORA A JZ TERML JMP NOLST3 ; NOLST2 XRA A ;stop copy into file ; NOLST3 STA SAVEFLG CALL BUFMS JMP TERM ;get next character ; ;*********************************************************************** ; SEND A CP/M FILE ;*********************************************************************** ; SNDFL XRA A ;set to checksum initially on send STA CRCFLAG ; initially on send CALL CKCHAR ;catch any garbage characters ; SNDFL1 LDA BCHFLG ;check if multiple file ORA A ; mode is set. JNZ SNDC1 CALL ILPRT DB 'Ready to send in batch mode',CR,LF,0 ; SNDFL2 CALL J$PRITY MVI A,YES ;indicate send for batch mode STA SNDFLG LDA FSTFLG ;if first time through ORA A ; scan the command line CZ TNMBUF ; for multiple names CALL SNDFN ;sends file name to receive PUSH PSW CALL CRLF CALL SHOFIL MVI A,' ' CALL TYPE POP PSW JNC SNDC2 ;carry set means no more files MVI A,'B' ;stop batch STA BCHFLG ;mode option MVI A,EOT ;final transfer end CALL SND JMP DONE ; SNDC1 LDA FCB+1 CPI ' ' JZ BLKFILE ; SNDC2 CALL CNREC ;get number of records CALL OPENFIL MVI E,120 ;wait 2 minutes maximum CALL WAITNAK ; SNDLP CALL CKABORT ;want to terminate while sending file? CALL RDRECD JC SNDEOF CALL INCRRNO MVI A,1 STA ERRCT ; SNDRPT CALL CKABORT ;want to terminate while sending file? CALL SNDHDR CALL SNDREC LDA CRCFLAG ORA A CZ SNDCKS CNZ SNDCRC CALL GTACK JC SNDRPT JMP SNDLP ; SNDEOF MVI A,EOT CALL SND CALL GTACK JC SNDEOF JMP DONE ; ;*********************************************************************** ; RECEIVE A CP/M FILE ;*********************************************************************** ; RCVFL LDA CRCDFLT ;get mode requested by operator STA CRCFLAG ;store it ; RCVFL1 CALL J$PRITY LDA BCHFLG ;check if multiple file mode ORA A JNZ RCVC1 ;if not, exit MVI A,NO ;flag where to return STA SNDFLG ; for next file transfer CALL GETFN ;get the file name JNC RCVC2 ;carry set means no more files MVI A,'B' ;stop batch STA BCHFLG ;mode option JMP DONE ; RCVC1 LDA FCB+1 ;make sure file is named CPI ' ' JZ BLKFILE JMP RCVC3 ; RCVC2 CALL SHOFIL ;show the file name MVI A,' ' CALL TYPE CALL SNDPRG ;get progress and wait for quiet line CALL CKCPM2 CALL CRLF CALL CKBAKUP ; RCVC3 CALL ERASF CALL MAKEFIL CALL WAITQ1 LDA BCHFLG ;do not print message if in batch mode ORA A JZ RCVFST CALL ILPRTQ DB 'File open, ready to receive',CR,LF,0 ; RCVFST LDA CRCFLAG ORA A JZ RCVNKM ;if in 'CRC' mode CALL ILPRTQ ;then say so DB 'CRC in effect',CR,LF,0 MVI A,CRC JMP RCVLP0 ; RCVNKM CALL ILPRTQ ;else say 'CHECKSUM' mode DB 'Checksum in effect',CR,LF,0 MVI A,NAK ; RCVLP0 PUSH PSW CALL ILPRT DB 'Waiting.....',0 ; NOPRG POP PSW CALL SND ; RCVLP CALL RCVRECD JC RCVEOT CALL REPORT ;show record received if not in quiet CALL WRRECD CALL INCRRNO CALL SNDACK JMP RCVLP ; RCVEOT CALL WRBLOCK CALL SNDACK CALL CLOSFIL JMP DONE ; SNDACK MVI A,ACK CALL SND RET ; ;=================== FILE TRANSFER IN T-MODE =========================== ; ; File transfer routine - called with CTL-T from terminal mode. Trans- ; fer may be cancelled while sending, by using CTL-X. ; TRNSFR LXI H,FCB4 CALL INITFCB ;initializes FCBs pointed LXI H,FCB+16 ; to by 'HL' register CALL INITFCB ; ; Get name of file to send in "T" (terminal) mode ; GET CALL ILPRT DB CR,LF,'File name to send? (CR to abort): ',0 LXI D,CMDBUF CALL INBUF LDA CMDBUF+2 ;was file entered? CPI ' ' JZ RETRN ;if not probably wanted to quit LXI D,CMDBUF LXI H,FCB4 CALL CMDLINE LXI D,FCB4 MVI C,OPEN CALL BDOS CPI 0FFH ;return with 0FFH means 'NO SUCH FILE' JZ TRANSL LDA XONWAIT ;waiting for X-on to send next line? ORA A JNZ DLYSAV ;if yes, skip additional delays ; ; Choice of normal speed or delays between characters / lines ; CALL ILPRT DB 'Want to include time delays? (Y/N): ',0 CALL KBDCHR CPI 'N' ;if 'N' send normal speed JZ DLYSAV XRA A ;otherwise use character/line delays ; DLYSAV STA DLYFLG ;store the decision CALL CRLF LXI D,CMDBUF+2 ;make sure cmdbuf has been selected MVI C,STDMA CALL BDOS ; ; Get 128-byte record ; READM LXI D,FCB4 MVI C,READ CALL BDOS ORA A ;check for a good read JZ READM1 DCR A ;check for end of file to send JZ RETRNS CALL ERXIT ;neither of those, was a read error DB '++ DISK READ ERROR ++','$' ; ; Successful read, so send the record ; READM1 CALL SND80C ;send one 128-char record CPI EOFCHAR ;end of file - omit if object JZ RETRNS ; code is to be sent. CPI CANCEL ;cancellation? JNZ READM ; RETRN CALL ILPRT DB CR,LF,LF,'(in Terminal-mode now)',CR,LF,LF,0 CALL SNDNOW ;insures last character is finished CALL CKCHAR ;catch any echo character on line JMP TERM ;finished, back to t-mode ; RETRNS CALL ILPRT DB CR,LF,'[Transfer completed]',0 JMP RETRN ; TRANSL CALL ILPRT DB CR,LF,BELL,'++ FILE NAME ERROR ++ ',CR,LF,0 JMP GET ; ; Send one 128-byes record ; SND80C MVI B,128 ;will send a maximum of 128 character LXI H,CMDBUF+2 ;they are in the cmdbuf area ; SNDCH1 PUSH D CALL SPEED ;0-90 ms. delay between characters POP D MOV A,M CPI EOFCHAR RZ CALL MDOUT ;send the character to modem CALL STAT ;test to see if ORA A ;cancellation requested JZ SKIP1 CALL KEYIN CPI CANCEL RZ ; SKIP1 INX H DCR B JNZ SNDCH1 RET ; ; Send the character to the output ; MDOUT PUSH PSW ;save the character so can use 'A' reg. CPI LF JNZ MDOUTL LDA ADDLFD ;going to send the line feed to modem? ORA A JNZ MDOUTL ;if yes, exit POP PSW ;get the char. back (a line feed) CALL TYPE ;show on CRT, do not send to modem RET ; MDOUTL LDA XOFFTST ;waiting for X-off, X-on ? ORA A CNZ TXOFF ;if yes, go check CALL SNDRDY ;wait until modem is ready to send JNZ MDOUTL POP PSW ;get the character back CALL TYPE ;send character to CRT CALL O$MDDATP ;send character to modem CPI CR ;was it an end of line? RNZ ;if yes, see if any delay is needed ; ; Delay to allow slow BBS systems (most use BASIC) to enter the line. ; Choice of 0-9 for about 100 ms. each, maximum of 900 ms. ; MDOUTN LDA XONWAIT ;wait for X-on after CR? ORA A JNZ WATXON ;if yes, handle separately MVI D,10 ; MDOUTT PUSH D CALL SPEED1 ;10 ms delay POP D DCR D JNZ MDOUTT ;10 loops for 100 ms. RET ; ; Add from 0 to 90 ms. delay between characters for slow (most use ; BASIC) bulletin board systems. Also used to add 0-900 ms. delay ; between lines. ; SPEED LDA BYTDLY ;get delay between characters (0-9) JMP SPEED1+3 ;1=10 ms, 5=50 ms, 9=90 ms, etc. ; SPEED1 LDA CRDLY ;get delay after crlf (0-9) ORA A ;100 ms, 5=500 ms, 9=900 ms, etc. RZ ;if no delay needed, return MOV C,A ;store number requested in c-reg. LDA DLYFLG ;want any delays this file? ORA A RNZ ;if not, skip this section ; SPEED2 CALL SPEED3 ;outer loop DCR C JNZ SPEED2 RET ;done whenever the c-reg. is zero ; SPEED3 PUSH H ;save current 'HL' value LXI H,20 LDA XOFFTST ORA A JZ SPEED4 LXI H,20 ;adjust for 'X-OFF' testing LDA ECHOFLG ORA A JZ SPEED4 LDA LOCFLG ORA A JZ SPEED4 LXI H,25 ;adjust for remote echo ; SPEED4 CALL FIXCNT ;multiply delay by clock speed XCHG ;transfer delay to 'DE' POP H ;restore current 'HL' from"speed3" ; SPEED5 DCX D ;inner loop LDA XOFFTST ORA A CNZ TXOFF MOV A,E ORA D JNZ SPEED5 RET ; TXOFF CALL RCVRDY RNZ CALL I$MDDATP ANI 7FH CPI XOFF CZ WATXON RET ; WATXON CALL RCVRDY ;have a character? (like x-on) JNZ WATXN1 ;if no character see if want to abort CALL I$MDDATP ANI 7FH ;strip off any parity CPI XON ;see if character was X-on RZ ;if yes, keep going ; WATXN1 CALL STAT ;test to see if requesting cancellation JZ WATXON CALL KEYIN ;can abort if the x-on never comes CPI CANCEL ;CTL-X to abort? JNZ WATXON ;if not, keep going RZ ; ;*********************************************************************** ; SUBROUTINES ;*********************************************************************** ; ; Returns with the zero flag set if retry requested. If using multi- ; file (batch) mode, then no questions asked, just quit. ; CKQIT LDA BCHFLG ;using batch mode now? ORA A JZ ABORT ;quit if using batch mode ; CKQIT1 MVI A,1 STA ERRCT CALL ILPRT DB CR,LF,'Multiple errors encountered.',CR,LF DB 'Type Q to quit, R to retry: ',BELL,0 CALL KEYIN PUSH PSW CALL CRLF POP PSW CALL UCASE ;instead of 'ANI 5FH' CPI 'R' JZ RCVRECD ;if 'R' keep trying CPI 'Q' JNZ CKQIT1 JMP ABORT ; ; Show the file name as stored in the FCB but in CP/M format ; SHOFIL LDA QFLG ;can type it if no 'QFLG' ORA A RZ LXI H,FCB+1 ; SHONM XRA A STA FTYCNT MVI C,11 ; PRNAM CALL FTYTST INX H DCR C JNZ PRNAM RET ; ; Give report of received records as they occur ; REPORT LDA QFLG ORA A RZ LHLD RECNO ;get record number INX H CALL ILPRT DB CR,'Received # ',0 CALL DECOUT ;print record number in decimal CALL ILPRT DB ' ',0 ; LDA HEXSHO ORA A RZ CALL ILPRT DB '(', 0 CALL DHXOUT ;16 bit hex conversion and output CALL ILPRT DB 'H) ',0 RET ; FTYTST LDA FTYCNT INR A STA FTYCNT CPI 9 ;are we at the file type? JZ SPCTST ;go if so ; ENDSPT MOV A,M CPI ' ' ;test for space CNZ TYPE ;type if not RET ; SPCTST MOV A,M CPI ' ' ;test for space in 1st file type byte RZ ;do not output period if space MVI A,'.' CALL TYPE JMP ENDSPT ;output 1st file type byte ; ; Get sender's progress report if it is present and wait for line to get ; quiet ; SNDPRG MVI B,5 ;wait up to 5 seconds CALL RECV CALL TYPE ;show the progress report from sender JNC SNDPRG RET ; SNDFN CALL ILPRTQ DB 'Awaiting name NAK ',CR,LF,0 CALL GTACK CC SNDACK LXI H,FILECT DCR M JM NOMRN LHLD NBSAVE ;get file name in FCB LXI D,FCB MVI B,12 CALL MOVE SHLD NBSAVE CALL SNDNM ;send it ORA A ;clear carry RET ; NOMRN MVI A,EOT CALL SND STC RET ; ; Wait for line to get quiet and gobble characters ; WAITQ1 MVI B,1 CALL RECV JNC WAITQ1 RET ; SNDNM PUSH H ; SNDNM1 MVI D,11 ;count characters in name MVI C,0 ;initialize checksum LXI H,FCB+1 ;address name ; NAMLPS MOV A,M ;send name ANI 7FH ;strip high order bit so CP/M 2.x CALL SND ; will not send R/O file designation ; ACKLP PUSH B ;save checksum MVI B,5 ;wait for receiver to acknowledge CALL RECV ; getting the letter POP B JC SCKSER CPI ACK JNZ ACKLP INX H ;next character DCR D JNZ NAMLPS MVI A,EOFCHAR ;tell receiver the end of name CALL SND MOV D,C ;save checksum ; CKSMLP MVI B,5 ;wait up to 5 seconds CALL RECV ;get checksum CMP D JNZ SCKSER ;exit if bad name MVI A,OKNMCH ;good name-tell receiver CALL SND POP H RET ; SCKSER MVI A,BDNMCH ;bad name-tell receiver CALL SND CALL ILPRT DB CR,LF,'++ ERROR sending name ++',CR,LF,0 MVI E,120 ;do handshaking over (2 minutes maximum) CALL WAITNLP ;don't print "WAITING READY SIGNAL" msg. CALL SNDACK JMP SNDNM1 ; ; This patch fixes a problem with the display of the function key ; group on the menu. It uses some of the extra bytes available in ; this area from the CKSMLP fix. ; FIXFNK STA MENU3+1 ;store the character in the menu display CPI '[' ;'ESC' character, printed JNC INTER2 ;if 'ESC' or more, exit JMP INTER1 ;otherwise include a '^' ; ; Patch to close FCB3 instead of FCB when in disk-capture mode. ; WRERRSP CALL WRFIL2 ;close FCB3 file JMP WRERR1 ;go write 'DISK FULL' message and quit ; EXTRA DB '123456789 ' ;10 extras from CKSMLP (there were 27) ; GETFN LXI H,FCB CALL INITFCB+2 ;does not initialize drive CALL ILPRTQ DB 'Awaiting file name',CR,LF,0 CALL HSNAK CALL GETNM ;get the name CPI EOT ;if EOT, then no more files JZ NOMRNG ORA A ;clear carry RET ; NOMRNG STC RET ; GETNM PUSH H ; GETNM1 MVI A,0FFH STA FLTRFLG MVI C,0 ;initialize checksum LXI H,FCB+1 ; NAMELPG MVI B,5 CALL RECV ;get the character PUSH B PUSH PSW MVI A,0FFH STA TIMFLG MVI B,1 CALL RECV XRA A STA TIMFLG POP PSW POP B JNC GETNM3 CALL ILPRTQ DB 'Time out receiving filename',CR,LF,0 JMP GCKSER ; GETNM3 CPI EOT ;if EOT, then no more files JZ GNRET CPI EOFCHAR ;got end of name JZ ENDNAM PUSH PSW PUSH B CALL SNDACK POP B POP PSW MOV M,A ;put name in FCB INX H ;get next character MOV A,L ;do not let noise cause overflow CPI 7FH ; into the program area JZ GCKSER JMP NAMELPG ; ENDNAM XRA A STA FLTRFLG MOV A,C ;send checksum MOV D,C CALL SND ; NMLP1 MVI B,5 ;wait up to 5 seconds to see if CALL RECV ; the checksum is good CPI OKNMCH ;yes if 'OKNMCH' sent JZ GNRET CMP D JZ NMLP1 ;in case it is echo of send CPI CR JZ NMLP1 CPI LF JZ NMLP1 ; GCKSER LXI H,FCB ;clear FCB (except drive) since it CALL INITFCB+2 ; might be damaged CALL ILPRTQ DB CR,LF,'** Checksum error **',CR,LF,0 XRA A STA FLTRFLG CALL HSNAK ;do handshaking over JMP GETNM1 ; GNRET PUSH PSW XRA A STA FLTRFLG POP PSW POP H RET ; HSNAK MVI E,180 ;3 minute wait for file name XRA A STA FLTRFLG ; HSNAK1 CALL CKABORT ;want to abort? MVI A,NAK ;send 'NAK' until receiving 'ACK' CALL SND MVI B,1 ;wait up to 1 second for a character CALL RECV CPI ACK ;'ACK' is what we were waiting for RZ DCR E JNZ HSNAK1 JMP ABORT ;back to command line ; TNMBUF MVI A,1 ;call from 'SNDFL' only once STA FSTFLG XRA A STA FILECT CALL SCAN LXI H,NAMEBUF SHLD NBSAVE ;save address of 1st name ; TNLP1 CALL TRTOBUF LXI H,FCB LXI D,FCBBUF CALL CMDLINE ;parse name to CP/M format ; TNLP2 CALL MFNAM ;search for names (wildcard format) JC NEXTNM LDA FCB+10 ;if CP/M 2.x SYS file ANI 80H ; do not send JNZ TNLP2 LHLD NBSAVE ;get name LXI D,FCB ;move it to FCB XCHG MVI B,12 CALL MOVE XCHG SHLD NBSAVE ;address of next name LXI H,FILECT ;count files found INR M JMP TNLP2 ; NEXTNM LXI H,NAMECT ;count names found DCR M JNZ TNLP1 LXI H,NAMEBUF ;save start of buffer SHLD NBSAVE LDA FILECT CPI 64+1 ;no more than 64 transfers RC MVI A,64 ;only transfer first 64 STA FILECT RET ; ; Tells when buffer is opened/closed for memory save to write on disk ; BUFMS CALL ILPRT DB CR,LF,'** Memory buffer ',0 LDA SAVEFLG ORA A JZ BUFMS1 CALL ILPRT DB 'open **',CR,LF,LF,';',0 RET ; BUFMS1 CALL ILPRT DB 'closed **',CR,LF,LF,0 RET ; BUFMS2 CALL ILPRT DB CR,LF,'** Memory buffer available **',CR,LF,0 RET ; ; Clear the screen and return to the menu command ; XITMNU CALL CRLF CALL CLREOS ;clear line to clean up any mess JMP MENU0 ; ; Checks to see if the modem has a character ready ; RCVRDY CALL I$MDCTL1 CALL A$MDRCVB JMP C$MDRCVR ; ; Checks to see if the modem is ready to receive a character ; SNDRDY CALL I$MDCTL1 CALL A$MDSNDB JMP C$MDSNDR ; SNDNOW CALL XITST ;see if want to quit now CALL SNDRDY ;ready to send a character? JNZ SNDNOW ;if not ready wait some more RET ;exit if ready ; ; Send the log-on message when requested ; SNDLOG LHLD LOGONPTR ;'HL' points to start of logon message CALL LOGLP JMP TERML ; LOGLP CALL SNDNOW ;wait until modem is ready MOV A,M ;get logon byte ORA A ;last character in string is '0' RZ ;return if finished CALL O$MDDATP ;otherwise send the character CALL LOGLP1 ;check for echo character and display it INX H ;next location in message JMP LOGLP ;get next character ; LOGLP1 CALL J$INMDM ;get the echo character CC J$INMDM ;if none, try once more RC ;if no character do not try to print ANI 7FH ;strip off any parity JMP TYPE ;display the character, then return ; ; Check for exit character ; XITST CALL STAT ;anything on keyboard? RZ CALL KEYIN ;get it, then MOV B,A ;save to protect the 'A' register ; XITST1 MVI A,EXITCHR ;exit character CMP B ;asking to exit to menu? RNZ ;if not, back to work POP H ;clear the stack from 'CALL' JMP XITMNU ;exit to the menu ; LSTMS CALL ILPRT DB 'Printer buffer is ',0 LDA LISTFLG ;see if printer should be on or off ORA A JZ LSTMS1 CALL ILPRT DB 'ON',CR,LF,0 RET ; LSTMS1 CALL ILPRT DB 'OFF',CR,LF,0 RET ; ; Special function key handler. This routine is entered with the ; function key number (0..9) in A. The corresponding function key is ; then transmitted. ; SNDFK PUSH H ;save register LXI H,FNCTBL ;point to function key codes ; SFK1 CMP M ;this the one? INX H ;point to next byte JNZ SFK1 ;loop until found CALL LOGLP ;send the char POP H XRA A ;reset the function flag STA FNKFLG JMP TERML ; ; Send keyboard character to modem, also to console if "E" or "L". If ; "E" include a LF after a CR, if either, include a LF if toggle is set. ; NTOG CALL SNDCHR ;send char. in 'B' to modem LDA LOCFLG ;using the local mode? ORA A JNZ LTYPE ;if yes, show the character LDA ECHOFLG ;in echo mode? ORA A JZ TERML ;if not, see if it was a 'CR' ; LTYPE MOV A,B ;get the character back CALL TYPE ;show on the local CRT CALL CKSAV ;to store local if buffer open CALL CHKPRNT ;put on printer if running ; CHKCR MVI A,CR CMP B JNZ TERML ;if not CR, all done LDA ECHOFLG ;in echo mode now? ORA A JNZ CHKLF ;if yes add a line feed LDA ADDLFD ;going to add a line feed in 'L' mode? ORA A JZ TERM ;if not, exit ; CHKLF MVI B,LF JMP NTOG ;send locally and to remote ; TERML CALL RCVRDY ;character on the receive-ready line? JNZ TERM ;if not, exit CALL I$MDDATP ;get the character ANI 7FH ;strip parity JZ TERM ;do not bother with nulls CPI RUB JZ TERM ;do not bother with rubouts for fill MOV B,A ;store temporarily LDA IGNRCTL ;ignoring all but necessary CTL-chars? ORA A JZ GIVLF ;if zero, display them all MOV A,B CPI ' ' JNC GIVLF ;display all printing characters CPI 'G'-40H ;^G for bell JC TERM ;ignore CTL-characters less than ^G CPI CR+1 JNC TERM ;ignore CTL-characters more than ^M ; GIVLF MOV A,B ;get the character back CALL TYPE ;show it on the CRT CALL CKSAV ;saving for disk file? CALL CHKPRNT ;printer running? LDA ECHOFLG ;going to echo the character? ORA A JZ NOECH ;if not, do not resend ; GIVLF1 CALL SNDCHR ;send character in 'B' to modem ; NOECH MVI A,CR CMP B ;was it a 'CR' just now? JNZ TERM ;if not, all done so exit LDA ECHOFLG ;in the echo mode? ORA A JZ TERM CALL SNDNOW ;modem ready for a character? MVI B,LF JMP GIVLF ;send LF ; ; See if putting character into memory for a disk file ; CKSAV LDA SAVEFLG ;saving to disk? ORA A RZ ;if not, exit LHLD HLSAV ;get last address MOV M,B ;store this character INX H ;increment for next character SHLD HLSAV ;remember that location MVI A,LF CMP B ;this character a line feed? JNZ CKSAV1 ; type ";" after each line feed MVI A,CR ;insure at left column with a LF CALL TYPE CALL TYPSEM ;show a ';' on CRT ; CKSAV1 MOV A,H LXI H,BUFTOP ;get the address at top of buffer CMP H CZ DCTLS ;if different, buffer is not full RET ; ; Memory buffer is full, send a X-OFF (CTL-S, DC3), save any extra in- ; coming characters, then dump to disk, reset buffer to include those ; characters. ; DCTLS CALL SNDNOW ;modem ready for a character? MVI A,XOFF ;send a CTL-S to stop remote computer CALL O$MDDATP CALL CHKPRNT ;insure character gets to the printer LXI H,BUFFDSK ;address of auxiliary buffer CALL GTDSK ;put any extra chars. into aux. buffer PUSH D ;save the number of aux. chars. MVI A,1 ;show we put something in the buffer STA WRFLG ; to protect erasing an empty file LHLD HLSAV ;find current end of buffer CALL WRDSK1 ;write the records POP D ;get auxiliary character count back LXI H,BUFFER ;start again at bottom of buffer XRA A ;set 'A' to zero CMP D ;see if any count in 'D' JZ DCTLQ ;if nothing, exit and continue LXI B,BUFFDSK ;address of auxiliary buffer ; ; Move the characters from the auxiliary buffer to the main buffer and ; display ; DCTLS1 LDAX B ;get the character there MOV M,A ;store in main buffer CALL TYPE ;show on CRT PUSH H PUSH D PUSH B PUSH PSW MOV B,A CALL CHKPRNT POP PSW ;get the character again POP B POP D POP H CPI LF CZ TYPSEM INX H ;next buffer position INX B ;next auxiliary buffer position DCR D ;one less to go JNZ DCTLS1 ;if not zero, keep going MVI B,0 ;falls through to 'CHKPRNT' next ; DCTLQ SHLD HLSAV ;next position to store in buffer CALL SNDNOW MVI A,XON ;allow remote input to continue JMP O$MDDATP ; ; Gets any incoming characters after sending an XOFF and stores at HL. ; Returns with number of characters stored in D-reg. ; GTDSK MVI D,0 ;character count in buffer MVI E,128 ;maximum for buffer length ; GTDSK1 CALL J$INMDM ;get any character RC ;if none, finished CPI ' ' JNC GTDSK2 ;if greater, handle normally CPI CR+1 ;ignore CTL-characters > CR JNC GTDSK1 ; GTDSK2 MOV M,A ;store INX H ;next buffer location to use INR D ;increment character count DCR E ;room for one less JNZ GTDSK1 ;if room in buffer, keep going RET ;if buffer is filled, exit ; ; See if printing the character, if yes, put into buffer ; CHKPRNT LDA LISTFLG ;printer in use? ORA A RZ ;return if not LHLD HLSAV1 ;get input address MOV M,B ;save this character there INX H ;increment the buffer location SHLD HLSAV1 ;store for next character LDA MAXRAM ;see if at top of buffer yet CMP H CZ PCTLS ;if different, buffer is not full RET ; ; Memory buffer is full, send a X-OFF (CTL-S, DC3), save any extra in- ; coming characters, then dump to disk, reset buffer to include those ; characters. ; PCTLS CALL SNDNOW ;wait until modem is ready MVI A,XOFF ;send a CTL-S to stop remote computer CALL O$MDDATP LXI H,BUFFPNT ;address of auxiliary buffer CALL GTDSK ;put any extra chars. into aux. buffer MOV A,D ;get the aux. buffer character count STA DSTORE ;save for later RET ; ; Output has now caught up to the input and both are at top of buffer ; PCTLS1 LDA DSTORE ;get the aux. buffer character count MOV D,A ;put into 'D' register XRA A ;set 'A' to zero CMP D ;see if any count in 'D' LXI H,PBUFF ;address at start of printer buffer JZ PCTLQ ;if nothing, exit and continue LXI B,BUFFPNT ;address of auxiliary buffer ; ; Move the characters from the aux. buffer to the main buffer and display ; PCTLS2 LDAX B ;get the character there MOV M,A ;store in main buffer CALL TYPE ;show on CRT PUSH H PUSH D PUSH B PUSH PSW MOV B,A CALL CKSAV POP PSW POP B POP D POP H CPI LF CZ TYPSEM INX H ;next buffer position INX B ;next auxiliary buffer position DCR D ;one less to go JNZ PCTLS2 ;if not zero, keep going ; PCTLQ SHLD HLSAV1 ;next position to store in buffer LXI H,PBUFF ;start of buffer location SHLD HLSAV2 ;output to start of buffer CALL SNDNOW ;wait until modem is ready MVI A,XON ;send start character JMP O$MDDATP ; to remote computer, back to work ; ; List the character on the printer if it is ready, then see if at the ; top of the buffer. ; GOLIST CALL $-$ ;get the printer status - filled in ORA A ;by 'INITAD' routine RZ ;return if printer not ready ; ; Compare input and output pointers. If at same address, nothing to ; print. ; CALL CMP$I$O ;if the same, nothing to print RZ ; ; If not the same, print the character ; GOLIST1 PUSH H ;save current buffer address MOV E,M ;get the character to display MVI C,LIST ;list routine CALL BDOS POP H ;restore current buffer address INX H ;increment pointer for next position SHLD HLSAV2 ;store for next time through here ; ; See if the output is at the end of the buffer now. If yes, go put ; the auxiliary characters into the start of the buffer. ; LDA MAXRAM ;check for end of buffer area CMP H JZ PCTLS1 ;if at end, restore auxiliary buffer ; ; See if the output has caught up with the input - if so, reset the ; pointers to the start of the buffer ; CALL CMP$I$O RNZ ;if not, back to work LXI H,PBUFF ;if output caught input, reset both SHLD HLSAV1 ; to bottom of buffer to start over SHLD HLSAV2 RET ; ; Compare the input and output pointers to see if the same address ; CMP$I$O LHLD HLSAV1 ;get input pointer address XCHG ;put in 'DE' LHLD HLSAV2 ;get output pointer address MOV A,H CMP D RNZ ;return if different MOV A,L CMP E RET ; GTMAX LDA SAVCCP ;going to save 'CCP'? ORA A LDA BDOS+2 ;'MSP' of 'BDOS' address JZ GTMAX1 SBI 8 ;'CCP' is 2k or 8 pages ; GTMAX1 STA MAXRAM ;save RET ; ; This subroutine will loop until the modem receives a character or 100 ; milliseconds. It returns with a character in 'A' reg. but if no char- ; acter was recieved it returns after a timeout with carry set. ; INMDM PUSH H LXI H,63 ;about 100 milliseconds CALL FIXCNT MOV B,H ;delay is in 'HL' MOV C,L ;transfer to 'BC' POP H ;get original value of 'HL' back ; INMDM1 CALL RCVRDY ;see if there is a character ready JNZ INMDM2 ;if no character, exit CALL I$MDDATP ;get the character ANI 7FH ;strip off any parity RET ;return with character in 'A' reg. ; INMDM2 DCX B ;otherwise keep timing MOV A,B ORA C JNZ INMDM1 ;loop until timeout if needed STC ;shows a timeout occured RET ; ; Send a space tone to the phone line for a short time. ; BREAK LDA PMMIMD ;using the PMMI modem? ORA A JZ BREAK1 ;if not, exit LDA MDCTLB ;get the last modem control byte ANI BRKMASK ;set the transmit break bit low CALL O$MDCTL2 ;send it to the modem MVI B,2 CALL TIMER ;send a space tone for 200 ms. LDA MDCTLB ;get the last modem control byte CALL O$MDCTL2 ;restore to normal JMP TERM ;back to work ; BREAK1 CALL J$BREAK ;get the user's break routine JMP TERM ;back to work ; ;======================================================================= ; WRITE BUFFER TO DISK ; ; Make sure this record is included in the count. ; WRDSK LHLD HLSAV MVI M,EOFCHAR ;ASCII file, store end-of-file char. LXI D,127 DAD D ; WRDSK1 LXI D,-(BUFFER) ;subtract the start of the buffer DAD D ;by adding a minus number to buffer end MOV A,L ;divide hl by 128 ORA A RAL ; to get the MOV L,H ; number of records MVI H,0 PUSH PSW DAD H POP PSW MVI A,0 ADC L MOV L,A ;number of records in 'HL' ; ; See if buffer is empty. If yes, see if we need to erase an empty ; file or have already written something. ; LXI D,BUFFER LDAX D CPI EOFCHAR ;'EOF' in first address means JNZ WRDSK2 ; nothing in buffer to write LDA WRFLG ;first time by this way? ORA A JZ NOWRITE ;if yes, show erasing file RET ;otherwise go close file ; ; Write to disk. Start from BUFFER (in 'DE'). Number of records to ; write in 'HL'. ; WRDSK2 MVI C,STDMA CALL BDOSRT PUSH D MVI C,WRITE LXI D,FCB3 ;location of filename to write to CALL BDOSRT POP D ORA A JNZ WRERRSP ;error if disk is full ** special patch XCHG ;put the current address in 'HL' PUSH D ; and number of records left in LXI D,128 ; for now DAD D ;add for next record write, now in 'HL' POP D ;restore number of records left XCHG ;records to 'HL' again, address to 'DE' DCX H ;one less record left MOV A,H ORA L ;done writing when 'H' and 'H' both zero JNZ WRDSK2 ;otherwise do another disk write RET ; ; Error while writing a record, show why it is aborting ; WRERR MVI C,CANCEL ;send cancel char. to sending station CALL SND CALL CLOSFIL ;close the current file ; WRERR1 CALL ERXIT ;also will reset stack DB '++ DISK FULL, SAVING PARTIAL FILE ++','$' ; ; If no data to store on the disk, close the empty file and erase it ; NOWRITE CALL WRFIL2 ;close the empty file CALL NOASK ;erase the empty file CALL ILPRT DB '++ Nothing to save, erasing file ++' DB CR,LF,BELL,0 JMP DONETA ;reset any flags, return to menu ; ; Show you are in memory-save for disk write ; TYPSEM MVI A,';' JMP TYPE ;show on CRT, return ; ; Save the registers, call BDOS then restore the registers ; BDOSRT PUSH B PUSH D PUSH H CALL BDOS POP H POP D POP B RET ; INITFCB MVI M,0 ;entry at +2 will leave drive # intact INX H ;will initialize an FCB MVI B,11 ;pointed to by HL-reg. fills 1st pos. ; LOOP11 MVI M,' ' ; with 0, next 11 with INX H ; with blanks, and last DCR B ; 21 with nulls JNZ LOOP11 MVI B,21 ; LOOP21 MVI M,0 INX H DCR B JNZ LOOP21 RET ; ; Scans CMDBUF counting names and putting delimiter (space) after last ; name. ; SCAN PUSH H LXI H,NAMECT MVI M,0 LXI H,CMDBUF+1 ;find end of command line, add space MOV C,M MVI B,0 LXI H,CMDBUF+2 DAD B MVI M,' ' LXI H,CMDBUF+1 MOV B,M INR B INR B ; SCANL1 INX H DCR B JZ DNSCAN MOV A,M CPI ' ' JNZ SCANL1 ; SCANL2 INX H ;eat extra spaces DCR B JZ DNSCAN MOV A,M CPI ' ' JZ SCANL2 SHLD BGNMS ;save start of names in CMDBUF INR B DCX H ; SCANL3 INX H DCR B JZ DNSCAN MOV A,M CPI ' ' JNZ SCANL3 LDA NAMECT ;counts names INR A STA NAMECT ; SCANL4 INX H ;eat spaces DCR B JZ DNSCAN MOV A,M CPI ' ' JZ SCANL4 JMP SCANL3 ; DNSCAN MVI M,' ' ;space after last character POP H RET ; ; Places next name in buffer so 'CMDLINE' may parse it ; TRTOBUF LHLD BGNMS MVI B,0 LXI D,FCBBUF+2 ; TBLP MOV A,M CPI ' ' JZ TRBFEND STAX D INX H INX D INR B ;count characterss in name JMP TBLP ; TRBFEND INX H MOV A,M ;eat extra spaces CPI ' ' JZ TRBFEND SHLD BGNMS LXI H,FCBBUF+1 ;put # chars before name MOV M,B RET ; CKCPM2 MVI C,CPMVER ;BDOS 12 -- version number -- cp/m 2.x? CALL BDOS ORA A RZ MVI C,STDMA LXI D,TBUF CALL BDOS MVI C,SRCHF LXI D,FCB CALL BDOS CPI 0FFH RZ ; CALL GETADD LXI D,9 DAD D ;point to R/O attribute byte MOV A,M ANI 80H ;test most significant byte JNZ MKCHG ;if set, make change INX H ;check system attribute byte MOV A,M ANI 80H RZ ;not SYS or R/O attribute DCX H ; MKCHG LXI D,-8 DAD D ;point HL to filename + 1 LXI D,FCB+1 ;move directory name to FCB MVI B,11 ; without changing drive CALL MOVE LXI H,FCB+9 ;R/O attribute MOV A,M ANI 7FH ;strip R/O attribute MOV M,A INX H ;system attribute MOV A,M ANI 7FH MOV M,A LXI D,FCB MVI C,30 ;set new attributes in directory CALL BDOS ; ; Called by 'CKBAKUP' below, return done here through 'BDOS' jump ; PLANCHG LXI H,FCB ;change name to type "BAK" LXI D,FCB2 MVI B,9 ;move drive and name (not type) CALL MOVE LXI H,75H ;start of type in FCB2 MVI M,'B' INX H MVI M,'A' INX H MVI M,'K' LXI D,FCB2 MVI C,ERASE ;erase any previous backups CALL BDOS LXI H,FCB2 ;FCB2 drive field should have MVI M,0 LXI D,FCB MVI C,23 ;rename JMP BDOS ; CKBAKUP LDA BACKUP ORA A RZ MVI C,SRCHF LXI D,FCB CALL BDOS INR A RZ ;file not found JMP PLANCHG ;in 'CKCPM2' - return done there ; ;*********************************************************************** ; RECEIVE A RECORD FROM SENDING STATION ;*********************************************************************** ; ; If CRC is in effect, there is a 10-second timeout to the first SOH. ; It then tries six more times to let the sender know the system is ; capable of receiving a 'CRC' check. At the end of that time a NAK is ; sent which tells the sender to use CHECKSUM checking instead of CRC. ; This allows automatic compatability with systems implementing CRC - ; (Cyclic Redundancy Checking). The search for SOH will cycle through ; one record interval and ignore noise or characters sent by the remote ; for any purpose (such as progress reporting). So extraneous characters ; that are sometimes sent by remote-end protocol will be gobbled up until ; the first SOH. EOT is tested only as the first returned character af- ; ter each sector. ; SRCHSOH EQU 160 ;number of times to loop search for SOH ; RCVRECD MVI A,1 STA ERRCT ;initialize the error count ; RCVSQ MVI B,10 ;10 seconds allowed to receive 1st char. LXI D,SRCHSOH ;initialize loop for up to 160 seconds CALL RECV ;get the 1st character JC RCVSTOT ;timeout error if not rcvd in 10 seconds MOV C,A ;save the character for now CPI EOT ;see if end of transmission STC ;set carry RZ ;return with carry set ; SOHLUP MVI A,0FFH STA CHRFLG STA TIMFLG MOV A,E ;get search count-down value CPI SRCHSOH ;see if it is the 1st returned character MOV A,C ;get the first character now JZ NORECV ;skip RECV routine if 1st character MVI B,1 CALL RECV MOV B,A JNC TSTSOH ; NORECV MOV B,A XRA A ;else set the value that forces timeout STA CHRFLG ; TSTSOH MOV A,B ;get the character CPI SOH ;see if it is SOH PUSH PSW XRA A STA TIMFLG ;restore this flag POP PSW JZ RCVSOH ;got SOH, get rcd # and its complement MOV A,D ORA E ;see if counted-down to zero DCX D JNZ SOHLUP ;go around again if not LDA CHRFLG ;see if timeout needs to be forced ORA A JZ RCVSTOT ;go do timeout and count them LDA QFLG ORA A JZ RCVSRR ; RCVSH CALL CRLF MOV A,B CALL HEXO CALL ILPRT DB 'H received not SOH - ',0 ; RCVPRN CALL SHOERR ;display error count ; RCVSRR CALL WAITQ1 ;wait for 1 second with no characters CALL CKABORT ;want to stop receiving now? LDA CRCFLAG ;get 'CRC' flag ORA A ;'CRC' in effect? MVI A,NAK ;put 'NAK' in 'A' register JZ RCVSR1 ;no, send the 'NAK' LDA FIRSTME ;get first time switch ORA A ;has first 'SOH' been received? MVI A,NAK ;put 'NAK' in 'A' register JNZ RCVSR1 ;yes, then send 'NAK' MVI A,CRC ;tell sender 'CRC' is in effect ; RCVSR1 CALL SND ; the 'NAK' or 'CRC' request LDA ERRCT ;abort if we have reached error limit INR A STA ERRCT ;store for next time CPI ERRLIM ;see if at limit yet JC RCVSQ ;if not, keep going LDA RETRY ;see if retry after 10 errors is set ORA A JZ ABORT ;if 'YES', abort JMP CKQIT ;if 'NO' check for continued use ; RCVSABT LXI SP,STACK ;reset the stack just in case CALL CLOSFIL ;close the partial file CALL NOASK ;delete partial file CALL ILPRT DB CR,LF,LF DB '++ RECEIVED FILE CANCELLED ++',CR,LF,BELL DB '++ UNFINISHED FILE DELETED ++',CR,LF,0 JMP DONETA ; RCVSTOT LDA QFLG ORA A JZ RCVSCC ; RCVSPT CALL ILPRT DB CR,LF,'++ Timeout ',0 CALL SHOERR ; RCVSCC CALL RCVSCC2 JMP RCVSRR ; ; Routine will switch from 'CRC' to Checksum if 'ERCNT' reaches 'ERRCRC' ; and 'FIRSTIME' is false. ; RCVSCC2 LDA ERRCT CPI ERRCRC RNZ LDA FIRSTME ORA A RNZ LDA CRCFLAG ORA A RZ CMA STA CRCFLAG STA CRCDFLT CALL ILPRTQ DB '** Switching to Checksum mode **',CR,BELL,LF,0 RET ; ; Got SOH - get block #, block # complemented ; RCVSOH MVI A,0FFH STA FIRSTME ;indicate 1st soh was received MVI B,5 ;timeout = 5 seconds CALL RECV ;get record JC RCVSTOT ;got timeout MOV D,A MVI B,5 ;timeout = 5 seconds CALL RECV JC RCVSTOT CMA CMP D JZ RCVDATA LDA QFLG ORA A JZ RCVSRR ; RCVBSE CALL ILPRT DB CR,LF,'++ Bad record # in header ',0 JMP RCVPRN ; RCVDATA MOV A,D STA RCVRNO MVI A,1 STA DATAFLG MVI C,0 LXI H,0 SHLD CRCVAL LXI H,80H ; RCVCHR MVI B,5 ;wait up to 5 seconds for a character CALL RECV JC RCVSTOT MOV M,A INR L JNZ RCVCHR XRA A STA DATAFLG LDA CRCFLAG ORA A JNZ RCVCR MOV D,C MVI B,5 ;wait up to 5 seconds for an answer CALL RECV JC RCVSTOT CMP D JNZ RCVCERR ; CHKSNUM LDA RCVRNO MOV B,A LDA RECNO CMP B JZ RCVACK INR A CMP B JNZ ABORT RET ; RCVCR MVI E,2 ;number of 'CRC' bytes ; RCVCR2 MVI B,5 ;wait up to 5 seconds for a character CALL RECV JC RCVSTOT DCR E JNZ RCVCR2 CALL CRCCHK ORA A JZ CHKSNUM LDA QFLG ORA A JZ RCVSRR ; RCVCRER CALL ILPRT DB '++ CRC error ',0 JMP RCVPRN ; RCVCERR LDA QFLG ORA A JZ RCVSRR ; RCVCPR CALL ILPRT DB '++ CHECKSUM error ',0 JMP RCVPRN ; RCVACK CALL SNDACK JMP RCVRECD ; ; Get the error count and display on CRT ; SHOERR PUSH H LHLD ERRCT MVI H,0 CALL DECOUT POP H CALL ILPRT DB ' ++',CR,LF,0 LDA ERRCT CPI ERRLIM JNC ABORT RET ; SNDHDR LDA QFLG ORA A JZ SNDHNM CALL ILPRT DB CR,'Sending # ',0 PUSH H ;store current address LHLD RECNO ;get record number CALL DECOUT ;print it in decimal CALL ILPRT DB ' ',0 ; LDA HEXSHO ORA A JZ SNDHNM-1 CALL ILPRT DB '(',0 CALL DHXOUT ;16 bit hex conversion & output CALL ILPRT DB 'H) ',0 ; POP H ;restore current address ; SNDHNM MVI A,SOH ;send 'SOH' character to the output CALL SND LDA RECNO ;send record number to the output CALL SND LDA RECNO CMA ;complement the record number JMP SND ;send this value to the output ; SNDREC MVI A,1 STA DATAFLG MVI C,0 LXI H,0 ;new record, clear 'CHECKSUM' value SHLD CRCVAL ;new record, clear 'CRC' value LXI H,TBUF ;store at 0080H ; SNDC MOV A,M CALL SND INR L JNZ SNDC XRA A STA DATAFLG RET ; SNDCKS MOV A,C JMP SND ; SNDCRC PUSH H LHLD CRCVAL MOV A,H CALL SND MOV A,L CALL SND POP H XRA A ;reset the carry bit RET ; ; After a record is sent, a character is returned telling if it was re- ; ceived properly or not. An ACK allows the next record to be sent. A ; NAK causes the current record to be resent. If no character (or any ; character other than ACK or NAK) is received after a short wait (10 ; to 12 seconds), a timeout error message is shown and the record will ; be resent. The GTACK routine can gobble up a string of up to 191 ; characters while searching for an 'ACK' or a 'NAK'. ; GTACK MVI E,192 ;number of characters to gobble ; ACKLUP MVI A,0FFH STA CHRFLG ;set the character flag STA TIMFLG ;set the time flag MVI B,1 CALL RECV MOV B,A ;save the character JNC ACKTST XRA A STA CHRFLG ;reset the character flag, was none ; ACKTST XRA A STA TIMFLG MOV A,B ;get the character back CPI ACK RZ CPI NAK JZ GTACK1 ; NOAKNK DCR E ;one less to go JNZ ACKLUP ;loop around again if not zero LDA CHRFLG ORA A JZ GETATOT ; GTACK1 LDA BENHERE XRA B JZ ACKER0 ;do not say 'ACK error' if 1st 'NAK' LDA QFLG ORA A JZ ACKER CALL ILPRT DB '++ ',0 MOV A,B CPI NAK JZ GTACK3 CALL HEXO CALL ILPRT DB 'H',0 JMP GTACK4 ; GTACK3 CALL ILPRT DB 'NAK',0 ; GTACK4 CALL ILPRT DB ' received not ACK - ',0 CALL SHOERR ; ACKER0 XRA A STA BENHERE ; ACKER LDA ERRCT INR A STA ERRCT CPI ERRLIM+1 ;at error limit yet? RC ;if not, return ; ACKER1 CALL ERXIT DB CR,LF,'++ SEND-FILE CANCELLED ++','$' ; ; Reached error limit ; GETATOT CALL ILPRT DB CR,'++ TIMEOUT - no ACK - ',0 CALL SHOERR ;display error count JMP ACKER ; CKABORT LDA QFLG ORA A RZ CALL STAT RZ CALL KEYIN CPI CANCEL RNZ ; ; Aborts send or receive routines and returns to command line ; ABORT LXI SP,STACK ; ABORTL MVI B,1 ;1-second delay to clear input CALL RECV JNC ABORTL MVI A,CANCEL ;show you are cancelling CALL SND ; ABORTW MVI B,1 ;1-second delay to clear input CALL RECV JNC ABORTW MVI A,' ' CALL SND MVI A,'B' ;turn multi-file mode STA BCHFLG ; off so routine ends STA ABTFLG ;shows an abort was made XRA A STA NFILFLG ;stop copy into memory for disk file LDA OPTION ;receiving a file now? CPI 'R' JZ RCVSABT ;if yes, cancel the unfinished file CALL ILPRT DB CR,LF,LF,'++ FILE CANCELLED ++',CR,LF,BELL,0 JMP DONETA ; ; Increment the record count ; INCRRNO PUSH H LHLD RECNO ;get record number INX H ;bump it SHLD RECNO ;store it MOV A,L POP H RET ; ; First check for any wild cards and disallow, just to be safe. Do not ; want a group of files being accidently erased. ; ERASF LXI H,FCB ;file name is stored here MVI B,11 ;maximum of 11 chars for filename.ext ; ERASF1 INX H ;next location in file name MOV A,M ;get the char. CPI '?' ;check for any wild card characters JZ ERRORW ;error if one is found DCR B ;number of tries left JNZ ERASF1 ;if not zero, keep checking LDA BCHFLG ;do not ask for erase ORA A ; in multi-file mode, JZ NOASK ; just do it LXI D,FCB MVI C,SRCHF CALL BDOS INR A RZ ;file erased ok, return CALL ILPRT ;otherwise make sure it is ok DB 'File exists - erase? (Y/N): ',BELL,0 CALL KBDCHR CPI 'Y' JNZ MENU ;if not a 'Y' do not erase CALL CRLF ;otherwise erase the file ; NOASK LXI D,FCB MVI C,ERASE JMP BDOS ; ERRORW POP H ;restore stack from "call ERASF" CALL ILPRT DB '++ NO WILDCARDS ALLOWED FOR TEXT FILES ++' DB CR,LF,BELL,0 JMP MENU ; BLKFILE CALL ILPRT ;no file named for send or receive DB '++ NO FILE SPECIFIED ++',CR,LF,BELL,0 JMP MENU ; MAKEFIL LXI D,FCB MVI C,MAKE CALL BDOS INR A RNZ CALL ERXIT DB '++ ERROR -- Can''t open file ++',CR,LF DB '++ Directory is perhaps full ++','$' ; CNREC MVI C,FILSIZ ;compute file size function in CP/M 2.x LXI D,FCB ;point to file control block CALL BDOS LHLD FCB+33 ;get record count SHLD RCNT ;store it LXI H,0 ;zero 'HL' SHLD FCB+33 ;reset random record in FCB RET ; OPENFIL XRA A STA FCBEXT LXI D,FCB MVI C,OPEN CALL BDOS INR A JNZ SNDTM ;send transfer time, # of records, etc. CALL ERXIT ;file did not open DB '++ FILE NOT FOUND ++','$' ; CLOSFIL LXI D,FCB ;get the file name MVI C,CLOSE CALL BDOS ;close the file INR A RNZ JMP ERXIT1 ;no file to close, exit ; ; Update record read ; RDRECD LDA RECINBF ;decrement 'RECORDS IN BUFFER' count DCR A STA RECINBF JM RDBLOCK LHLD RECPTR ;find where last move stopped LXI D,128 CALL MOVE128 ;move 128 characters SHLD RECPTR ;store new address for next move RET ; ; Buffer empty so read in another block from the disk ; RDBLOCK LDA EOFLG CPI 1 STC RZ MVI C,0 LXI D,BUFFER ; RDRECLP PUSH B PUSH D MVI C,STDMA CALL BDOS LXI D,FCB MVI C,READ CALL BDOS POP D POP B ORA A JZ RDRECOK DCR A JZ REOF CALL ERXIT DB '++ FILE READ ERROR ++','$' ; RDRECOK LXI H,128 DAD D XCHG INR C CALL DSKSIZ ;establish buffer size JZ RDBFULL JMP RDRECLP ; REOF MVI A,1 STA EOFLG MOV A,C ; ; Buffer full or received "End Of File (EOF)" ; RDBFULL STA RECINBF LXI H,BUFFER SHLD RECPTR MVI C,STDMA LXI D,TBUF CALL BDOS JMP RDRECD ; ; Write a record ; WRRECD LHLD RECPTR XCHG LXI H,128 CALL MOVE128 XCHG SHLD RECPTR ;new record pointer LDA RECINBF ;increment 'RECORDS IN BUFFER' count INR A STA RECINBF MOV C,A ;store the record count for now CALL DSKSIZ ;establish buffer size RNZ ;buffer not full, return ; ; Write a block to disk ; WRBLOCK LDA RECINBF ;get the number of records in the buffer ORA A RZ ;if zero, don't try to move to disk MOV C,A ;otherwise store in 'C' register LXI D,BUFFER ;start of buffer to move to disk ; DSKWRT PUSH B PUSH D PUSH H MVI C,STDMA CALL BDOS MVI C,WRITE LXI D,FCB CALL BDOS POP H POP D POP B ORA A JNZ WRERR ;error if disk is full LXI H,128 ;add in another page DAD D XCHG DCR C ;one less record left to move to disk JNZ DSKWRT XRA A STA RECINBF ;zero the 'RECORDS IN BUFFER' count LXI H,BUFFER ;reset location to next buffer start SHLD RECPTR RET ; ; Determine if the buffer size is for file transfer or for ASCII capture ; to disk then compare with current record length ; DSKSIZ LDA XFLG ;see if transferring files now ORA A MOV A,C ;get the current record count JZ DSKSIZ1 ;if yes, exit MOV A,C CPI BUFSIZ*8 ;buffer size for ASCII capture to disk RET ;return with flag set for the compare ; DSKSIZ1 LDA SAVSIZ ;get the file transfer buffer size.. CMP C ;..from special storage area and compare RET ;return with flag set for the compare ; ; Timeout time is in B, in seconds. Entry via 'RECVDG' deletes garbage ; characters on the line. For example, having just sent a record, cal- ; ling RECVDG will delete any line noise induced characters LONG before ; the ACK/NAK would be received. ; RECVDG CALL CKCHAR ;catch any garbage characters ; RECV PUSH D ; ; Get back quickly to gobble 2nd character if TIMFLG is set by the GETNM ; routine - or just step through quickly after the first wait for 'SOH' ; in the 'SOHLUP' routine. ; MSEC PUSH H LXI H,TIMFLG MOV E,M INR E LHLD QUIKTIM JZ DOQUIK LHLD TIMVAL ; DOQUIK XCHG POP H ; MWTI CALL RCVRDY JZ MCHAR MOV A,D ORA E DCX D JNZ MWTI DCR B JNZ MSEC POP D CALL CKABORT STC RET ; ; Get the character from the modem, but filter out 'ACK' and '.' chars. ; if receiving a file name. ('FILTRFLG' is set by the 'GETNM' routine.) ; MCHAR CALL I$MDDATP ;get the character that is waiting POP D PUSH PSW ;save the character for later use also CPI ACK ;see if it is 'ACK' JZ ISACK CPI '.' ;see if it is a period JNZ DOUPD ;neither, so update 'CRC' ; ISACK PUSH H PUSH D LXI H,FLTRFLG ;see if need to each 'ACK' or period MOV E,M INR E POP D POP H JZ MWTI ;yes, so do it ; DOUPD CALL CRCUPD ;calculate 'CRC' ADD C MOV C,A LDA RSEEFLG ORA A JZ MONIN LDA VSEEFLG ORA A JNZ NOMONIN LDA DATAFLG ORA A JZ NOMONIN ; MONIN POP PSW ;get the character again PUSH PSW ;resave it for later use also CALL SHOW ;show the character on the CRT ; NOMONIN CALL CKABORT POP PSW ;get the character back once more ORA A ;reset the carry flag RET ;return with the character and flag set ; ; Send a character to the modem ; SND PUSH PSW LDA SSEEFLG ORA A JZ MONOUT LDA VSEEFLG ORA A JNZ NOMONOT LDA DATAFLG ORA A JZ NOMONOT ; MONOUT POP PSW PUSH PSW CALL SHOW ; NOMONOT POP PSW PUSH PSW CALL CRCUPD ;update the 'CRC' calcuation ADD C MOV C,A ; SNDW CALL SNDRDY JNZ SNDW POP PSW JMP O$MDDATP ;send character to modem, done ; ; Waits for the first character received while waiting to send a file. ; If a character is not received in one second, it loops again until a ; char. is received or it times out. The count is set for two minutes ; before timeout. This gives the receiving station ample time to name ; a file, etc. ; WAITNAK CALL ILPRT DB 'Waiting ready signal',CR,LF,0 CALL CRLF ; WAITNLP CALL CKABORT MVI B,1 ;wait up to 1 second for a character CALL RECV CPI CANCEL ;want to quit? JZ ABORT CPI CRC ;'CRC' request? JZ WAITCRC ;yes, go set 'CRC' flag CPI NAK JZ WAICK DCR E JNZ WAITNLP JMP ABORT ; WAITCRC CALL ILPRTQ DB 'CRC request received',CR,LF,0 MVI A,1 STA CRCFLAG ;make sure in 'CRC' mode then RET ; WAICK LDA BCHFLG ;in batch mode? ORA A RZ CALL ILPRTQ DB 'Got checksum request',CR,LF,0 RET ; WAICK1 CALL ILPRTQ DB 'Name NAK received',CR,LF,0 RET ; ; Finished with the file transfer ; DONE LDA BCHFLG ;in batch mode? ORA A JNZ DONET ;exit if not LDA QFLG ORA A JZ NMSTRNS MVI B,12 ;zero out FTRNM LXI H,FTRNM MVI A,0 ; ZEROLP MOV M,A INX H DCR B JNZ ZEROLP MVI B,12 ;put file name in FTRNM LXI H,FCB+1 LXI D,FTRNM ; LOADMSG MVI A,4 ;start of file type? CMP B JZ PERIOD ;put in period if so MOV A,M CPI ' ' JZ SKPSP STAX D ;store in FTRNM INX D ; SKPSP INX H DCR B MOV A,B ORA A ;end of file name? JZ FTRNM0 ;display file name JMP LOADMSG ;loop for another character ; PERIOD MOV A,M CPI ' ' ;is file type empty? JZ FTRNM0 ;go if so MVI A,'.' ;else put period in message STAX D INX D DCR B JMP LOADMSG ; FTRNM0 CALL ILPRT DB CR,LF ; FTRNM DS 12 DB 0 CALL ILPRT DB ' Transferred',CR,LF,LF,BELL,0 ; NMSTRNS LDA FCB ;save drive number STA DISKNO LXI H,FCB ;blank out file control blocks CALL INITFCB LDA DISKNO ;put drive number back STA FCB LXI H,RESTSN ;restore record numbers LXI D,RECNOB ; for new file transfer MVI B,RECNOE-RECNOB ;routine also done in menu CALL MOVE CALL SNDNOW ;insures last character is finished CALL CKCHAR ;catch any echo characters on line LDA SNDFLG ;goes to either send or ORA A ; receive file, depending JNZ SNDFL2 ; upon which routine set JMP RCVFL1 ; the flag in multi-file mode ; DONET CALL CKABORT ;slight delay for next message CALL ILPRT DB CR,LF,'[Transfer completed]',CR,LF,BELL,0 ; DONETA LDA XITFLG ;special 'X' flag set? ORA A JZ BYEBYE ;if yes, disconnect and reboot LDA DISCFLG ;normal 'D' flag set? ORA A JZ DONETD ;if yes, disconnect, get next command ; DONETB CALL J$NPARIT ;reset to no parity XRA A STA CRCFLAG ;reset back to checksum STA FIRSTME ;reset first-time 'SOH' flag STA FSTFLG ;reset multi-file trans STA NFILFLG ;turn off the memory save for disk file STA SAVEFLG ;stop memory save in term routine. LDA VSEEFLG ;view flag set? ORA A JNZ DONETC ;if not, exit CMA STA QFLG ;VSEEFLG also sets the QFLG STA VSEEFLG ;reset the flag ; DONETC LXI H,QFLG ;in quiet mode? MOV A,M ORA A MVI M,'Q' ;reset the flag to normal JZ MENU ;if yes, go back to command line LDA ABTFLG ;come here from a timeout? ORA A JNZ MENU ;if yes, go to command mode LDA JMPCMD ;requesting return to command mode? ORA A JZ MENU ;if yes go to command mode CALL CRLF ;turn up a new line JMP TERM ;otherwise return to terminal mode ; DONETD CALL ILPRT DB CR,LF,'<< DISCONNECTED >>',BELL,CR,LF,0 CALL J$GOODBY ;set 'DTR' low for 300 ms. LDA PMMIMD ORA A ;;; CNZ J$GOODBY DB 0,0,0 ;(PREVENT DOUBLE DISCONNECT) LDA AUTDIAL ;using a Hayes-type modem? ORA A ;;; CNZ J$GOODBY ;if yes, disconnect DB 0,0,0 ;(PREVENT DOUBLE DISCONNECT) JMP MENU0 ;back to command line ; MOVEFCB LXI H,FCB+16 LXI D,FCB MVI B,16 CALL MOVE XRA A STA FCBSNO STA FCBEXT RET ; SHOW CPI LF JZ CTYPE CPI CR JZ CTYPE CPI 9 JZ CTYPE CPI ' ' JC SEEHEX CPI 7FH JC CTYPE ; SEEHEX PUSH PSW MVI A,'(' CALL CTYPE POP PSW CALL HEXO MVI A,')' JMP CTYPE ; CTYPE PUSH B PUSH D PUSH H MOV E,A MVI C,WRCON CALL BDOS POP H POP D POP B RET ; CRLF PUSH PSW MVI A,CR CALL TYPE MVI A,LF CALL TYPE POP PSW RET ; STAT PUSH B PUSH D PUSH H ; VSTAT CALL $-$ ;BIOS constat address, filled in POP H ; by 'INITAD' routine POP D POP B ORA A RET ; KEYIN PUSH B PUSH D PUSH H ; VKEYIN CALL $-$ ;BIOS 'CONIN' address, filled in POP H ; by 'INITAD' routine POP D POP B RET ; TYPE PUSH PSW PUSH B PUSH D PUSH H MOV C,A ; VTYPE CALL $-$ ;BIOS 'CONOUT' address, filled in POP H ; by 'INITAD' routine POP D POP B POP PSW RET ; ; Get a character from the keyboard, convert to upper-case if needed, ; and show on CRT ; KBDCHR CALL KEYIN ;get a keyboard character CALL UCASE ;convert to upper case if needed CALL TYPE ;show on CRT RET ; UCASE CPI 61H ;changes lower case character RC ; in 'A'reg. to upper case CPI 7AH+1 ;see if more than small 'Z' RNC ANI 5FH RET ; DECOUT PUSH PSW PUSH B PUSH D PUSH H LXI B,-10 LXI D,-1 ; DECOU1 DAD B INX D JC DECOU1 LXI B,10 DAD B XCHG MOV A,H ORA L CNZ DECOUT MOV A,E ADI '0' CALL CTYPE POP H POP D POP B POP PSW RET ; ;----> DHXOUT: - double precision hex output routine ; DHXOUT PUSH H PUSH PSW MOV A,H ;get MS byte CALL HEXO ;output high order byte MOV A,L ;get LS byte CALL HEXO ;output low order byte POP PSW POP H RET ; ; Prints a hex value in 'A' on the CRT ; HEXO PUSH PSW RAR RAR RAR RAR CALL NIBBL POP PSW ; NIBBL ANI 0FH CPI 10 JC ISNUM ADI 7 ; ISNUM ADI '0' ;add in ASCII bias JMP CTYPE ; ; Displays the control-characters shown in the menu ; SHFTYPE PUSH PSW CALL ILPRT DB 'CTL-',0 POP PSW ADI 40H ;convert binary to ASCII chars. CALL TYPE ;show on the CRT JMP ILPRT ; ; Write a string of characters to the CRT ; ILPRT XTHL ; ILPRT1 MOV A,M ;get the character ORA A ;see if a "0" for end of string JZ ILPRT2 ;if yes, all done CALL CTYPE ;show on CRT INX H ;get the next location in the string JMP ILPRT1 ; ILPRT2 XTHL ;restore the address RET ; ; Write a string of characters unless in the Quiet mode ; ILPRTQ XTHL ; ILPRTQ1 MOV A,M ;get the character ORA A ;see if a "0" for end of string JZ ILPRTQ2 ;if yes, all done LDA QFLG ORA A MOV A,M CNZ CTYPE ;show on CRT if not in quiet mode INX H ;get the next location in the string JMP ILPRTQ1 ; ILPRTQ2 XTHL ;restore the address RET ; PRTMSG MVI C,PRINT ;print the string JMP BDOS ; ; Displays error statement then resturns to command mode ; ERXIT POP D CALL PRTMSG MVI A,BELL CALL TYPE CALL CRLF ; ERXIT1 MVI A,1 STA ABTFLG ;shows an unintentional abort LDA BCHFLG ;in batch mode? ORA A JNZ DONETB ;if not, exit JMP ABORT ;abort other computer ; ; Exits directly to CP/M, with no reboot unless you have selected pos- ; sible overwriting of 'CCP' ; EXIT LDA OLDUSER ;get original user number back MOV E,A CALL STUSER MVI C,STDMA LXI D,TBUF ;restore original buffer area CALL BDOS LXI B,1A00H ;a little delay timer ; EXIT1 DCX B ;one less loop to make MOV A,B ORA C JNZ EXIT1 ;loop again till both are zero CALL CKCON ;catch any extra keyboard characters LDA NFILFLG ;saving for a disk file? ORA A CNZ WRFIL1 ;if yes, close the file LDA SAVCCP ;was 'CCP' left intact? ORA A JZ 0000H ;if not, warm reboot just in case ; EXIT2 XRA A ;clear the 'A' reg. and all flags LHLD STACK ;get the original stack pointer back SPHL ;set the stack pointer to that address RET ; ; Catch any extra keyboard characters coming through BDOS ; CKCON MVI C,CONST ;see if any characters waiting CALL BDOS ORA A RZ ;if not, exit MVI C,RDCON ;otherwise get the character CALL BDOS XRA A ;discard the character JMP CKCON ;see if any others ; MOVE128 MVI B,128 ; MOVE MOV A,M STAX D INX H INX D DCR B JNZ MOVE RET ; ; Sends the character in 'A' to the modem ; SNDCHR CALL SNDNOW ;wait until modem is ready for character MOV A,B ;get the original character back JMP O$MDDATP ;send the character to modem, return ; ; Initializes CP/M file control blocks AT 5CH and 6CH ; STFCB LXI D,CMDBUF LXI H,FCB JMP CMDLINE ; ; Adjusts loop counter for the selected clock speed. Returns with delay ; in 'HL'. ; FIXCNT LDA CLOCK ;get the user's clock speed PUSH D ;save the current 'DE' value PUSH H POP D ;get same value into 'DE' as in 'HL' ; CNTMUL DAD D ;add 'DE' to 'HL' DCR A ;one less to go JNZ CNTMUL POP D ;restore current 'DE', delay in 'HL' RET ; ;======================================================================= ; ; Loads a command line addressed by 'DE' registers (max # characters in ; line in 'DE', number of characters in line in DE+1, line starts in ; DE+2) into FCB addressed by 'HL' registers. The FCB should be at least ; 33 bytes in length. The command line buffer must have a maximum length ; at least one more than the greatest number of characters that will be ; needed. CMDLINE PUSH PSW PUSH B PUSH D PUSH H CALL INITIAL ;fills FCBs with blanks and nulls XCHG ;get start of command line in HL INX H ;address # bytes in cmd line MOV E,M ;load de pair with # bytes MVI D,0 INX H DAD D ;point to byte after last character MVI M,CR ; in cmd line and store delimiter POP H ;restore HL and DE POP D PUSH D PUSH H INX D ;address start of command INX D CALL DRIVE ; NAME1 MVI C,8 ;transfer first filename to FCB CALL TRANS CPI CR JZ DONEL CPI ' ' ;if space, then start of JZ NAME2 ; second filename POP H ;filetype must be after PUSH H ; eighth byte of name LXI B,9 DAD B MVI C,3 ;transfer type of first file CALL TRANS CPI CR JZ DONEL ; NAME2 LDAX D ;eat multiple spaces CPI ' ' ; between names JNZ NAME3 INX D JMP NAME2 ; NAME3 POP H ;second name starts in 16th byte PUSH H ;point HL to this byte LXI B,16 DAD B CALL DRIVE MVI C,8 CALL TRANS CPI CR JZ DONEL POP H ;second type starts in 25th byte PUSH H LXI B,25 DAD B MVI C,3 CALL TRANS ; DONEL POP H PUSH H INX H ;point to 1st char of 1st name in FCB CALL SCANL ;check for * (ambiguous names) POP H PUSH H LXI B,17 ; to 1st char of second name in FCB DAD B CALL SCANL POP H POP D POP B POP PSW RET ; ; Subroutines for CMDLINE section ; INITIAL PUSH H PUSH B MVI M,0 INX H MVI B,11 MVI A,' ' CALL INITFIL MVI B,5 XRA A CALL INITFIL MVI B,11 MVI A,' ' CALL INITFIL MVI B,4 XRA A CALL INITFIL POP B POP H RET ; INITFIL MOV M,A INX H DCR B JNZ INITFIL RET ; DRIVE INX D ;check 2nd byte of filename - if it LDAX D ; is a ":", then drive was specified DCX D CPI ':' JNZ DEFDR ;else zero for default drive LDAX D ;('INIT' put zero) ANI 5FH SUI 40H ;calculate drive (A=1, B=2,...) MOV M,A ;place it in FCB. INX D ;address first byte INX D ; DEFDR INX H ;name field in FCB RET ; TRANS LDAX D ;transfer from command line to FCB INX D ;up to number of characters specified CPI CR ;in 'C' reg. keep scanning field RZ ; without transfer until a delimiting CPI '.' ; field char such as '.', blank, or RZ ; CR (for end of commmand line) CPI ' ' RZ DCR C JM TRANS ;once C-reg is less than zero, keep MOV M,A ; reading command line but do not INX H ; transfer to FCB JMP TRANS ; SCANL MVI B,8 ;scan file name addressed by HL ; TSTNAM MOV A,M CPI '*' ;if '*' found, fill in rest of field JZ FILL1 ; with '?' for ambiguous name INX H DCR B JNZ TSTNAM JMP TSTTYP ; FILL1 CALL FILL ; TSTTYP MVI B,3 ;scan and fill type field for name ; TSTTYPL MOV A,M ; specified above CPI '*' JZ FILL2 INX H DCR B JNZ TSTTYPL RET ; FILL2 CALL FILL RET ; FILL MVI M,'?' ;routine transfers '?' INX H DCR B JNZ FILL RET ; ;======================================================================= ; LISTS DIRECTORY AND GIVES FREE SPACE REMAINING ON THE REQUESTED DRIVE. ; ; Disk system reset - currently bypassed, if you wish this feature, put ; JMP DRLST2 instead of JMP DRLST3 in the eighth line. The ; current disk (plus the A: drive) will then reset each DIR re- ; quest. You can also reset the disk with the LOG command when ; when inserting a different one. This saves a reset each time ; DIR might be requested. ; DRLST CALL GETDISK ADI 'A' ;change to ASCII STA DRNAME ;show for drive name STA ACTDRV ;show for space remaining on drive ; DRLST1 JMP DRLST3 ; DRLST2 MVI C,RESET ;13 reset disk system (RESETDK) CALL BDOS ; ; Directory list routine ; DRLST3 LXI D,CMDBUF ;put command line in FCB LXI H,FCB ; addressed by HL-reg CALL CMDLINE ; and then LXI H,FCB4 CALL INITFCB LDA FCB2 ;get drive number STA FCB4 LDA FCB2+1 CPI ' ' ;if a space (blank) get all names PUSH PSW CZ QSTMARK POP PSW CNZ MOVNAME ;else move name into FCB CALL DRIVEL MVI C,STDMA LXI D,TBUF CALL BDOS LDA NOFCOL ;number of columns into 'A' reg. STA NAMECT ;CRLF after 'NOFCOL' number of columns LXI D,FCB4 MVI C,SRCHF ;do first search CALL BDOS INR A ;0FFH --> 0 if no file(s) found JNZ DIRLOOP CALL ILPRT DB '++ FILE NOT FOUND ++',0 JMP STORAGE ;still show storage on default drive ; DIRLOOP CALL GETADD INX H ;point to first letter of filename LXI D,PRTNAME LXI B,8 CALL MOVER INX D LXI B,3 CALL MOVER CALL ILPRT ; PRTNAME DB ' ','.',' ',0 ; 8 spaces, period, 3 spaces ; NEXTSR LXI D,FCB4 MVI C,SRCHN ;do next search CALL BDOS INR A ;if 0FFH --> 0 then JZ STORAGE ; directory-read finished PUSH PSW PUSH D PUSH H LDA NAMECT DCR A STA NAMECT ;name count updated ORA A CZ CRLF ;terminate line of file names JNZ FENCE LDA NOFCOL ;restart columns-per-line count STA NAMECT JMP NOFENCE ;fence not needed ; FENCE CALL ILPRT DB ' : ',0 ;fence if not at end of line or ; ; LAST FILENAME NOFENCE POP H POP D POP PSW JMP DIRLOOP ; ; Determine storage remaining on default drive ; STORAGE CALL CKCPM3 MVI C,DSKPAR ;current disk parameter block CALL BDOS INX H INX H MOV A,M ;get block shift factor STA BSHIFTF INX H ;bump to block mask MOV A,M ;get it STA BMASK INX H INX H MOV E,M ;get max block number INX H MOV D,M XCHG SHLD BMAX ;put it away MVI C,DSKALL ;address of cp/m allocation vector CALL BDOS XCHG ;get its length LHLD BMAX INX H LXI B,0 ;initialize block count to zero ; GSPBYT PUSH D ;save allocation address LDAX D MVI E,8 ;set to process 8 blocks ; GSPLUP RAL ;test bit JC NOTFRE INX B ; NOTFRE MOV D,A ;save bits DCX H MOV A,L ORA H JZ ENDALC ;quit if out of blocks MOV A,D ;restore bits DCR E ;count down 8 bits JNZ GSPLUP ;do another bit POP D ;bump to next count INX D ; of allocation vector JMP GSPBYT ;process it ; ENDALC POP D ;clear alloc vector pointer from stack MOV L,C ;copy block to HL MOV H,B LDA BSHIFTF ;get block shift factor SUI 3 ;convert from records to thousands (k) JZ PRTFREE ;skip shifts if 1k blocks ; FREKLP DAD H ;multiply blocks by k per block DCR A JNZ FREKLP ; PRTFREE CALL DECOUT ;(# of free k bytes now in 'HL') LXI D,FREEMSG JMP PRTMSG ; ; Subroutines for 'DRLST' section ; QSTMARK MVI A,'?' ;if blank in FCB, put in 11 '?' chars. MVI B,11 LXI H,FCB4+1 ; QSTLP MOV M,A INX H DCR B JNZ QSTLP RET ; MOVNAME LXI H,FCB2+1 LXI D,FCB4+1 LXI B,11 CALL MOVER RET ; GETADD DCR A ;un-do the INR above ADD A ;times 32 ADD A ADD A ADD A ADD A ADI TBUF ;add buffer offset MOV L,A MVI H,0 RET ; DRIVEL LDA FCB4 ;if no drive, use ORA A ; default drive in DRNAME JZ PRNTHD PUSH PSW DCR A MOV E,A MVI C,SELDSK CALL BDOS POP PSW ADI 40H ;make 1=A, 2=B, etc., and STA DRNAME ; overwrite default stored below STA ACTDRV ; PRNTHD CALL ILPRT DB 'Drive ' ; DRNAME DB ' :',CR,LF,0 RET ; ; Initialized storage ; FREEMSG DB 'k bytes free on drive ' ACTDRV DB ' :',CR,LF,'$' ; ; Uninitialized storage ; BMAX DS 2 ;highest block number on drive BMASK DS 1 ;rec/blk - 1 BSHIFTF DS 1 ;number of shifts to multiply by rec/blk ; ;======================================================================= ; ; Duplicates 'READ BUFFER' routine same as CP/M function 10, but does ; not use CTL-C (reason for the routine). Does allow controls U, R, E ; and H (BACKSPACE). Outputs bell if the input is greater than the ; buffer. ; INBUF PUSH PSW PUSH H PUSH B PUSH D ;'DE' registers must be pushed last ; INBUFA CALL CLRBUF ;clear the buffer area POP D ;get address of buffer on retries PUSH D ;restore stack XRA A INX D ;address count field STAX D ;initialize with a zero in count byte INX D XCHG ;address first buffer byte with 'HL' ; INBUFB CALL KEYIN ;(waits for char) CALL UCASE ;convert to upper case if needed CPI CR ;is it <return> (enter command)? JZ INBUFR ;if so, then return. CPI 08H ;CTL-H backspaces over deleted character JZ DELETE CPI 7FH ;is it a delete? JZ DELETE CPI 'U'-40H ;is it a CTL-U? JZ INBUFO ;output #, CR, LF, and start over CPI 'R'-40H ;CTL-R retypes line JZ RETYPE ; INBUFC MOV B,A ;save inputted character XCHG ;save 'HL' in 'DE' POP H ;get address of buffer in 'HL' PUSH H ;restore stack INX H ;address count byte INR M ;increase count byte DCX H ;address maximum MOV A,M ;put maximum in 'A' INX H ;address count CMP M ;compare count to maximum JC ALERTL ;if maximum, ring bell and wait for cr. XCHG ;restore buffer pointer to 'HL' MOV M,B ;put inputted character in buffer MOV A,B ;output it CPI EXITCHR ;exit character? JZ INBUFR ;if yes, all done CPI 20H ;printing character? CNC TYPE ;if yes, print it INX H ;bump pointer JMP INBUFB ;get next character ; DELETE XCHG ;save buffer pointer in 'DE' POP H ;address beginning of buffer PUSH H ;restore stack INX H ;address count field MOV A,M SUI 1 ;decrease count MOV M,A JC NODEL ;don't delete past beginning of buffer XCHG ;restore buffer pointer to 'HL' DCX H ;point to last byte inputted MOV A,M ;get the character being deleted MVI M,' ' ;restore blank CPI ' ' ;see if a non-printing character JC INBUFB ;if yes, skip the CRT backup MVI A,BKSP CALL TYPE ;true erase if 08H MVI A,' ' CALL TYPE MVI A,BKSP CALL TYPE JMP INBUFB ; MORE DB '12345' ;5 bytes extra from DELETE routine fix ; NODEL INR M ;do not leave count negative XCHG ;restore pointer to 'HL' MVI A,BELL ;says can go no further CALL TYPE JMP INBUFB ; INBUFO MVI A,'#' ;announces the line has been removed CALL TYPE CALL CRLF JMP INBUFA ; RETYPE POP D PUSH D INX D ;point to current number of characters LDAX D MOV B,A MVI A,'#' CALL TYPE CALL CRLF MOV A,B ;test if zero input ORA A JZ INBUFB ; CTLRLP INX D LDAX D CALL TYPE DCR B JNZ CTLRLP JMP INBUFB ; ALERTL MVI A,BELL ;alarm for full buffer CALL TYPE DCR M XCHG JMP INBUFB ; PCRLF CALL CRLF JMP INBUFB ; INBUFR CALL CRLF ;1st new line after a command character POP D POP B POP H POP PSW RET ; CLRBUF POP D ;accounts for call POP H ;restore the registers PUSH H PUSH D MOV B,M ;save maximum in 'B' INX H ;point to first buffer byte INX H MVI A,' ' ; CLEARL MOV M,A INX H DCR B JNZ CLEARL RET ; ;======================================================================= ; ; In-line compare. Compares string addressed by 'DE' to string after ; call (ends with zero). Return with carry set means strings not the ; same. All registers except 'A'-reg are unaffected. ; INLNCP XTHL ;point 'HL' to 1st character PUSH D ; ILCOMPL MOV A,M ;'HL' points to in-line string ORA A ;end of string if zero JZ SAME LDAX D CMP M JNZ NOTSAME INX H INX D JMP ILCOMPL ; NOTSAME XRA A ;if not same, finish through ; NSLP INX H ; string so return will CMP M ; go to instruction after JNZ NSLP ; string and not remainder of string STC ; SAME POP D INX H ;avoids a NOP instruction XTHL ; when returning RET ; ;======================================================================= ; MULTI-FILE ACCESS ROUTINE ; ; Multi-file access subroutine. Allows processing of multiple files ; (i.e., *.ASM) from disk. Builds the correct name in the FCB each time ; it is called. The command is used in programs to process single or ; multiple files. The FCB is set up with the next name, ready to do ; normal processing (open, read, etc.) when routine is called. Carry is ; set if no more names are found. MFNAM PUSH B PUSH D PUSH H MVI C,STDMA LXI D,TBUF CALL BDOS POP H POP D POP B XRA A STA FCBEXT LDA MFFLG1 ORA A JNZ MFNAM1 MVI A,1 STA MFFLG1 LXI H,FCB LXI D,MFNAM5 LXI B,12 CALL MOVER LDA FCB STA MFNAM6 ;save disk in current FCB LXI H,MFNAM5 LXI D,FCB LXI B,12 CALL MOVER PUSH B PUSH D PUSH H MVI C,SRCHF LXI D,FCB CALL BDOS POP H POP D POP B JMP MFNAM2 ; MFNAM1 LXI H,MFNAM6 LXI D,FCB LXI B,12 CALL MOVER PUSH B PUSH D PUSH H MVI C,SRCHF LXI D,FCB CALL BDOS POP H POP D POP B LXI H,MFNAM5 LXI D,FCB LXI B,12 CALL MOVER PUSH B PUSH D PUSH H MVI C,SRCHN LXI D,FCB CALL BDOS POP H POP D POP B ; MFNAM2 INR A STC JNZ MFNAM3 STA MFFLG1 RET ; MFNAM3 DCR A ANI 3 ADD A ADD A ADD A ADD A ADD A ADI 81H MOV L,A MVI H,0 PUSH H ;save name pointer LXI D,MFNAM6+1 LXI B,11 CALL MOVER POP H LXI D,FCB+1 LXI B,11 CALL MOVER XRA A STA FCBEXT STA FCBRNO RET ; MOVER MVI A,2 INR A JPE MFNAM4 DB 0EDH,0B0H ;Z-80 'LDIR' instruction RET ; MFNAM4 MOV A,M ;used if an 8080 CPU is active STAX D INX H INX D DCX B MOV A,B ORA C JNZ MFNAM4 RET ; ;======================================================================= ; CALCULATE FILE TRANSFER TIME ; Shows the time to transfer a file at various baud rates. (110-19200) ; SNDTM CALL ILPRT DB 'File open: ',0 LHLD RCNT ;get record count CALL DECOUT ;print decimal number of records ; LDA HEXSHO ORA A JZ SNDTM1 CALL ILPRT DB ' (',0 CALL DHXOUT ;now print size in hex CALL ILPRT DB 'H)',0 ; SNDTM1 CALL ILPRT DB ' records' DB CR,LF,'Send time: ',0 LDA MSPEED ;get the speed indicator MVI D,0 MOV E,A ;set up for table access LXI H,BTABLE ;point to baud factor table DAD D ;index to proper factor DAD D ;factor in 'DE' MOV E,M INX H MOV D,M LHLD RCNT ;get # of records CALL DVHLDE ;divide HL by value in DE (records/min) PUSH H MOV L,C MOV H,B CALL DECOUT ;print the minutes portion CALL ILPRT DB ' mins, ',0 LXI H,RECDBL ;point to divisors for seconds LXI D,0 ; calculation LDA MSPEED ;get index for baud rate MOV E,A DAD D ;index into table MOV A,M ;get multiplier POP H ;get remainder CALL MULHLA ;multiply the 'HL' x 'A' CALL SHFTHL CALL SHFTHL CALL SHFTHL CALL SHFTHL MVI H,0 CALL DECOUT ;print the seconds portion CALL ILPRT DB ' secs at ',0 CALL PRTBAUD CALL ILPRTQ DB 'To cancel: use CTL-X',CR,LF,0 RET ; BTABLE DW 5,13,20,26,29,48,85,152,280,480,0 ;records/min for.. RECDBL DB 192,74,48,37,33,20,11,6,3,2,0 ;110-19200 baud ; ; Shows baud rates set for 'time to send' file transfer ; PRTBAUD LXI H,BAUDSPD MVI D,0 LDA MSPEED ;get baud rate code MOV E,A ;x1 ADD A ;x2 ADD A ;x4 ADD E ;x5 ADD E MOV E,A DAD D ;point to correct rate XCHG MVI C,PRINT CALL BDOS CALL ILPRT DB ' bps ',CR,LF,0 RET ; BAUDSPD DB '110$',0,0,'300$',0,0,'450$',0,0,'600$',0,0,'710$',0,0 DB '1200$',0,'2400$',0,'4800$',0,'9600$',0,'19200$' ; ;----> DVHLDE: Divides 'HL' by value in 'DE', ; Upon exit: 'BC'=quotient,'L'=remainder ; DVHLDE PUSH D ;save divisor MOV A,E CMA ;negate divisor MOV E,A MOV A,D CMA MOV D,A INX D ;'DE' is now two's complemented LXI B,0 ;init quotient ; DIVL1 DAD D ;subtract divisor from dividend INX B ;bump quotient JC DIVL1 ;loop till sign changes DCX B ;adjust quotient POP D ;retrieve divisor DAD D ;adjust remainder RET ; ;----> MULHLA: Multiply the value in 'HL' by the value in 'A' ; Return with answer in 'HL' ; MULHLA XCHG ;multiplicand to 'DE' LXI H,0 ;init product INR A ;adjust multiplier for zero test ; MULLP DCR A RZ DAD D JMP MULLP ; ; Shift 'HL' register pair one bit to the right ; SHFTHL MOV A,L RAR MOV L,A ORA A ;clear the carry MOV A,H RAR MOV H,A RNC MVI A,128 ORA L MOV L,A RET ; ;======================================================================= ; CRC SUBROUTINES ; ; Check 'CRC' bytes of record just received ; CRCCHK PUSH H LHLD CRCVAL MOV A,H ORA L POP H RZ MVI A,0FFH RET ; ; Generate the CRC tables for fast calculations ; CRCGN LXI H,CRCTBL ;address at start of 'CRC' lookup table MVI C,0 ; CRCGN1 XCHG ;store table location into 'DE' LXI H,0 ;clear 'HL' pair MOV A,C PUSH B MVI B,8 XRA H MOV H,A ; CRCGN2 DAD H ;index into the table JNC CRCGN3 MVI A,16 ;using x^ 16 + x^12 + x^5 + 1 algorithm XRA H ;(called 'SDLC' networking algorithm) MOV H,A MVI A,32+1 XRA L MOV L,A ; CRCGN3 DCR B JNZ CRCGN2 ;make 8 loops, one for each bit ; ; Value now in 'HL', table address still stored in 'DE'. Exchange, and ; store the 'CRC' value in the two tables after splitting. ; POP B ;finished borrowing the 'B' register XCHG ;address back in 'HL', 'CRC' in 'DE' MOV M,D ;store 1st part of 'CRC' value INR H ;move up 256 bytes MOV M,E ;store 2nd part of 'CRC' value DCR H ;move back 256 bytes INX H ;increment to next location INR C ;done when 'C' reg. turns zero again JNZ CRCGN1 ;now go do the next location RET ; ; Update the CRC value from a character in the 'A' register ; CRCUPD PUSH PSW ;save all registers just in case PUSH B PUSH D PUSH H LHLD CRCVAL ;get current value XCHG ;put in 'DE' for now MVI B,0 XRA D MOV C,A ;now have the character in 'BC' pair LXI H,CRCTBL ;start of 'CRC' lookup-table DAD B ;index into the 'CRC' table MOV A,M ;get the value from the table XRA E MOV D,A INR H ;move 256 bytes for 2nd table location MOV E,M ;put value there into 'E' register XCHG ;put 'DE' into 'HL' SHLD CRCVAL ;updated 'CRC' value with this character POP H ;restore all registers POP D POP B POP PSW RET ; ;=========================START OF MENU ================================ ; MENU0 LDA NFILFLG ORA A JZ MENU ;exit if not saving memory for disk file CALL ILPRT ;else print message DB CR,LF,'** File still open, use DEL, DIR, WRT, E, L ' DB 'or T ** ',CR,LF,BELL,0 JMP MENU1 ; MENU XRA A STA ABTFLG ;null the flag ; MENU1 LXI H,RESTSN ;restore record numbers for new file LXI D,RECNOB ; transfer MVI B,RECNOE-RECNOB CALL MOVE LXI H,RSTOPT ;restore option table LXI D,OPTBL MVI B,OPTBE-OPTBL CALL MOVE XRA A STA FSTFLG STA TIMFLG STA FLTRFLG ;reset multi-file trans STA MFFLG1 JMP XPRT ; ; * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ; MENU OF COMMANDS ; * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ; MENU2 CALL CLRTST CALL ILPRT DB ' Single Letter Commands',CR,LF,LF DB ' ? - Display current settings',CR,LF MENU3 DB ' ^ - Function key intercept character, ' DB 'then (0-9)',CR,LF DB ' M - Display the menu',CR,LF DB ' E - Terminal mode with echo',CR,LF DB ' L - Terminal mode with local echo',CR,LF DB ' T - Terminal mode',CR,LF DB ' For copying text to disk use T (E or L) ' DB 'FILENAME.TYP',CR,LF DB ' Start or Stop toggles described on subsequent' DB ' screen.',CR,LF DB ' R - Receive CP/M file using Christensen Protocol' DB CR,LF DB ' S - Send CP/M file using Christensen Protocol',CR,LF DB ' COMMAND: R (or S) FILENAME.TYP',CR,LF DB ' R and S can use the following subcommands:' DB CR,LF DB ' B - Bulk transfer using wildcards ' DB '(e.g., *.*)',CR,LF DB ' D - Disconnect when done' DB CR,LF DB ' Q - Quiet mode (no messages to console)' DB CR,LF DB ' V - View <R> or <S> bytes on console' DB CR,LF DB ' X - When done, disconnect, go to CP/M' DB CR,LF,LF DB ' The single letter commands may also be used on ' DB 'the',CR,LF DB ' command line when the program is initially ' DB 'executed.',CR,LF,LF,0 ; THRLTR CALL J$NXTSCR CALL ILPRT DB ' Three Letter Commands',CR,LF,LF DB 'CPM - Exit from this program to CP/M',CR,LF DB 'DIR - List directory and space free (may specify ' DB 'drive)',CR,LF DB 'ERA - Erase file (may specify drive)',CR,LF DB 'LOG - Change default drive/user no. (specify ' DB 'drive/user)',CR,LF DB ' and reset disks. e.g. LOG A0: or LOG B: ' DB '(user # unchanged)',CR,LF DB 'SPD - Set file output speed in terminal mode' DB CR,LF,0 ; CALL SORPTST JNZ NOTIME CALL ILPRT DB 'TIM - Select Baud rate for "time-to-send" msg.',CR,LF,0 ; NOTIME LDA TGLECRC ORA A JZ NOTOCRC CALL ILPRT DB 'TCC - Toggle CRC/Checksum mode on receive',CR,LF,0 ; NOTOCRC LDA TGLELOC ORA A JZ NTOGOC CALL ILPRT DB 'TLC - Toggle local command immediate or after ',0 LDA EXTCHR CALL SHFTYPE DB CR,LF,0 ; NTOGOC LDA TGLELF ORA A JZ NTOGUB CALL ILPRT DB 'TLF - Toggle LF after CR in "L" or "T" mode for ' DB 'a disk file',CR,LF,0 ; NTOGUB LDA TGLERUB ORA A JZ NTOGF CALL ILPRT DB 'TRB - Toggle rubout to backspace conversion',CR,LF,0 ; NTOGF LDA TGXOFF ORA A JZ NTOGOF CALL ILPRT DB 'TXO - Toggle XOFF testing in terminal mode ' DB 'file output',CR,LF,0 ; NTOGOF LDA PMMIMD ;using a PMMI modem? ORA A JNZ NONUM LDA AUTDIAL ;using a Hayes-type modem? ORA A JNZ NTOG2 ; NTOG1 CALL ILPRT DB 'NUM - List remote systems',CR,LF,0 ; NTOG2 LDA STUPTST ORA A JZ NONUM CALL ILPRT DB 'SET - Set modem baud rate',CR,LF,0 ; NONUM CALL ILPRT DB 'BYE - Disconnect, then return to CP/M' DB CR,LF,0 LDA PMMIMD ;using a PMMI modem? ORA A JNZ NONUM0 ;if yes, display 'CAL' LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ NOPMMI ;exit if neither ; NONUM0 CALL ILPRT DB 'CAL - Dial number',CR,LF,0 ; NOPMMI CALL ILPRT DB 'DSC - Disconnect from the phone line',CR,LF,LF DB ' The following are terminal text ' DB 'buffer commands:',CR,LF,LF,0 ; SKPLF CALL ILPRT DB 'DEL - Delete memory buffer and file',CR,LF DB 'WRT - Write memory buffer to disk file',CR,LF,LF,0 CALL NXTSCR CALL ILPRT DB ' Local Commands while in Terminal Mode' DB CR,LF,LF,0 LDA BRKCHR CALL SHFTYPE DB ' - Send a break tone for 300 ms.',CR,LF,0 LDA PMMIMD ORA A JZ SKPLF1 LDA CHGBAUD CALL SHFTYPE DB ' - Change baud rate',CR,LF,0 ; SKPLF1 MVI A,EXITCHR CALL SHFTYPE DB ' - Exit to command mode',CR,LF,0 LDA TRANLOG ORA A JZ NOTLOG LDA LOGCHR CALL SHFTYPE DB ' - Send log-on message',CR,LF,0 ; NOTLOG LDA NOCONCT CALL SHFTYPE DB ' - Disconnect from the phone line',CR,LF,0 LDA LSTTST ORA A JZ NOLIS LDA LSTCHR CALL SHFTYPE DB ' - Toggle printer',CR,LF,0 ; NOLIS MVI A,LF CALL TYPE LDA SAVECHR CALL SHFTYPE DB ' - Start copy into buffer',CR,LF,0 LDA UNSAVCH CALL SHFTYPE DB ' - Stop copy into buffer',CR,LF,LF DB ' Start & Stop may be toggled as often as ' DB 'desired.',CR,LF DB ' A ";" at start of line indicates buffer ' DB 'is copying.',CR,LF DB ' XOFF automatically used to stop input ' DB 'when writing',CR,LF DB ' full buffer to disk, XON sent to ' DB 'resume.',CR,LF,LF,0 LDA TRANCHR CALL SHFTYPE DB ' - Transfer ASCII file to remote',CR,LF,LF,0 LDA LOCNXT ORA A LDA EXTCHR JNZ REMDFLT CALL SHFTYPE DB ' - Send local control character to remote' DB CR,LF,LF,0 JMP CKSPCL ; REMDFLT CALL SHFTYPE DB ' - Next character will be used for local control' DB CR,LF,0 ; CKSPCL CALL J$SPMEN ;may have a special menu in the overlay ; ;FALLS ON THROUGH TO 'XPRT' ; ;======================================================================= ; START OF COMMAND LINE HANDLING ; ; Check first to see if a file was opened for copying incoming to disk ; XPRT CALL CRLF ;turn up a blank line to look nice LDA NFILFLG ;have a file open for text mode copy? ORA A JZ XPRT1 ;if not, exit ; CALL GETSPC ;otherwise show remaining space CALL ILPRT DB ' Bytes of buffer free',CR,LF,LF,0 ; ; Show disk drive and user number, then command line ; XPRT1 MVI C,CURDSK ;current disk function CALL BDOS ADI 'A' ;make ASCII CALL TYPE CALL GETUSER ;get current user number ORA A JZ XPRT2 ;skip if user 0 MVI H,0 MOV L,A CALL DECOUT ;show current user area ; XPRT2 MVI A,'>' CALL TYPE MVI A,'>' CALL TYPE CALL ILPRT DB 'COMMAND: ',0 XRA A STA XFLG ;null the buffer-length flag ; ; Get the command line parameters ; GTCMD LXI D,CMDBUF ;enter command CALL INBUF LDA CMDBUF+2 CPI EXITCHR ;exit character JZ XPRT1 ; GTCMD1 CPI '^' ;function key intercept character JZ FUNCT ; (supplied from 'INTCPT' table) CPI '?' JZ CURPAR CPI ' ' JZ XPRT+3 ;skip the extra line feed LDA CMDBUF+3 CPI ':' ;see if request for new drive/user JZ STDRV LXI D,CMDBUF+2 ;point to command CALL INLNCP DB 'CPM',0 JNC EXIT CALL CRLF ;(1st CR/LF at 'INBUFR') CALL INLNCP DB 'LOG',0 JNC LOGNW CALL INLNCP DB 'DIR',0 JNC DIR CALL INLNCP DB 'ERA',0 JNC ERASEF CALL INLNCP DB 'SPD',0 JNC STSPD CALL INLNCP DB 'TIM',0 JNC STTIM CALL INLNCP DB 'TCC',0 JNC TGCRC CALL INLNCP DB 'TRB',0 JNC TGRUB CALL INLNCP DB 'TLC',0 JNC TGLOC CALL INLNCP DB 'TLF',0 JNC TGLF CALL INLNCP DB 'TXO',0 JNC TGTXOFF LDA PMMIMD ;using a PMMI modem? ORA A JNZ NONUM1 ;if yes, exit LDA AUTDIAL ;using a Hayes-type modem? ORA A JNZ NONUM1 ;if yes, exit CALL INLNCP DB 'NUM',0 JNC NUMPR ; NONUM1 LDA STUPTST ORA A JZ NXOPT1 CALL INLNCP DB 'SET',0 JNC STUPENT ; NXOPT1 CALL INLNCP DB 'WRT',0 JNC WRFIL CALL INLNCP DB 'DEL',0 JNC NEWFILE CALL INLNCP DB 'BYE',0 JNC BYEBYE CALL INLNCP DB 'DSC',0 JNC DONETD LDA PMMIMD ;using a PMMI modem? ORA A JNZ NXOPT0 ;if yes, exit LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ NXOPT2 ;exit if neither modem-type ; NXOPT0 CALL INLNCP ;'DE' set from 1st 'INLNCP' call DB 'CAL',0 JC NXOPT2 MVI A,' ' ;fool the system STA CMDBUF+3 ; 'TBUF' so that it JMP DOOPT ; looks at option for dial ; NXOPT2 LDA CMDBUF+2 LXI H,COMLST CALL COMPARE ;compares list pointed to by HL JC NOTVLD ;carry set = no match ; DOOPT CALL STFCB ;loads command buffer into FCB CALL PROCOPT ;check out the options JMP RSTRT ;go to work ; NOTVLD CALL NVLDMS JMP XPRT ; NVLDMS CALL ILPRT DB '++ Invalid command ++',CR,LF,BELL,0 RET ; FUNCT LDA INTCPT ;get the function key intercept char. ANI 07FH ;strip off any parity PUSH PSW ;save the character for now CALL CLRTST CALL ILPRT DB ' SPECIAL FUNCTION KEY TABLE' DB CR,LF,LF,0 POP PSW ;get the character back CPI ' ' ;see if a printing character JNC FUNCT1 ;if a printing character, show it PUSH PSW CALL ILPRT DB 'CTL-',0 POP PSW ADI 40H ;convert binary to ASCII character ; FUNCT1 CALL TYPE ;show on the CRT CALL ILPRT DB ' current function key intercept character',CR,LF,LF,0 ; ; Shows the functions of the (0-9) keys ; LXI H,FNCTBL-1 ;index into the function key table MVI B,10 ;has ten entries ; FUNCT2 INX H ;next table location MOV A,M ;get the binary function number ADI '0' ;convert binary to ASCII digits CALL TYPE MVI A,' ' CALL TYPE ; FUNCT3 INX H ;next table location MOV A,M ORA A ;see if a binary zero JZ FUNCT5 CPI CR JNZ FUNCT4 CALL ILPRT DB '<CR>',0 JMP FUNCT3 ; FUNCT4 CALL TYPE JMP FUNCT3 ; FUNCT5 CALL CRLF DCR B JNZ FUNCT2 CALL CRLF JMP XPRT ; BYEBYE LDA PMMIMD ;using a PMMI modem? ORA A ;;; CNZ J$GOODBY ;if yes, disconnect DB 0,0,0 ;(PREVENT DOUBLE DISCONNECT) LDA AUTDIAL ;using a Hayes-type modem? ORA A CNZ SMRST ;if yes, disconnect CALL J$GOODBY ;user's custom-area goodbye routine CALL ILPRT DB CR,LF,'<< Exit to CP/M >>',CR,LF,0 JMP EXIT ;return to CP/M ; SMRST MVI B,20 CALL TIMER LXI H,SM$DISC CALL SNDOUT MVI B,20 CALL TIMER MVI A,' ' ; ; If showing the +++ and ATH and ATD, etc. move the three semicolons up ; one line. ; DB 0,0,0 ;;; CALL TYPE LXI H,SM$ATZ CALL SNDOUT ; SMRST1 MVI B,2 CALL RECV JNC SMRST1 RET ; SM$ATZ DB 'ATZ',CR,'$' ; DIR MVI C,CURDSK CALL BDOS STA DISKSAV CALL DRLST LDA DISKSAV MOV E,A MVI C,SELDSK CALL BDOS JMP XPRT ; ERASEF LXI D,CMDBUF ;put cmd line into FCB at 'HL' LXI H,FCB CALL CMDLINE CALL MOVEFCB ;move FCB+16 to FCB LDA FCB+1 CPI ' ' JZ NOTVLD ;go if no file specified LXI D,FCB MVI C,SRCHF CALL BDOS INR A ;0 if file not found JNZ ERAFILE ;ok, go erase CALL ILPRT DB '++ File not found ++',CR,LF,BELL,0 JMP XPRT ; ERAFILE LXI D,FCB MVI C,ERASE CALL BDOS CALL ILPRT DB 'File erased',CR,LF,0 JMP XPRT ; LOGNW LDA NFILFLG ;file open for memory save to disk? ORA A JNZ NORESET ;if yes, do not reset disk drive now LDA CMDBUF+6 ;any disk drive specified? CPI ' ' JNZ LOGNW1 ;if not a blank, exit CALL GETDISK ;if not, use current drive ADI 'A' ;to compensate for next line ; LOGNW1 SUI 'A' CPI 15+1 ;for drives 0-15 JNC NOTVLD ;if more than 15, display error message STA DISKSAV ;store requested drive CALL GETUSER ;pick up current user number MOV B,A ;save it LDA CMDBUF+7 ;get new user number CALL CHRCK ;check the character CALL FNDUSR LDA CMDBUF+8 ;get 2nd digit CALL CHRCK ;check the character CALL FNDUSR+2 ; LOGNW2 CALL SVUSER MVI C,RESET CALL BDOS LDA DISKSAV MOV E,A MVI C,SELDSK CALL BDOS LDA SAVUSR MOV E,A CALL STUSER JMP XPRT ; CHRCK CPI ' ' JZ CHRCK1 CPI ':' ;in case of A: or A1: or A11: (etc.) RNZ ; CHRCK1 POP PSW ;reset the 'CALL' on the stack JMP LOGNW2 ; FNDUSR MVI B,0 ;zero the 'B' reg. for 1st time through CALL NUMCHK ;if neither, see if a valid number MOV C,A ;save MOV A,B ;get save first digit ADD A ;x2 ADD A ;x4 ADD A ;x8 ADD B ;x9 ADD B ;x10 ADD C MOV B,A ;save RET ; SVUSER MOV A,B CPI 15+1 ;user numbers are 0-15 JNC NOTVLD STA SAVUSR RET ; NUMGET LXI D,CMDBUF CALL INBUF LDA CMDBUF+2 ;get number CPI ' ' RZ ; NUMCHK SUI '0' ;remove ascii bias CPI 9+1 RC ;ok if 9 or less POP H ;remove 1st call from the stack POP H ;remove 2nd call from the stack JMP NOTVLD ; GETUSER MVI E,0FFH ;get current user ; STUSER MVI C,USER ;set up BDOS call JMP BDOS ; GETDISK MVI C,CURDSK ;get current drive JMP BDOS ; NORESET CALL ILPRT DB '++ Terminal mode file open ++',CR,LF DB '++ Use WRT or DEL before LOG command ++',CR,LF DB CR,LF,BELL,0 XRA A JMP XPRT ; STSPD CALL ILPRT DB 'Delay between chars. (0-9): ',0 ; NOKYS CALL STAT JZ NOKYS CALL KEYIN CALL TYPE CALL SAVEA SUI '0' CPI 10 JNC NOTVLD STA BYTDLY ; CALL ILPRT DB 'Delay at end of line (0-9): ',0 ; NOKYS1 CALL STAT JZ NOKYS1 CALL KEYIN CALL TYPE CALL SAVEA SUI '0' CPI 10 JNC NOTVLD STA CRDLY ; SPDMSG CALL ILPRT DB CR,LF,'Char. delay (terminal file mode) is: ',0 LDA BYTDLY MOV B,A MOV A,B PUSH H MOV L,A MVI H,0 CALL DECOUT POP H CALL ILPRT DB '0 ms. per character',CR,LF DB 'Line delay (terminal file mode) is: ',0 LDA CRDLY MOV B,A PUSH H MOV L,A MVI H,0 CALL DECOUT POP H CALL ILPRT DB '00 ms. per character',CR,LF,0 JMP XPRT ; SAVEA PUSH PSW CALL ILPRT DB CR,LF,0 POP PSW RET ; STDRV LDA CMDBUF+2 ;get the disk drive SUI 'A' ;convert to binary value CPI 15+1 ;for drives 0-15 JNC NOTVLD MOV E,A MVI C,SELDSK ;select requested drive CALL BDOS LDA CMDBUF+5 ;get user number, if any CPI ' ' ;keep current user area? JZ XPRT SUI '0' ;convert to binary value CPI 1 ;if a '1', could be units or tens JNZ STDRV1 ;if not, numbers stop at 15 so exit LDA CMDBUF+6 ;check for a 2nd digit CPI '0' JC STDRV2 ;if less, not a valid number, ignore SUI '0'-10 ;leave the '10' in as two digits used ; STDRV1 CPI 15+1 ;user areas are 0-15 JNC NOTVLD MOV E,A CALL STUSER JMP XPRT ;back to work ; STDRV2 MVI A,1 JMP STDRV1 ; STTIM CALL SORPTST JNZ NOTVLD CALL ILPRT DB 'Use 0-8 to give baud rate for ''S'' mode ' DB 'time-to-send message,',CR,LF DB 'where 0=110, 1=300, 2=450, 3=600, 4=710, 5=1200, ' DB '6=2400, ',CR,LF,'7=4800 8=9600 and 9=19200 Baud.' DB CR,LF,LF,'Enter value: ',0 CALL NUMGET CPI 9+1 ;only looking for 0-9 answers JNC NOTVLD STA MSPEED CALL STTIM1 JMP XPRT ; STTIM1 CALL SORPTST JNZ STTIM2 CALL ILPRT DB 'Rate for the S mode time-to-send message is set to ',0 JMP STTIM3 ; STTIM2 CALL ILPRT DB 'Modem speed is ',0 ; STTIM3 JMP PRTBAUD ; SORPTST LDA STUPTST ;if setup is 'YES' or PMMIMD is MOV B,A ; 'YES' or autodial modem is 'YES' LDA PMMIMD ; return with zero bit not set ORA B RNZ LDA AUTDIAL ORA B RET ; TGCRC LDA TGLECRC ;allowing CRC/CHECKSUM toggle? ORA A JZ NOTVLD ;if not, exit LDA CRCDFLT ;get present value and switch it CMA STA CRCDFLT CALL TGCRC1 ;show on CRT it has been changed JMP XPRT ; TGCRC1 CALL ILPRT DB 'Mode: ',0 LDA CRCDFLT ;see if set for 'CRC' or 'CHECKSUM' ORA A JZ CHEKMSG CALL ILPRT DB 'CRC',CR,LF,0 RET ; CHEKMSG CALL ILPRT DB 'CHECKSUM',CR,LF,0 RET ; TGRUB LDA TGLERUB ORA A JZ NOTVLD LDA CONVRUB CMA STA CONVRUB CALL TGRUB1 JMP XPRT ; TGRUB1 LDA CONVRUB ORA A JZ NORUBMS CALL ILPRT DB 'Rub is backspace',CR,LF,0 RET ; NORUBMS CALL ILPRT DB 'Rub is rub',CR,LF,0 RET ; TGLOC LDA TGLELOC ORA A JZ NOTVLD LDA LOCNXT CMA STA LOCNXT CALL TGLOC1 JMP XPRT ; TGLOC1 CALL ILPRT DB 'Use ',0 LDA LOCNXT ORA A LDA EXTCHR JZ LOCMSG CALL SHFTYPE DB ' before local command',CR,LF,0 RET ; LOCMSG CALL SHFTYPE DB ' to send local command to remote',CR,LF,0 RET ; TGLF LDA TGLELF ORA A JZ NOTVLD LDA ADDLFD CMA STA ADDLFD CALL TGLF1 JMP XPRT ; TGLF1 CALL ILPRT DB 'LF ',0 LDA ADDLFD ;adding LF after CR? ORA A JNZ LFMSG ;if yes, exit CALL ILPRT DB 'NOT ',0 ; LFMSG CALL ILPRT DB 'sent after CR in "L" or "T" for a disk file',CR,LF,0 RET ; TGTXOFF LDA TGXOFF ORA A JZ NOTVLD CALL ILPRT DB 'Use XOFF testing? (Y/N): ',0 CALL GETANS JC NOCHG3 STA XOFFTST ; NOCHG3 CALL XOFFMSG CALL ILPRT DB CR,LF,'Use XON waiting after <CR> (Y/N): ',0 CALL GETANS JC NOCHG4 STA XONWAIT ; NOCHG4 CALL XONMS LDA XONWAIT ORA A JZ XPRT CMA STA XOFFTST ;do not allow both CALL ILPRT DB 'Therefore ',0 CALL XOFFMSG JMP XPRT ; GETANS LXI D,CMDBUF CALL INBUF LDA CMDBUF+2 ;get answer CPI ' ' CMC ;set the carry flag RZ MOV B,A CPI 'N' MVI A,0 RZ MOV A,B CPI 'Y' MVI A,1 RZ POP PSW ;preserve stack JMP NOTVLD ; XOFFMSG CALL ILPRT DB 'XOFF testing ',0 LDA XOFFTST ORA A JNZ XOTSTON CALL ILPRT DB 'NOT ',0 ; XOTSTON CALL ILPRT DB 'used',0 ; XONMS1 CALL ILPRT DB ' in terminal mode file output',CR,LF,0 RET ; XONMS CALL ILPRT DB 'XON ',0 LDA XONWAIT ORA A JNZ XONMS2 CALL ILPRT DB 'NOT ',0 ; XONMS2 CALL ILPRT DB 'automatically tested after CR',0 JMP XONMS1 ; STUPENT LDA STUPTST ORA A JZ NOTVLD LXI D,CMDBUF+1 CALL J$STUPR LDA AUTDIAL ;using a Hayes-type modem? ORA A JZ XPRT ;if not, exit, otherwise MVI B,'A' ; send 'AT',CR to autodial modem CALL SNDCHR ; to insure its baud rate MVI B,'T' ; matches that just selected CALL SNDCHR MVI B,CR CALL SNDCHR JMP XPRT ; NEWFILE LDA NFILFLG ;file open for disk save? ORA A JZ NFILOP ;if not, show "no file open" message LDA FCB3+1 ;check that file was requested CPI ' ' JZ NFILOP ;if no file, do not erase LXI D,FCB3 ;otherwise erase the old file MVI C,ERASE CALL BDOS XRA A STA NFILFLG ;no file mentioned, reset flags STA SAVEFLG LXI H,FCB3 CALL INITFCB LXI H,BUFFER ;reset flags to bottom of ram just SHLD HLSAV ; to insure they are there JMP XPRT ; WRFIL LDA NFILFLG ;saving memory for a disk file? ORA A JZ NFILOP ;not saving a file, don't bother writing CALL WRFIL1 ;close the file STA SAVEFLG STA WRFLG LXI H,FCB3 CALL INITFCB ;blank out 'FCB' to written file LXI H,BUFFER ;can not be erased SHLD HLSAV ;reset to buffer start for next time JMP XPRT ; WRFIL1 LDA FCB3+1 ;check that file was requested CPI ' ' RZ CALL WRDSK ;write buffer to disk if not empty ; WRFIL2 LXI D,FCB3 ;close the file MVI C,CLOSE CALL BDOS XRA A STA NFILFLG ;file written, reset flags RET ; NFILOP CALL ILPRT DB '++ No File Open ++',CR,LF,BELL,0 JMP XPRT ; ; THIS ROUTINE DISPLAYS THE PHONE NUMBERS IN THE LIBRARY ; NUMPR PUSH H CALL CLRTST CALL ILPRT DB ' Library of Phone Numbers of Remote Systems' DB 0 MVI C,18 ;number of lines to move LXI H,NUMLIB ;address of source memory LXI D,BUFFER ;address of target memory CALL NEWLINE ;start with CRLF STAX D ;+LF INX D ;and bump it ; NUMPR1 INX H ;skip PMMI dialing letter INX H ;and equal sign MVI B,LIBLEN-2 ;number of bytes to move CALL MOVE ;move to buffer CALL SPACES ;2 entries + 3 spaces = 63 characters PUSH H ;save source address PUSH D ;save destination address INX H ;skip next two characters INX H LXI D,(17*LIBLEN) ;get offset of 17 times entry length DAD D ;add it to the source address POP D ;restore destination address MVI B,LIBLEN-2 ;get length of library entry CALL MOVE ;move another entry POP H ;restore source address CALL NEWLINE ;start next line DCR C ;one less line to print JNZ NUMPR1 ;if not finished, do another MVI A,'$' STAX D MVI C,PRINT LXI D,BUFFER ;point to table of numbers to print CALL BDOS CALL CRLF CALL CRLF POP H JMP XPRT ;finished, back to prompt ; NEWLINE MVI A,CR ;puts CRLF at memory pointed by 'DE' STAX D ;store it MVI A,LF ;line feed INX D ;bump pointer STAX D ;store lf INX D ;bump pointer RET ; SPACES MVI A,' ' ;space STAX D INX D ;1 STAX D INX D ;2 STAX D INX D ;3 RET ; COMPARE MOV B,M ;compares 'A' register with list ; COMPLP INX H ;addressed by HL - first element CMP M ;of list must be number of elements JZ VALID ;being compared. returns with DCR B ;carry set if 'A' reg. does not JNZ COMPLP ;contain an element in list STC ; VALID RET ; NXTSCR CALL ILPRT DB 'HIT any KEY to CONTINUE',0 ; NOKEY1 CALL STAT ;get keyboard status JZ NOKEY1 ;keep looping until keypress CALL KEYIN ;gobble up keypress CPI 'C'-40H ;control-c to abort? JNZ CLRTST POP H ;clear stack of return address CALL CRLF ;turn up a blank line JMP XPRT ; CLRTST LDA SCRNTST ORA A JNZ CLRSCR ; LOTSALF MVI A,CR CALL TYPE MVI B,12 MVI A,LF ; LFLOOP CALL TYPE DCR B JNZ LFLOOP RET ; CURPAR CALL CLRTST CALL ILPRT DB ' Current Settings',CR,LF,LF,0 CALL TGCRC1 CALL TGRUB1 LDA LSTTST ORA A JZ NOLIS1 CALL LSTMS ; NOLIS1 CALL STTIM1 CALL ILPRT DB 'Terminal mode file buffer is ',0 LDA NFILFLG ;saving memory for a disk file? ORA A JNZ ACTIVE ;if yes, go say "active" CALL ILPRT DB 'in',0 ;if not, say "inactive" ; ACTIVE CALL ILPRT DB 'active',CR,LF,'Unused portion of buffer is ',0 CALL GETSPC CALL ILPRT DB ' bytes',CR,LF,0 CALL TGLOC1 CALL TGLF1 CALL XOFFMSG CALL XONMS CALL SPDMSG CALL CRLF CALL CRLF CALL CRLF JMP XPRT ; GETSPC LXI D,BUFTOP ;top of memory buffer LHLD HLSAV ;current buffer location XCHG XRA A ;clear the carry bit, if set SUB E MOV L,A MOV A,H SBB D MOV H,A CALL DECOUT ;print the space remaining RET ; ;*********************************************************************** ; DATA AREA ;*********************************************************************** ; COMLST DB 6,'S','R','T','E','L','M' ; ; OPTION TABLE ; OPTBL EQU $ ANSWFLG DB 'A' BCHFLG DB 'B' DISCFLG DB 'D' JMPCMD DB 'J' LOCLFG DB 'L' ORIGFLG DB 'O' QFLG DB 'Q' RSEEFLG DB 'R' SSEEFLG DB 'S' VSEEFLG DB 'V' XITFLG DB 'X' EPRITY DB '0' ;even parity sub-option (only in S or R mode) OPRITY DB '1' ;odd parity sub-option (only in S or R mode) OPTBE EQU $ ;transfer when program initially called. ; ; The following must be in the same order as the table above ; RSTOPT DB 'A','B','D','J','L','O','Q','R','S','V','X','0','1' ; ; The next 14 bytes equal the number of bytes between RECNOB and ; RECNOE. ; RESTSN DB 0,0,0,0,0,0 DW BUFFER DB 0,0,0,0,0,NAK ; RECNOB EQU $ ;start of table marker RCVRNO DB 0 ;\ RECNO DB 0,0 ; \ ERRCT DB 0 ; \ ERRCDE DB 0 ; \ EOFLG DB 0 ; \ 14 bytes between table markers RECPTR DW BUFFER ; / RECINBF DB 0 ; / MAXEXT DB 0 ; / RCNT DB 0,0 ; / DATAFLG DB 0 ;/ BENHERE DB NAK ; RECNOE EQU $ ;end of table marker ; ; Additional 16-bit initialized storage ; CRCVAL DW 0 DIALCT DW 0 HLSAV DW BUFFER HLSAV1 DW PBUFF HLSAV2 DW PBUFF ; ; Additional general purpose initialized storage ; ABTFLG DB 0 ACKFLG DB 0 CRCFLAG DB 0 CRFLAG DB 0 CURRENT DB 52 ;PMMI 300 baud speed value DLYFLG DB 0 ; (defaults to 300) ECHOFLG DB 0 EXACFLG DB 0 FIRSTME DB 0 FNKFLG DB 0 ;function key activity flag FSTFLG DB 0 LISTFLG DB 0 LOCFLG DB 0 MFFLG1 DB 0 MDCTLB DB 07FH NFILFLG DB 0 ONERR DB 0 OPTION DB 0 ORIGSAV DB 0 RNGBKFL DB 0 SAVEFLG DB 0 UARTCT DB ORIGMOD ;for originate mode WRFLG DB 0 XFLG DB 0 CMDBUF DB 80H,0 ;command buffer control area ; ; General purpose unitialized storage area ; DS 128 ;storage area for 'CMDBUF' BGNMS DS 2 TIMFLG DS 1 FLTRFLG DS 1 CHRFLG DS 1 TIMVAL DS 2 QUIKTIM DS 2 DISKNO DS 1 DISKSAV DS 1 DSTORE DS 1 FILECT DS 1 FTYCNT DS 1 MAXRAM DS 1 NAMECT DS 1 NBSAVE DS 2 OLDUSER DS 1 SNDFLG DS 1 SAVUSR DS 1 ; FCB3 DS 33 FCB4 DS 33 FCBBUF DS 15 MFNAM5 DS 12 MFNAM6 DS 12 ;current name DS 100 ;minimum stack depth ; EVNPAGE EQU ($+255)/256*256 ;sets buffers on even page ; ORG EVNPAGE ; STACK EQU EVNPAGE-2 ;store original stack pointer CRCTBL DS 512 ;two tables of 128 bytes each BUFFDSK DS 128 ;buffer for disk save BUFFPNT DS 128 ;buffer for printer BUFFER DS 1024*BUFSIZ ;send/receive file buffer BUFTOP DS 0 ;filled in when length is found PBUFF EQU $ ;printer buffer starts here NAMEBUF EQU $ ;batch-mode filenames buffer ; ; BDOS EQUATES ; RDCON EQU 1 WRCON EQU 2 LIST EQU 5 PRINT EQU 9 RDBUF EQU 10 CONST EQU 11 CPMVER EQU 12 RESET EQU 13 SELDSK EQU 14 OPEN EQU 15 CLOSE EQU 16 SRCHF EQU 17 SRCHN EQU 18 ERASE EQU 19 READ EQU 20 WRITE EQU 21 MAKE EQU 22 REN EQU 23 CURDSK EQU 25 STDMA EQU 26 DSKALL EQU 27 DSKPAR EQU 31 USER EQU 32 FILSIZ EQU 35 BDOS EQU 0005H REIPL EQU 0 FCB EQU 5CH FCBEXT EQU FCB+12 FCBSNO EQU FCB+32 FCBRNO EQU FCB+32 FCB2 EQU 6CH TBUF EQU 80H ; END