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Assembly Source File | 1994-07-13 | 30.4 KB | 904 lines

; MXM-MM3.ASM ; REV EQU 30 ;overlay revision level ; ; MEX Micromodem II/IIe overlay for the APPLE II/II+/IIe; ; written 09/04/84 by Joe Patterson (70235,460) ; adapted from ; ; MEX Apple Super Serial Card / Novation J-Cat overlay ; written 05/18/84 by D. W. Walker ; ALS bank-switching adapted from ; an overlay by James M. Scardelis ; ; Revn: 1.0 04 Sept 84 -- Modified MXO-AP.21 to produce this ; overlay. ; 2.0 09 SEPT 84 -- ADDED TOUCH-TONE DIALING FOR THE ; MICROMODEM IIE (ONLY) ; -- RENAMED TO MXMM-2.ASM FROM MXO-MM10.ASM ; -- ADDED CONTROL PORT 3 JUMP FOR THE ; SOFTCARD (COULD NOT USE MMIIE ON ; SOFTCARD OTHERWISE); ; 3.0 05 Nov 84 -- ADDED "SET ANSWER" COMMAND TO ENABLE ; MICROMODEM TO AUTO-ANSWER ; -- ADDED SUPPORT FOR THE PCPI APPLICARD ; ; ; This overlay is for the MEX--- series of modem programs. It is ; adapted from MXO-AP.21 to work with the APPLE II and the ; Hayes Micromodem II and IIe with either the ALS CP/M CARD ; or the Microsoft Softcard. Data format is 8 bits, no parity, ; 1 stop bit. If you have the Micromodem IIe then answer YES ; to --BOTH-- equates MM and MM2e to turn the speaker on when ; dialing and off when connected. If you have the Micromodem II ; then you must --NOT-- answer yes to the MM2e equate as the ; program will probably bomb out if you do. ; ; Revision 2.0 now supports touch-tone dialing on the Micromodem ; IIe (ONLY) if you answer YES to the MM2E equate. When using ; touch-tone, the comma (,) feature is supported. Inserting a ; comma in the number being dialed, causes a 2 second delay for ; each one used. For example, 555-12,34 causes dialing to pause ; for 2 seconds between digits 2 and 3. This is especially useful ; when waiting for an outside line or a second dial tone. Multiple ; commas can be used. ; ; Revision 3.0 now supports Auto-Answer with the Micromodem (II or IIe). ; Using the SET ANSWER command, will put the Micromodem directly in ; answer mode. At this point, the modem is waiting for the phone to ; ring. When it does ring the modem will answer and listen for a ; carrier from the other end. If no carrier is detected within 15 ; seconds, the it will hang up and wait for another call. If a ; carrier is detected, you will be put back in the MEX command ; mode. To drop into terminal mode after the modem has detected a ; carrier type SET ANSWER;T. The Auto-Answer mode is quite useful for ; unattended operation. Using the READ command, you can put the modem ; in Auto-Answer mode and when a connection is made the rest of the ; commands in the READ file are executed. ; ; This revision (3.0) also supports the PCPI APPLICARD. All features ; of the Micromodem are available. ; ; I have tested this overlay and it seems to work ok, but, if ; anyone finds any let me know and I will try to correct them ; as soon as possible. ; ; ; The SET WAIT command adjusts the time that the dialing ; routines will wait for a connection (carrier), from ; 0 to 25 seconds. ; ; NOTE: Most of the comments from Ron Fowler's MXO-PM10.ASM ; have been omitted here to save space. A copy of that file ; will be very helpful in understanding what's going on here. ; ;------------------------------------------------------------ ; ; Misc equates ; NO EQU 0 YES EQU 0FFH TPA EQU 100H CR EQU 13 LF EQU 10 BELL EQU 7 TAB EQU 9 ESC EQU 27 ; MM EQU YES ;YES FOR HAYES MICROMODEM II MM2E EQU NO ;YES FOR MM2E ONLY (FOR TOUCH-TONE & SPEAKER) ;MUST BE NO IF YOU HAVE THE MICROMODEM II SFTCRD EQU YES ;YES for Microsoft Softcard } choose ALSCRD EQU NO ;YES for ALS CP/M+ card } one only APPCRD EQU NO ;YES FOR PCPI APPLICARD } ; IF SFTCRD POFF EQU 2000H ;Softcard address offset RATE EQU 20 ENDIF ; ; IF YOU ARE USING THE APPLICARD BE SURE TO CHANGE THE RATE EQUATE ; TO REFLECT YOUR CARD'S SPEED. EX. 60=6MHZ, 40=4MHZ. ; IF ALSCRD OR APPCRD POFF EQU 0 RATE EQU 60 ENDIF ; IF MM SLOT EQU 20H ;SLOT FOR MICROMODEM X 10 PORT EQU 0C086H+POFF+SLOT ;BASE CTL/STAT PORT FOR MM MODDAT EQU PORT+1 ;MM DATA PORT MODSTT EQU PORT ;MM STATUS PORT MODCTL EQU PORT ;MM CTL PORT 1 BAUDRP EQU PORT-1 ;MM CTL PORT 2 MODCTL3:EQU PORT-3 ;MM2e CONTROL PORT 3 ; ; MDRCVB EQU 01H ;MM RECIEVE BIT MDRCVR EQU 01H ;MM RECIEVE READY BIT MDSNDB EQU 02H ;MM SEND BIT MDSNDR EQU 02H ;MM SEND READY BIT ; DTR EQU 8FH ;TRANS ENABLE, ORIG., 300 BAUD OFFHK EQU 80H ;OFF-HOOK ONHK EQU 0 ;ON-HOOK SPKRON EQU 00100000B ;MMIIe SPEAKER ON SPKROFF EQU 00000000B ;MMIIe SPEAKER OFF ; CTSMSK EQU 00000000B ;MASK TO TEST FOR CARRIER BRKMSK EQU 60H ;MASK TO SET BREAK ONHOOK EQU 0C085H+POFF+SLOT ;ADDRESS FOR ONHOOK SET OFFHOOK EQU ONHOOK ;OFFHOOK ADDRESS ENDIF ;MM ; ; ; ; MEX service processor stuff ... See MXO-PM10.ASM ; MEX EQU 0D00H ;address of the service processor INMDM EQU 255 ;get char from port to A, CY=no more in 100 ms TIMER EQU 254 ;delay 100ms * reg B TMDINP EQU 253 ;B=# secs to wait for char, cy=no char CHEKCC EQU 252 ;check for ^C from KBD, Z=present SNDRDY EQU 251 ;test for modem-send ready RCVRDY EQU 250 ;test for modem-receive ready SNDCHR EQU 249 ;send a character to the modem (after sndrdy) RCVCHR EQU 248 ;recv a char from modem (after rcvrdy) LOOKUP EQU 247 ;table search: see CMDTBL comments for info PARSFN EQU 246 ;parse filename from input stream BDPARS EQU 245 ;parse baud-rate from input stream SBLANK EQU 244 ;scan input stream to next non-blank EVALA EQU 243 ;evaluate numeric from input stream LKAHED EQU 242 ;get nxt char w/o removing from input GNC EQU 241 ;get char from input, cy=1 if none ILP EQU 240 ;inline print DECOUT EQU 239 ;decimal output PRBAUD EQU 238 ;print baud rate ; ; CONOUT EQU 2 ;simulated BDOS function 2: console char out PRINT EQU 9 ;simulated BDOS function 9: print string INBUF EQU 10 ;input buffer, same structure as BDOS 10 ; ORG TPA ;we begin ; ; DS 3 ;MEX has a JMP START here ; ; The following variables are located at the beginning of the program ; to facilitate modification without the need of re-assembly. They will ; be moved in MEX 2.0. ; PMODEM: DB YES ;yes=PMMI modem \ / These 2 locations are not SMODEM: DB NO ;yes=Smartmodem / \ referenced by MEX TPULSE: DB 'P' ;T=touch, P=pulse (not referenced by MEX) CLOCK: DB RATE ;clock speed x .1, up to 25.5 mhz. 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 ;default time to send character in ;terminal mode file transfer (0-9) ;0=0 delay, 1=10 ms, 5=50 ms, 9=90 ms CRDLY: DB 3 ;end-of-line delay after CRLF in terminal ;mode file transfer for slow BBS systems ;0=0 delay, 1=100 ms, 5=500 ms, 9=900 ms COLUMS: DB 5 ;number of directory columns SETFL: DB YES ;yes=user-defined SET command SCRTST: DB YES ;yes=if home cursor and clear screen ;routine at CLRSCRN DB 0 ;was once ACKNAK, now spare BAKFLG: DB NO ;yes=make .BAK file CRCDFL: DB YES ;yes=default to CRC checking ;no=default to Checksum checking TOGCRC: DB YES ;yes=allow toggling of Checksum to CRC CVTBS: DB NO ;yes=convert backspace to rub TOGLBK: DB YES ;yes=allow toggling of bksp to rub ADDLF: DB NO ;no=no LF after CR to send file in ;terminal mode (added by remote echo) TOGLF: DB YES ;yes=allow toggling of LF after CR TRNLOG: 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 TOGLOC: DB YES ;yes=allow toggling of LOCNXTCHR LSTTST: DB YES ;yes=allow toggling of printer on/off ;in terminal mode. Set to no if using ;the printer port for the modem XOFTST: DB NO ;yes=allow testing of XOFF from remote ;while sending a file in terminal mode XONWT: DB NO ;yes=wait for XON after sending CR while ;transmitting a file in terminal mode TOGXOF: DB YES ;yes=allow toggling of XOFF testing IGNCTL: DB YES ;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 NOCONN: DB 'N'-40H ;^N = Disconnect from phone line LOGCHR: DB 'L'-40H ;^L = Send logon LSTCHR: DB 'P'-40H ;^P = Toggle printer UNSVCH: DB 'R'-40H ;^R = Close input text buffer TRNCHR: DB 'T'-40H ;^T = Transmit file to remote SAVCHR: DB 'Y'-40H ;^Y = Open input text buffer EXTCHR: DB '^'-40H ;^^ = Send next character ; DS 2 ; INCTL1: CALL XSTTIN ;in modem status port RET DB 0,0,0,0,0,0 ;spares if needed ; OTDATA: CALL XDATOUT ;out modem data port RET DB 0,0,0,0,0,0 ;spares if needed ; INPORT: CALL XDATIN ;in modem data port RET DB 0,0,0,0,0,0 ;spares if needed ; MASKR: ANI MDRCVB ! RET ;bit to test for receive ready TESTR: CPI MDRCVR ! RET ;value of receive bit when ready MASKS: ANI MDSNDB ! RET ;bit to test for send ready TESTS: CPI MDSNDR ! RET ;value of send bit when ready ; ; DS 12 ; ; LOGON: DS 2 ;needed for MDM compat, not ref'd by MEX DIALV: JMP PDIAL ;dial digit in A (see info at PDIAL) DISCV: JMP PDISC ;disconnect the modem GOODBV: JMP DUMMY ;called before exit to CP/M INMODV: JMP NITMOD ;initialization. Called at cold-start NEWBDV: JMP PBAUD ;set baud rate NOPARV: DS 3 ;set modem for no-parity PARITV: DS 3 ;set modem parity SETUPV: JMP SETCMD ;SET cmd: jump to a RET if you don't write SET SPMENV: DS 3 ;not used with MEX VERSNV: JMP SYSVER ;Overlay's voice in the sign-on message BREAKV: JMP PBREAK ;send a break ; ; ILPRTV: DS 3 ;replace with MEX function 9 INBUFV: DS 3 ;replace with MEX function 10 ILCMPV: DS 3 ;replace with table lookup funct. 247 INMDMV: DS 3 ;replace with MEX function 255 NXSCRV: DS 3 ;not supported by MEX (returns w/no action) TIMERV: DS 3 ;replace with MEX function 254 ; CLREOS: LXI D,EOSMSG MVI C,PRINT CALL MEX RET ; CLS: LXI D,CLSMSG MVI C,PRINT CALL MEX RET ; ;------------------------------------------------------------ ; ; *** END OF FIXED FORMAT AREA *** ; ;------------------------------------------------------------ ; ; MICROMODEM AND ALS CARD INITIALIZATION ; NITMOD: IF ALSCRD LHLD 1 ;get WBOOT vector LXI D,60H ;offset for 32 entries DAD D ;BIOS "read Apple address" SHLD AR0+1 ;patch read vector INX H INX H INX H ;BIOS "write Apple address" SHLD AW0+1 ;patch write vector ENDIF ; IF MM MVI A,03H CALL XCTLOUT ;RESET MICROMODEM MVI A,15H ;8 DATA BITS 1 STOP NO PARITY CALL XCTLOUT RET ENDIF ;MM ; ; Micromodem send-break routine ; PBREAK: CALL XCTLIN ;get control register PUSH PSW ;save it ORI BRKMSK ;set break bits CALL XCTLOUT ;break line PUSH B LXI B,233 ;wait 233 msec CALL DELAY POP B POP PSW CALL XCTLOUT ;restore control register RET ; ; disconnect the Micromodem (and turn off MMIIe speaker) ; PDISC: PUSH B ; IF MM2E MVI A,SPKROFF CALL XCTL3 ;SPEAKER OFF ENDIF ;MM2E ; MVI A,ONHK CALL XONHOOK ;hang up LXI B,25 ;for 25 msec CALL DELAY MVI A,OFFHK CALL XOFFHK ;pick up again LXI B,20 ;for 20 msec CALL DELAY MVI A,ONHK CALL XONHOOK ;hang up for good POP B RET ; ; wait for BC milliseconds ; DELAY: PUSH D INR B DELAY1: LXI D,3*RATE ;count for 1 msec DELAY2: DCX D ;..may need some tweaking MOV A,E ORA D JNZ DELAY2 ;delay 1 msec DCR C JNZ DELAY1 ;delay another DCR B JNZ DELAY1 POP D ;done, restore DE RET ; ; exit routine ; DUMMY: RET ;we don't need one ; ; ;------------------------------------------------------------ ; ; MICROMODEM DIALING ROUTINES (PULSE AND TOUCH-TONE) ; ;------------------------------------------------------------ ; PDIAL: CPI 254 ;start-dial? JZ STDIAL CPI 255 ;end-dial JZ ENDIAL ; CPI ',' ;SEE IF DIGIT IS ',' JZ DIALCM ;YES CPI '9'+1 ;digits are 0-9 RNC ;too big... SUI '0' RC ;too small.... JNZ DIALIT ;just right... MVI A,10 ;convert zero to 10 pulses ; ; Pulse phone "digit" times ; IF NOT MM2E DIALIT: MOV E,A ;save the digit PUSH B DIGLP: MVI A,ONHK CALL XONHOOK LXI B,65 ;for 65 msec CALL DELAY MVI A,OFFHK CALL XOFFHK ;connect line LXI B,42 ;for 42 msec CALL DELAY DCR E ;pulse again? JNZ DIGLP ;yes, do it MVI B,3 ;300 MSEC BETWEEN DIGITS MVI C,TIMER CALL MEX POP B ;no, exit RET ENDIF ;MM ; ; IF MM2E DIALIT: ADI 30H ;ADD 30H TO DIGIT TO KEEP SPEAKER - PUSH B ;ON AND SEND TONE DIGLP: CALL XCTL3 ;SEND DIGIT LXI B,120 ;NUMBER OF MSEC FOR EACH TONE CALL DELAY MVI A,20H ;TURN OFF TONE CALL XCTL3 MVI B,1 ;100 MSEC BTWEEN DIGITS MVI C,TIMER CALL MEX POP B RET ENDIF ;ENDIF MM2E ; ; ; THIS ROUTINE CONVERTS THE COMMA (,) TO IT'S MICROMODEM DECIMAL ; EQUIVALENT. THE COMMA CAUSES A TWO (2) SECOND DELAY IN ; DIALING BETWEEN ANY 2 DIGITS. ; ; DIALCM: MVI B,20 ;DIGIT IS COMMA - SO WAIT 2 SEC. MVI C,TIMER CALL MEX RET ; ; ; END OF SPECIAL DIALING CONVERSION ROUTINE ; ; ; Start-dial sequence: connect, wait for dial-tone ; STDIAL: CALL ILPRT DB 'Wait...',0 MVI B,25 ;wait 2.5 sec MVI C,TIMER CALL MEX MVI A,DTR ;enable modem CALL XBDOUT ; IF MM2E MVI A,SPKRON CALL XCTL3 ;TURN ON MMIIE SPEAKER ENDIF ;MM2E ; MVI A,OFFHK CALL XOFFHK ;connect phone MVI B,20 ;wait 2 sec MVI C,TIMER CALL MEX ;for dial tone ORA A RET ; ; End-dial sequence ; ENDIAL: MVI E,150 ;SET WAIT TIME TO 15 SEC. MVI A,8DH ;ENABLE MODEM (OFF-HOOK,ORIG.,300 BD) CALL XBDOUT WAITTM EQU $-1 ;patch with SET WAIT command CALL WAIT ORA A ;successfully connected? PUSH PSW ;save the error code JNZ NOTCNK ;no, disconnect MVI A,DTR CALL XBDOUT ;RE-ENABLE MODEM ; IF MM2E MVI A,SPKROFF ;MMIIE SPEAKER OFF CALL XCTL3 ENDIF ;MM2E ; JMP DIALXIT NOTCNK: CALL PDISC ;shut down the modem DIALXIT:POP PSW RET ; ; Time-out routine. Must be called with mask in D reg. ; and number of seconds (times 10) in E reg. ; WAIT: MVI B,1 ;100 ms MVI C,TIMER CALL MEX CALL XDATIN ;READ DATA PORT (SET-UP CARR. DET.) CALL XSTTIN ;IS CARRIER LOST SINCE LAST DATA READ? ANI 4 ;4=NO CARRIER, 0=CARRIER RZ ;active low, so return on 0 MVI C,CHEKCC ;not yet, check for console-abort CALL MEX ;abort? MVI A,3 ;set error code 3 if abort active STC RZ ;return if aborted DCR E ;nope, downcount JNZ WAIT DCR A ;set error=2 (timed out); cy already set RET ;------------------------------------------------------------ ; END OF MICROMODEM DIALING ROUTINES ;------------------------------------------------------------ ; ; Only 300 baud is supported for the Micromodem ; ; IF MM PBAUD: RET ENDIF ;MM ; ; ; Control is passed here after MEX parses a SET command. ; SETCMD: MVI C,SBLANK ;any arguments? CALL MEX JC SETSHO ;if not, go print out values LXI D,CMDTBL ;parse command CALL TSRCH ;from table PUSH H ;any address on stack RNC ;if we have one, execute it POP H ;nope, fix stack SETERR: LXI D,SETEMS ;print error MVI C,PRINT CALL MEX RET ; SETEMS: DB CR,LF,BELL,'SET command error',CR,LF,'$' ; ; SET command table ... note that tables are constructed of command- ; name (terminated by high bit=1) followed by word-data-value returned ; in HL by MEX service processor LOOKUP. Table must be terminated by ; a binary zero. ; ; Note that LOOKUP attempts to find the next item in the input stream ; in the table passed to it in HL ... if found, the table data item is ; returned in HL; if not found, LOOKUP returns carry set. ; CMDTBL: DB '?'+80H ;"set ?" DW STHELP DB 'BAU','D'+80H ;"set baud" DW STBAUD DB 'WAI','T'+80H ;"set wait time" DW STWAIT DB 'ANSWE','R'+80H ;"set answer" DW ANSWER DB 0 ;<<=== table terminator ; ; SET <no-args>: print current statistics ; SETSHO: CALL CARRSH ;show carrier present/not present LXI H,SHOTBL ;get table of SHOW subroutines SETSLP: MOV E,M ;get table address INX H MOV D,M INX H MOV A,D ;end of table? ORA E RZ ;exit if so PUSH H ;save table pointer XCHG ;adrs to HL CALL GOHL ;do it CALL CRLF ;print newline MVI C,CHEKCC ;check for console abort CALL MEX POP H ;it's done JNZ SETSLP ;continue if no abort RET ; GOHL: PCHL ; ; table of SHOW subroutines ; SHOTBL: DW BDSHOW DW WTSHOW DW 0 ;<<== table terminator ; ; SET ? processor ; STHELP: LXI D,HLPMSG MVI C,PRINT CALL MEX RET ; ; The help message ; HLPMSG: DB CR,LF,'SET command, MICROMODEM II/IIE version:',CR,LF DB CR,LF,TAB,'Set Answer - <use CTL-C to abort>' DB CR,LF,TAB,'Only 300 baud supported' DB CR,LF,TAB,'Set Wait 0..25 seconds' DB CR,LF,'$' ; ; SET BAUD processor ; STBAUD: MVI C,BDPARS ;function code CALL MEX ;let MEX look up code JC SETERR ;invalid code CALL PBAUD ;no, try to set it JC SETERR ;not-supported code BDSHOW: CALL ILPRT ;display baud DB 'Baud rate: ',TAB,0 LDA MSPEED MVI C,PRBAUD ;use MEX routine CALL MEX RET ; ; SET ANSWER processor ; ANSWER: CALL ILPRT DB CR,LF,'Micromodem awaiting call........',0 ANSWER1:MVI A,09H ;get ready to answer phone CALL XBDOUT ANSWER2:MVI C,CHEKCC ;check for console abort CALL MEX RZ ;return if aborted CALL XBDIN ;see if phone is ringing ANI 80H JNZ ANSWER2 ;it isn't so, continue to listen CALL ILPRT ;print "modem answering" DB BELL,CR,LF,'Micromodem answering.......',0 MVI A,8BH ;go off-hook and send answer tone CALL XBDOUT MVI E,150 ;wait 15s for carrier on other end PICKUP: MVI B,1 ;100ms MVI C,TIMER CALL MEX CALL XDATIN ;dummy data read CALL XSTTIN ;is there a tone on the other end ? ANI 4 JZ CDET ;jump to "cdet" if carrier detected MVI C,CHEKCC ;check for console abort CALL MEX RZ ;if abort DCR E ;nope, countdown JNZ PICKUP CALL ILPRT ;print "no carrier" DB CR,LF,'No carrier - waiting for another call.....',0 JMP ANSWER1 ;continue waiting for a call CDET: CALL ILPRT DB BELL,CR,LF,'Carrier detected......',0 RET ; ; ; SET WAIT processor ; STWAIT: MVI C,EVALA ;get new time from input CALL MEX MOV A,H ;check for valid input ORA A JNZ SETERR MOV A,L CPI 26 JNC SETERR ;25 is maximum wait RLC ;x 2 MOV C,A RLC ;x 4 RLC ;x 8 ADD C ;x 10 STA WAITTM WTSHOW: CALL ILPRT DB 'Wait time: ',TAB,0 MVI A,0 ;clear HL MOV L,A MOV H,A LDA WAITTM SBLOOP: SUI 10 ;div. by 10 JC WTDSP INR L JMP SBLOOP WTDSP: MVI C,DECOUT CALL MEX CALL ILPRT DB ' seconds',CR,LF,0 ; ; Compare next input-stream item in table @DE; CY=1 ; if not found, else HL=matched data item ; TSRCH: MVI C,LOOKUP ;get function code JMP MEX ;pass to MEX processor ; ; Print in-line message ... blows away C register ; ILPRT: MVI C,ILP ;get function code JMP MEX ;go do it ; ; Sign-on message ; SYSVER: CALL NITMOD LXI D,SOMESG MVI C,PRINT CALL MEX CARRSH: LXI D,NOMESG ;tell about carrier CALL CARRCK ;check for it MVI C,PRINT CNZ MEX ;print the "NO" if no carrier LXI D,CARMSG ;print "carrier present" MVI C,PRINT CALL MEX RET ; ; IF SFTCRD SOMESG: DB 'Apple II w/Microsoft Softcard',CR,LF ENDIF ;SFTCRD ; ; IF ALSCRD SOMESG: DB 'Apple II w/ALS CP/M 3.0 Card',CR,LF ENDIF ;ALSCRD ; IF APPCRD SOMESG: DB 'Apple II w/PCPI Applicard',CR,LF ENDIF ;APPCRD ; IF MM2E DB 'and Hayes Micromodem IIe',CR,LF,'$' ENDIF ;MM2E ; IF NOT MM2E DB 'and Hayes Micromodem II',CR,LF,'$' ENDIF ;NOT MM2E NOMESG: DB 'no $' CARMSG: DB 'carrier present',CR,LF,'$' ; ; CHECK THE MICROMODEM FOR CARRIER PRESENT (NZ=NO) ; CARRCK: CALL XDATIN CALL XSTTIN ANI 4 RET ; ; Newline on console ; CRLF: MVI A,CR CALL TYPE MVI A,LF ;fall into TYPE ; ; type char in A on console ; TYPE: PUSH H ;save 'em PUSH D PUSH B MOV E,A ;align output character MVI C,CONOUT ;print via MEX CALL MEX POP B POP D POP H RET ; ; strings to clear-to-end-of-screen, and clear-screen ; EOSMSG: DB ESC,'Y$' ;clear to end-of-screen CLSMSG: DB ESC,'*$' ;clear whole screen ;------------------------------------------------------- ; Apple I/O ;------------------------------------------------------- IF SFTCRD XDATOUT STA MODDAT ! RET XCTLOUT STA MODCTL ! RET XBDOUT STA BAUDRP ! RET XONHOOK STA ONHOOK ! RET XOFFHK STA OFFHOOK ! RET XCTL3 STA MODCTL3 ! RET XSTTIN LDA MODSTT ! RET XDATIN LDA MODDAT ! RET XCTLIN LDA MODCTL ! RET XBDIN LDA BAUDRP ! RET ENDIF IF ALSCRD ; ; ALS card routines require assembly with MAC ; (supplied with the ALS CP/M card) ; PUT MACRO ADDR PUSH H LXI H,ADDR JMP APWRT ENDM XDATOUT PUT MODDAT XCTLOUT PUT MODCTL XBDOUT PUT BAUDRP XONHOOK PUT ONHOOK XOFFHK PUT OFFHOOK XCTL3 PUT MODCTL3 APWRT: PUSH D PUSH B AW0: CALL $-$ ; patch vector here POP B POP D POP H RET GET MACRO ADDR PUSH H LXI H,ADDR JMP APRD ENDM XSTTIN GET MODSTT XDATIN GET MODDAT XCTLIN GET MODCTL XBDIN GET BAUDRP APRD: PUSH D PUSH B AR0: CALL $-$ ; patch vector here POP B POP D POP H RET ENDIF ; ; PCPI Applicard I/O routines ; IF APPCRD ; RDBYTE: EQU 0FFE0H ;read 1 byte from apple (A=byte) WRBYTE: EQU 0FFE3H ;write 1 byte to apple (C=byte) RDWORD: EQU 0FFE6H ;read 2 bytes from apple (DE=word) WRWORD: EQU 0FFE9H ;write 2 bytes to apple (DE=word) PEEK: EQU 6 ;command POKE: EQU 7 ;command ; XDATOUT:PUSH D LXI D,MODDAT JMP APWRT ; XCTLOUT:PUSH D LXI D,MODCTL JMP APWRT ; XBDOUT: PUSH D LXI D,BAUDRP JMP APWRT ; XONHOOK:PUSH D LXI D,ONHOOK JMP APWRT ; XOFFHK: PUSH D LXI D,OFFHOOK JMP APWRT ; XCTL3: PUSH D LXI D,MODCTL3 ; APWRT: PUSH B MOV B,A MVI C,POKE CALL WRBYTE CALL WRWORD MOV C,B CALL WRBYTE POP B POP D RET ; XSTTIN: PUSH D LXI D,MODSTT JMP APRD ; XDATIN: PUSH D LXI D,MODDAT JMP APRD ; XCTLIN: PUSH D LXI D,MODCTL JMP APRD ; XBDIN: PUSH D LXI D,BAUDRP ; APRD: PUSH B MVI C,PEEK CALL WRBYTE CALL WRWORD CALL RDBYTE POP B POP D RET ; ENDIF ;Applicard ; ;------------------------------------------------------------ ; END