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Assembly Source File | 1994-07-13 | 64.1 KB | 2,473 lines

; title 'disk7 -- cp/m file manipulation program' VERS EQU 7$6 ;version number.. MONTH EQU 08 ;..month.. DAY EQU 25 ;..day.. YEAR EQU 83 ;..and year. ; copyright (c) 1983 by frank gaude'. all rights reserved. released to the ; public domain for non-commercial use. monetary gain in not permitted under ; any circumstance by individual, partnership, or corporation. ; 'disk7' is based on common ideas presented in 'cleanup', 'wash', and ; 'sweep', written by ward christensen, michael karas, and robert fisher, ; respectively. existence of these programs generated impetus for writing ; 'disk7'. ; a single-screen menu is provided after entering 'disk7' followed by cursor ; return. wildcard filenames and optional drive declaration are permitted. ; disk7 [d:]*.asm shows only 'asm' files on [selected] or current drive. ; any other than a command key causes the menu to reappear. full error ; trapping and command cancellation recovery is provided. cancellation ; occurs by entering a <return>, if no other entry has been made and ; execution has not begun. ; display is circular, single-file columnar, with crt console cursor moved ; 'forward' with <space> or <return>, and 'reverse' with 'b'. drive ; remaining storage in kilobytes is automatically displayed whenever disks ; are logged-in or menu recalled. if a user area with no files is logged-in, ; new drive/user area prompt is presented. ; command functions of 'disk7' are: ; c - copy file to another drive/user with automatic 'crc' verification. ; format is --> to drive/user: 'd[nn]<return>' where 'd' is drive and ; 'n' is optional user area. a 'colon' after the drive or user area ; is optional. d, d:, dn, dn:, dnn, dnn: are all valid entries. ; (system reset occurs for disk change.) prompts to erase already ; existing file on other drive or in other user area. ; d - delete file from disk, prompts for certainty. ; f - file size in kilobytes, rounded up to next disk allocation block. ; j - jump 'forward' 15 file names. used to quickly go through lengthy ; disk directories. ; l - log-in new drive/user for display and reset system for disk ; changes. format is same as 'c' for copy. ; m - mass copy of tagged files to another drive/user area. auto-erase ; occurs if file(s) already exist(s). prompts for desired drive/user ; area as with 'c' and 'l'. mass copy function can be repeated ; without re-tagging files. simply enter 'm' again to copy ; previously tagged files to another drive/user area. ; (entering 'm' without any files tagged causes cursor to move to ; directory beginning.) ; p - print tagged text files to cp/m list device (printer), any ; keypress cancels. allows entry of a date/title (up to 30 char), ; and first page printed (1-255). Rainbow 100 w/LA50RA printer left ; margin program default is 2 ; r - rename file on current drive, only cp/m convention names permitted. ; s - stat of requested drive, shows remaining disk storage in kilobytes. ; t - tag file for inclusion for mass copy to another drive/user area. ; file remains tagged until either a disk log-in or 'u' is used to ; untag it. a '*' marker is placed on the tagged filename cursor ; line as a reminder the file is tagged for mass copy. tagged file ; size is shown, totals accumulated and presented in parentheses. ; u - untag file previously tagged for mass copy. 'u' can be used to move ; cursor 'forward' for quick untagging of files. logging-in drive ; again with 'l' also quickly untags all files. ; v - view text file on console, with pagination and single-line turn-up. ; <crtl-x> or <esc> cancels function. only 'ascii' characters are ; processed. ; w - write ascii file to cp/m logical punch device, any keypress ; cancels. ; x - exit to cp/m (to ccp without rebooting, or optionally warmboot if ; program assembled with 'warmboot' equate set true.) <esc> can be ; used also to exit to cp/m. ; 'disk7' is an alternative to 'pip' and 'sweep'. conveniently, it can be ; added as a subroutine to application programs that require file ; manipulation but without returning to the cp/m operating system. ; 'disk7' loads fast and copies files at near theoretical speed using ; an 8-bit 'crc' table-driven ccitt recommended routine. the compact ; menu makes operation essentially self-documenting. the program occupies ; approximately 4.5k bytes of memory. ; installation requires setting maximum allowed drive to be logged-in or ; copied to, and deciding if to warmboot or not on returning to cp/m. these ; equate options plus several others are at program 'starting definitions' ; below. ; disk7 works with cp/m 2.2 only, with 24k or more of ram. file copy ; functions are faster with large amounts of ram. ; please report bugs noted or improvements incorporated to frank gaude' ; at 10925 stonebrook drive, los altos hills, ca 94022. telephone is ; 415/941-2219, 6pm to 10pm daily, pacific time. ; latest changes ; 08/25/83 customize for Rainbow 100 video attributes. customize for ; LA50RA printer paginated mass print mods. changed ('j') to 15 files. ; (76c->rb3) jrf ; 08/19/83 added paginated mass print mods (76c) jon kleinhans ; 06/30/83 updated menu to reflect new commands. (76c) fg ; 06/19/83 tagged file summation displayed right justified. added new ; command ('j') to jump forward 22 files. (76a) fg ; 06/04/83 added 'ani 7fh' to 'v' read function to force text to ascii. ; also added 'w' command to output ascii text to cp/m punch device (tnx to ; bill silvert for recommending these changes). file size now accumulated ; as tagged ('t') and presented in parentheses on cursor line. (76) fg ; starting definitions TRUE EQU 0FFH ;define true and.. FALSE EQU 0 ;..false. WARMBOOT EQU FALSE ;set true to warmboot on exit CPM$BASE EQU 0000H ;cp/m system base.. TPA EQU 100H ;..'transient program area' start.. CCP EQU 800H ;..and 'ccp' length in bytes. LPS EQU 24-2 ;lines-per-screen for 'view' pagination GET EQU 0FFH ;get user area e-reg value ; ascii definitions BELL EQU 07H ;ascii bell character.. BS EQU 08H ;..backspace.. LF EQU 0AH ;..linefeed.. CR EQU 0DH ;..carriage return.. CAN EQU 18H ;..cancel.. EOFCHAR EQU 1AH ;..end-of-file.. ESC EQU 1BH ;..and escape character. ;---------------------------------------------- ; DEC Rainbow 100 Equates ; clear screen & home 27 [ 2 J 27 [ H ; normal video 27 [ 0 m ; bold video 27 [ 1 m ; reverse video 27 [ 7 ; 1 m ; reverse blink video 27 [ 7 ; 1 ; 5 m ; bold blink video 27 [ 5 ; 1 m RAIN1 EQU 27 RAIN2 EQU '[' RAIN3 EQU '2' RAIN4 EQU 'J' RAIN5 EQU 'H' RAIN6 EQU '0' RAIN7 EQU '1' RAIN8 EQU '5' RAIN9 EQU '7' RAIN10 EQU ';' RAIN11 EQU 'm' ;------------------------------------------------- ; even-page base of filename ring storage RING SET LAST+100H AND 0FF00H ; assembly origin (load address) and program beginning SOURCE ORG CPM$BASE+TPA JMP DISK7 ; highest disk drive letter in system MAXDR DB 'C' ; 'a', 'b', 'c', etc. ; concealed copyright notice DB ' Copyright (c) 1983 by Frank Gaude''' DB ' All Rights Reserved' ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; Equates for MASS PRINT ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FF EQU 0CH ; form feed TAB EQU 09H ; tab SPACE EQU 20H NULCHR EQU 00H ASCBIAS EQU 30H ZERO EQU 00H PAGEWID EQU 81 ; 0--80 = 81 Rainbow 100 only PAGELEN EQU 65 ; 0--65 = 66 HOMELINE EQU 3 ; start position of print head on power up. TOPMRGN EQU 1 ; blank lines from home position to HEADER. ; TOPMRGN must be => one HEADMRGN EQU 2 ; blank lines between HEADER and text. ; HEADMRGN must be => one BOTMRGN EQU 2 ; blank lines between text and end of page. LASTLINE EQU PAGELEN-HOMELINE-BOTMRGN ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; Storage for MASS PRINT ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DECDIG DB 100,10,1 PAGENO DS 1 LINENO DS 1 COLNO DS 1 STRTPG DB 1 ; start page number, initially = 1 STARTED DB 0FFH ; started flag is zero after started LEFTMRGN DB 2 ; default for Rainbow 100 w/LA50RA printer TABSIZE DB 8 ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; BEGINNING OF PRINTER ROUTINES. 7/28/83 ; Must change the "P" command to call MASSLST in the command scan. ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MASSLST ; get date and/or title for header line. LXI H,CMDBUF MVI B,32 ; # of blankes to .. CALL FILL ; ..clear 'cmdbuf'. CALL BLBLNK CALL ILPRT ;new name prompt DB CR,LF,' ' DB ' ..............................',0 CALL NORM CALL BOLD CALL ILPRT DB CR,LF,'Date/Title, up to 30 char: ',0 CALL NORM LXI D,CMDBUF ;command line location MVI C,RDBUF ;console read-buffer function CALL BDOS LXI H,PTITLE XCHG ; DE = destination pointer LXI H,CMDBUF+2 ; HL = source pointer MVI B,30 CALL MOVE ; move title to from CMDBUF to PTITLE ; skip first 2 cells of CMDBUF ENT2 MVI A,2 STA LEFTMRGN ; CALL BOLD ; CALL ILPRT ; DB CR,LF,'Left Margin column number, 0-9 (default ',0 ; LDA LEFTMRGN ; ADI ASCBIAS ; CALL TYPE ; CALL ILPRT ; DB '): ',0 ; CALL NORM ; CALL KEYIN ; CPI CR ; JZ ENT4 ; SUI ASCBIAS ; STA LEFTMRGN ENT4 MVI A,8 STA TABSIZE ; CALL BOLD ; CALL ILPRT ; DB CR,LF,'Tab Size, 1-9 (default ',0 ; LDA TABSIZE ; ADI ASCBIAS ; CALL TYPE ; CALL ILPRT ; DB '): ',0 ; CALL NORM ; CALL KEYIN ; CPI CR ; JZ ENT6 ; SUI ASCBIAS ; JZ ENT6 ; STA TABSIZE ENT6 LXI H,CMDBUF MVI B,32 ; # of blankes to .. CALL FILL ; ..clear 'cmdbuf'. MVI A,0FFH STA STARTED ; reset started flag, zero = started CALL BOLD CALL ILPRT DB CR,LF,'First Page to be printed, 1-255 (default 1): ',0 CALL NORM LXI D,CMDBUF MVI C,RDBUF CALL BDOS LXI H,CMDBUF+4 ; point to third char of start page CALL BININT ; convert 3 char ascii to binary integer STA STRTPG CALL ILPRT DB CR,LF,0 ; print files tagged using the 't' command. LXI H,RING+12 ;get 1st possible tag location SHLD RINGPOS JMASS$LP MVI A,'*' CMP M INX H ;get in filename synchronization SHLD RINGPOS JZ MPRINT ;print filename with tag character (*) ; re-entry point for next file mass print NXTFILE LHLD RINGPOS ;re-entry point for next file mass-copy XCHG ;at ring.. LHLD RINGEND ;..end yet? CALL CMPDEHL ; (compare present position with end) JZ JMF$EXIT ;yes, jump to beginning of ring. LHLD RINGPOS JMP JMASS$LP ;no, loop 'till thru ring list. JMF$EXIT XRA A ;reset flags.. STA FIRST$M ;..for.. CMA ;..next.. JMP CMDLOOP ;jump to 'ring' beginning ; - - - - - - - - - - - - - - MPRINT XRA A STA LINENO STA COLNO MVI A,1 STA PAGENO MVI A,LIST ;out to 'list' device function STA CON$LST ;save bdos function ; output file to console/printer/punch CALL RINGFCB ;position name to 'fcb' LXI D,TBUF ;set to use default cp/m dma buffer MVI C,SETDMA ;address set function CALL BDOS LXI H,S$FCB+12 ;set pointer to source extent field CALL INITFCB ;fix-up 'fcb' before use LXI D,S$FCB ;open file for reading MVI C,OPEN ;file open function code CALL BDOS INR A ; 0ffh --> 00h if open okay JNZ JZEROCR ;if not okay, show error message. CALL RVBLNK CALL ILPRT DB '++ UNABLE TO OPEN FILE ++',0 CALL NORM JMP NXTFILE ;NEUTRAL JZEROCR CALL HEADER ; print filename, date/title and page number XRA A ;zero file 'current record' field STA S$FCB+32 JREADMR LXI D,S$FCB ;point at file 'fcb' for reading MVI C,READ ;record read function CALL BDOS ORA A ;check if read okay JNZ PRT15 ;NEUTRAL ;eof? LXI H,TBUF ;point at record just read MVI B,128 ;set record character counter to output JREADLP MOV A,M ;get a character ANI 7FH ;force to 'ascii' CPI EOFCHAR ;see if end-of-file JZ PRT15 ;NEUTRAL ;back to ring loop if 'eof' CPI FF ; is it a form feed CZ NEWPAGE ; in case printer cant handle form feed CPI TAB ; is it a tab CZ TABS CPI LF ; is it a line feed CZ NEWLINE CPI NULCHR JZ PRT10 CALL PROUT ; not a special character so print it LDA COLNO INR A ; increment column number STA COLNO PRT10 LDA COLNO CPI PAGEWID ; check for end of line CP NEWLINE LDA LINENO CPI LASTLINE ; check for end of page CP NEWPAGE LDA LINENO CPI 0 ; print header if new page CZ HEADER PUSH B PUSH H MVI C,CONST ; console status function CALL BDOS POP H POP B ORA A ; check if character there JZ PRT14 CALL NEWPAGE ; if key pressed, eject page and abort JMP CMDLOOP PRT14 INX H ;if not, bump buffer pointer. DCR B ;all bytes of record sent yet? JNZ JREADLP ;no, more in present record. JMP JREADMR ;yes, get next record. PRT15 CALL NEWPAGE ; eject paper to end of last page JMP NXTFILE ; - - - - - - - - - - - - - - - - - - HEADER PUSH PSW PUSH B PUSH H LDA PAGENO LXI H,STRTPG CMP M ; is page number => start page ? JM HEAD0 XRA A STA STARTED ; zero if started STA STRTPG ; clear start page for next file HEAD0 MVI B,TOPMRGN HEAD1 CALL NEWLINE ; minimum of one line DCR B JNZ HEAD1 CALL PRTMSG DB 'Filename: ',0 ; print filename LDA LEFTMRGN LXI H,TABSIZE ADD M ; TABS subtracts (LEFTMRGN-1) SUI 11 ; 11 = max filename length +3 STA COLNO ; preset column number for title tab LXI H,RINGPOS+4 MVI B,8 HEAD2 MOV A,M CPI SPACE CNZ PR2OUT INX H DCR B JNZ HEAD2 ; print dot MVI A,'.' CALL PROUT ; print file type MVI B,3 CALL PRTMEM CALL TABS ; tab out to title CALL PRTMSG ; minimum space between filename and title DB ' ',0 CALL PRTMSG ; print date/title PTITLE DB ' ',0 ; storage for title CALL PRTMSG DB ' Page ',0 LDA PAGENO ; convert binary page number to ascii LXI H,ASCPGNO CALL ASCINT ; MVI B,3 ; print page number ( This works also. ) ; LXI H,ASCPGNO ; CALL PRTMEM CALL PRTMSG ; print page number ASCPGNO DB '000',0 CALL NEWLINE ; need CR,LF after header line MVI B,HEADMRGN HEAD8 CALL NEWLINE ; minimum of one line DCR B JNZ HEAD8 POP H POP B POP PSW RET ; - - - - - - - - - - - - - - - - - PRTMSG ; same as ILPRT except to printer XTHL ;save hl, get msg pointer. JILPLP MOV A,M ;get character ANI 7FH ;strip type bits CALL PROUT ;TYPE ;show on console INX H ;point to the next character and.. MOV A,M ORA A ;..test for end-of-text. JNZ JILPLP XTHL ;set hl-pair and.. RET ;..return past message. ; - - - - - - - - - - - - - - - - - ; Print from memory locations ; B == number of cells ; HL points to first cell PRTMEM MOV A,M CALL PROUT INX H ; next character DCR B JNZ PRTMEM RET ; - - - - - - - - - - - - - - - - - PROUT CALL PRINT CALL TYPE RET PR2OUT CALL PRINT CALL TYPE LDA COLNO INR A ; increment column number STA COLNO RET PRINT PUSH PSW PUSH B PUSH H PUSH D MOV E,A ;**** put character for 'bdos' call MVI C,LIST ; list function call 5 LDA STARTED ; check started flag ORA A CZ BDOS ; send character if started POP D POP H POP B POP PSW RET ; - - - - - - - - - - - - - - - - - NEWPAGE PUSH B LDA LINENO MOV B,A ; B == line number MVI A,PAGELEN SUB B MOV B,A ; B == number of lines left INR B ; need more to get correct page eject INR B NEWPG2 DCR B ; chalk off one line JZ NEWPG4 ; done if B = 0 CALL NEWLINE ; eject one line JMP NEWPG2 ; repeat line feeds until B = 0 NEWPG4 LDA PAGENO INR A ; increment page number STA PAGENO XRA A STA LINENO ; set line number to zero POP B RET ; with nul char in A reg ; - - - - - - - - - - - - - - - - - NEWLINE PUSH B PUSH H MVI A,CR CALL PROUT MVI A,LF CALL PROUT LDA LINENO INR A ; increment line number STA LINENO LDA LEFTMRGN INR A MOV B,A LXI H,COLNO MVI M,0 ; preset column to zero MVI A,SPACE LEFT2 DCR B JZ LEFT4 CALL PROUT ; output a space for left margin INR M ; increment column number JMP LEFT2 LEFT4 POP H POP B XRA A ; nul char into A reg RET ; - - - - - - - - - - - - - - - - - - ; Expand tabs to spaces. TABS PUSH B PUSH H TABS2 MVI A,SPACE CALL PROUT ; output a space (at least one space) LDA COLNO INR A ; increment column number STA COLNO CPI PAGEWID ; check for end of line JP TABS6 ; stop if zero or positive LXI H,LEFTMRGN SUB M ; subtract LEFTMRGN LXI H,TABSIZE TABS4 SUB M ; subtract TABSIZE JZ TABS6 ; on a tab position if zero, finished JM TABS2 ; not on a tab position JMP TABS4 TABS6 POP H POP B XRA A ; nul char into A reg RET ; - - - - - - - - - - - - - - - - ; Convert binary integer in A reg to a three character ascii decimal integer. ; Store the ascii result in memory pointed to by HL. ; Range 000 to 255 ASCINT PUSH PSW PUSH B PUSH D PUSH H XCHG ; DE points to ASCII storage cells LXI H,DECDIG ; HL points to DECIMAL WEIGHT (100,10,1) MVI B,3 ; 3 ascii characters for 000 to 255 ASCZERO XCHG MVI M,'0' ; preset digit to ascii zero XCHG COMPDIG CMP M JM NXTDIG ; go to next dig if binary < decimal weight SUB M ; subtract if binary number => decimal weight XCHG INR M ; increment the stored ascii character XCHG JMP COMPDIG NXTDIG INX D ; point to next storage cell INX H ; point to next decimal weight DCR B ; check for last of 3 digits JNZ ASCZERO POP H POP D POP B POP PSW RET ; - - - - - - - - - - - - - - - - ; Convert 3 char ascii integer to a binary integer in A reg. ; On entry, HL points to 3 character ascii integer ; At exit, A reg contains binary integer BININT PUSH B PUSH D PUSH H XRA A MOV C,A ; zero binary number in C LXI D,DECDIG+2 ; point to dec 1 (100,10,1) MVI B,3 ; 3 ascii digits NXTCHR MOV A,M ; get ascii SUI ASCBIAS ; ascii to binary JM INCPTR ; skip if < 0 CPI 10 JP INCPTR ; skip if > 9 SCALE PUSH B PUSH PSW MOV C,A ; put binary into C XCHG MOV A,M ; get decimal digit XCHG MOV B,A ; B = dec digit for multiply (100,10,1) POP PSW ; retrieve binary SCALE2 DCR B JZ SCALE3 ADD C JMP SCALE2 SCALE3 POP B ; get old binary in C ADD C ; add old binary to new binary MOV C,A ; store updated binary DCX D ; point to next larger dec digit (100,10,1) INCPTR DCX H ; point to next ascii digit DCR B JNZ NXTCHR MOV A,C ; put binary into A reg for return POP H POP D POP B RET ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; END OF PRINTER ROUTINES. ; . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ; start of program DISK7 IF NOT WARMBOOT LXI H,0 ;clear hl-pair then.. DAD SP ;..add cp/m's stack address SHLD STACK ENDIF ;not warmboot LXI SP,STACK ;start local stack CALL HELP ;show 'menu' MVI E,GET ;determine.. CALL GET$USR ;..user area then.. STA C$U$A ;..store as current and.. STA O$USR ;..as original for exit. LDA FCB ;default drive? ORA A JZ EMBARK ;if so, branch. DCR A STA C$DR ;store 0 --> 'a', 1 --> 'b',etc. CALL SET$DR ;select requested drive as current ; determine if specific file(s) requested -- show remaining storage EMBARK CALL FRESTOR ;get bytes remaining on drive (decode default) LDA FCB+1 ;check if a filename was entered CPI ' ' ;filename a space? JNZ PLUNGE ;no, name was entered. LDA FCB+9 ;filetype also space? CPI ' ' ;if so, then.. JNZ PLUNGE LXI H,JOKER ;..treat as '*.*' with 'joker'.. LXI D,FCB+1 ;..loaded here. MVI B,11 ; # of characters to move CALL MOVE ;set field to *.* ; build 'ring' with filename positioned in default 'fcb' area PLUNGE MVI C,SETDMA ;initialize dma address.. LXI D,TBUF ;..to default buffer. CALL BDOS XRA A ;clear search 'fcb'.. STA FCBEXT ;extent byte.. STA FCBRNO ;..and record number. CMA STA CANFLG ;make cancel flag true LXI D,FCB ;default 'fcb' for search.. MVI C,SRCHF ;..of first occurrence. CALL BDOS INR A ; 0ffh --> 00h if no file found JNZ SETRING ;if found, branch and build ring. STA CANFLG ;make log-cancel toggle false CALL ILPRT ;else say none found, fall thru to log. DB CR,LF,0 CALL RVBLNK CALL ILPRT DB '++ NO FILE FOUND ++',0 CALL BLBLNK CALL ILPRT DB CR,LF,LF,0 DB ' ---> ',0 CALL NORM ; l o g ; select drive and user area (system reset for disk change on-the-fly) LOG CALL BOLD CALL ILPRT ;prompt to get drive/user selection DB BS,'Log-in drive/user: ',0 CALL NORM CALL DEF$D$U LDA R$U$A ;establish requested area.. STA C$U$A ;..as current area. CALL SET$USR CALL RESET ;reset disk system, make requested current. MVI A,' ' ;set default 'fcb' to look like *.* STA FCB+1 STA FCB+9 LXI H,0 ;initialize tagged.. SHLD TAG$TOT ;..file size accumulator. CALL ILPRT DB CR,LF,LF,0 ;fresh line and.. JMP EMBARK ;..restart. ; routine to define current drive and user area with full error trapping. ; (check validity of user area entry first, then drive validity, then proceed ; with implementation.) DEF$D$U LXI H,CMDBUF+2 MVI B,7 ; # of blanks to.. CALL FILL ;..clear 'cmdbuf'. LXI D,CMDBUF ;get drive/user selection from.. MVI C,RDBUF ;..console buffer read. CALL BDOS LDA CMDBUF+1 ;if only a.. ORA A ;..cursor return, cancel.. JZ COMCAN ;..log function. CALL CONVERT ;make sure alpha is upper case XRA A ;initialize.. STA R$U$A ;..user area to zero. LDA CMDBUF+3 ; 1st digit of user area? CPI ':' ;allow ':' after drive declaration JZ SETEXIT CPI '0' ;no valid user area request.. JC SETEXIT ;..then to new drive and ring list. CPI '9'+1 JNC ERRET ;error, not a user area. SUI 30H ;convert to binary and.. CPI 1 ;..test if 10's digit. JNZ SETUSER ;if none, then set user area now. LDA CMDBUF+4 ;a second user area digit? CPI ':' ;allow ':' here JZ SETUONE CPI '0' ;test for 1's digit JC SETUONE CPI '5'+1 ;if user area >15, go.. JNC ERRET ;..error msg, show file line. SUI 30H-10 ;make 1 --> 11, 2 --> 12, etc. STA R$U$A ;save as 'requested user area' here.. JMP SETEXIT SETUONE MVI A,1 ;set to user area 'one' SETUSER MOV B,A LDA CMDBUF+4 CPI ':' ;double dot (colon)? JZ DDPASS CPI '0' ;if >19 user area, go error msg. JNC ERRET DDPASS MOV A,B STA R$U$A ;..and here. SETEXIT LDA MAXDR ;check if system maximum and.. INR A MOV B,A LDA CMDBUF+2 ;..requested drive are compatible. CMP B ;if input too big.. JNC ERRET ;..or.. MVI B,'A'-1 ;..too.. CMP B ;..small, show.. JC ERRET ;..error msg. SUI 'A'-1 ;ready for fcb use STA FCB ;store 1 --> a:, 2 --> b:, etc. DCR A STA R$DR ;ready for 'login' request RET ; error return and recovery from command cancellation ERRET CALL ILPRT DB CR,LF,0 CALL RVBLNK CALL ILPRT DB '++ Drive/User Entry Error ++',0 CALL NORM CALL ILPRT DB BELL,0 COMCAN LXI SP,STACK ;reset stack.. LDA CANFLG ORA A ;..from.. CZ CRLF JZ PLUNGE JMP NEUTRAL ;..error/command abort. ; e x i t ; return to cp/m ccp CPM$CCP LDA O$USR ;get and set original.. CALL SET$USR ;..user area and.. LXI D,TBUF ;..tidy up.. MVI C,SETDMA ;..before going home. CALL BDOS CALL CRLF IF WARMBOOT JMP CPM$BASE ENDIF ;warmboot IF NOT WARMBOOT LHLD STACK ;put cp/m's pointer.. SPHL ;..back to 'sp'. RET ;return to cp/m ccp ENDIF ;not warmboot ; h e l p (menu) HELP CALL CLS ;show menu but 'clear-screen' first CALL NORM ;reset to normal video if not.... CALL ILPRT DB CR,' DISK ',VERS/10+'0','.',VERS MOD 10+'0',' for ',0 CALL RVBLNK ;turn on reverse,bold,blink video CALL ILPRT DB 'RAINBOW 100',0 CALL NORM CALL ILPRT DB ' -- File Manipulation Program -- ' DB MONTH/10+'0',MONTH MOD 10+'0','/' DB DAY/10+'0',DAY MOD 10+'0','/' DB YEAR/10+'0',YEAR MOD 10+'0' DB CR,LF,0 CALL RVRSE ;turn on reverse,bold video CALL ILPRT DB ' C - Copy file | D - Delete file | F - File size | J ' DB '- Jump 15 files ',CR,LF DB ' L - Log-in | M - Mass copy | P - Mass print | R ' DB '- Rename file ',CR,LF DB ' S - Stat drive | T - Tag file | U - Untag file | V ' DB '- View text file ',CR,LF DB ' W - Write punch | X - Exit to CP/M | <space> advances cu' DB 'rsor <- B backs up',0 CALL NORM CALL ILPRT DB CR,LF,LF,0 RET ; establish ring (circular list) of filenames SETRING LXI H,RING ;initialize ring pointer SHLD RINGPOS ;start --> current position of ring ; put each found name in ring. a-reg --> offset into 'tbuf' name storage TO$RING DCR A ;un-do 'inr' from above and below ADD A ;times 32 --> position index ADD A ADD A ADD A ADD A ADI TBUF ;add page offset and.. MOV L,A ;..put address into.. MVI H,0 ;..hl-pair. LDA FCB ;get drive/user designator and.. MOV M,A ;..put into 'fcb' buffer. XCHG LHLD RINGPOS ;pointer to current load point in ring XCHG MVI B,12 ;move drive designator and name to ring CALL MOVE XCHG ;de-pair contains next load point address MVI M,' ' ;space for potential.. INX H ;..tagging of files for mass copy. SHLD RINGPOS ;store and search.. MVI C,SRCHN ;..for next occurrence. LXI D,FCB ;filename address field CALL BDOS INR A ;if all done, 0ffh --> 00h. JNZ TO$RING ;if not, put next name into ring. ; all filenames in ring -- setup ring size and copy-buffer start point LHLD RINGPOS ;next load point of ring is start of buffer SHLD RINGEND ;set ring end.. SHLD BUFSTART ;..and copy-buffer start. LXI D,RING+13 ;compare 'ringend' (tab base+13) CALL CMPDEHL JZ CMDLOOP ;go to command loop, if no sort. ; sort ring of filenames SORT LXI H,RING ;initialize 'i' sort variable and.. SHLD RINGI LXI D,13 ;..also 'j' variable. DAD D SHLD RINGJ SORTLP LHLD RINGJ ;compare names 'i & j' XCHG LHLD RINGI PUSH H ;save position pointers.. PUSH D ;..for potential swap. MVI B,13 ; # of characters to compare ; left to right compare of two strings (de-pair points to 'a' string; ; hl-pair, to 'b'; b-reg contains string length.) CMPSTR LDAX D ;get an 'a' string character and.. CMP M ;..check against 'b' string character. JNZ NOCMP ;if not equal, set flag. INX H ;bump compare.. INX D ;..pointers and.. DCR B ; (if compare, set as equal.) JNZ CMPSTR ;..do next character. NOCMP POP D POP H MVI B,13 JNC NOSWAP ; swap if 'j' string larger than 'i' SWAP MOV C,M ;get character from one string.. LDAX D ;..and one from other string. MOV M,A ;second into first MOV A,C ;first into second STAX D INX H ;bump swap pointers INX D DCR B ;all bytes swapped yet? JNZ SWAP NOSWAP LHLD RINGJ ;increment 'j' pointer LXI D,13 DAD D SHLD RINGJ XCHG ;see if end of 'j' loop LHLD RINGEND CALL CMPDEHL JNZ SORTLP ;no, so more 'j' looping. LHLD RINGI ;bump 'i' pointer LXI D,13 DAD D SHLD RINGI DAD D ;set start over 'j' pointer SHLD RINGJ XCHG ;see if end of 'i' loop LHLD RINGEND CALL CMPDEHL JNZ SORTLP ;must be more 'i' loop to do ; sort done -- initialize tables for fast crc calculations CALL INITCRC ; calculate buffer maximum available record capacity B$SIZE LXI B,0 ;count records LHLD BDOS+1 ;get 'bdos' entry (fbase) IF NOT WARMBOOT LXI D,-(CCP) DAD D ENDIF ;not warmboot DCX H XCHG ;de-pair --> highest address of buffer LHLD BUFSTART ;start address of buffer (end of ring list) B$SIZE2 INX B ;increase record count by one PUSH D LXI D,128 ; 128-byte record DAD D ;buffer address + record size POP D CALL CMPDEHL ;compare for all done JNC B$SIZE2 ;more will fit? DCX B ;set maximum record count less one MOV A,B ;memory available for copy? ORA C JNZ B$SIZE3 ;yes, buffer memory space available. CALL ILPRT DB CR,LF,BELL,0 CALL RVBLNK DB '++ NO MEMORY FOR COPY BUFFER ++',0 CALL NORM JMP NEUTRAL B$SIZE3 MOV L,C ;store.. MOV H,B ;..maximum.. SHLD REC$MAX ;..record count. ; buffer size suitable -- process file/display loop CMDLOOP LXI H,RING ;set start point of listing SHLD RINGPOS LOOP CALL ILPRT DB CR,LF,' ',0 LOOP2 LHLD RINGPOS ;ring filename location MOV A,M ;move 'fcb' to a-reg and.. ADI 'A'-1 ;..make drive printable (a - p). CALL TYPE LDA C$U$A ;get current (last requested) user area ORA A ;branch if 'user.. JZ UAZ ;..area zero'. CPI 10 ;less then ten? JC LT$TEN ;if yes, branch. SUI 10 ;if not, suppress leading 10's digit. PUSH PSW MVI A,'1' ;print 10's digit as 'one' CALL TYPE POP PSW LT$TEN ADI '0' ;make 1's digit printable CALL TYPE UAZ CALL BOLD CALL ILPRT ;fence between 'drive/user' and.. DB ': ',0 ;..'fn.ft'. CALL NORM INX H ;beginning of 'fn.ft' string MVI B,8 ; 8 filename characters PRT$FN MOV A,M CALL TYPE INX H DCR B JNZ PRT$FN MVI A,'.' ;period between 'fn' and 'ft' CALL TYPE MVI B,3 ; 3 filetype characters PRT$FT MOV A,M CALL TYPE INX H DCR B JNZ PRT$FT MOV A,M ;get tag (*) and.. STA TAG+2 ;..put after colon. INX H SHLD RINGPOS ;save ring position CALL BOLD CALL ILPRT TAG DB ' : ',0 ;space, colon, space or * before cursor. CALL NORM LDA J$FLG ;jump.. ORA A ;..forward? JZ PRE$FOR K$WAIT CALL KEYIN ;wait for character from keyboard CPI ' ' ;if 'space' or..tract one ring position. JZ FORWARD CPI CR ;..'cursor return', move to next file. JZ FORWARD CPI 'B' ;if reverse, subtract one ring position. JZ REVERSE CPI 'C' ;copy file to another disk? JZ COPY CPI 'D' ;delete a file? JZ DELETE CPI 'F' ;show file size? JZ FIL$SIZ CPI 'J' ;jump forward? JZ JUMP15 CPI 'L' ;log-in another drive? JZ LOG CPI 'M' ;tagged multiple file copy? JZ MASS CPI 'P' ;output file to 'list' device? JZ MASSLST ;**** MASS PRINT LSTFILE CPI 'R' ;if rename, get to work. JZ RENAME CPI 'S' ;free bytes on.. JZ R$DR$ST ;..requested drive? CPI 'T' ;if tag, put '*' in.. JZ TAG$EM ;..front of cursor. CPI 'U' ;remove '*' from.. JZ UNTAG ;..in front of cursor? CPI 'V' ; 'view' file at console? JZ VIEW CPI 'W' ;file to punch? JZ PUNFILE CPI 'X' ;if exit, then to cp/m ccp. JZ CPM$CCP CPI ESC ; 'esc' exits to cp/m ccp also. JZ CPM$CCP CALL HELP ;get help message (menu) and.. CALL FRESTOR ;..show free storage remaining. NEUTRAL LHLD RINGPOS ;stay.. LXI D,-13 ;..in.. DAD D ;..the.. SHLD RINGPOS ;..same.. JMP LOOP ;..position. ; jump forward 15 files PRE$FOR LDA J$CNT ;adjust jump.. INR A ;..counter.. STA J$CNT ;..until.. CPI 15 ;..at top limit. JNZ FORWARD MVI A,TRUE ;at top, so.. STA J$FLG ;..turn off jump switch and.. JMP K$WAIT ;..wait for next keyboard input. ; u n t a g UNTAG XRA A ;set tag/untag.. STA T$UN$FG ;..flag to untag. LHLD RINGPOS ;move back one.. LXI D,-1 ;..character position.. DAD D ;..and check tagging status. MOV A,M ;if file previously tagged, remove.. CPI '*' ;..size from.. MVI M,' ' ; (untag character, to next ring position.) JZ FS2 ;..summation. JMP FORWARD ; t a g TAG$EM LHLD RINGPOS LXI D,-1 ;move back one.. DAD D ;..position.. MOV A,M ; (if file CPI '*' ; already tagged, skip JZ FORWARD ; to next file.) MVI M,'*' ;..and store a '*' tag character. MVI A,TRUE ;set.. STA T$UN$FG ;..tag/untag and.. STA FS$FLG ;..file size flags to tag. JMP FS2 ;get file size ; f i l e s i z e ; determine and display file size in kilobytes -- round up to next disk ; allocation block -- accumulate tagged file summation FIL$SIZ XRA A ;set file size/tagged.. STA FS$FLG ;..file flag to file size. FS2 MVI A,BS ;backspace over.. CALL TYPE ;..command character. CALL RINGFCB ;move name to 's$fcb' ; determine file record count and save in 'rcnt' MVI C,COMPSZ LXI D,S$FCB CALL BDOS LHLD S$FCB+33 SHLD RCNT ;save record count and.. LXI H,0 SHLD S$FCB+33 ;..reset cp/m. ; round up to next disk allocation block LDA B$MASK ;sectors/block - 1 PUSH PSW ;save 'blm' MOV L,A XCHG LHLD RCNT ;..use here. DAD D ;round up to next block MVI B,3+1 ;convert from.. CALL SHIFTLP ;..records to kilobytes. POP PSW ;retrieve 'blm' RRC ;convert.. RRC ;..to.. RRC ;..kilobytes/block. ANI 1FH CMA ;finish rounding ANA L MOV L,A ;hl-pair contains # of kilobytes LDA FS$FLG ORA A JZ D$F$SIZ ;branch if 'f' function ; tagged file size summation XCHG ;file size to de-pair LDA T$UN$FG ORA A JZ TAKE ;if untag, take size from total. LHLD TAG$TOT ;accumulate.. DAD D ;..sum of.. SHLD TAG$TOT ;..tagged file sizes. XCHG ;file size to hl-pair JMP D$F$SIZ ;branch to display sizes TAKE LHLD TAG$TOT ;subtract.. MOV A,L ;..file.. SUB E ;..size.. MOV L,A ;..from.. MOV A,H ;..summation.. SBB D ;..total. MOV H,A ;then put.. SHLD TAG$TOT ; (save total) XCHG ;..file size in hl-pair. ; display file size in kilobytes -- right justify tagged file total D$F$SIZ CALL DET$BCD ;determine # of bcd digits in hl-pair MVI A,9 ;limit of right margin (good for max cp/m 2.2) SUB B ; # of digits returned in b-reg from det$bcd STA TEST$RT ;save intermediate right-justify data CALL DECOUT ;print individual file size CALL ILPRT DB 'k',0 LDA FS$FLG ORA A JZ FORWARD ;show next file if not tagging ; determine # of digits in tagged summation LHLD TAG$TOT ;get present summation CALL DET$BCD ; insert necessary spaces (blanks) to right justify display LDA TEST$RT ;get intermediate right-justify data SUB B MOV B,A MVI A,' ' ;adjust.. ADD$SP CALL TYPE ;..to.. DCR B ;..achieve.. JNZ ADD$SP ;..right justification. MVI A,'(' CALL TYPE CALL DECOUT ;print tagged file summation CALL ILPRT DB 'k)',0 ;to next file.. JMP FORWARD ;..cursor line. ; j u m p JUMP15 XRA A ;clear.. STA J$FLG ;..jump forward flag and.. STA J$CNT ;..file counter. fall-thru to next filename. ; f o r w a r d FORWARD LHLD RINGPOS ;at end of loop yet? XCHG LHLD RINGEND CALL CMPDEHL ;compare 'present' to 'end' JNZ LOOP ;to next print position CALL CRLF ;end-of-directory shows with fresh line LXI H,RING ;set position pointer to beginning and.. SHLD RINGPOS JMP LOOP ;..redisplay start entry. ; r e v e r s e REVERSE LHLD RINGPOS ;see if at beginning of ring LXI D,RING+13 CALL CMPDEHL JNZ REV1 ;skip position pointer reset if not.. CALL CRLF ;..at beginning. skip line at junction. LHLD RINGEND ;set to end +1 to backup to end LXI D,13 DAD D SHLD RINGPOS REV1 CALL BOLD CALL ILPRT ;indicate reverse DB CR,LF,'<- ',0 CALL NORM LHLD RINGPOS LXI D,-(13*2) ;one ring position.. DAD D ;..backwards. SHLD RINGPOS JMP LOOP2 ;display without 'crlf' ; s t a t ; determine remaining storage on requested drive R$DR$ST CALL BOLD CALL ILPRT DB BS,'Storage remaining on drive: ',0 CALL NORM CALL DEF$D$U ;determine drive requested and.. CALL RESET ;..login as current. CALL ILPRT DB CR,LF,LF,0 CALL FRESTOR ;determine free space remaining LDA C$DR ;login original as.. CALL SET$DR ;..current drive. JMP NEUTRAL ; d e l e t e ; set up to delete filename at cursor position DELETE CALL RINGFCB ;move name from ring to 'rename fcb' CALL BLBLNK CALL ILPRT DB BS,'Delete? (Y/N): ',0 CALL NORM CALL KEYIN CPI 'Y' JNZ NEUTRAL ; delete file LXI D,S$FCB ;point at delete 'fcb' MVI C,ERASE ;erase function CALL BDOS INR A JNZ DEL2 ;file deleted okay FNF$MSG CALL ILPRT ;show error message DB CR,LF,0 CALL RVBLNK CALL ILPRT DB '++ NO FILE FOUND ++',0 CALL NORM JMP NEUTRAL ; reverse ring to close up erased position DEL2 LHLD RINGPOS ;prepare move up pointers PUSH H LXI D,-13 DAD D SHLD RINGPOS ;reset current position for move XCHG ;de-pair = 'to' location POP H ;hl-pair = 'from' location MOVUP XCHG PUSH H ;check if at end LHLD RINGEND ;get old end pointer CALL CMPDEHL ;check against current end location POP H XCHG JZ MOVDONE ;must be at end of ring MVI B,13 ;one name size CALL MOVE ;move one name up JMP MOVUP ;go check end parameters MOVDONE XCHG SHLD RINGEND ;set new ring end if all moved LXI D,RING ;see if ring is empty.. CALL CMPDEHL ;..(listend --> listpos --> ring) JNZ FORWARD LHLD RINGPOS CALL CMPDEHL JNZ FORWARD ;neither equal so not empty CALL ILPRT DB CR,LF,LF,' ',0 CALL RVBLNK CALL ILPRT DB '++ List Empty ++',0 CALL NORM CALL ILPRT DB CR,LF,LF,0 CALL BLBLNK CALL ILPRT DB ' ---> ',0 CALL NORM JMP LOG ;go to drive/user area with files ; r e n a m e ; set-up to rename file at cursor position -- scan keyboard buffer and ; move filename to 'rename' destination 'fcb' (dfcb) RENAME LHLD RINGPOS ;move name from ring to rename 'fcb' LXI D,-13 DAD D ;point to name position LXI D,D$FCB ;place to move name MVI B,12 ;amount to move CALL MOVE CALL BOLD CALL ILPRT ;new name prompt DB BS,'Rename file to: ',0 CALL NORM LXI D,CMDBUF ;command line location MVI C,RDBUF ;console read-buffer function CALL BDOS CALL CONVERT ;capitalize alpha LXI H,D$FCB+16 ;set drive to null as.. MVI M,0 ;..required by 'bdos'. INX H ; initialize new filename field with spaces PUSH H ;save start pointer MVI B,11 ; # of spaces to 'blank' CALL FILL POP H XCHG LXI H,CMDBUF+1 ;put length.. MOV C,M ;..in c-reg. INX H XCHG ;de-pair --> buffer pointer and hl-pair.. CALL UNSPACE ;..--> 'fcb' pointer. remove leading spaces. ; extend buffer to spaces beyond command length EXTEND PUSH H MOV L,C ;double-byte remaining length MVI H,0 DAD D ;to buffer end +1 MVI M,' ' ;force illegal character end POP H ; start filename scan SCAN MVI B,8 ; 8 characters in filename SCAN1 CALL CKLEGAL ;get and see if legal character JC COMCAN ;all of command line? CPI ' ' ;see if end of parameter field JZ CPYBITS ;rename file CPI '.' ;at end of filename JZ SCAN2 ;process filetype field MOV M,A ;put character into destination 'fcb' INX H DCR B ;check name character count JNZ SCAN1 ; entry if eight characters without a 'period' SCAN1A CALL CKLEGAL ;scan buffer up to period or end JC CPYBITS ;no extent if not legal CPI ' ' ;end of parameter field? JZ CPYBITS CPI '.' JNZ SCAN1A ;do till end or period ; build filetype field SCAN2 MVI B,3 ;length of filetype field LXI H,D$FCB+25 ;destination 'rename' filetype start SCAN3 CALL CKLEGAL ;get and check character JC SCAN4 ;name done if illegal CPI ' ' ;end of parameter field? JZ SCAN4 CPI '.' ;check if another period JZ SCAN4 MOV M,A INX H DCR B JNZ SCAN3 ;get next character SCAN4 LXI H,D$FCB+28 ;set pointer to 'rename' filetype end CALL INITFCB ;..and zero counter fields. ; copy old file status bit ($r/o or $sys) to new filename CPYBITS LXI D,D$FCB+1 ;first character of old name.. LXI H,D$FCB+17 ;..and of new name. MVI C,11 ; # of bytes with tag bits CBITS1 LDAX D ;fetch bit of old name character ANI 128 ;strip upper bit and.. MOV B,A ;..save in b-reg. MVI A,7FH ;mask for character only ANA M ;put masked character into a-reg ORA B ;add old bit MOV M,A ;copy new byte back INX H ;bump copy pointers INX D DCR C ;bump copy counter JNZ CBITS1 ; check if new filename already exists. if so, say so. then go ; to command loop without moving ring position LDA D$FCB ;copy new name to source 'fcb' STA S$FCB MVI B,11 LXI H,D$FCB+17 ;copy new name to.. LXI D,S$FCB+1 ;..source 'fcb' for existence check. CALL MOVE LXI H,S$FCB+12 ;clear cp/m 'fcb' system.. CALL INITFCB ;..fields. LXI D,S$FCB ;search to see if this file exists MVI C,SRCHF ;search first function CALL BDOS INR A ; 0ffh --> 00h if file not found JZ RENFILE ;to rename, if duplicate doesn't exists. CALL ILPRT ;announce the situation DB CR,LF,0 CALL RVBLNK CALL ILPRT DB '++ FILE ALREADY EXISTS ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,' ',0 JMP NEUTRAL ;try again? ; copy new name into ring position RENFILE LHLD RINGPOS ;get ring position pointer LXI D,-12 ;back 12 leaves drive designation intact DAD D XCHG LXI H,D$FCB+17 ;point at new name and.. MVI B,11 CALL MOVE ;..move. LXI D,D$FCB ;rename 'fcb' location MVI C,REN ;rename function CALL BDOS INR A ; 0ffh --> 00h if rename error JNZ NEUTRAL ;if okay, proceed, else.. JMP FNF$MSG ;..show no-file msg. ; v i e w ; type file to console with pagination set to 'lps' -- single-line scroll ; using <space> bar , <ctrl-x> to cancel, any other key to page screen. VIEW CALL ILPRT DB CR,LF,0 CALL RVRSE CALL ILPRT DB '<CTRL-X> cancels, <space> turns up one line, ' DB 'other keys page screen.',0 CALL NORM CALL ILPRT DB CR,LF,LF,0 MVI A,1 ;initialize.. STA LPSCNT ;..lines-per-screen counter. STA VIEWFLG ; 'view' paginate if not zero MVI A,WRCON ;write console out function JMP CURRENT ;to common i/o processing ; p r i n t e r ; send file to logical list device -- any keypress cancels LSTFILE XRA A ;zero for.. STA VIEWFLG ;..output to printer. MVI A,LIST ;out to 'list' device function JMP CURRENT ; p u n c h ; write file to cp/m logical punch device PUNFILE XRA A STA VIEWFLG MVI A,PUNCH ;put to 'punch' device function ; output character for console/list/punch processing CURRENT STA CON$LST ;save bdos function ; output file to console/printer/punch CALL RINGFCB ;position name to 'fcb' LXI D,TBUF ;set to use default cp/m dma buffer MVI C,SETDMA ;address set function CALL BDOS LXI H,S$FCB+12 ;set pointer to source extent field CALL INITFCB ;fix-up 'fcb' before use LXI D,S$FCB ;open file for reading MVI C,OPEN ;file open function code CALL BDOS INR A ; 0ffh --> 00h if open okay JNZ ZEROCR ;if not okay, show error message. CALL RVBLNK CALL ILPRT DB '++ UNABLE TO OPEN FILE ++',0 CALL NORM JMP NEUTRAL ZEROCR XRA A ;zero file 'current record' field STA S$FCB+32 READMR LXI D,S$FCB ;point at file 'fcb' for reading MVI C,READ ;record read function CALL BDOS ORA A ;check if read okay JNZ NEUTRAL ;eof? LXI H,TBUF ;point at record just read MVI B,128 ;set record character counter to output READLP MOV A,M ;get a character ANI 7FH ;force to 'ascii' CPI EOFCHAR ;see if end-of-file JZ NEUTRAL ;back to ring loop if 'eof' MOV E,A ;put character for 'bdos' call PUSH B PUSH H PUSH D ; (character in e-reg) LDA CON$LST ;get function for punch/list/console output MOV C,A CALL BDOS ;send character LDA VIEWFLG ;if 'view'.. ORA A POP D CNZ PAGER ;..check for 'lf'. MVI C,CONST ;console status function CALL BDOS ;status? POP H POP B ORA A ;if character there, then abort.. JNZ NEUTRAL ;..to same ring position. INX H ;if not, bump buffer pointer. DCR B ;all bytes of record sent yet? JNZ READLP ;no, more in present record. JMP READMR ;yes, get next record. PAGER MOV A,E ; (character in e-reg) CPI LF RNZ LDA LPSCNT ;is counter.. INR A ;..at.. STA LPSCNT ;..limit.. CPI LPS ;..of lines-per-screen? RC ;no, return. XRA A ;yes, initialize.. STA LPSCNT ;..for next screen full. CALL RVRSE CALL ILPRT DB ' [more...]',CR,0 ;show msg line CALL NORM CALL DKEYIN ;wait for keyboard input CPI ' ' ;see if <space> bar.. PUSH PSW CALL ILPRT DB ' ',CR,0 ;clear above msg line POP PSW JNZ CANVIEW ;..if not, see if cancel. MVI A,LPS-1 ;if so, set up for single-line.. STA LPSCNT ;..scroll and.. RET ;..return for one more line. CANVIEW CPI ESC ;escape? JZ COMCAN CPI CAN ;cancel? JZ COMCAN ;retain ring position RET ;return for another page ; m a s s c o p y ; copy files tagged using the 't' command. auto-erase if file exists ; on requested destination drive or in user area. MASS LXI H,RING+12 ;get 1st possible tag location SHLD RINGPOS MASS$LP MVI A,'*' CMP M INX H ;get in filename synchronization SHLD RINGPOS JZ MCOPY ;copy filename with tag character (*) M$LP LHLD RINGPOS ;re-entry point for next file mass-copy XCHG ;at ring.. LHLD RINGEND ;..end yet? CALL CMPDEHL ; (compare present position with end) JZ MF$EXIT ;yes, jump to beginning of ring. LHLD RINGPOS JMP MASS$LP ;no, loop 'till thru ring list. MF$EXIT XRA A ;reset flags.. STA FIRST$M ;..for.. CMA ;..next.. STA MFLAG ;..mass-copy request. JMP CMDLOOP ;jump to 'ring' beginning ; c o p y ; copy source file at current 'ring' position to another drive. set-up ; fcb's and buffer area and check for correct keyboard inputs. contains ; auto-crc file copy verification. MCOPY XRA A ;zero flag to.. STA MFLAG ;..mass copy. COPY LXI H,0 ;initialize storage for.. SHLD CRCVAL ;..'crc' working value. CALL RINGFCB ;move from 'ring' to 'sfcb' LXI H,S$FCB+12 ;set pointer to source extent field CALL INITFCB XRA A ;zero fcb 'cr' field STA S$FCB+32 MVI B,32 ;copy source 'fcb' to destination 'fcb' LXI H,S$FCB+1 ;from point.. LXI D,D$FCB+1 ;..to point.. CALL MOVE ;..move across. LXI D,S$FCB ;open file for reading MVI C,OPEN ;open function CALL BDOS INR A ; 0ffh --> 00h if bad open JNZ COPY2 ;if okay, skip error message. CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ UNABLE TO OPEN SOURCE ++',0 CALL NORM CALL ILPRT DB CR,LF,0 JMP NEUTRAL COPY2 LDA FIRST$M ;by-pass prompt, drive/user compatibility.. ORA A ;..test, and disk reset after.. JNZ COPY3M ;..1st time thru in mass-copy mode. CALL BOLD CALL ILPRT ;prompt for drive selection DB BS,'Copy to drive/user: ',0 CALL NORM CALL DEF$D$U ; either drives or user areas must be different LDA FCB ;get requested drive from 'fcb' and.. MOV B,A ;..put into b-reg for.. LDA S$FCB ;..comparison. CMP B JNZ COPY3 ;branch if different LDA R$U$A ;requested user area --> rua MOV B,A LDA C$U$A ;current user area --> cua CMP B JNZ COPY3 CALL ILPRT ;if not, show error condition: DB CR,LF,BELL,0 CALL RVBLNK CALL ILPRT DB '++ Drives or User Areas must be different ++',0 CALL NORM JMP NEUTRAL ;try again? COPY3 CALL RESET ;make sure disk is read/write COPY3M LDA FCB ;put requested drive into.. STA D$FCB ;..place in destination fcb. LDA R$U$A ;toggle to.. CALL SET$USR ;..requested user area. LDA MFLAG ;auto-erase.. ORA A ;..if.. JZ COPY4M ;..in mass-copy mode. LXI D,D$FCB ;search for duplicate MVI C,SRCHF ; 'search first' function CALL BDOS INR A ;if not found, 0ffh --> 00h. then.. JZ COPY5 ;go to 'make' function for new file. CALL BLBLNK CALL ILPRT ;if found, ask to replace: DB CR,LF,' ---> Copy exists, erase? (Y/N): ',0 CALL NORM CALL KEYIN ;get answer CPI 'Y' ;if yes, then.. JZ COPY4M ;..delete and overlay. LDA C$U$A ;reset to.. CALL SET$USR ;..current user area. JMP FORWARD ;if re-copy not wanted, to next position. COPY4M LXI D,D$FCB ;delete file already existing MVI C,ERASE ;erase function CALL BDOS COPY5 LXI D,D$FCB ;create new file and open for writing MVI C,MAKE ;make function CALL BDOS INR A ;if directory full, 0ffh --> 00h. JNZ COPY6 ;if not, branch. CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ Destination Directory Full ++',0 CALL NORM CALL ILPRT DB CR,LF,0 JMP NEUTRAL ;if error, back to ring processor. COPY6 MVI B,8 ;show filename and.. LXI H,D$FCB+1 LXI D,COPYMFN CALL MOVE INX D MVI B,3 ;..filetype during copy. CALL MOVE LDA FIRST$M ;if 1st time thru mass-copy.. ORA A ;..mode, add.. MVI A,LF ;..a line feed. CZ TYPE CALL CLR$L ;clear line CALL BOLD CALL ILPRT DB CR,' ---> Copying file ',0 CALL BLBLNK CALL ILPRT COPYMFN DB ' . ',0 CALL NORM XRA A ;clear 'eof'.. STA EOFLAG ;..flag. COPY6A LDA C$U$A ;reset user area.. CALL SET$USR ;..to current. LXI H,0 ;clear current-record.. SHLD REC$CNT ;..counter. LHLD BUFSTART ;set buffer start pointer.. SHLD BUF$PT ;..to begin pointer. ; read source file -- fill buffer memory or stop on 'eof' -- update 'crc' ; on-the-fly COPY7 LHLD BUF$PT ;set dma address to buffer pointer XCHG ; de-pair --> dma address MVI C,SETDMA CALL BDOS LXI D,S$FCB ;source 'fcb' for reading MVI C,READ ;record read function CALL BDOS ORA A ; 00h --> read okay JZ S$RD$OK DCR A ;eof? JZ COPY8 ;yes, end-of-file, set 'eof' flag. CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ SOURCE READ ERROR ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,0 JMP NEUTRAL S$RD$OK LHLD BUF$PT MVI B,128 COPY7A MOV A,M ;get character and.. CALL UPDCRC ;..add to 'crc' value. INX H DCR B JNZ COPY7A ;loop 'till record read finished LHLD BUF$PT ;bump buffer pointer.. LXI D,128 ;..by.. DAD D ;..one.. SHLD BUF$PT ;..record. LHLD REC$CNT ;bump buffer.. INX H ;..record count and.. SHLD REC$CNT ;..store. XCHG ;ready to compare to.. LHLD REC$MAX ;..maximum record count (full-buffer). CALL CMPDEHL ;compare JNZ COPY7 ;if not full, get next record. JMP COPY9 ;full, start first write session. ; indicate end-of-file read COPY8 MVI A,TRUE ;set 'eof' flag STA EOFLAG ; write 'read-file' from memory buffer to destination 'written-file' COPY9 LDA R$U$A ;set user to requested.. CALL SET$USR ;..area. LHLD BUFSTART ;adjust buffer pointer.. SHLD BUF$PT ;..to start address. COPY10 LHLD REC$CNT ;buffer empty? MOV A,H ORA L JZ COPY11 ;buffer empty, check 'eof' flag. DCX H ;dec buffer record count for each write SHLD REC$CNT LHLD BUF$PT ;set up dma address PUSH H ;save for size bump XCHG ;pointer in de-pair MVI C,SETDMA CALL BDOS POP H LXI D,128 ;bump pointer one record length DAD D SHLD BUF$PT LXI D,D$FCB ;destination file 'fcb' MVI C,WRITE ;write record function CALL BDOS ORA A ; 00h --> write okay JZ COPY10 ;okay, do next record. else.. CALL ILPRT ;..say disk write error. DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ COPY DISK FULL ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,0 C$ERA LXI D,D$FCB ;delete.. MVI C,ERASE ;..partial.. CALL BDOS ;..from directory. XRA A ;reset 1st-time-thru tag flag.. STA FIRST$M ;..for continuation of mass copying. JMP NEUTRAL ;back to ring COPY11 LDA EOFLAG ;buffer all written, check for 'eof'. ORA A JZ COPY6A ;branch to read next buffer full LXI D,D$FCB ;point at 'fcb' for file closure MVI C,CLOSE CALL BDOS INR A ;if no-close-error then.. JNZ CRC$CMP ;..compare file crc's. CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ COPY CLOSE ERROR ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,0 JMP C$ERA ; read destination 'written-file' and compare crc's CRC$CMP LHLD CRCVAL ;transfer 'crc' value to.. SHLD CRCVAL2 ;..new storage area. LXI H,0 ;clear working storage.. SHLD CRCVAL ;..to continue. LXI D,TBUF MVI C,SETDMA CALL BDOS LXI H,D$FCB+12 CALL INITFCB LXI D,D$FCB MVI C,OPEN CALL BDOS INR A ; 0ffh --> 00h if bad open JZ BADCRC ;if bad open, just say 'bad-crc'. XRA A ;zero 'fcb'.. STA D$FCB+32 ;..'cr' field. CRCWF1 LXI D,D$FCB MVI C,READ CALL BDOS ORA A ;read okay? JZ D$RD$OK ;yes, read more. DCR A ;eof? JZ FINCRC ;yes, finish up and make 'crc' comparison. CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ COPY READ ERROR ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,0 JMP NEUTRAL D$RD$OK LXI H,TBUF MVI B,128 CRCWF2 MOV A,M ;get character to.. CALL UPDCRC ;..add to 'crc' value. INX H DCR B JNZ CRCWF2 JMP CRCWF1 ; crc subroutines ; initialize tables for fast crc calculations INITCRC LXI H,CRCTBL MVI C,0 ;table index GLOOP XCHG LXI H,0 ;initialize crc register pair MOV A,C PUSH B ;save index in c-reg MVI B,8 XRA H MOV H,A LLOOP DAD H JNC LSKIP MVI A,10H ;generator is x^16 + x^12 + x^5 + x^0 as.. XRA H ;..recommended by ccitt for asynchronous.. MOV H,A ;..communications. produces the same.. MVI A,21H ;..results as public domain programs.. XRA L ;..chek, comm7, mdm7, and modem7. MOV L,A LSKIP DCR B JNZ LLOOP POP B XCHG ;de-pair now has crc, hl pointing into table. MOV M,D ;store high byte of crc.. INR H MOV M,E ;..and store low byte. DCR H INX H ;move to next table entry INR C ;next index JNZ GLOOP RET UPDCRC PUSH B ;update 'crc'.. PUSH H ;..accumulator.. LHLD CRCVAL ;pick up partial remainder XCHG ;de-pair now has partial MVI B,0 XRA D MOV C,A LXI H,CRCTBL DAD B MOV A,M XRA E MOV D,A INR H MOV E,M XCHG SHLD CRCVAL POP H POP B RET FINCRC LDA C$U$A ;reset user from 'requested'.. CALL SET$USR ;..to 'current' area. LHLD CRCVAL ;put written-file 'crc' into.. XCHG ;..de-pair. LHLD CRCVAL2 ;put read-file 'crc' and.. CALL CMPDEHL ;..compare 'de/hl' for equality. JNZ BADCRC ;if not zero, show copy-error message. CALL BOLD CALL ILPRT ;if zero, show 'verified' message. DB ' CRC verified',CR,LF,0 CALL NORM LDA MFLAG ;if not mass-copy mode, return.. ORA A ;..to next 'ring' position. JNZ FORWARD ;else.. CMA ;..set 1st-time-thru flag.. STA FIRST$M ;..and.. JMP M$LP ;..get next file to copy, if one. BADCRC CALL ILPRT DB ' ',0 CALL RVBLNK CALL ILPRT DB '++ Error on CRC compare ++',0 CALL NORM CALL ILPRT DB CR,LF,BELL,0 JMP FORWARD ;move to next 'ring' position ; w o r k h o r s e r o u t i n e s ; inline print of message ILPRT XTHL ;save hl, get msg pointer. ILPLP MOV A,M ;get character ANI 7FH ;strip type bits CALL TYPE ;show on console INX H ;point to the next character and.. MOV A,M ORA A ;..test for end-of-text. JNZ ILPLP XTHL ;set hl-pair and.. RET ;..return past message. ; clear console crt screen CLS CALL ILPRT ;Rainbow 100 esc sequences to clear screen DB RAIN1,RAIN2,RAIN3,RAIN4,RAIN1,RAIN2,RAIN5,0 RET NORM CALL ILPRT DB RAIN1,RAIN2,RAIN6,RAIN11,0 RET BOLD CALL ILPRT DB RAIN1,RAIN2,RAIN7,RAIN11,0 RET RVRSE CALL ILPRT DB RAIN1,RAIN2,RAIN9,RAIN10,RAIN7,RAIN11,0 RET RVBLNK CALL ILPRT DB RAIN1,RAIN2,RAIN9,RAIN10,RAIN7,RAIN10,RAIN8,RAIN11,0 RET BLBLNK CALL ILPRT DB RAIN1,RAIN2,RAIN7,RAIN10,RAIN8,RAIN11,0 RET LFLP MVI A,LF CALL TYPE DCR B ;count-down b-reg --> zero JNZ LFLP RET ; output 'crlf' to console CRLF MVI A,CR CALL TYPE MVI A,LF ; conout routine (re-entrant) TYPE PUSH PSW PUSH B PUSH D PUSH H MOV E,A MVI C,WRCON CALL BDOS POP H POP D POP B POP PSW RET ; crt clear-line function CLR$L MVI A,CR CALL TYPE MVI B,30 ;blank # of characters on line MVI A,' ' CL$LP CALL TYPE DCR B JNZ CL$LP RET ; conin routine (waits for response) KEYIN MVI C,RDCON CALL BDOS ; convert character in a-reg to upper case UCASE CPI 61H ;less than small 'a'? RC ;if so, no convert needed. CPI 7AH+1 ; >small 'z'? RNC ;if so, ignore. ANI 5FH ;otherwise convert RET ; direct console input w/o echo (waits for input) DKEYIN MVI C,DIRCON ;cp/m function 6 MVI E,0FFH CALL BDOS ORA A JZ DKEYIN RET ; convert keyboard input to upper case CONVERT LXI H,CMDBUF+1 ; 'current keyboard buffer length'.. MOV B,M ;..to b-reg. MOV A,B ORA A ;if zero length, skip conversion. JZ COMCAN CONVLP INX H ;point at character to capitalize MOV A,M CALL UCASE MOV M,A ;put back into buffer DCR B JNZ CONVLP RET ; fill buffer with 'spaces' with count in b-reg FILL MVI M,' ' ;put in space character INX H DCR B ;count done? JNZ FILL ;no, branch. RET ; ignore leading spaces (ls) in buffer, length in c-reg. UNSPACE LDAX D ;get character CPI ' ' RNZ ;not blank, a file is entered. INX D ;to next character DCR C JZ COMCAN ;all spaces --> command recovery error JMP UNSPACE ; check for legal cp/m filename character -- return with carry set if illegal CKLEGAL LDAX D ;get character from de-pair INX D ;point at next character CPI ' ' ;less than space? RC ;return carry if unpermitted character PUSH H PUSH B CPI '[' ;if greater than 'z', exit with.. JNC CKERR ;..carry set. MVI B,8 LXI H,CHR$TBL CHR$LP CMP M JZ CKERR INX H DCR B JNZ CHR$LP ORA A ;clear carry for good character POP B POP H RET CKERR POP B POP H STC ;error exit with carry set RET CHR$TBL DB '*',',',':',';','<','=','>','?' ;invalid character table ; filename from 'ring' to 'sfcb' RINGFCB LHLD RINGPOS ;move name from ring to source 'fcb' LXI D,-13 ;subtract 13 to.. DAD D ;..point to name position. LXI D,S$FCB ;place to move filename and.. MVI B,12 ;..amount to move. ; move subroutine -- move b-reg # of bytes from hl-pair to de-pair MOVE MOV A,M ;get hl-pair referenced source byte ANI 7FH ;strip cp/m 2.x attributes STAX D ;put to de-pair referenced destination INX H ;fix pointers for next search INX D DCR B ;dec byte count and see if done JNZ MOVE RET ; initialize 'fcb' cp/m system fields (entry with hl-pair pointing to 'fcb') INITFCB MVI B,4 ;fill ex, s1, s2, rc counters with zeros. INITLP MVI M,0 ;put zero (null) in memory INX H DCR B JNZ INITLP RET ; disk system reset -- login requested drive RESET MVI C,INQDISK ;determine and.. CALL BDOS ;..save.. STA C$DR ;..current drive. MVI C,RESETDK ;reset system CALL BDOS LDA R$DR ;make requested drive.. SET$DR MOV E,A ;..current. MVI C,LOGIN JMP BDOS ;return to caller ; set/reset (or get) user area (call with binary user area in a-reg) SET$USR MOV E,A ; 0 --> 0, 1 --> 1, etc. GET$USR MVI C,SGUSER JMP BDOS ;return to caller ; compare de-pair to hl-pair and set flags accordingly CMPDEHL MOV A,D ;see if high bytes set flags CMP H RNZ ;return if not equal MOV A,E CMP L ;low bytes set flags instead RET ; shift hl-pair b-reg bits (-1) to right (divider routine) SHIFTLP DCR B RZ MOV A,H ORA A RAR MOV H,A MOV A,L RAR MOV L,A JMP SHIFTLP ; decimal pretty print (h-reg contains msb; l-reg, the lsb.) DECOUT PUSH PSW PUSH B PUSH D PUSH H LXI B,-10 ;radix LXI D,-1 DECOU2 DAD B ;sets.. INX D JC DECOU2 ;..carry. LXI B,10 DAD B XCHG MOV A,H ORA L CNZ DECOUT ; (recursive) MOV A,E ADI '0' ;make ascii CALL TYPE POP H POP D POP B POP PSW RET ; determine # of bcd digits in hl-pair -- place # in b-reg DET$BCD LXI D,9 ;test for less than 10 CALL CMPDEHL ;compare and.. MVI B,1 ; (one bcd digit) RNC ;..return if not carry. MVI E,99 ;less than 100? CALL CMPDEHL MVI B,2 RNC LXI D,999 ; <1000? CALL CMPDEHL MVI B,3 RNC MVI B,4 ;assume >999 (4 digits) RET ; determine free storage remaining on selected drive FRESTOR MVI C,INQDISK ;determine current drive CALL BDOS ;returns 0 as a:, 1 as b:, etc. INR A ;make 1 --> a:, 2 --> b:, etc. STA FCB ADI 'A'-1 ;make printable and.. STA DRNAME ;..use as drive designator. MVI C,GETPARM ;current disk parameter block CALL BDOS INX H ;bump to.. INX H MOV A,M ;..block shift factor. STA BSHIFTF ; 'bsh' INX H ;bump to.. MOV A,M ;..block mask. STA B$MASK ; 'blm' INX H ;bump to.. INX H ;..get.. MOV E,M ;..maximum block number.. INX H ;..double.. MOV D,M ;..byte. XCHG SHLD B$MAX ; 'dsm' MVI C,INQALC ;address of cp/m allocation vector CALL BDOS XCHG ;get its length LHLD B$MAX INX H LXI B,0 ;initialize block count to zero GSPBYT PUSH D ;save allocation address LDAX D MVI E,8 ;set to process 8 bits (blocks) GSPLUP RAL ;test bit JC NOT$FRE INX B NOT$FRE MOV D,A ;save bits DCX H MOV A,L ORA H JZ END$ALC ;quit if out of blocks MOV A,D ;restore bits DCR E ;count down 8 bits JNZ GSPLUP ;branch to do another bit POP D ;bump to next count.. INX D ;..of allocation vector. JMP GSPBYT ;process it END$ALC POP D ;clear alloc vector pointer from stack MOV L,C ;copy # blocks to hl-pair MOV H,B LDA BSHIFTF ;get block shift factor SUI 3 ;convert from sectors to thousands (k) JZ PRT$FRE ;skip shifts if 1k blocks FREK$LP DAD H ;multiply blocks by k-bytes per block DCR A ;multiply by 2, 4, 8, or 16. JNZ FREK$LP PRT$FRE CALL BOLD CALL DECOUT ; # of free k-bytes in hl-pair CALL ILPRT DB 'k bytes free on drive ' DRNAME DB ' :',CR,LF,' ',0 CALL NORM RET ; s t o r a g e ; initialized JOKER DB '???????????' ; *.* equivalent J$FLG DB TRUE ;default jump 22-files command flag FIRST$M DB FALSE ; 1st time thru in mass-copy mode MFLAG DB TRUE ;multiple file copy flag --> 0 for mass copy TAG$TOT DW 0 ;summation of tagged file sizes CMDBUF DB 32,0 ;command buffer maximum length, usage, and.. ; uninitialized DS 100 ;..storage for buffer and local stack. STACK DS 2 ;cp/m's stack pointer stored here B$MAX DS 2 ;highest block number on drive B$MASK DS 1 ;sec/blk - 1 BSHIFTF DS 1 ; # of shifts to multiply by sec/blk BUF$PT DS 2 ;copy buffer current pointer.. BUFSTART DS 2 ;..and begin pointer. CANFLG DS 1 ;no-file-found cancel flag C$DR DS 1 ; 'current drive' CON$LST DS 1 ;bdos function storage CRCTBL DS 512 ;tables for 'crc' calculations CRCVAL DS 2 ; 2-byte 'crc' value of working file and.. CRCVAL2 DS 2 ;..of finished source read-file. C$U$A DS 1 ; 'current user area' D$FCB DS 33 ;fcb for destination file/new name if rename EOFLAG DS 1 ;file copy loop 'eof' flag FS$FLG DS 1 ;tag total versus file size flag J$CNT DS 1 ;jump forward file counter LPSCNT DS 1 ;lines-per-screen for 'view' O$USR DS 1 ;store initial user area for exit R$DR DS 1 ; 'requested drive' RCNT DS 2 ; # of records in file and.. REC$CNT DS 2 ;..currently in ram buffer. REC$MAX DS 2 ;maximum 128-byte record capacity of buffer RINGI DS 2 ;ring sort pointer RINGJ DS 2 ;another ring sort pointer RINGEND DS 2 ;current ring end pointer RINGPOS DS 2 ;current ring position in scan R$U$A DS 1 ; 'requested user area' S$FCB DS 36 ;fcb for source (random record) file TEST$RT DS 1 ;intermediate right-justify data T$UN$FG DS 1 ;tag/untag file summation switch VIEWFLG DS 1 ; 00h --> to list/punch else to crt 'view' ; cp/m system functions RDCON EQU 1 ;console input function WRCON EQU 2 ;write character to console.. PUNCH EQU 4 ;..punch and.. LIST EQU 5 ;..to list logical devices. DIRCON EQU 6 ;direct console i/o RDBUF EQU 10 ;read input string CONST EQU 11 ;get console status RESETDK EQU 13 ;reset disk system LOGIN EQU 14 ;log-in new drive OPEN EQU 15 ;open file CLOSE EQU 16 ;close file SRCHF EQU 17 ;search directory for first.. SRCHN EQU 18 ;..and next occurrence. ERASE EQU 19 ;erase file READ EQU 20 ;read and.. WRITE EQU 21 ;..write 128-record. MAKE EQU 22 ;make file REN EQU 23 ;rename file INQDISK EQU 25 ;get current (default) drive SETDMA EQU 26 ;set dma address INQALC EQU 27 ;allocation vector GETPARM EQU 31 ;current drive parameters address SGUSER EQU 32 ;set or get user area COMPSZ EQU 35 ; # of records in file ; system addresses BDOS EQU CPM$BASE+05H ;bdos function entry address FCB EQU CPM$BASE+5CH ;default file control block FCBEXT EQU FCB+12 ;extent byte in 'fcb' FCBRNO EQU FCB+32 ;record number in 'fcb' TBUF EQU CPM$BASE+80H ;default cp/m buffer ; assembled 'com' and 'ram-loaded' file size (0c00h = 3k) COMFILE EQU (CMDBUF+2)-256 ; 'prn' listing shows 'com'.. LAST END SOURCE ;..and loaded file size.