Difference between revisions of "ACU March 1985 - Type-ins"
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=Screen Dump (Epson)= | =Screen Dump (Epson)= | ||
| − | The Z80 assembler code for the Epson Screen Dump program. | + | The Z80 assembler code for the Epson Screen Dump program.<br/> |
| + | The machine code can be loaded in BASIC using DMPLIST2.BAS and DMPLIST4.BAS. | ||
<pre> | <pre> | ||
ORG &8000 | ORG &8000 | ||
Revision as of 01:26, 27 April 2009
Return to ACU Type-Ins
Contents
Downloads
Cover Image
Electric Eddy
To run Electric Eddy, type:
RUN"EDDY"
Electric Fencing
To run Electric Fencing, type:
RUN"FENCING"
Flashman
To run Flashman, type:
RUN"FLASHMAN"
Jeremy Vine's music routine
To run Jeremy Vine's music routine, type:
RUN"MUSIC"
Machine code fill routine and demonstration
To run Machine code fill routine and demonstration, type:
RUN"MCFILL"
Number Sort routine
To run Number Sort routine, type:
RUN"SORT"
Prime Numbers (1)
To run Prime Numbers (1), type:
RUN"PASCAL3"
Prime Numbers (2)
To run Prime Numbers (2), type:
RUN"PASCAL4"
Screen Dump (DMP1)
The Z80 assembler code for the DMP1 Screen Dump program.
The machine code can be loaded in BASIC using DMPLIST2.BAS and DMPLIST4.BAS.
ORG &8000 .entry EQU $ LD HL,&E9E1 ; Start RELOCATOR LD (&30),HL RST &30 .this EX DE,HL LD HL,rel_table-this ADD HL,DE ; HL has absolute address of rel_table .loop LD C,(HL) INC HL LD B,(HL) ; BC has first entry in table LD A,C OR B JR Z,done ; entry was 0000 so exit loop PUSH HL ; stack current table pointer LD H,B LD L,C ADD HL,DE ; make table entry absolute PUSH HL ; and stack this value LD C,(HL) INC HL LD B,(HL) ; get contents pointed to by entry LD H,B LD L,C ADD HL,DE ; make this absolute LD B,H LD C,L POP HL ; retrieve absolute entry value LD (HL),C INC HL LD (HL),B ; store absolute value at this address POP HL ; get address of previous table entry INC HL ; make HL point at next JR loop .done EQU $ ; end of RELOCATOR KL_NEW_FRAME_FLY EQU &BCD7 KM_TEST_KEY EQU &BB1E COPY_key EQU 9 CTRL_key EQU 23 SHIFT_key EQU 21 .r01 LD HL,tick_block-this ; set-up EVENT LD B,%10000001 LD C,0 .r02 LD DE,int_routine-this CALL KL_NEW_FRAME_FLY RET .int_routine EQU $ ; this is the interrupt routine PUSH BC PUSH DE PUSH HL PUSH AF LD A,COPY_key CALL KM_TEST_KEY JR Z,return LD A,CTRL_key CALL KM_TEST_KEY JR Z,return .r03 CALL scrndump-this .return POP AF POP HL POP DE POP BC RET .tick_block DEFS 9 .FRED DEFS 7 .scrndump EQU $ GRA_TEST_ABSOLUTE EQU &BBF0 MC_PRINT_CHAR EQU &BD2B MC_BUSY_PRINTER EQU &BD2E ; DMP1DUMP .r04 LD IX,FRED-this LD (IX+1),0 ; x coord = 0 LD (IX+2),0 LD (IX+3),&90 ; y coord = 400 LD (IX+4),&01 LD (IX+5),0 ; line count = 0 LD (IX+0),0 ; byte out = 0 .MAIN CALL MC_BUSY_PRINTER JR C,MAIN LD A,&1B CALL MC_PRINT_CHAR ; ESC LD A,&4B CALL MC_PRINT_CHAR ; "K" LD A,&02 CALL MC_PRINT_CHAR LD A,&40 CALL MC_PRINT_CHAR ; &240 .LINE EQU $ LD (IX+0),0 ; byte out = 0 LD (IX+6),0 ; 7-bit count = 0 .BYTE SRA (IX+0) LD E,(IX+1) ; FRED + 1 - 2 = x coord LD D,(IX+2) LD L,(IX+3) ; FRED + 3 - 4 = y coord LD H,(IX+4) CALL GRA_TEST_ABSOLUTE OR A JR Z,NOSET SET 6,(IX+0) ; +0 is byte being built .NOSET INC (IX+6) ; increase bit count LD A,(IX+6) ; and get it CP 7 JR Z,PRINT ; if got 7 bits the print LD L,(IX+3) ; get y coord LD H,(IX+4) DEC HL ; use HL for simple 16 bit maths DEC HL ; move down by 2 (1 pixel) LD (IX+3),L ; then put it back LD (IX+4),H JR BYTE .MID_JMP JR MAIN ; to relative jump more than 128 .PRINT CALL MC_BUSY_PRINTER JR C,PRINT ; wait until it's free LD A,(IX+0) ; get byte output CALL MC_PRINT_CHAR ; and print it INC (IX+1) INC (IX+1) ; move x coord on by 2 JR NZ,NOHIGH INC (IX+2) ; handle high byte if necessary .NOHIGH LD A,(IX+1) SUB &82 JR NZ,RESETY LD A,(IX+2) CP 2 JR Z,ENDLIN ; x coord = &282 .RESETY LD L,(IX+3) LD H,(IX+4) LD DE,&000C ADD HL,DE LD (IX+3),L ; increase y coord by 12 LD (IX+4),H JR LINE .ENDLIN INC (IX+5) ; increment line count LD A,&0A ; Line Feed CALL MC_PRINT_CHAR LD A,&0D ; Carriage Return CALL MC_PRINT_CHAR LD A,SHIFT_key CALL KM_TEST_KEY ; check id SHIFT is pressed JR NZ,BYE LD (IX+1),0 ; set x coord to zero LD (IX+2),0 LD A,(IX+5) ; get line count CP &22 JR NZ,MID_JMP ; have we got 34 lines (7 high) .BYE EQU $ LD A,15 CALL MC_PRINT_CHAR LD A,13 CALL MC_PRINT_CHAR RET .rel_table EQU $ DEFW r01-this+1 DEFW r02-this+1 DEFW r03-this+1 DEFW r04-this+2 ; address in IX operator is 3 and 4 DEFW 0
Screen Dump (Epson)
The Z80 assembler code for the Epson Screen Dump program.
The machine code can be loaded in BASIC using DMPLIST2.BAS and DMPLIST4.BAS.
ORG &8000 .entry EQU $ LD HL,&E9E1 ; Start RELOCATOR LD (&30),HL RST &30 .this EX DE,HL LD HL,rel_table-this ADD HL,DE ; HL has absolute address of rel_table .loop LD C,(HL) INC HL LD B,(HL) ; BC has first entry in table LD A,C OR B JR Z,done ; entry was 0000 so exit loop PUSH HL ; stack current table pointer LD H,B LD L,C ADD HL,DE ; make table entry absolute PUSH HL ; and stack this value LD C,(HL) INC HL LD B,(HL) ; get contents pointed to by entry LD H,B LD L,C ADD HL,DE ; make this absolute LD B,H LD C,L POP HL ; retrieve absolute entry value LD (HL),C INC HL LD (HL),B ; store absolute value at this address POP HL ; get address of previous table entry INC HL ; make HL point at next JR loop .done EQU $ ; end of RELOCATOR KL_NEW_FRAME_FLY EQU &BCD7 KM_TEST_KEY EQU &BB1E COPY_key EQU 9 CTRL_key EQU 23 SHIFT_key EQU 21 .r01 LD HL,tick_block-this ; set-up EVENT LD B,%10000001 LD C,0 .r02 LD DE,int_routine-this CALL KL_NEW_FRAME_FLY RET .int_routine EQU $ ; this is the interrupt routine PUSH BC PUSH DE PUSH HL PUSH AF LD A,COPY_key CALL KM_TEST_KEY JR Z,return LD A,CTRL_key CALL KM_TEST_KEY JR Z,return .r03 CALL scrndump-this .return POP AF POP HL POP DE POP BC RET .tick_block DEFS 9 .FRED DEFS 7 .scrndump EQU $ GRA_TEST_ABSOLUTE EQU &BBF0 MC_PRINT_CHAR EQU &BD2B MC_BUSY_PRINTER EQU &BD2E ; EPSONDUMP .r04 LD IX,FRED-this LD (IX+1),0 ; x coord = 0 LD (IX+2),0 LD (IX+3),&90 ; y coord = 400 LD (IX+4),&01 LD (IX+5),0 ; line count = 0 LD (IX+0),0 ; byte out = 0 LD A,&1B CALL MC_PRINT_CHAR LD A,&41 CALL MC_PRINT_CHAR LD A,&06 CALL MC_PRINT_CHAR .MAIN CALL MC_BUSY_PRINTER JR C,MAIN LD A,&1B CALL MC_PRINT_CHAR ; ESC LD A,&4B CALL MC_PRINT_CHAR ; "K" LD A,&40 CALL MC_PRINT_CHAR LD A,&02 CALL MC_PRINT_CHAR ; &240 .LINE EQU $ LD (IX+0),0 ; byte out = 0 LD (IX+6),0 ; 7-bit count = 0 .BYTE SLA (IX+0) LD E,(IX+1) ; FRED + 1 - 2 = x coord LD D,(IX+2) LD L,(IX+3) ; FRED + 3 - 4 = y coord LD H,(IX+4) CALL GRA_TEST_ABSOLUTE OR A JR Z,NOSET SET 0,(IX+0) ; +0 is byte being built .NOSET INC (IX+6) ; increase bit count LD A,(IX+6) ; and get it CP 7 JR Z,PRINT ; if got 7 bits the print LD L,(IX+3) ; get y coord LD H,(IX+4) DEC HL ; use HL for simple 16 bit maths DEC HL ; move down by 2 (1 pixel) LD (IX+3),L ; then put it back LD (IX+4),H JR BYTE .MID_JMP JR MAIN ; to relative jump more than 128 .PRINT CALL MC_BUSY_PRINTER JR C,PRINT ; wait until it's free LD A,(IX+0) ; get byte output CALL MC_PRINT_CHAR ; and print it INC (IX+1) INC (IX+1) ; move x coord on by 2 JR NZ,NOHIGH INC (IX+2) ; handle high byte if necessary .NOHIGH LD A,(IX+1) SUB &82 JR NZ,RESETY LD A,(IX+2) CP 2 JR Z,ENDLIN ; x coord = &282 .RESETY LD L,(IX+3) LD H,(IX+4) LD DE,&000C ADD HL,DE LD (IX+3),L ; increase y coord by 12 LD (IX+4),H JR LINE .ENDLIN INC (IX+5) ; increment line count LD A,&0A ; Line Feed CALL MC_PRINT_CHAR LD A,&0D ; Carriage Return CALL MC_PRINT_CHAR LD A,SHIFT_key CALL KM_TEST_KEY ; check id SHIFT is pressed JR NZ,BYE LD (IX+1),0 ; set x coord to zero LD (IX+2),0 LD A,(IX+5) ; get line count CP &22 JR NZ,MID_JMP ; have we got 34 lines (7 high) .BYE EQU $ LD A,15 CALL MC_PRINT_CHAR LD A,13 CALL MC_PRINT_CHAR RET .rel_table EQU $ DEFW r01-this+1 DEFW r02-this+1 DEFW r03-this+1 DEFW r04-this+2 ; address in IX operator is 3 and 4 DEFW 0
Sum Numbers
To run Sum Numbers, type:
RUN"PASCAL5"
Trench
To run Trench, type:
RUN"TRENCH"
Unerase
The Z80 assembler code for David Link's Unerase program.
; Unerase a file in CP/M - 04/11/84 ; Copyright David Link 1984 ; A program to unerase a file that has been accidentally ; erased. Should be used immediately after erasing the ; file since if user later, some blocks may have been re-used. ; Format is - UNERA filename DEFCB EQU &5C fnamelen EQU 8 extlen EQU 3 extent EQU 12 dirlen EQU 32 ; CP/M BDOS call numbers OPEN EQU 15 CLOSE EQU 16 SEARCH EQU 17 SRCH_AGAIN EQU 18 MAKE EQU 22 SETDMA EQU 26 ; Default workspace for file reads tbuff EQU 128 ; Macro to call CP/M setting DE and C DOS MAC LD DE,=0 LD C,=1 CALL Dos ENDM ; Macro to call CP/M setting C. SDOS MAC LD C,=0 CALL Dos ENDM ; COM files begin at &100 ORG &100 LD SP,(6) ; set stack to top of TPA DOS DEFCB,SEARCH ; Does file exist? INC A JP NZ,0 ; File exists, return to CCP LD HL,FCBSPACE ; Initialise pointer to current FCB LD (FCBPTR),HL DOS tbuff,SETDMA ; set disc I/O to tbuff DOS DUMFCB,SEARCH ; and search for the first entry in directory More_Search INC A JR Z,End_of_Directory ; No more entries ; Compare found filename with the required filename Continue DEC A ; adjust because we INCed it ADD A,A ; multiply by dirlen to get postion ADD A,A ; of entry in catalogue ADD A,A ADD A,A ADD A,A LD D,0 LD E,A LD HL,tbuff ; point to found file ADD HL,DE Again PUSH HL ; and compare it with required filename INC HL LD B,fnamelen+extlen ; both name and type (8, name : 3, type) LD DE,DEFCB+1 ; filename starts at FCB + 1 Match LD A,(DE) LD C,(HL) RES 7,C ; some CP/Ms set bits on filename CP C ; so make sure top bit is reset for comparison INC HL INC DE JR NZ,NoMatch ; not this one DJNZ Match ; good so far... keep going ; Match found POP HL ; filename match, but... PUSH HL LD A,(HL) ; ... is it erased? CP &E5 ; e% in first byte of directory = erased JR NZ,NoMatch ; not erased... so search some more LD (HL),0 ; it was erased, so unerase it LD DE,(FCBPTR) ; and store the FCB information in LD BC,dirlen ; our temporary table LDIR LD (FCBPTR),DE ; updating our table pointer afterwards ; Search for another entry NoMatch POP HL DOS DUMFCB,SRCH_AGAIN ; search for next entry in directory JR More_Search ; we have now exhausted the directory search and built ; up our table of directory entries for the required file End_of_Dir LD DE,FCBSPACE ; start processing table of matched ; directory entries MAIN_LOOP LD HL,(FCBPTR) ; have we reached end of table? OR A SBC HL,DE JP Z,0 ; finished, so return PUSH DE ; save table pointer LD HL,extent ; address extent byte ADD HL,DE LD A,(HL) ; make an extent of new, LD (DEFCB+extent),a ; unerased file... DOS DEFCB,MAKE POP DE ; recover pointer to FCB... SDOS CLOSE ; and close it LD HL,dirlen ADD HL,DE ; have we reached end of table? EX DE,HL JR MAIN_LOOP Dos PUSH HL PUSH DE PUSH BC CALL 5 POP BC POP DE POP HL RET FCBPTR DEFS 2 DUMFCB DEFM "????????????" DEFW 0,0 DEFS 16 DEFW 0,0 FCBSPACE EQU $
