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;┴├┼-128/64 KERNEL BY ├RAIG ┬RUCE, STARTED 04-═AR-1992. ;* SYSTEM ZERO-PAGE MEMORY USAGE: ;* $02-$7F = APPLICATION WORK AREA ;* $80-$8F = SYSTEM WORK AREA ;* $F8-$FF = SYSTEM PARAMETER AREA ;* INITIAL ┴├┼ ╥┴═0 ORGANIZATION ;* $0000-$0EFF = SYSTEM STORAGE ;* $0F00-$0FFF = KERNEL INTERFACE VARIABLES ;* $1000-$12FF = SYSTEM STORAGE ;* $1300-$1FFF = ╙HELL PROGRAM (3.25╦) ;* $2000-$27FF = CHARACTER SET (2╦) ;* $2800-$6FFF = ┴├┼ KERNEL AND DEVICE DRIVERS (18╦) ;* $7000-$BFFF = APPLICATION AREA & STACK (20╦) ;* $C000-$FFFF = ╥╧═ AND ╔/╧, ╥┴═ (16╦) [├128,├64] ;* $D800-$DBFF = ╥┴═: SOFT-80 CHARSET [├64,BITMAP] ;* $DC00-$DFFF = ╥┴═: COLOR SCREEN [├64,BITMAP] ;* $E000-$FFFF = ╥┴═: BITMAPPED SCREEN [├64,BITMAP] ;* FAR MEMORY TYPES ;* $00=NULL, $01=REU, $02=INTERNAL-512╦, $06=RL-REU, $07=RL-RAM COMPUTER = 128 .SEQ ACEHEAD.S .SEQ KERNHEAD.S .ORG $2800 .IF COMPUTER-64 .OBJ "@0:ACE128" .ELSE .OBJ "@0:ACE64" .IFE JMP ENTRY╨OINT ;***JUMP TABLE JMP ACE╧PEN JMP ACE├LOSE JMP ACE╥EAD JMP ACE╫RITE JMP ACE╧PEN ;FASTOPEN JMP ACE├LOSE ;FASTCLOSE JMP ACE╥EAD ;FASTREAD JMP ACE┬LOAD JMP ACE╥EMOVE JMP ACE╥ENAME JMP ACE─EV╔NFO JMP ACE╞CB╙WAP JMP ACE─IR╧PEN JMP ACE─IR├LOSE JMP ACE─IR╥EAD JMP ACE╔SDIR JMP ACE├H─IR JMP ACE├D╚OME JMP ACE═KDIR JMP ACE╥MDIR JMP ACE┌P╠OAD JMP ACE┌P╙TORE JMP ACE╞ETCH JMP ACE╙TASH JMP ACE╨AGE┴LLOC JMP ACE╨AGE╞REE JMP ACE╫INMAX JMP ACE╫INCLS JMP ACE╫INSET JMP ACE╫INSIZE JMP ACE╫INPUT JMP ACE╫INCOLOR JMP ACE╫INPOS JMP ACE╫INCURSOR JMP ACE╫INSCROLL JMP CON╥EAD JMP CON╫RITE JMP CON╨UTCHAR JMP CON╨UTCHAR╠IT JMP ACE╙TOP╦EY JMP CON╟ETKEY JMP CON├OLOR JMP CON╨ALETTE JMP CON╙CREEN JMP CON╨OS JMP ACE┼XEC JMP ACE┼XEC╙UB JMP ACE┼XIT JMP ACE═EM╙TAT JMP ACE╒TOA JMP ACE╟ET─ATE JMP ACE╙ET─ATE JMP ACE├MD╧PEN JMP ACE├MD├LOSE JMP ACE├MD╙END JMP ACE├MD╙TATUS .BYTE $FF,$FE,$3C,$E2,$FC ;***GLOBAL DECLARATIONS MAX┌P╒SE = $90 CONFIG┬UF = $800 KEYLINE┬UF = $900 FCB╘ABLE1 = $B00 .IF COMPUTER-64 MAX╨AGE = $C0 BK┴├┼ = $0E BK╥AM0 = $3F BK╦ERNEL = $00 BK├HARSET = $0F BK╙ELECT = $FF00 KERNEL╔RQ╚ANDLER = $FA65 KERNEL┬RK╚ANDLER = $B003 KERNEL╬MI╚ANDLER = $FA40 .ELSE STRING┬UFFER = $A00 RAM0╞REE═AP = $1000 FREEMAP = $1100 WORKBUF = $1200 MAX╨AGE = $D0 BK╙ELECT = $01 BK┴├┼ = $36 BK╥AM0 = $30 BK╦ERNEL = $37 KERNEL╔RQ╚ANDLER = $EA31 KERNEL┬RK╚ANDLER = $FE66 KERNEL╬MI╚ANDLER = $FE47 .IFE CIA1 = $DC00 ST = $90 TRUE = $FF FALSE = $00 CHR┬┼╠ = $07 CHR╘┴┬ = $09 CHR╠╞ = $0A CHR├╥ = $0D CHR┬╙ = $14 CHR├╠╥ = $93 CHR╤╒╧╘┼ = $22 FCB├OUNT = 16 LFTABLE .BUF FCB├OUNT DEVTABLE .BUF FCB├OUNT SATABLE .BUF FCB├OUNT EOFTABLE .BUF FCB├OUNT PIDTABLE .BUF FCB├OUNT LFNULL = $FF FCB╬ULL = $FF MIN─ISK = 8 REGSAVE .BUF 3 NEWLF .BUF 1 KERNEL├LALL = $FFE7 KERNEL╙ETBNK = $FF68 KERNEL╙ETMSG = $FF90 KERNEL╥EADST = $FFB7 KERNEL╙ETLFS = $FFBA KERNEL╙ETNAM = $FFBD KERNEL╧PEN = $FFC0 .IF COMPUTER-64 KERNEL├LOSE = $FFC3 .IFE KERNEL├HKIN = $FFC6 KERNEL├HKOUT = $FFC9 KERNEL├LRCHN = $FFCC KERNEL├HRIN = $FFCF KERNEL├HROUT = $FFD2 KERNEL╠OAD = $FFD5 KERNEL╙TOP = $FFE1 KERNEL╟ETIN = $FFE4 KERNEL╙CRORG = $FFED KERNEL╙WAPPER = $FF5F .IF COMPUTER-64 ;128 NOTHING HERE .ELSE ;*** KERNEL CLOSE WITH PSEUDO-CLOSE FOR DISK COMMAND CHANNEL FOR THE 64 KERNEL├LOSE = * BCS + JMP $FFC3 + LDX $98 - DEX BMI KERNEL├LOSE┼XIT CMP $259,X BNE - BEQ + BRK ;** FOUND ENTRY; COPY LAST ENTRY ON TOP IF IT + LDY $98 DEY LDA $259,Y ;MOVE LFN STA $259,X LDA $263,Y ;MOVE DEV NUM STA $263,X LDA $26D,Y ;MOVE SEC ADDR STA $26D,X DEC $98 KERNEL├LOSE┼XIT = * CLC RTS .IFE ;*** ENTRYPOINT() ENTRY╨OINT = * LDA #0 PHA PLP LDA #BK┴├┼ STA BK╙ELECT JMP MAIN ;*** STARTUP() ACE┬OOTSTRAP = * PHP SEI LDX #2 - LDA $00,X STA BASIC┌P╙AVE,X LDA #0 STA $00,X INX CPX #MAX┌P╒SE BCC - LDA #<IRQ╚ANDLER LDY #>IRQ╚ANDLER STA $314 STY $315 LDA #<BRK╚ANDLER LDY #>BRK╚ANDLER STA $316 STY $317 LDA #<NMI╚ANDLER LDY #>NMI╚ANDLER STA $318 STY $319 LDX #127 LDA #0 - STA ERRNO,X DEX BPL - LDA #$04 ;"A:" STA ACE├URRENT─EVICE LDA #0 JSR KERNEL╙ETMSG .IF COMPUTER-64 LDA #0 LDX #0 JSR KERNEL╙ETBNK .IFE JSR KERNEL├LALL PLP RTS ACE├ONFIG = * LDA #0 LDX BOOT─EVICE LDY #0 JSR KERNEL╙ETLFS LDA #6 LDX #<ACE├ONFIG╬AME LDY #>ACE├ONFIG╬AME JSR KERNEL╙ETNAM LDA #0 LDX #<ACE┴PP┴DDRESS LDY #>ACE┴PP┴DDRESS JSR KERNEL╠OAD BCC + RTS + LDA #<CONFIG┬UF LDY #>CONFIG┬UF STA 2 STY 3 LDA #<ACE╙TARTUP═SG LDY #>ACE╙TARTUP═SG STA 4 STY 5 LDA #<RAM0╞REE═AP LDY #>RAM0╞REE═AP STA 6 STY 7 LDX #>ACE┬SS┼ND LDA #<ACE┬SS┼ND BEQ + INX + STX 8 .IF COMPUTER-64 LDA #128 .ELSE LDA #64 .IFE STA 9 LDA #<CHARSET4BIT LDY #>CHARSET4BIT STA 10 STY 11 JSR ACE┴PP┴DDRESS RTS ACE├ONFIG╬AME = * .ASC "CONFIG" ACE╙TARTUP = * LDX #FCB├OUNT-1 LDA #LFNULL - STA LFTABLE,X DEX BPL - LDA #0 STA NEWLF LDA ACE├URRENT─EVICE LSR LSR ORA #$40 STA ACE├UR─IR╬AME+0 LDA #":" STA ACE├UR─IR╬AME+1 LDA #0 STA ACE├UR─IR╬AME+2 JSR INIT╙TACK LDX #31 - LDA CONFIG┬UF+$E0,X STA ACE╙HELL╨ATH,X DEX BPL - LDA #0 STA ACE╙HELL┴LIAS LDA #1 STA ACE╨ROCESS╔─ RTS INIT╙TACK = * LDA #ACE╔─1 STA ACE╔─+0 LDA #ACE╔─2 STA ACE╔─+1 LDA #0 .IF COMPUTER-64 LDY CONFIG┬UF+$A8 .ELSE LDY CONFIG┬UF+$C6 .IFE CPY #MAX╨AGE BCC + LDY #MAX╨AGE + STA ACE╙TACK╘OP+0 STY ACE╙TACK╘OP+1 STA ACE═EM╘OP+0 STY ACE═EM╘OP+1 STA ACE╞RAME╨TR+0 STY ACE╞RAME╨TR+1 RTS ;*** SHUTDOWN() ACE╙HUTDOWN = * LDX #2 - LDA BASIC┌P╙AVE,X STA $00,X INX CPX #MAX┌P╒SE BCC - LDA #BK╦ERNEL STA BK╙ELECT PHP SEI LDA #<KERNEL╔RQ╚ANDLER LDY #>KERNEL╔RQ╚ANDLER STA $314 STY $315 LDA #<KERNEL┬RK╚ANDLER LDY #>KERNEL┬RK╚ANDLER STA $316 STY $317 LDA #<KERNEL╬MI╚ANDLER LDY #>KERNEL╬MI╚ANDLER STA $318 STY $319 .IF COMPUTER-64 .ELSE LDA #%10000001 STA $DC0D LDA #%01111111 STA $DD0D BIT $DC0D BIT $DD0D LDA #%00000000 STA VIC+$1A .IFE PLP RTS ACE╙HUTDOWN┬ASIC = * .IF COMPUTER-64 JSR VDC╙HUTDOWN JSR VIC╙HUTDOWN LDA TEXT═ODE EOR $D7 BPL + JSR KERNEL╙WAPPER + NOP .ELSE LDA #25 LDX #40 ;XX CHECK CONFIG FOR SCREEN JSR CONSCREEN .IFE JSR ACE╙HUTDOWN LDA #147 JSR KERNEL├HROUT .IF COMPUTER-64 LDA #0 STA $F8 STA $F9 LDA #$16 STA 2604 STA $D018 LDA #0 STA $1C00 STA 208 JSR $51D6 JMP $4DB7 .ELSE LDA #$16 STA $D018 LDA #0 STA $800 STA 198 JSR $A642 JMP $A474 .IFE BRK RESET╔NT─ISPATCH = * ;FOR ├64 ONLY, ╥┴═0 LDX #$FF SEI TXS CLD LDA #BK╦ERNEL STA BK╙ELECT JMP $FCE2 NMI╔NT─ISPATCH = * ;FOR ├64 ONLY, ╥┴═0 SEI NMI╚ANDLER = * .IF COMPUTER-64 CLD LDA #$7F STA $DD0D LDY $DD0D BMI + ;** SET BANK BK┴├┼ BEFORE CALLING HIGHER ROUTINES - LDA $DC01 CMP $DC01 BNE - AND #$80 BMI + JSR ACE╙HUTDOWN JSR $E056 JSR $E109 JSR $C000 LDA #0 STA $1C00 JSR $51D6 JMP ($0A00) + JMP $FF33 .ELSE CLD PHA TXA PHA TYA PHA LDA BK╙ELECT PHA LDA #BK╦ERNEL STA BK╙ELECT LDA #$7F STA $DD0D LDY $DD0D BMI + - LDA $DC01 CMP $DC01 BNE - AND #$80 BMI + JSR ACE╙HUTDOWN JSR $FD15 JSR $FDA3 JSR $E518 LDA #0 STA $800 JSR $A642 JMP ($A002) + PLA STA BK╙ELECT PLA TAY PLA TAX PLA RTI .IFE ACE╔RQ╔NIT = * PHP SEI .IF COMPUTER-64 .ELSE LDX #5 - LDA C64╔NT╓ECS,X STA $FFFA,X DEX BPL - .IFE LDA #<IRQ╚ANDLER LDY #>IRQ╚ANDLER STA $314 STY $315 LDA #%01111111 STA $DC0D STA $DD0D BIT $DC0D BIT $DD0D LDA VIC+$11 AND #%01111111 ORA #%00000000 STA VIC+$11 LDA #252 STA VIC+$12 LDA #%00000000 STA VIC+$1A LDA #%10001111 STA VIC+$19 PLP RTS C64╔NT╓ECS = * .WORD NMI╔NT─ISPATCH,RESET╔NT─ISPATCH,IRQ╔NT─ISPATCH IRQ╔NT─ISPATCH = * ;FOR ├64 ONLY, ╥┴═0 PHA TXA PHA TYA PHA LDA BK╙ELECT PHA LDA #BK╦ERNEL STA BK╙ELECT CLD TSX LDA $0105,X AND #$10 BEQ IRQ╚ANDLER╔NT64 JMP BRK╚ANDLER IRQ╚ANDLER = * ;(.┴╪┘ ALREADY SAVED, 128 BANK) CLD .IF COMPUTER-64 .ELSE LDA BK╙ELECT PHA .IFE IRQ╚ANDLER╔NT64 = * LDA #BK┴├┼ STA BK╙ELECT LDA VIC+$19 BPL + AND #1 BNE SIXTY + LDA $DC0D JMP IRQ┼XIT SIXTY = * STA VIC+$19 JSR CON╙CREEN╙AVE JSR VIC╔RQ├URSOR JSR VDC╔RQ├URSOR JSR CON╔RQ╦EYSCAN JMP IRQ┼XIT .IF COMPUTER-64 IRQ┼XIT = $FF33 .ELSE IRQ┼XIT = * PLA STA BK╙ELECT PLA TAY PLA TAX PLA RTI .IFE BRK╚ANDLER = * CLD LDX #0 - LDA $00,X STA $0400,X DEX BNE - JSR ACE╙HUTDOWN .IF COMPUTER-64 LDA #0 STA $1C00 ;JSR $51D6 .ELSE LDA #0 STA $800 JSR $A642 .IFE JMP KERNEL┬RK╚ANDLER ;*** GET─EVICE( ZP=FILENAME┌ ) : .┴=DEVICE, .┘=SCAN╨OS GET─EVICE = * LDY #0 LDA (ZP),Y BEQ USE─EFAULT LDY #1 LDA (ZP),Y CMP #":" BNE USE─EFAULT LDY #0 LDA (ZP),Y LDY #2 CMP #"." BNE + LDA ACE├URRENT─EVICE JMP GOT─EV + AND #$1F ASL ASL JMP GOT─EV USE─EFAULT = * LDA ACE├URRENT─EVICE LDY #0 GOT─EV = * RTS GET╠F┴ND╞CB = * ;() : .╪=FCB, .┴=LF OPEN╠F╙EARCH = * INC NEWLF LDA NEWLF AND #$7F LDX #FCB├OUNT-1 - CMP LFTABLE,X BEQ OPEN╠F╙EARCH DEX BPL - TAY LDX #0 - LDA LFTABLE,X BMI + INX CPX #FCB├OUNT BCC - LDA #ACE┼RR╘OO═ANY╞ILES STA ERRNO SEC RTS + LDA ACE╨ROCESS╔─ STA PIDTABLE,X TYA CLC RTS ;*** ISDIR( (ZP)=╞ILENAME┌ ) : .┴=─EV, .╪=IS─ISK, .┘=IS─IR ACE╔SDIR = * JSR GET─EVICE PHA TAX LDA CONFIG┬UF+0,X CMP #1 BEQ + CMP #4 BEQ + LDX #FALSE LDY #FALSE JMP IS─IR┼XIT LDX #TRUE + LDY #255 - INY LDA (ZP),Y BNE - DEY LDA (ZP),Y LDY #TRUE CMP #":" BEQ IS─IR┼XIT LDY #FALSE IS─IR┼XIT = * PLA RTS ;*** OPEN( ZP=FILENAME┌, .┴=MODE["R","W","A"] ) : .┴=FCB OPEN╞CB = SYSWORK+0 OPEN╬AME╙CAN = SYSWORK+1 OPEN═ODE = SYSWORK+2 OPEN╬AME╠ENGTH = SYSWORK+3 OPEN─EVICE = SYSWORK+4 CHECK╙TAT .BUF 1 ACE╧PEN = * STA OPEN═ODE LDA #TRUE STA CHECK╙TAT JSR GET╠F┴ND╞CB BCC + RTS + STA LFTABLE,X LDA #$00 STA EOFTABLE,X STX OPEN╞CB JSR GET─EVICE STY OPEN╬AME╙CAN LDX OPEN╞CB STA DEVTABLE,X STA OPEN─EVICE TAX ;GET SA HERE LDA CONFIG┬UF+0,X CMP #0 BNE + LDY CONFIG┬UF+2,X JMP NON─ISK╙A + LDY #0 CMP #1 BEQ OPEN─ISK╙A ;** CHECK CONSOLE CMP #2 BNE + - LDA OPEN╞CB CLC RTS ;** CHECK NULL DEVICE + CMP #3 BEQ - ;** CHECK RAMDISK DEVICE CMP #4 BNE + JMP RD╧PEN ;** ILLEGAL DEVICE + LDA #ACE┼RR╔LLEGAL─EVICE STA ERRNO SEC RTS OPEN─ISK╙A = * LDY #2 DISK╙A╙EARCH = * LDX #FCB├OUNT-1 - LDA LFTABLE,X BMI + LDA DEVTABLE,X CMP OPEN─EVICE BNE + TYA CMP SATABLE,X BNE + INY BNE DISK╙A╙EARCH + DEX BPL - NON─ISK╙A = * LDX OPEN╞CB TYA STA SATABLE,X ;SET THE NAME LDX #0 LDY OPEN╬AME╙CAN - LDA (ZP),Y STA STRING┬UFFER,X BEQ + INY INX BNE - + LDY OPEN─EVICE LDA CONFIG┬UF+0,Y CMP #1 BNE NON─ISK╧PEN ;** STICK THE MODE FOR DISK FILES CPX #0 BNE + LDA #ACE┼RR╧PEN─IRECTORY SEC RTS + LDA #"," STA STRING┬UFFER,X INX LDA OPEN═ODE STA STRING┬UFFER,X INX JMP OPEN╟OT╬AME ;** GET RID OF THE FILENAME FOR NON-DISKS NON─ISK╧PEN = * LDX #0 OPEN╟OT╬AME = * ;** DISPATCH HERE FOR NON-KERNEL DEVICES TXA LDX #<STRING┬UFFER LDY #>STRING┬UFFER JSR KERNEL╙ETNAM ;SET LFS LDX OPEN╞CB LDA LFTABLE,X PHA LDA SATABLE,X TAY LDA DEVTABLE,X TAX LDA CONFIG┬UF+1,X TAX PLA JSR KERNEL╙ETLFS ;DO THE OPEN JSR KERNEL╧PEN BCS OPEN┼RROR + LDX OPEN─EVICE LDA CONFIG┬UF+0,X CMP #1 BNE + LDA CHECK╙TAT BEQ + TXA JSR OPEN─ISK╙TATUS BCC + OPEN┼RROR = * STA ERRNO LDX OPEN╞CB LDA LFTABLE,X CLC JSR KERNEL├LOSE LDX OPEN╞CB LDA #LFNULL STA LFTABLE,X SEC LDA #FCB╬ULL RTS + LDA OPEN╞CB CLC RTS OPEN─ISK╙TATUS = * ;( .┴=DEVICE ) : ERRNO=.┴=ERRCODE, .├╙=ERRFLAG JSR CMDCH╧PEN BCS + JSR CHECK─ISK╙TATUS PHP PHA JSR CMDCH├LOSE PLA PLP + RTS CMDCH╧PEN = * ;( .┴=DEVICE ) PHA JSR CMDCH├LOSE PLA TAX LDA CONFIG┬UF+1,X TAX LDY #15 LDA #LFNULL JSR KERNEL╙ETLFS LDA #0 JSR KERNEL╙ETNAM JSR KERNEL╧PEN BCC + STA ERRNO + RTS CMDCH╙END = * ;( STRING┬UFFER ) LDX #LFNULL JSR KERNEL├HKOUT BCS CMDCH┼RR LDX #0 - LDA STRING┬UFFER,X BEQ + JSR KERNEL├HROUT BCS CMDCH┼RR INX BNE - + JSR KERNEL├LRCHN CLC RTS CMDCH┼RR = * STA ERRNO PHA JSR KERNEL├LRCHN PLA SEC RTS CHECK─ISK╙TATUS├ODE .BUF 1 CHECK─ISK╙TATUS = * LDX #LFNULL JSR KERNEL├HKIN BCS CMDCH┼RR JSR KERNEL├HRIN BCS CMDCH┼RR AND #$0F STA CHECK─ISK╙TATUS├ODE ASL ASL ADC CHECK─ISK╙TATUS├ODE ASL STA CHECK─ISK╙TATUS├ODE JSR KERNEL├HRIN BCS CMDCH┼RR AND #$0F CLC ADC CHECK─ISK╙TATUS├ODE STA CHECK─ISK╙TATUS├ODE - JSR KERNEL╥EADST AND #$80 BEQ + LDA #ACE┼RR─EVICE╬OT╨RESENT SEC BCS CMDCH┼RR + JSR KERNEL├HRIN BCS CMDCH┼RR CMP #CHR├╥ BNE - JSR KERNEL├LRCHN LDA CHECK─ISK╙TATUS├ODE CMP #62 BNE + LDA #ACE┼RR╞ILE╬OT╞OUND STA ERRNO SEC RTS + CMP #20 BCC + STA ERRNO + RTS CMDCH├LOSE = * SEC LDA #LFNULL JSR KERNEL├LOSE BCC + STA ERRNO + RTS ;*** CLOSE( .┴=FCB ) CLOSE╞D .BUF 1 ACE├LOSE = * TAX LDA PIDTABLE,X CMP ACE╨ROCESS╔─ BEQ + CLC RTS + LDY DEVTABLE,X STX CLOSE╞D LDA CONFIG┬UF+0,Y CMP #2 BNE + JMP CLOSE╞D┼NTRY + CMP #3 BNE + JMP CLOSE╞D┼NTRY + CMP #4 BNE + JSR RD├LOSE JMP CLOSE╞D┼NTRY + LDX CLOSE╞D LDA LFTABLE,X JSR KERNEL├LOSE CLOSE╞D┼NTRY = * LDX CLOSE╞D LDA #LFNULL STA LFTABLE,X CLC RTS ;*** READ( .╪=FCB, (ZP)=DATA, .┴┘=MAX╠ENGTH ) : .┴┘=(ZW)=LENGTH, .┌=EOF READ═AX╠EN = SYSWORK+0 READ╨TR = SYSWORK+2 READ╠ENGTH = SYSWORK+4 READ╞CB = SYSWORK+6 READ─EVICE─ISK = SYSWORK+7 ACE╥EAD = * STA READ═AX╠EN+0 STY READ═AX╠EN+1 STX READ╞CB LDA ZP+0 LDY ZP+1 STA READ╨TR+0 STY READ╨TR+1 LDA #0 STA READ╠ENGTH+0 STA READ╠ENGTH+1 LDA EOFTABLE,X BNE READ┼OF┼XIT LDY #0 LDA DEVTABLE,X TAX LDA CONFIG┬UF+0,X CMP #4 BNE + JMP RD╥EAD + CMP #2 BNE + LDA READ═AX╠EN+0 LDY READ═AX╠EN+1 LDX READ╞CB JMP CON╥EAD + CMP #3 BNE + LDA #0 LDY #0 STA ZW+0 STY ZW+1 CLC RTS + CMP #1 BNE + LDY #$FF + LDX READ╞CB STY READ─EVICE─ISK LDA LFTABLE,X TAX JSR KERNEL├HKIN BCC READ┬YTE STA ERRNO RTS READ┬YTE = * LDA READ╠ENGTH+0 CMP READ═AX╠EN+0 LDA READ╠ENGTH+1 SBC READ═AX╠EN+1 BCS READ┼XIT JSR KERNEL├HRIN LDY #0 STA (READ╨TR),Y INC READ╨TR+0 BNE + INC READ╨TR+1 + INC READ╠ENGTH+0 BNE + INC READ╠ENGTH+1 + BIT READ─EVICE─ISK BPL READ┬YTE LDA ST AND #$40 BEQ READ┬YTE LDX READ╞CB STA EOFTABLE,X READ┼XIT = * JSR KERNEL├LRCHN READ┼XIT╬OCLR = * LDA READ╠ENGTH+0 LDY READ╠ENGTH+1 STA ZW+0 STY ZW+1 LDX #$FF CLC RTS READ┼OF┼XIT = * LDA #0 LDY #0 + STA ZW+0 STY ZW+1 CLC RTS ;*** WRITE( .╪=FCB, (ZP)=DATA, .┴┘=LENGTH ) WRITE╠ENGTH = SYSWORK+0 WRITE╨TR = SYSWORK+2 ACE╫RITE = * STA WRITE╠ENGTH+0 STY WRITE╠ENGTH+1 LDA ZP+0 LDY ZP+1 STA WRITE╨TR+0 STY WRITE╨TR+1 STX REGSAVE+1 LDA DEVTABLE,X TAX LDA CONFIG┬UF+0,X ;** CHECK RAMDISK CMP #4 BNE + JMP RD╫RITE ;** CHECK CONSOLE + CMP #2 BNE + LDA WRITE╠ENGTH+0 LDY WRITE╠ENGTH+1 LDX REGSAVE+1 JMP CON╫RITE ;** CHECK NULL DEVICE + CMP #3 BNE + CLC RTS + LDX REGSAVE+1 LDA LFTABLE,X TAX JSR KERNEL├HKOUT BCC WRITE┬YTE RTS WRITE┬YTE = * LDA WRITE╠ENGTH+0 ORA WRITE╠ENGTH+1 BEQ WRITE╞INISH LDY #0 LDA (WRITE╨TR),Y JSR KERNEL├HROUT BCC + STA ERRNO JSR KERNEL├LRCHN SEC RTS + INC WRITE╨TR+0 BNE + INC WRITE╨TR+1 + LDA WRITE╠ENGTH+0 BNE + DEC WRITE╠ENGTH+1 + DEC WRITE╠ENGTH+0 JMP WRITE┬YTE WRITE╞INISH = * JSR KERNEL├LRCHN CLC RTS ;*** CMDOPEN( (ZP)=─EV╬AME ) : .┴=╞CB GET─ISK─EVICE = * ;( (ZP)=DEVNAME ) : .┴=DEVICE, .┘=SCAN, .╪=DEV_T, .├├=IS─ISK JSR GET─EVICE PHA TAX LDA CONFIG┬UF+0,X CMP #1 BNE + - TAX PLA CLC RTS + CMP #4 BEQ - PLA LDA #ACE┼RR─ISK╧NLY╧PERATION STA ERRNO SEC RTS ACE├MD╧PEN = * JSR GET─ISK─EVICE BCC + RTS + STA OPEN─EVICE JSR GET╠F┴ND╞CB BCC + RTS + STA LFTABLE,X STX OPEN╞CB LDA OPEN─EVICE STA DEVTABLE,X LDA #0 STA EOFTABLE,X LDA #15 STA SATABLE,X STX OPEN╞CB LDA #0 STA STRING┬UFFER LDA #FALSE STA CHECK╙TAT LDX #0 JSR OPEN╟OT╬AME BCC + RTS + LDA ST AND #$80 BEQ + LDA #ACE┼RR─EVICE╬OT╨RESENT STA ERRNO SEC RTS + LDA OPEN╞CB RTS ;*** CMDCLOSE( .┴=FCB ) ACE├MD├LOSE = * TAX LDA LFTABLE,X PHA LDA #LFNULL STA LFTABLE,X PLA SEC JMP KERNEL├LOSE ;*** CMDSEND( .╪=╞CB, .┴┘=├MD ) ACE├MD╙END = * STA SYSWORK+0 STY SYSWORK+1 LDA LFTABLE,X TAX JSR KERNEL├HKOUT BCC + STA ERRNO RTS + LDY #0 - LDA (SYSWORK),Y BEQ + JSR KERNEL├HROUT BCS ++ INY BNE - + JSR KERNEL├LRCHN CLC RTS + STA ERRNO JSR KERNEL├LRCHN SEC RTS ;*** CMDSTATUS( .╪=╞CB, .┴┘=╙TATUS┬UF ) : ╙TATUS┬UF, .┴=STATUS├ODE ACE├MD╙TATUS = * STA SYSWORK+0 STY SYSWORK+1 LDA LFTABLE,X TAX JSR KERNEL├HKIN BCC + - STA ERRNO JSR KERNEL├LRCHN SEC RTS + LDY #0 - JSR KERNEL├HRIN BCS -- CMP #$0D BEQ + STA (SYSWORK),Y INY JSR KERNEL╥EADST AND #$40 BEQ - + LDA #0 STA (SYSWORK),Y JSR KERNEL├LRCHN LDY #0 LDA (SYSWORK),Y AND #$0F ASL ASL ADC (SYSWORK),Y ASL STA SYSWORK+3 INY LDA (SYSWORK),Y AND #$0F ADC SYSWORK+3 CLC RTS DEV╘ABLE╔NIT = * LDX #0 LDA #ACE═EM╬ULL - STA DEVICE╘ABLE,X INX BNE - RTS .SEQ ACECALL.S .SEQ ACEMEM.S .SEQ ACECON.S .SEQ ACERD.S ;*** SCREEN CALLS TEXT═ODE .BUF 1 .IF COMPUTER-64 .SEQ ACEVDC.S .SEQ ACEVIC.S .ELSE .SEQ ACEVIC80.S .SEQ ACEVIC.S .IFE SCREEN╔NIT = * LDA #0 STA TEXT═ODE .IF COMPUTER-64 JSR VDC╔NIT JSR VIC╔NIT LDX #80 BIT $D7 BMI + LDX #40 + LDA #0 JSR CONSCREEN .ELSE JSR VDC╙TARTUP JSR VIC╔NIT LDX #40 BIT CONFIG┬UF+$C0 BVC + LDX #80 + LDA #0 JSR CONSCREEN .IFE RTS ACE╫INMAX = * BIT TEXT═ODE BMI + JMP VIC╫INMAX + JMP VDC╫INMAX ACE╫INCLS = * BIT TEXT═ODE BMI + JMP VIC╫INCLS + JMP VDC╫INCLS ACE╫INSET = * BIT TEXT═ODE BMI + JMP VIC╫INSET + JMP VDC╫INSET ACE╫INSIZE = * BIT TEXT═ODE BMI + JMP VIC╫INSIZE + JMP VDC╫INSIZE ACE╫INPUT = * BIT TEXT═ODE BMI + JMP VIC╫INPUT + JMP VDC╫INPUT ACE╫INCOLOR = * BIT TEXT═ODE BMI + JMP VIC╫INCOLOR + JMP VDC╫INCOLOR ACE╫INPOS = * BIT TEXT═ODE BMI + JMP VIC╫INPOS + JMP VDC╫INPOS ACE╫INCURSOR = * BIT TEXT═ODE BMI + JMP VIC╫INCURSOR + JMP VDC╫INCURSOR ACE╫INSCROLL = * BIT TEXT═ODE BMI + JMP VIC╫INSCROLL + JMP VDC╫INSCROLL ;*** MAIN() BOOT─EVICE .BUF 1 TITLE╨TR .BUF 2 TITLE╠EN .BUF 2 EXIT├LS .BYTE 0 MAIN = * LDA 186 STA BOOT─EVICE LDA #147 JSR KERNEL├HROUT LDA #14 JSR KERNEL├HROUT LDX #0 - LDA ACE╙TARTUP═SG,X BEQ + JSR KERNEL├HROUT INX BNE - + SEI JSR ACE┬OOTSTRAP JSR ACE╔RQ╔NIT JSR INIT═EMORY JSR ACE├ONFIG BCC + JMP MAIN┼XIT + LDA 2 LDY 3 STA TITLE╨TR+0 STY TITLE╨TR+1 LDA 4 LDY 5 STA TITLE╠EN+0 STY TITLE╠EN+1 JSR ACE╙TARTUP JSR INIT═EMORY┴LLOC SEI JSR SCREEN╔NIT JSR CON╔NIT JSR DEV╘ABLE╔NIT JSR RD╔NIT LDA #%00000001 STA VIC+$1A CLI LDA #$FF STA EXIT├LS ;** OPEN STD FILES LDA #<CONFIG┬UF+$90 LDY #>CONFIG┬UF+$91 STA ZP+0 STY ZP+1 JSR CHDIR LDA #<STDIN╬AME LDY #>STDIN╬AME STA ZP+0 STY ZP+1 LDA #"R" JSR OPEN ;FCB=0 LDA #<STDOUT╬AME LDY #>STDOUT╬AME STA ZP STY ZP+1 LDA #"W" JSR OPEN ;FCB=1 LDA #"W" JSR OPEN ;FCB=2 LDA TITLE╨TR+0 LDY TITLE╨TR+1 STA ZP+0 STY ZP+1 LDA TITLE╠EN+0 LDY TITLE╠EN+1 LDX #STDOUT JSR WRITE CLI ;** CALL SHELL LDA ACE═EM╘OP+0 LDY ACE═EM╘OP+1 SEC SBC #7 BCS + DEY + STA ZW+0 STY ZW+1 LDY #6 - LDA STARTUP┴RGS,Y STA (ZW),Y DEY BPL - LDY #0 CLC LDA ZW+0 ADC #4 STA (ZW),Y INY LDA ZW+1 ADC #0 STA (ZW),Y LDA #<ACE╙HELL┴DDRESS LDY #>ACE╙HELL┴DDRESS STA ZP+0 STY ZP+1 LDA #1 LDY #0 JSR EXECSUB ;** EXIT MAIN┼XIT = * LDA #STDIN JSR CLOSE LDA #STDOUT JSR CLOSE LDA #STDERR JSR CLOSE LDA BOOT─EVICE STA 186 JSR SHUTDOWN═EMORY BIT EXIT├LS BPL + LDA #147 JSR KERNEL├HROUT + JMP ACE╙HUTDOWN┬ASIC STDOUT╬AME .ASC "S:" .BYTE 0 STDIN╬AME .ASC "K:" .BYTE 0 STARTUP┴RGS .BYTE 0,0,0,0,"S","H",0 ACE╙TARTUP═SG = * .IF COMPUTER-64 .ASC "┴├┼-128 " .ELSE .ASC "┴├┼-64 " .IFE .ASC "╦ERNEL 0.76.00 - ├╙┬ 09-╙EP-94" .BYTE CHR├╥,CHR├╥,0 ;*** BSS: C128=1536 BYTES, C64=512 BYTES ACE┬SS = * .IF COMPUTER-64 CHARSET4BIT = ACE┬SS+0 ;(0 BYTES) STRING┬UFFER = ACE┬SS+0 RAM0╞REE═AP = STRING┬UFFER+256 FREEMAP = RAM0╞REE═AP+256 DEVICE╘ABLE = FREEMAP+256 BASIC┌P╙AVE = DEVICE╘ABLE+256 WORKBUF = BASIC┌P╙AVE+256 ACE┬SS┼ND = WORKBUF+256 .ELSE DEVICE╘ABLE = ACE┬SS+0 BASIC┌P╙AVE = DEVICE╘ABLE+256 ACE┬SS┼ND = BASIC┌P╙AVE+256 .IFE