PR#3 PREFIX /A2OSX.BUILD LOMEM $A00 INC 1 AUTO 6 *-------------------------------------- * Kernel ZP Aux *-------------------------------------- ZPPtr1 .EQ ZPKERNEL ZPPtr2 .EQ ZPKERNEL+2 ZPPtr3 .EQ ZPKERNEL+4 ZPPtr4 .EQ ZPKERNEL+6 *-------------------------------------- Kernel.Init sei ldx #$FF txs sta SETALTZP stx A2osX.SaveSM stx A2osX.SaveSX sta CLRALTZP Make sure MAIN ZP is enabled for X.PRINT.F *-------------------------------------- Kernel.Init2 >LDAXI MSG.Init2 jsr PrintFAX >LDYAI A2osX.GP >STYA ZPPtr1 >LDYAI A2osX.SYSCALL >STYA ZPPtr2 >LDYAI A2osX.D1-A2osX.GP^$FFFF >STYA ZPPtr3 jsr Kernel.Move sta CLRALTZP >LDAXI MSG.D2 jsr PrintFAX sta SETALTZP bit RRAMWRAMBNK2 bit RRAMWRAMBNK2 >LDYAI A2osX.D2 >STYA ZPPtr1 >LDYAI $D000 >STYA ZPPtr2 >LDYAI A2osX.E0-A2osX.D2^$FFFF >STYA ZPPtr3 jsr Kernel.Move sta CLRALTZP >LDAXI MSG.D1 jsr PrintFAX sta SETALTZP bit RRAMWRAMBNK1 bit RRAMWRAMBNK1 >LDYAI A2osX.D1 >STYA ZPPtr1 >LDYAI $D000 >STYA ZPPtr2 >LDYAI A2osX.D2-A2osX.D1^$FFFF >STYA ZPPtr3 jsr Kernel.Move sta CLRALTZP >LDAXI MSG.E0 jsr PrintFAX sta SETALTZP bit RRAMWRAMBNK1 bit RRAMWRAMBNK1 >LDYAI A2osX.E0 >STYA ZPPtr1 >LDYAI $E000 >STYA ZPPtr2 >LDYAI A2osX.E0.E-A2osX.E0^$FFFF >STYA ZPPtr3 jsr Kernel.Move sta CLRALTZP Make MAIN ZP is enabled for X.PRINT.F cli jsr KConfigLoad lda A2osX.HZ pha push HZ >LDAXI MSG.HZ jsr PrintFAX jsr CPU.Init >LDAXI MSG.Init2.OK jsr PrintFAX *-------------------------------------- >DEBUGOA *-------------------------------------- Kernel.Init3 sta SETALTZP bit RRAMWRAMBNK1 bit RRAMWRAMBNK1 ldx #Kernel.ZP.S-1 .1 lda Kernel.ZP,x sta CHARGET,x dex bpl .1 jsr MemMgrInit jsr PS0Init bcs * >LDYAI MSG.Init3 >SYSCALL PrintF.YA jsr DevMgrInit bcs * jsr IrqMgrInit bcs * jsr EvtMgrInit bcs * jsr FltMgrInit bcs * jsr TskMgrInit bcs * ldy #S.PS.hPREFIX lda (pPs),y >SYSCALL GetMemPtr.A >PUSHYA >LDYAI MSG.Prefix >SYSCALL PrintF.YA >PUSHWI STARTUP.CMDLINE >LDYAI MSG.Startup >SYSCALL PrintF.YA >LDYAI STARTUP.CMDLINE >SYSCALL ExpandStr.YA phx Save Expanded CMDLINE for discard >SYSCALL CreatePS.YA bcs .9 pla >SYSCALL FreeMem.A ...discard... >LDYAI MSG.Init3.OK >SYSCALL PrintF.YA >DEBUGOA jmp CORE.Run .9 >PUSHA >LDYAI MSG.StartupErr >SYSCALL PrintF.YA bra * No need to discard Expanded CMDLINE *-------------------------------------- * Modified CHARGET/CHARGOT for ROM CALL * CHRGET .EQ $B1 - C8 *-------------------------------------- Kernel.ZP .PH $B1 CHARGET inc TXTPTR bne CHARGOT inc TXTPTR+1 CHARGOT lda $ffff beq IsDigit.9 IsDigit cmp #'0' bcc IsDigit.9 cmp #'9'+1 rts IsDigit.9 sec rts .EP Kernel.ZP.S .EQ *-Kernel.ZP *-------------------------------------- Kernel.Move ldy #0 .1 inc ZPPtr3 bne .2 inc ZPPtr3+1 beq .9 .2 lda (ZPPtr1),y sta (ZPPtr2),y iny bne .1 inc ZPPtr1+1 inc ZPPtr2+1 bne .1 .9 rts *-------------------------------------- CPU.Init >LDAXI MSG.CPU jsr PrintFAX jsr Detect6502 A = CPU type sta A2osX.CPUTYPE ldx MSG.CPUTYPEH,y lda MSG.CPUTYPEL,y jsr PrintFAX lda MACHID and #MACHID.T cmp #MACHID.T.IIc beq CPU.Init.Z80 >LDAXI MSG.CPU.SPEED jsr PrintFAX stz A2osX.RANDOM16 stz A2osX.RANDOM16+1 php sei .1 bit VBL bpl .2 .2 bit VBL bmi .2 ldx #0 Count LO lda #0 Count HI .3 ldy #3 (2) .4 nop (2) dey (2) bne .4 (2*) inc A2osX.RANDOM16 (6) bne .5 (2*) inc A2osX.RANDOM16+1 (6) bit VBL (4) bpl .3 (2*) bmi .6 .5 nop (2) nop (2) nop (2) bit VBL (4) bpl .3 (2*) .6 plp stz A2osX.CPUSPEED .7 sec lda A2osX.RANDOM16 sbc #100 tax lda A2osX.RANDOM16+1 sbc /100 bcc .8 stx A2osX.RANDOM16 sta A2osX.RANDOM16+1 inc A2osX.CPUSPEED bra .7 .8 lda A2osX.RANDOM16 sta A2osX.CPUSPEED+1 pha push CPU speed LO lda A2osX.CPUSPEED pha push CPU speed HI >LDAXI MSG.CPU.SPEEDOK jsr PrintFAX CPU.Init.Z80 >LDAXI MSG.Z80 jsr PrintFAX jsr DetectZ80 bcs .9 sta A2osX.Z80SLOT pha Push Z80Slot tax lda #A2osX.S.Z80 sta A2osX.S,x >LDAXI MSG.Z80.OK jsr PrintFAX rts .9 >LDAXI MSG.Z80.KO jsr PrintFAX rts *-------------------------------------- * Out: * A = $60, 6502 * A = $61, 65C02 * A = $62, 65R02 * A = $63, 65816 *-------------------------------------- Detect6502 ldy #0 Test 6502 BCD bug sed lda #$99 clc adc #$01 cld bmi .9 BUG!, we have 6502 ldy #3 test 65C816 TYX Instruction ldx #0 .OP 65816 tyx TYX: if 65C816, x becomes non-zero .OP 65C02 bne .9 worked! 65C816 dey y=2 -> R65C02 ldx $EA save zp $EA stz $EA store 0 in $EA * .OP 65R02 .HS F7EA For compatibility with A2osX.ASM * smb 7,$EA if not Rockwell, assemble as nop nop * .OP 65C02 asl $EA cs if Rockwell stx $EA restore zp $EA bcs .9 dey y=1 -> 65C02 .9 tya ora #$60 rts *-------------------------------------- * Out: * A = Z80 Slot *-------------------------------------- DetectZ80 ldx #Z80Code.Size .1 lda Z80Code.Start-1,x sta $1000-1,x 00000H for Z80 dex bne .1 stz ZPPtr1 lda #$C1 sta ZPPtr1+1 .2 sta (ZPPtr1) lda $100D bmi .8 inc ZPPtr1+1 lda ZPPtr1+1 cmp #$C8 beq .9 CS clc adc #$20 sta $100A bra .2 .8 lda ZPPtr1+1 and #$0F clc .9 rts *-------------------------------------- KConfigLoad >LDAXI MSG.KCREAD jsr PrintFAX jsr MLI .DA #MLIOPEN .DA MLIOPEN00 bcs .9 lda MLIOPEN00+5 sta MLIREAD00+1 sta MLICLOSE00+1 jsr MLI .DA #MLIREAD .DA MLIREAD00 php pha jsr MLI .DA #MLICLOSE .DA MLICLOSE00 pla plp bcs .9 >LDAXI MSG.KCREAD.OK jsr PrintFAX rts .9 >LDAXI MSG.KCREAD.KO jsr PrintFAX rts *-------------------------------------- Z80Code.Start .HS 31FFFF START: LD SP,0FFFFH Init Stack .HS 3EFF LD A,0FFH Set Flag .HS 320D00 LD (FLAG),A .HS 3200E1 LD (0E100H),A Back to 6502 .HS 18F3 JR START Loop .HS 00 FLAG: .DB 0 Z80Code.Size .EQ *-Z80Code.Start *-------------------------------------- MemMgrInit >LDYAI Mem.MHiMem >STYA Mem.HiMem >STYA Mem.Free >LDYAI Mem.MLoMem >STYA Mem.LoMem stz Mem.LastSlot Reserve Slot #0 sta SETWRITEAUX >LDYAI Mem.XHiMem >STYA Mem.HiMem >STYA Mem.Free >LDYAI Mem.XLoMem >STYA Mem.LoMem stz Mem.LastSlot Reserve Slot #0 sta CLRWRITEAUX rts *-------------------------------------- PS0Init ldx #S.DEV*2 NUL,SYS .1 lda DevMgr.NUL-1,x sta Dev.Table-1,x dex bne .1 lda #2 sta DevMgr.Count >LDYAI CORE.S.PS0 Select Process 0 (Kernel) >STYA pPs >LDYAI K.STACKTOP >STYA pStack >STYA CORE.S.PS0+S.PS.ZP+4 init Kernel Soft Stack >LDYAI DEV.SYS >SYSCALL MkNod.YA bcs .9 ldy #S.PS.hStdIn sta (pPs),y sta CORE.S.PS0+S.PS.hStdIn ldy #S.PS.hStdOut sta (pPs),y sta CORE.S.PS0+S.PS.hStdOut ldy #S.PS.hStdErr sta (pPs),y sta CORE.S.PS0+S.PS.hStdErr clc .9 rts *-------------------------------------- DevMgr.NUL cld jmp (DevMgr.NUL.Code,x) .DA #S.DEV.S.WRITE+S.DEV.S.READ+S.DEV.S.OPENED .BS 6 >CSTR "NUL" NAME .HS 00 NAME must Be 4 bytes long *-------------------------------------- DevMgr.SYS cld jmp (DevMgr.SYS.Code,x) .DA #S.DEV.S.WRITE+S.DEV.S.READ .BS 6 >CSTR "SYS" NAME .HS 00 NAME must Be 4 bytes long *-------------------------------------- * Setup AuxLC $FFFE->Kernel IRQ Handler * if irq not handled, jmp (S.IrqMgrOldFFFE) *-------------------------------------- IrqMgrInit >LDYAI MSG.IRQ >SYSCALL PrintF.YA php sei >LDYA $FFFE >STYA IRQ.OldFFFE >LDYAI K.IrqHAuxLC >STYA $FFFE >LDYAI GP.IrqH >STYA K.MLI.PARAMS+2 >MLICALL MLIALLOCIRQ bcs .9 lda K.MLI.PARAMS+1 sta IRQ.INTNUM plp jsr IrqMgrInit.Mouse bcs .1 lda #'v' sta SYS.BASL0+37 >LDYAI K.IrqH.VBL >STYA K.IrqH+1 >LDYAI MSG.IRQ.VBL >SYSCALL PrintF.YA clc rts .1 jsr IrqMgrInit.TClock bcs .8 lda #'c' sta SYS.BASL0+37 >LDYAI K.IrqH.TClock >STYA K.IrqH+1 >LDYAI MSG.IRQ.CLOCK >SYSCALL PrintF.YA clc rts .8 jsr IrqMgrInit.HZ2Tick lda #'p' sta SYS.BASL0+37 >LDYAI MSG.IRQ.POLL >SYSCALL PrintF.YA clc rts .9 plp sec rts *-------------------------------------- IrqMgrInit.HZ2Tick ldx #50 lda A2osX.HZ sta CORE.TickPer10t sta CORE.Tick10t cmp #5 beq .1 ldx #60 .1 stx CORE.TickPerSec stx CORE.TickSec rts *-------------------------------------- IrqMgrInit.Mouse stz ZPPtr1 Try finding a Mouse Card... lda #$C1 sta ZPPtr1+1 .1 ldx #Mouse.SIG-Mouse.OFS-1 .2 ldy Mouse.OFS,x lda (ZPPtr1),y cmp Mouse.SIG,x bne .3 dex bpl .2 bra .4 .3 inc ZPPtr1+1 no match, try next slot.... lda ZPPtr1+1 cmp #$C8 bne .1 sec rts .4 lda ZPPtr1+1 sta IRQ.VBL.MSM+2 sta IRQ.VBL.MRM+2 and #$0f sta IRQ.VBL.0n asl asl asl asl sta IRQ.VBL.n0 ldy #$13 SERVEMOUSE lda (ZPPtr1),y sta IRQ.VBL.MSM+1 ldy #$14 READMOUSE lda (ZPPtr1),y sta IRQ.VBL.MRM+1 ldy #$12 SETMOUSE lda (ZPPtr1),y sta .7+1 lda #9 #MOUSEMODx.INTVBL+MOUSEMODx.ACTIVE ldx ZPPtr1+1 DEVSLOTCn stx .7+2 ldy IRQ.VBL.n0 php sei bit RROMBNK2 Renable ROM to allow MOUSE II firmware works properly .7 jsr $ffff self Modified, CALL SETMOUSE bcs .9 bit RRAMWRAMBNK1 Back To LC Ram bit RRAMWRAMBNK1 jsr IrqMgrInit.HZ2Tick dec CORE.IRQMode plp clc rts .9 plp sec rts Mouse.OFS .HS 05070B0CFB Mouse.SIG .HS 38180120D6 *-------------------------------------- IrqMgrInit.TClock stz ZPPtr1 Try finding a Mouse Card... lda #$C1 sta ZPPtr1+1 .1 ldy #31 .2 lda (ZPPtr1),y cmp TClock.SIG,y bne .3 dey bpl .2 bra .4 .3 inc ZPPtr1+1 no match, try next slot.... lda ZPPtr1+1 cmp #$C8 bne .1 .4 lda ZPPtr1+1 get $Cn and #$f tax get $0n asl asl asl asl tay get $n0 sty IRQ.VBL.n0 lda #$40 Enable interrupt sta $c080,y sta $478,x sta $7f8,x lda #64 sta CORE.TickPerSec sta CORE.TickSec lda #11 sta CORE.TickPer10t sta CORE.Tick10t dec CORE.IRQMode clc rts .9 sec rts TClock.SIG .HS 0878282c58ff700538b00118b8087848 .HS 8a489848adffcf201ac86868ba8df807 *-------------------------------------- DevMgrInit >LDYAI MSG.DEV >SYSCALL PrintF.YA stz ZPPtr1 lda #$C1 sta ZPPtr1+1 lda #1 sta DEV.HEADER+S.DEV.BUSID .1 lda #1 sta DEV.HEADER+S.DEV.DEVID ldx #SmartPort.SIG-SmartPort.OFS-1 .2 ldy SmartPort.OFS,x Check if there is a smartport firmware lda (ZPPtr1),y cmp SmartPort.SIG,x bne .8 not a Disk Controller... dex bpl .2 ldy #$ff lda (ZPPtr1),y bne .3 $0, Disk II, 16sect jsr DevMgrInit.DII ldy #A2osX.S.DII bra .7 .3 inc beq .7 $ff, Disk II 13 Sect, ignore ldy #7 lda (ZPPtr1),y bne .4 $Cn07=00 : SmartPort jsr DevMgrInit.SP ldy #A2osX.S.SP bra .7 .4 jsr DevMgrInit.BLK ldy #A2osX.S.BLK .7 lda ZPPtr1+1 and #$0f tax tya sta A2osX.S,x .8 inc DEV.HEADER+S.DEV.BUSID inc ZPPtr1+1 lda ZPPtr1+1 cmp #$C8 bne .1 clc rts *-------------------------------------- DevMgrInit.DII >LDYAI A2osX.DIIDrv >STYA DEV.HEADER+S.DEV.DRV.JMP jsr DevMgrInit.AddDev inc DEV.HEADER+S.DEV.DEVID jsr DevMgrInit.AddDev rts *-------------------------------------- DevMgrInit.BLK ldy #$ff lda (ZPPtr1),y sta DEV.HEADER+S.DEV.ROM.JMP lda ZPPtr1+1 sta DEV.HEADER+S.DEV.ROM.JMP+1 >LDYAI A2osX.BlkDrv >STYA DEV.HEADER+S.DEV.DRV.JMP jsr DevMgrInit.AddDev inc DEV.HEADER+S.DEV.DEVID jsr DevMgrInit.AddDev rts *-------------------------------------- DevMgrInit.SP ldy #$ff lda (ZPPtr1),y clc adc #3 Compute smartport entry point sta .1+1 sta .3+1 sta DEV.HEADER+S.DEV.ROM.JMP lda ZPPtr1+1 sta .1+2 sta .3+2 sta DEV.HEADER+S.DEV.ROM.JMP+1 >LDYAI A2osX.PrtDrv >STYA DEV.HEADER+S.DEV.DRV.JMP .1 jsr $ffff Self Modified .DA #0 Status .DA SP.CTRL.STATUS bcs .9 lda SP.CTRL.STATUS.DATA beq .9 no device .2 lda #1 sta SP.DEV.STATUS.DEVID .3 jsr $ffff Self Modified .DA #0 Status .DA SP.DEV.STATUS bcs .7 lda SP.DEV.STATUS.DATA+S.DSTAT.S sta DEV.HEADER+S.DEV.S jsr DevMgrInit.AddDev .7 inc SP.DEV.STATUS.DEVID inc DEV.HEADER+S.DEV.DEVID dec SP.CTRL.STATUS.DATA bne .3 .9 rts *-------------------------------------- DevMgrInit.AddDev lda DevMgr.Count cmp #K.DEV.MAX beq .9 inc DevMgr.Count >SYSCALL GetDevByID.A >STYA ZPPtr2 lda DEV.HEADER+S.DEV.BUSID ora #$30 sta DEV.HEADER+S.DEV.NAME+1 SnDy lda DEV.HEADER+S.DEV.DEVID ora #$30 sta DEV.HEADER+S.DEV.NAME+3 SxDn ldy #S.DEV-1 .1 lda DEV.HEADER,y sta (ZPPtr2),y dey bpl .1 clc rts .9 lda #K.E.OOH sec rts *-------------------------------------- DEV.HEADER clc jmp ($ffff,x) .DA #S.DEV.S.BLOCK S .BS 1 F .BS 1 BUS.ID .BS 1 DEV.ID .BS 2 ROM.JMP .BS 1 >CSTR "S1D1" 5 bytes *-------------------------------------- SmartPort.OFS .HS 010305 SmartPort.SIG .HS 200003 *-------------------------------------- SP.CTRL.STATUS .DA #3 .DA #0 .DA SP.CTRL.STATUS.DATA .DA #0 SP.CTRL.STATUS.DATA .BS 8 DevCnt SP.DEV.STATUS .DA #3 SP.DEV.STATUS.DEVID .BS 1 .DA SP.DEV.STATUS.DATA .DA #3 return DIB SP.DEV.STATUS.DATA .BS S.DSTAT *-------------------------------------- EvtMgrInit >LDYAI MSG.EVT >SYSCALL PrintF.YA lda #$A5 sta A2osX.TIMER16 lda #$9B sta A2osX.TIMER16+1 lda /Evt.Table sta pEvent+1 clc rts *-------------------------------------- FltMgrInit >LDYAI MSG.FLT >SYSCALL PrintF.YA stz Flt.Table clc rts *-------------------------------------- TskMgrInit >LDYAI MSG.TSK >SYSCALL PrintF.YA jsr CORE.PSSelect0 >LDYAI K.ENV.SIZE get a buffer for ENV >SYSCALL GetMem0.YA make sure blank!! bcs .9 txa ldy #S.PS.hENV sta (pPs),y >LDYAI K.Buf256 >STYA K.MLI.PARAMS+1 >MLICALL MLIGETPREFIX bcs .9 ldy K.Buf256 iny lda #0 jsr K.GetMem.YA >STYA ZPPtr1 txa ldy #S.PS.hPREFIX sta (pPs),y ldy K.Buf256 lda #0 sta (ZPPtr1),y .4 lda K.Buf256,y dey sta (ZPPtr1),y bne .4 >PUSHW ZPPtr1 push ENV value = PREFIX >PUSHWI I.ENV.A2osX push ENV name = A2OSX >SYSCALL SetEnv bcs .9 >LDYAI I.ENV.PATH >SYSCALL PutEnv.YA bcs .9 >LDYAI I.ENV.LIB >SYSCALL PutEnv.YA bcs .9 >LDYAI I.ENV.DRV >SYSCALL PutEnv.YA .9 rts *-------------------------------------- MSG.Init2 >CSTR "A2osX[Stage2]:Init\nInstalling KERNEL...\n - $BE00 Global Page...\n" MSG.D1 >CSTR " - $D000 Bank1...\n" MSG.D2 >CSTR " - $D000 Bank2...\n" MSG.E0 >CSTR " - $E000...\n" MSG.HZ >CSTR "Kernel SYS Timer Set For %d0 hz Machine.\n" MSG.Init2.OK >CSTR "A2osX[Stage2]:Complete.\n" *-------------------------------------- MSG.Init3 >CSTR "A2osX[Stage3]:Init\r\n" MSG.DEV >CSTR "-Device Manager...\r\n" MSG.IRQ >CSTR "-Interrupt Manager...\r\n" MSG.IRQ.VBL >CSTR " (Mouse VBL IRQ Activated)\r\n" MSG.IRQ.CLOCK >CSTR " (Clock Card IRQ Activated)\r\n" MSG.IRQ.POLL >CSTR " (Polling Mode)\r\n" MSG.EVT >CSTR "-Event Manager...\r\n" MSG.FLT >CSTR "-Path Filter...\r\n" MSG.TSK >CSTR "-Task Manager...\r\n" MSG.Prefix >CSTR "Prefix:%s\r\n" MSG.Startup >CSTR "Executing Kernel Startup Script...\r\nCmd:%s\r\n" MSG.StartupErr >CSTR "Failed : [$%h]\r\n" MSG.Init3.OK >CSTR "A2osX[Stage3]:Complete.\r\n" *-------------------------------------- MSG.CPU >CSTR "Checking CPU..." MSG.CPU.SPEED >CSTR "Detecting CPU Speed..." MSG.CPUTYPEL .DA #MSG.6502 .DA #MSG.65C02 .DA #MSG.65R02 .DA #MSG.65816 MSG.CPUTYPEH .DA /MSG.6502 .DA /MSG.65C02 .DA /MSG.65R02 .DA /MSG.65816 MSG.6502 >CSTR "6502.\n" MSG.65C02 >CSTR "65C02.\n" MSG.65R02 >CSTR "65R02.\n" MSG.65816 >CSTR "65816.\n" MSG.CPU.SPEEDOK >CSTR "%d.%02d Mhz.\n" MSG.Z80 >CSTR "Detecting Z80 CPU..." MSG.Z80.OK >CSTR "Detected In Slot %d.\n" MSG.Z80.KO >CSTR "Not Detected.\n" MSG.KCREAD >CSTR "Reading Kernel Config File..." MSG.KCREAD.OK >CSTR "OK\n" MSG.KCREAD.KO >CSTR "\nError While Reading Kernel Config File, Using Default.\n" *-------------------------------------- DEV.SYS >CSTR "SYS" I.ENV.A2osX >CSTR "A2OSX" I.ENV.PATH >CSTR "PATH=${A2OSX}SBIN/;${A2OSX}BIN/" I.ENV.LIB >CSTR "LIB=${A2OSX}LIB/" I.ENV.DRV >CSTR "DRV=${A2OSX}DRV/" STARTUP.CMDLINE >CSTR "${A2OSX}SBIN/SHELL ${A2OSX}A2osX.STARTUP" *-------------------------------------- MLIOPEN00 .DA #3 .DA A2OSXCONF .DA $1000 .BS 1 A2OSXCONF >PSTR "A2osX.KCONFIG" *-------------------------------------- MLIREAD00 .DA #4 .BS 1 .DA A2osX.HZ .DA 16 .BS 2 *-------------------------------------- MLICLOSE00 .DA #1 .BS 1 *-------------------------------------- MAN SAVE /A2OSX.SRC/SYS/KERNEL.S.INIT LOAD /A2OSX.SRC/SYS/KERNEL.S ASM