mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-26 13:49:18 +00:00
664 lines
13 KiB
Plaintext
664 lines
13 KiB
Plaintext
NEW
|
||
AUTO 3,1
|
||
*--------------------------------------
|
||
* SYSCALL (AUXLC to AUXLC)
|
||
* Used by user & kernel for inter bank Calls
|
||
* In:
|
||
* X = SYSfnc.Index
|
||
* Y,A = free for Inline param
|
||
*--------------------------------------
|
||
GP.CodeStart jmp GP.SysCall
|
||
*--------------------------------------
|
||
* LIBCALL (AUXLC to AUXLC)
|
||
* Used by user
|
||
* In:
|
||
* Y = LIB.ID
|
||
* X = LIBfnc.Index
|
||
* A = free for Inline param
|
||
*--------------------------------------
|
||
jmp GP.LibCall
|
||
*--------------------------------------
|
||
* AppleTalk MLICALL (AUXLC to MAINLC)
|
||
* Used by user
|
||
* In:
|
||
* Y,A = Params
|
||
*--------------------------------------
|
||
jmp GP.AtkCall
|
||
*--------------------------------------
|
||
* ROMCALL (AUXLC to ROMLC)
|
||
* Used by Kernel
|
||
* In:
|
||
* X = ROM Function
|
||
* Y,A = Param
|
||
*--------------------------------------
|
||
jmp GP.FpuCall
|
||
*--------------------------------------
|
||
* BADCALL
|
||
*--------------------------------------
|
||
lda #MLI.E.BADCALL
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
* SLEEP
|
||
*--------------------------------------
|
||
GP.Sleep php
|
||
sei
|
||
|
||
phy
|
||
ldy #S.PS.A
|
||
sta (pPs),y
|
||
|
||
txa
|
||
iny #S.PS.X
|
||
sta (pPs),y
|
||
|
||
pla
|
||
iny #S.PS.Y
|
||
sta (pPs),y
|
||
|
||
pla
|
||
iny #S.PS.P
|
||
sta (pPs),y
|
||
|
||
pla get PC LO
|
||
plx get PC HI
|
||
|
||
inc Advance one byte because of return by RTI
|
||
bne GP.Sleep2
|
||
inx
|
||
|
||
GP.Sleep2 ldy #S.PS.PC
|
||
sta (pPs),y
|
||
|
||
txa
|
||
iny #S.PS.PC+1
|
||
sta (pPs),y
|
||
|
||
tsx
|
||
|
||
inx
|
||
inx keep PC HI,LO from KERNEL jsr PSExec/PSResume
|
||
|
||
inx Stack Ptr is $1ff if empty
|
||
|
||
txa
|
||
|
||
beq .3
|
||
|
||
tay Save !Byte count for later
|
||
|
||
.2 pla
|
||
>PUSHA
|
||
inx
|
||
bne .2
|
||
|
||
tya
|
||
|
||
.3 >PUSHA push CPU Stack BC to restore on top of Soft Stack
|
||
|
||
inc $1fe PC=PC+1
|
||
bne .4
|
||
inc $1ff because of RTI
|
||
|
||
.4 lda (pPs)
|
||
ora #S.PS.F.SLEEP
|
||
sta (pPs)
|
||
|
||
lda #0 cld,clc,cli
|
||
pha
|
||
rti exit to kernel with CC
|
||
*--------------------------------------
|
||
* *** MUST BE REINTRANT ***
|
||
*--------------------------------------
|
||
GP.SysCall dec IRQ.InKernel
|
||
|
||
pha
|
||
phy
|
||
ldy #S.PS.A
|
||
sta (pPs),y
|
||
|
||
txa
|
||
iny #S.PS.X
|
||
sta (pPs),y
|
||
|
||
pla
|
||
iny #S.PS.Y
|
||
sta (pPs),y
|
||
|
||
tay
|
||
pla
|
||
|
||
jsr K.SYSCALL2
|
||
bcc .2 no error quit...
|
||
|
||
tax CS,A=0 ?
|
||
beq .3 Yes, BLOCKING I/O
|
||
|
||
.2 inc IRQ.InKernel
|
||
rts Unmodified Carry
|
||
|
||
.3 pla get PC LO
|
||
plx get PC HI
|
||
* sec
|
||
sbc #2 move back JSR GP.SysCall -3 (jsr $BF00) +1 (RTI)
|
||
bcs .4
|
||
|
||
dex
|
||
|
||
.4 inc IRQ.InKernel
|
||
bra GP.Sleep2
|
||
*--------------------------------------
|
||
GP.LibCall dec IRQ.InLib
|
||
|
||
pha No need to save X, K.GetMemPtr will leave it unmodified
|
||
tya Get LIB hMem in A
|
||
jsr K.GetMemPtr Get LIB Code Segment (MemMgr in $E000, no BNK change)
|
||
>STYA .1+1
|
||
pla
|
||
.1 jsr $FFFF SELF MODIFIED
|
||
|
||
GP.LibCall.8 inc IRQ.InLib
|
||
GP.LibCall.RTS rts
|
||
*--------------------------------------
|
||
GP.AtkCall dec IRQ.InKernel
|
||
|
||
>STYA .1
|
||
jsr GO.ProDOS
|
||
jsr MLI
|
||
.DA #MLIATALK
|
||
.1 .DA *
|
||
jsr GO.A2osX
|
||
|
||
inc IRQ.InKernel
|
||
rts
|
||
*--------------------------------------
|
||
GP.FpuCall dec IRQ.InKernel
|
||
jsr .1
|
||
inc IRQ.InKernel
|
||
|
||
clc
|
||
rts
|
||
|
||
.1 cpx #FPU.IMOD32+1
|
||
bcc GP.RomCall.JmpX INT32
|
||
|
||
phx
|
||
jsr GP.SetFAC Get float from stack
|
||
|
||
plx
|
||
cpx #FPU.PWR+1
|
||
bcs .2
|
||
*/--------------------------------------
|
||
* # FAdd,FSub,FMult,FDiv,FPwr
|
||
* Return X+Y, X-Y, X*Y, X/Y, X^Y
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHF X (float)`
|
||
* `>PUSHF Y (float)`
|
||
* `>FPU fadd`
|
||
* `>FPU fsub`
|
||
* `>FPU fmult`
|
||
* `>FPU fdiv`
|
||
* `>FPU fpwr`
|
||
* ## RETURN VALUE
|
||
* On stack (float)
|
||
*\--------------------------------------
|
||
lda pStack
|
||
clc
|
||
adc #5
|
||
sta pStack
|
||
|
||
phx
|
||
jsr GP.SetARG
|
||
plx
|
||
*/--------------------------------------
|
||
* # Log,Sqr,Exp,Cos,Sin,Tan,ATan
|
||
* Return Log(x), Sqr(x), E^X, Cos(x), Sin(X), Tan(x), ATan(x)
|
||
* ## C
|
||
* `float log ( float x);`
|
||
* `float sqr ( float x);`
|
||
* `float exp ( float x);`
|
||
* `float cos ( float x);`
|
||
* `float sin ( float x);`
|
||
* `float tan ( float x);`
|
||
* `float atan ( float x);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHF x (Float)`
|
||
* `>FPU log`
|
||
* ## RETURN VALUE
|
||
* On stack (Float)
|
||
*\--------------------------------------
|
||
.2 jsr GP.ROMCALL
|
||
|
||
GP.GETFAC.ON.STACK
|
||
lda pStack
|
||
ldy pStack+1
|
||
|
||
sta FORPNT Ptr to dst buffer
|
||
sty FORPNT+1
|
||
|
||
ldx #FPU.GETFAC
|
||
*--------------------------------------
|
||
GP.RomCall phx
|
||
ldx $D000
|
||
stx .8+1
|
||
|
||
bit RROMBNK1
|
||
|
||
plx
|
||
jsr GP.RomCall.JmpX
|
||
|
||
.8 ldx #$ff
|
||
bit $C000,x
|
||
bit $C000,x
|
||
|
||
rts
|
||
*--------------------------------------
|
||
GP.RomCall.JmpX jmp (.1,x)
|
||
|
||
.1 .DA GP.ADD32
|
||
.DA GP.SUB32
|
||
.DA GP.UMUL32
|
||
.DA GP.IMUL32
|
||
.DA GP.UDIV32
|
||
.DA GP.IDIV32
|
||
.DA GP.UMOD32
|
||
.DA GP.IMOD32
|
||
|
||
* http://www.txbobsc.com/scsc/scdocumentor/E7A0.html
|
||
|
||
.DA $E7C1 FADDT
|
||
.DA $E7AA FSUBT
|
||
.DA $E987 FMULTT.1
|
||
.DA $EA6B FDIVT+2
|
||
.DA $EE97 FPWRT
|
||
|
||
.DA $E941 LOG
|
||
.DA $EE8D SQR
|
||
.DA $EF09 EXP
|
||
.DA $EFEA COS
|
||
.DA $EFF1 SIN
|
||
.DA $F03A TAN
|
||
.DA $F09E ATN
|
||
|
||
.DA $E9E3 LOAD.ARG.FROM.YA
|
||
.DA $EAF9 LOAD.FAC.FROM.YA
|
||
|
||
.DA $EB27 SETFOR (GETFAC)
|
||
.DA $EBB2 FCOMP
|
||
|
||
.DA $E82E NORMALIZE.FAC.2 (L->F)
|
||
.DA $EBF2 QINT (F->L)
|
||
|
||
.DA $EC4A FIN AToF
|
||
.DA $ED36 FOUT.1 PrintF
|
||
*--------------------------------------
|
||
GP.SetARG ldx #FPU.SETARG
|
||
.HS 2C BIT ABS
|
||
GP.SetFAC ldx #FPU.SETFAC
|
||
|
||
>LDYA pStack
|
||
bra GP.ROMCALL
|
||
*--------------------------------------
|
||
GP.ADD32 clc
|
||
.HS B0 BCS
|
||
GP.SUB32 sec
|
||
|
||
php
|
||
|
||
jsr GP.PopACC32
|
||
|
||
ldy #0
|
||
ldx #3
|
||
|
||
plp
|
||
bcs .2
|
||
|
||
.1 lda (pStack),y
|
||
adc ACC32,y
|
||
sta (pStack),y
|
||
iny
|
||
dex
|
||
bpl .1
|
||
|
||
rts
|
||
|
||
.2 lda (pStack),y
|
||
sbc ACC32,y
|
||
sta (pStack),y
|
||
iny
|
||
dex
|
||
bpl .2
|
||
|
||
GP.SUB32.RTS rts
|
||
*--------------------------------------
|
||
GP.UMUL32 clc
|
||
.HS B0 BCS
|
||
GP.IMUL32 sec
|
||
|
||
php
|
||
jsr GP.MULDIVMOD.COMMON
|
||
jsr MATH.MUL32
|
||
|
||
plp
|
||
bcc GP.SUB32.RTS
|
||
|
||
GP.RETURN.ITMP
|
||
lda ACC32.Sign
|
||
eor ARG32.Sign
|
||
bpl GP.PutTMP32
|
||
bra GP.PutNotTMP32
|
||
*--------------------------------------
|
||
GP.UDIV32 clc
|
||
.HS B0 BCS
|
||
GP.IDIV32 sec
|
||
clv
|
||
bra GP.DIVMOD
|
||
|
||
GP.UMOD32 clc
|
||
.HS B0 BCS
|
||
GP.IMOD32 sec
|
||
bit GP.SUB32.RTS $60
|
||
|
||
GP.DIVMOD php
|
||
jsr GP.MULDIVMOD.COMMON
|
||
jsr MATH.DIVMOD32
|
||
|
||
plp
|
||
bcc .3
|
||
bvs GP.RETURN.ITMP IMOD
|
||
|
||
lda ACC32.Sign IDIV
|
||
eor ARG32.Sign
|
||
bmi GP.PutARG32
|
||
bra GP.PutNotARG32
|
||
|
||
.3 bvs GP.PutARG32 DIV
|
||
*--------------------------------------
|
||
GP.PutTMP32 lda #TMP32 MOD
|
||
.HS 2C BIT ABS
|
||
*--------------------------------------
|
||
GP.PutARG32 lda #ARG32
|
||
sta .1+1
|
||
|
||
ldy #3
|
||
|
||
.1 lda $ff,y SELF MODIFIED
|
||
sta (pStack),y
|
||
dey
|
||
bpl .1
|
||
|
||
rts
|
||
*--------------------------------------
|
||
GP.PutNotTMP32 lda #TMP32
|
||
.HS 2C BIT ABS
|
||
*--------------------------------------
|
||
GP.PutNotARG32 lda #ARG32
|
||
sta .1+1
|
||
|
||
ldy #0
|
||
ldx #3
|
||
|
||
sec
|
||
|
||
.1 lda $ff,y SELF MODIFIED
|
||
eor #$ff two's complement of X bytes
|
||
adc #0
|
||
sta (pStack),y
|
||
iny
|
||
dex
|
||
bpl .1
|
||
|
||
rts
|
||
*--------------------------------------
|
||
GP.PopACC32 ldy #$ff
|
||
|
||
.1 iny
|
||
lda (pStack),y
|
||
sta ACC32,y
|
||
cpy #3
|
||
bne .1
|
||
|
||
sta ACC32.Sign
|
||
|
||
tya
|
||
* sec Add 3+CS=4
|
||
adc pStack
|
||
sta pStack
|
||
|
||
rts
|
||
*--------------------------------------
|
||
GP.GetARG32 ldy #0
|
||
|
||
.1 lda (pStack),y
|
||
sta ARG32,y
|
||
iny
|
||
cpy #4
|
||
bne .1
|
||
|
||
sta ARG32.Sign
|
||
|
||
rts
|
||
*--------------------------------------
|
||
GP.MULDIVMOD.COMMON
|
||
php
|
||
|
||
jsr GP.PopACC32
|
||
jsr GP.GetARG32
|
||
|
||
plp
|
||
bcc .1
|
||
|
||
jsr MATH.ACC32ABS
|
||
jsr MATH.ARG32ABS
|
||
|
||
.1 rts
|
||
*/--------------------------------------
|
||
* # float
|
||
* Return 'floated' long
|
||
* ## C
|
||
* `float f = (float)12345678;
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHL X` (long)
|
||
* ## RETURN VALUE
|
||
* On stack (float)
|
||
*\--------------------------------------
|
||
K.Float ldy #3
|
||
|
||
.1 lda (pStack),y
|
||
sta FAC,y Reverse Order
|
||
dey
|
||
bpl .1
|
||
|
||
dec pStack keep 5 bytes on stack
|
||
|
||
stz FAC.SIGN
|
||
lda #$80+32
|
||
sta FAC Positive + Exp=32
|
||
|
||
ldx #FPU.LTOF
|
||
|
||
GP.RomCallPushFAC
|
||
jsr GP.ROMCALL
|
||
jmp GP.GETFAC.ON.STACK
|
||
*/--------------------------------------
|
||
* # lrintf
|
||
* Return float rounded into a long
|
||
* ## C
|
||
* `long int lrintf (float x);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHF x`
|
||
* `>SYSCALL lrintf`
|
||
* ## RETURN VALUE
|
||
* On stack (long)
|
||
*\--------------------------------------
|
||
K.lrintf jsr GP.SetFAC
|
||
|
||
inc pStack keep 4 bytes on stack
|
||
|
||
ldx #FPU.QINT
|
||
jsr GP.ROMCALL
|
||
|
||
ldy #3
|
||
|
||
.1 lda FAC+1,y
|
||
sta (pStack),y
|
||
dey
|
||
bpl .1
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
GP.MLICall stx .1
|
||
sta K.MLI.PARAMS
|
||
jsr GO.ProDOS
|
||
jsr MLI
|
||
.1 .BS 1
|
||
.DA K.MLI.PARAMS
|
||
jsr GO.A2osX
|
||
rts
|
||
*--------------------------------------
|
||
GO.ProDOS pha
|
||
lda $D000 We re coming from AUXLC, saving bank...
|
||
sta GO.A2osX.BNK+1
|
||
pla
|
||
php
|
||
clc
|
||
.HS 2C bit abs
|
||
|
||
GO.A2osX php
|
||
sec
|
||
|
||
sei
|
||
|
||
sta GO.EXIT.SaveA+1
|
||
stx GO.EXIT.SaveX+1
|
||
sty GO.EXIT.SaveY+1
|
||
|
||
pla Restore P in A for later
|
||
|
||
plx Get PC and add 1 for return
|
||
ply
|
||
inx
|
||
bne .1
|
||
iny
|
||
|
||
.1 stx GO.EXIT.JMP+1
|
||
sty GO.EXIT.JMP+2
|
||
|
||
bcs GO.A2osX.BNK if CS, go AUXLC
|
||
|
||
bit RRAMWRAMBNK1 Go MAINLC (ProDOS), always BNK1
|
||
bit RRAMWRAMBNK1
|
||
|
||
tsx
|
||
stx A2osX.SaveSX
|
||
ldx A2osX.SaveSM
|
||
txs
|
||
sta CLRALTZP
|
||
bra GO.EXIT
|
||
|
||
GO.A2osX.BNK ldx #RRAMWRAMBNK1 Self Modified, initialized to BNK1 for INIT3
|
||
|
||
bit $C000,x
|
||
bit $C000,x
|
||
|
||
sta SETALTZP
|
||
tsx
|
||
stx A2osX.SaveSM
|
||
ldx A2osX.SaveSX
|
||
txs
|
||
*--------------------------------------
|
||
GO.EXIT pha push P on stack
|
||
GO.EXIT.SaveY ldy #$ff
|
||
GO.EXIT.SaveX ldx #$ff
|
||
GO.EXIT.SaveA lda #$ff
|
||
plp
|
||
GO.EXIT.JMP jmp $FFFF SELF MODIFIED
|
||
*--------------------------------------
|
||
* Called from ProDOS IRQ Manager (LCBNK1)
|
||
* A,X,Y, $FA->$FF Already Saved
|
||
* Main RAM,ZP/LC selected
|
||
* must begin with CLD
|
||
* must exit with RTS
|
||
* - CC if IRQ cleared, CS if NOT
|
||
*--------------------------------------
|
||
GP.IrqH cld
|
||
|
||
bit IRQ.SkipA2osX After A2osX IRQ.H ?
|
||
bmi GP.IrqH.Exit
|
||
|
||
sta SETALTZP switch to aux LC
|
||
tsx
|
||
stx A2osX.SaveSM
|
||
ldx A2osX.SaveSX
|
||
txs
|
||
|
||
GP.IrqH.JSR jsr K.IrqH.DEV SELF MODIFIED
|
||
|
||
tsx go back to Main
|
||
stx A2osX.SaveSX
|
||
ldx A2osX.SaveSM
|
||
txs
|
||
sta CLRALTZP
|
||
|
||
rts
|
||
|
||
GP.IrqH.Exit stz IRQ.SkipA2osX reset flag
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
CORE.VBLState .BS 1
|
||
CORE.IRQMode .BS 1
|
||
CORE.TickPerSec .BS 1
|
||
CORE.TickPer10t .BS 1
|
||
CORE.TickSec .BS 1
|
||
CORE.Tick10t .BS 1
|
||
CORE.CPUStatCnt .DA #100
|
||
CORE.LastPSID .DA #0
|
||
*--------------------------------------
|
||
DevMgr.Stat .DA DevMgr.FreeMem
|
||
DevMgr.Free .DA DevMgr.FreeMem
|
||
.DA DevMgr.HiMem
|
||
DevMgr.DevIdx .DA #1
|
||
*--------------------------------------
|
||
IRQ.InKernel .BS 1
|
||
IRQ.InLib .BS 1
|
||
IRQ.SkipA2osX .BS 1
|
||
|
||
IRQ.IntNum .BS 1
|
||
IRQ.VBL.n0 .BS 1
|
||
IRQ.VBL.0n .BS 1
|
||
IRQ.Mode .BS 1
|
||
IRQ.Tick .BS 1
|
||
*--------------------------------------
|
||
IRQ.Vectors .BS K.IRQDEV.MAX*2
|
||
*--------------------------------------
|
||
*GO.Reset jsr GO.A2osX
|
||
* jmp CORE.Run
|
||
*--------------------------------------
|
||
*BrkHandler bra *
|
||
*--------------------------------------
|
||
GP.CodeEnd .BS $BEE0-*
|
||
*--------------------------------------
|
||
* $BEE0->$BEEF : Public Variables
|
||
*--------------------------------------
|
||
.BS 16
|
||
*--------------------------------------
|
||
* $BEF0->$BEFF : Kernel Config Block
|
||
*--------------------------------------
|
||
.DA #6 A2osX.HZ=60hz
|
||
.DA #2 A2osX.TTYDEVS=2
|
||
.HS 000000000000
|
||
.DA #0 ChRoot/Preemptive Disabled
|
||
.HS 00000000000000 All Slots marked as "Free"
|
||
*--------------------------------------
|
||
GP.End .EQ *
|
||
MAN
|
||
SAVE USR/SRC/SYS/KERNEL.S.GP
|
||
LOAD USR/SRC/SYS/KERNEL.S
|
||
ASM
|