A2osX/A2osX.S.GP.txt

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2015-03-08 21:45:23 +00:00
PR#3
PREFIX /DATA/A2OSX
NEW
INC 1
AUTO 6
.LIST OFF
.OP 65C02
*--------------------------------------
* **** START OF A2osX Global Page ****
*--------------------------------------
A2osX.GP.start .EQ *
*--------------------------------------
.PH $300
*--------------------------------------
A2osX.GP bra A2osX.SYSCALL3
bra A2osX.MLICALL3
bra A2osX.LIBCALL3
bra A2osX.SLEEP3
bra Kernel.MLICALL3
bra Kernel.DRVCALL3
bra Kernel.BINCALL3
bra Kernel.LIBCALL3
.BS A2osX.300CODE-*
*--------------------------------------
* A2osX.SYSCALL (MAINLC to AUXLC)
* In:
* X = SYSfnc.Index
* Y,A = free for Inline param
*--------------------------------------
A2osX.SYSCALL3 jsr GO.AUXLC
jsr $E003
jsr GO.MAINLC
rts
*--------------------------------------
* A2osX.MLICALL (MAINLC to MAINLC)
* In:
* X = MLI Function
* A = Param Count
*--------------------------------------
A2osX.MLICALL3 stx .1
sta MLICALL.PARAMS
jsr MLI
.1 .BS 1
.DA MLICALL.PARAMS
rts
*--------------------------------------
* LIBCALL (MAINLC to MAINLC)
* In:
* Y = LIB.ID
* X = LIBfnc.Index
* A = free for Inline param
*--------------------------------------
A2osX.LIBCALL3 pha
phx
tya
>SYSCALL SYS.GetMemPtrA
>STYA .1+1
plx
pla
.1 jmp $FFFF
*--------------------------------------
A2osX.SLEEP3 jmp A2osX.SLEEP31
*--------------------------------------
* SLEEP (MAINLC to AUXLC)
* In:
*--------------------------------------
* Kernel.MLICALL (AUXLC to MAINLC)
* In:
* X = MLI Function
* A = Param Count
*--------------------------------------
Kernel.MLICALL3 jsr GO.MAINLC
jsr A2osX.MLICALL3
jsr GO.AUXLC
rts
*--------------------------------------
* Kernel.DRVCALL (AUXLC to MAINLC)
* In:
* X = DRV Function Index
* Y,A = pDevContext
*--------------------------------------
Kernel.DRVCALL3 jsr GO.MAINLC
>STYA pDevContext
jsr Kernel.JMP3
jsr GO.AUXLC
rts
*--------------------------------------
* Kernel.BINCALL (AUXLC to MAINLC)
* In:
* X = BIN Function Index
* Y,A = pPsContext
*--------------------------------------
Kernel.BINCALL3 jsr GO.MAINLC
>STYA pPsContext
jsr Kernel.JMP3
jsr GO.AUXLC
rts
*--------------------------------------
* Kernel.LIBCALL (AUXLC to MAINLC)
* In:
* X = Lib Function Index
*--------------------------------------
Kernel.LIBCALL3 jsr GO.MAINLC
jsr Kernel.JMP3
jsr GO.AUXLC
rts
*--------------------------------------
Kernel.JMP3 jmp (Kernel.JMP)
*--------------------------------------
GO.MAINLC php
clc
bra GO.SAVE.REG
GO.AUXLC php
sec
GO.SAVE.REG sta A2osX.SaveA
pla keep P in A for later
stx A2osX.SaveX
sty A2osX.SaveY
plx
ply
inx
bne .1
iny
.1 stx GO.EXIT.JMP+1
sty GO.EXIT.JMP+2
sei
ldy R.SP
tsx
stx A2osX.SaveS
bcs GO.AUXLC1
GO.MAINLC1 stx CLRALTZP
ldx RROMBNK2
ldx A2osX.SaveS
txs
sty R.SP
bra GO.EXIT
*--------------------------------------
GO.AUXLC1 stx SETALTZP
ldx RRAMWRAMBNK2
ldx RRAMWRAMBNK2
ldx A2osX.SaveS
txs
sty R.SP
*--------------------------------------
GO.EXIT pha push P on stack
ldy A2osX.SaveY
ldx A2osX.SaveX
lda A2osX.SaveA
plp
GO.EXIT.JMP jmp $FFFF
*--------------------------------------
A2osX.SLEEP31 ldy #S.PS.hCS
lda (pPsContext),y
>SYSCALL SYS.GetMemPtrA
>STYA Kernel.JMP
ldy #S.PS.PC
pla get PC LO
plx get PC HI
inc Advance PC one Byte
bne .1
inx
.1 sec
sbc Kernel.JMP
sta (pPsContext),y
iny
txa
sbc Kernel.JMP+1
sta (pPsContext),y
clc No error,
rts back to Kernel
*--------------------------------------
.EP
*--------------------------------------
A2osX.GP.End
*--------------------------------------
MAN
SAVE A2OSX.S.GP
LOAD A2OSX.S
ASM