A2osX/SYS/KERNEL.S.GP.txt

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2016-06-07 06:10:18 +00:00
PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* A2osX.SYSCALL (AUXLC to AUXLC)
* In:
* X = SYSfnc.Index
* Y,A = free for Inline param
*--------------------------------------
A2osX.GP.Start jmp (KERNEL.SYSCALL,x)
*--------------------------------------
* LIBCALL (AUXLC to AUXLC)
* In:
* Y = LIB.ID
* X = LIBfnc.Index
* A = free for Inline param
*--------------------------------------
jmp A2osX.LIBCALL1
*--------------------------------------
* Kernel.MLICALL (AUXLC to MAINLC)
* In:
* X = MLI Function
* A = Param Count
*--------------------------------------
jmp A2osX.MLICALL1
*--------------------------------------
jmp A2osX.ROMCALL1
*--------------------------------------
jmp BrkHandler
.BS $BE10-*
*--------------------------------------
jmp (pDev) pDevJmp
jmp (pCode) pCodeJmp
jmp (pLib) pLibJmp
.BS $BE20-*
*--------------------------------------
GO.Reset jsr GO.AUXLC
jmp S.KernelRun
*--------------------------------------
A2osX.LIBCALL1 pha
phx
tya
>SYSCALL SYS.GetMemPtrA
>STYA .1+1
plx
pla
.1 jmp $FFFF
*--------------------------------------
A2osX.MLICALL1 jsr GO.MAINLC
stx .1
sta MLICALL.PARAMS
jsr MLI
.1 .BS 1
.DA MLICALL.PARAMS
jsr GO.AUXLC
rts
*--------------------------------------
A2osX.ROMCALL1 plx
stx .1+1
plx
stx .1+2
ldx RROMBNK1
jsr .1
ldx RRAMWRAMBNK1
ldx RRAMWRAMBNK1
rts
.1 jmp $FFFF
*--------------------------------------
GO.MAINLC php
clc
.HS 2C bit abs
GO.AUXLC php
sec
sei
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
ldx RRAMWRAMBNK1
ldx RRAMWRAMBNK1
ldy pStack
bcs GO.AUXLC1
GO.MAINLC1 tsx
stx A2osX.SaveSX
ldx A2osX.SaveSM
txs
stx CLRALTZP
bra GO.EXIT
*--------------------------------------
GO.AUXLC1 stx SETALTZP
tsx
stx A2osX.SaveSM
ldx A2osX.SaveSX
txs
*--------------------------------------
GO.EXIT sty pStack
pha push P on stack
ldy A2osX.SaveY
ldx A2osX.SaveX
lda A2osX.SaveA
plp
GO.EXIT.JMP jmp $FFFF
*--------------------------------------
A2osX.SaveA .BS 1
A2osX.SaveX .BS 1
A2osX.SaveY .BS 1
*--------------------------------------
BrkHandler sta SETPAGE2
bra *
*--------------------------------------
IrqHandler bra *
*--------------------------------------
A2osX.GP.End .EQ *
*--------------------------------------
* CONTROL SECTION :
*--------------------------------------
.DO A2osX.GP.End>$BEBF
ERROR:GP too big
.FIN
*--------------------------------------
.BS A2osX.GP.START+$100-*
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.GP
LOAD SYS/KERNEL.S
ASM