A2osX/BIN/FORTH.S.GFX.txt
2021-07-24 22:42:23 +02:00

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NEW
AUTO 3,1
*--------------------------------------
GFX.Open >PUSHW L.DEV.GFX
>PUSHBI 0
>SYSCALL Open
bcs .9
>STA.G hDevGFX
bra GFX.TEXT
.9 rts
*--------------------------------------
GFX.Close >LDA.G hDevGFX
beq .9
>SYSCALL Close
.9 rts
*--------------------------------------
GFX.TEXT ldy #S.PS.hStdIn
lda (pPS),y
bit #1
bne GFX.IOCTL
GFX.TEXT.RTS clc
rts
*--------------------------------------
GFX.GR ldy #S.PS.hStdIn
lda (pPS),y
bit #1
beq GFX.TEXT.RTS
>LDA.G hDevGFX
beq GFX.TEXT.RTS
GFX.IOCTL >PUSHA
>PUSHBI IOCTL.CONTROL
>PUSHWZ
>SYSCALL IOCTL
rts
*--------------------------------------
* (Y X C)
*--------------------------------------
GFX.PLOT ldx #S.CB.CMD.SETPIXEL
jsr GFX.WriteX
lda pStack
clc
adc #8
sta pStack
clc
rts
*--------------------------------------
* (Y2 X2 Y1 X1 C)
*--------------------------------------
GFX.RECT ldx #S.CB.CMD.FILLRECT
jsr GFX.WriteX
lda pStack
clc
adc #12
sta pStack
clc
rts
*--------------------------------------
GFX.WriteX ldy #1
lda (pStack)
sta (pStack),y
lda #S.CB.M.C16
sta (pStack)
>PUSHBI S.CB.OP.SET
txa
>PUSHA
>PUSHB.G hDevGFX
>PUSHBI IOCTL.WRITE
lda pStack
clc
adc #2
tay
lda pStack+1
adc #0
>PUSHYA
>SYSCALL IOCTL
clc DHGR.DRV bug ?
rts
*--------------------------------------
*--------------------------------------
*--------------------------------------
MAN
SAVE usr/src/bin/forth.s.gfx
LOAD usr/src/bin/forth.s
ASM