collapseos/arch/z80/sms/blk/603

: XYPOS [ VDP_MEM LITN ] ;
CODE _ctl ( a -- sends LSB then MSB )
    HL POP, chkPS,
    A L LDrr, VDP_CTLPORT OUTiA,
    A H LDrr, VDP_CTLPORT OUTiA,
;CODE
CODE _data
    HL POP, chkPS,
    A L LDrr, VDP_DATAPORT OUTiA,
;CODE
Don't generalize XYPOS just yet It was ill-advised. 2020-05-16 04:07:22 +10:00			`: XYPOS [ VDP_MEM LITN ] ;`
sms: WIP ! 2020-05-15 12:15:31 +10:00			`CODE _ctl ( a -- sends LSB then MSB )`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`HL POP, chkPS,`
			`A L LDrr, VDP_CTLPORT OUTiA,`
			`A H LDrr, VDP_CTLPORT OUTiA,`
sms: WIP ! 2020-05-15 12:15:31 +10:00			`;CODE`
			`CODE _data`
z80a: make mnemonic names more uniform across assemblers Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help. 2020-06-28 12:01:56 +10:00			`HL POP, chkPS,`
			`A L LDrr, VDP_DATAPORT OUTiA,`
sms: WIP ! 2020-05-15 12:15:31 +10:00			`;CODE`