2020-04-26 14:26:40 +00:00
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GRCG_SETCOLOR_DIRECT_DEF macro sgm
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public _grcg_setcolor_direct_seg&sgm&_raw
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_grcg_setcolor_direct_seg&sgm&_raw proc near
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2018-12-06 19:11:13 +00:00
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cli
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2020-04-26 14:26:40 +00:00
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mov dx, 7Eh
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rept 4
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shr ah, 1
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sbb al, al
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out dx, al
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endm
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2018-12-06 19:11:13 +00:00
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sti
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ret
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2020-04-26 14:26:40 +00:00
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_grcg_setcolor_direct_seg&sgm&_raw endp
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2018-12-06 19:11:13 +00:00
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endm
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2018-12-21 22:03:25 +00:00
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; Convenience macro to prepare ES:DI.
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GRCG_FILL_PLAYFIELD_ROWS macro y:req, num_rows:req, scratch_sgm:=<ax>
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2020-08-25 18:29:24 +00:00
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mov scratch_sgm, GRAM_400 + (((y + PLAYFIELD_TOP) * ROW_SIZE) shr 4)
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2018-12-21 22:03:25 +00:00
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mov es, scratch_sgm
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2020-08-25 18:29:24 +00:00
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mov di, ((num_rows - 1) * ROW_SIZE) + PLAYFIELD_VRAM_LEFT
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2018-12-21 22:03:25 +00:00
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call _grcg_fill_playfield_rows
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endm
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