42 lines
578 B
ArmAsm
42 lines
578 B
ArmAsm
;======================
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; hgr 1x5 draw sprite
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;======================
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; over-writes
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; SPRITE in INL/INH
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; Location at CURSOR_X CURSOR_Y*7
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; X, Y, A trashed
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hgr_draw_sprite_1x5:
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; set up pointers
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lda INL
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sta h1x5_smc1+1
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lda INH
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sta h1x5_smc1+2
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ldx #0
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hgr_1x5_sprite_yloop:
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txa ; row
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clc
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adc CURSOR_Y ; add in y offset
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; calc GBASL/GBASH from lookup table
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tay
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lda hposn_low,Y
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sta GBASL
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lda hposn_high,Y
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sta GBASH
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ldy CURSOR_X
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h1x5_smc1:
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lda $D000,X ; not $0000 or it will make it ZP
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sta (GBASL),Y
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inx
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cpx #5
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bne hgr_1x5_sprite_yloop
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rts
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