38 lines
1.1 KiB
ArmAsm
38 lines
1.1 KiB
ArmAsm
; Specialize routines for handling two sprites.
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TwoSpriteData mac
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lda (sprite_ptr1),y
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db $37,sprite_ptr0 ; and [sprite_ptr0],y
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ora (sprite_ptr0),y
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<<<
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TwoSpriteMask mac
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db $B7,sprite_ptr1 ; lda [sprite_ptr1],y
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db $37,sprite_ptr0 ; and [sprite_ptr0],y
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<<<
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CopyFourSpritesDataAndMaskToDP
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CopyThreeSpritesDataAndMaskToDP
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CopyTwoSpritesDataAndMaskToDP
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pei DP2_SPRITEDATA_AND_TILESTORE_BANKS
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plb
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]line equ 0
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lup 8
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ldy #{]line*SPRITE_PLANE_SPAN}
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TwoSpriteData
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sta tmp_sprite_data+{]line*4}
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TwoSpriteMask
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sta tmp_sprite_mask+{]line*4}
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ldy #{]line*SPRITE_PLANE_SPAN}+2
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TwoSpriteData
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sta tmp_sprite_data+{]line*4}+2
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TwoSpriteMask
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sta tmp_sprite_mask+{]line*4}+2
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]line equ ]line+1
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--^
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plb
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jmp (K_TS_SPRITE_TILE_DISP,x)
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