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https://github.com/deater/dos33fsprogs.git
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100 lines
1.2 KiB
ArmAsm
100 lines
1.2 KiB
ArmAsm
; Ootw Checkpoint2 -- the background miners
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; I suspect they are working against their will
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ootw_draw_miners:
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; move miners
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miner1:
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lda #10
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sta XPOS
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lda #32
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sta YPOS
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lda #0
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inc miner1_smc+1
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bpl miner1_nomove
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miner1_smc:
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lda #0 ; smc
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lsr
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lsr
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lsr
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lsr
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miner1_nomove:
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and #$6
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tay
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lda miner_sprites,Y
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sta INL
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lda miner_sprites+1,Y
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sta INH
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jsr put_sprite_crop
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miner2:
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lda #14
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sta XPOS
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lda #28
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sta YPOS
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lda #0
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inc miner2_smc+1
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bpl miner2_nomove
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miner2_smc:
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lda #67 ; smc
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lsr
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lsr
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lsr
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lsr
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miner2_nomove:
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and #$6
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tay
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lda miner_sprites,Y
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sta INL
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lda miner_sprites+1,Y
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sta INH
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jmp put_sprite_crop ; tail call
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miner_sprites:
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.word miner_sprite0
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.word miner_sprite1
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.word miner_sprite2
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.word miner_sprite3
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miner_sprite0:
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.byte 3,4
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.byte $87,$7A,$AA
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.byte $55,$AA,$AA
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.byte $00,$AA,$AA
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.byte $55,$AA,$AA
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miner_sprite1:
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.byte 3,4
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.byte $AA,$87,$AA
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.byte $55,$AA,$A7
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.byte $00,$AA,$AA
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.byte $55,$AA,$AA
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miner_sprite2:
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.byte 3,4
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.byte $AA,$AA,$AA
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.byte $55,$8A,$77
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.byte $00,$AA,$A7
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.byte $55,$AA,$AA
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miner_sprite3:
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.byte 3,4
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.byte $AA,$AA,$AA
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.byte $55,$AA,$7A
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.byte $00,$A8,$77
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.byte $55,$AA,$AA
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