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17 lines
253 B
ArmAsm
17 lines
253 B
ArmAsm
;==========
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; page_flip
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;==========
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page_flip:
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lda DRAW_PAGE
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eor #4
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sta DRAW_PAGE
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beq page_flip_show_2 ; if draw page now 0, disp page 2
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page_flip_show_1:
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bit PAGE1
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rts ; 6
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page_flip_show_2:
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bit PAGE2 ; 4
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rts ; 6
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