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38 lines
389 B
ArmAsm
38 lines
389 B
ArmAsm
;====================================
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; wait for keypress or a few seconds
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;====================================
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; A is length to wait
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wait_a_bit:
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bit KEYRESET
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tax
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keyloop:
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lda #200 ; delay a bit
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jsr wait
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lda KEYPRESS
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bmi done_keyloop
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dex
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bne keyloop
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beq no_escape
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done_keyloop:
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and #$7f
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cmp #27
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bne no_escape
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inc ESC_PRESSED
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no_escape:
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bit KEYRESET
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rts
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