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https://github.com/UzixLS/zx-sizif-xxs.git
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36 lines
965 B
NASM
36 lines
965 B
NASM
pause_init:
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xor a
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ld (var_pause_is_released), a
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ld d, PAUSE_BODY_ATTR
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ld c, PAUSE_X
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ld b, PAUSE_Y
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ld e, PAUSE_WIDTH
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call draw_attribute_line
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ld b, PAUSE_Y+2
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ld e, PAUSE_WIDTH
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call draw_attribute_line
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ld d, PAUSE_TEXT_ATTR
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ld b, PAUSE_Y+1
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ld e, PAUSE_WIDTH
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call draw_attribute_line
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ld b, (PAUSE_Y+1)<<3
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ld hl, str_pause
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call print_string
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ret
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pause_process:
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xor a ; read pause key state in bit 1 of #00FF port
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in a, (#ff) ; ...
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bit 1, a ; check key is hold
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jr nz, .is_hold ; yes?
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ld a, 1
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ld (var_pause_is_released), a
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ret
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.is_hold:
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ld a, (var_pause_is_released) ; if key wasnt released - do nothing
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or a ; ...
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ret z ; ...
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ld a, 1 ; otherwise - var_exit_flag = 1
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ld (var_exit_flag), a ; ...
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ret
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