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70 lines
1.1 KiB
NASM
70 lines
1.1 KiB
NASM
include "constants.asm"
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; if DEBUG
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SECTION "home/print_text.asm", ROM0
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; else
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; SECTION "Print Letter Delay", ROM0[$3367]
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; endc
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PrintLetterDelay:: ; 33a3 (0:33a3)
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ld a, [wce5f]
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bit 4, a
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ret nz
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ld a, [wTextBoxFlags]
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bit 1, a
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ret z
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push hl
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push de
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push bc
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ld a, [wTextBoxFlags]
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bit 0, a
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jr z, .waitOneFrame
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ld a, [wce5f]
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and $07
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jr .initFrameCnt
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.waitOneFrame
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ld a, $01
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.initFrameCnt
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ld [wVBlankJoyFrameCounter], a
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.checkButtons
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call GetJoypad
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ldh a, [hJoyState]
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.checkAButton
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bit 0, a ; is the A button pressed?
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jr z, .checkBButton
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jr .endWait
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.checkBButton
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bit 1, a ; is the B button pressed?
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jr z, .buttonsNotPressed
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.endWait
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call DelayFrame
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jr .done
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.buttonsNotPressed ; if neither A nor B is pressed
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ld a, [wVBlankJoyFrameCounter]
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and a
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jr nz, .checkButtons
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.done
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pop bc
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pop de
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pop hl
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ret
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; 0x33e3
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CopyDataUntil:: ; 33e3
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; Copy [hl .. bc) to de.
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; In other words, the source data is
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; from hl up to but not including bc,
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; and the destination is de.
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.asm_33e3: ; 00:33e3
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ld a, [hli]
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ld [de], a
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inc de
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ld a, h
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cp b
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jr nz, .asm_33e3
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ld a, l
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cp c
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jr nz, .asm_33e3
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ret |