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79 lines
1.1 KiB
NASM
79 lines
1.1 KiB
NASM
PrintFiveDigitNumber: ; unreferenced
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; Debug function?
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; Input: bc = value, de = destination
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ld a, b
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ld b, c
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ld c, a
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push bc ; de points to this on the stack for PrintNum
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push de
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ld hl, sp+2
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ld d, h
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ld e, l
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pop hl
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lb bc, PRINTNUM_LEADINGZEROS | 2, 5
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call PrintNum
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pop bc
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ret
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PrintHoursMins:
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; Hours in b, minutes in c
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ld a, b
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cp 12
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push af
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jr c, .AM
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jr z, .PM
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sub 12
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jr .PM
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.AM:
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or a
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jr nz, .PM
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ld a, 12
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.PM:
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ld b, a
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; Crazy stuff happening with the stack
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push bc
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ld hl, sp+1
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push de
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push hl
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pop de
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pop hl
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ld [hl], ' '
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lb bc, 1, 2
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call PrintNum
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ld [hl], ':'
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inc hl
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ld d, h
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ld e, l
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ld hl, sp+0
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push de
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push hl
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pop de
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pop hl
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lb bc, PRINTNUM_LEADINGZEROS | 1, 2
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call PrintNum
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pop bc
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ld de, String_AM
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pop af
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jr c, .place_am_pm
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ld de, String_PM
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.place_am_pm
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inc hl
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call PlaceString
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ret
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String_AM: db "AM@"
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String_PM: db "PM@"
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UpdateTimePredef::
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call UpdateTime
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ld hl, wDSTBackupDay
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ld a, [wCurDay]
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ld [hli], a ; wDSTBackupDay
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ldh a, [hHours]
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ld [hli], a ; wDSTBackupHours
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ldh a, [hMinutes]
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ld [hli], a ; wDSTBackupMinutes
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ldh a, [hSeconds]
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ld [hli], a ; wDSTBackupSeconds
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ret
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