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FarPrintText::
; print text b:hl at (1, 14)
ldh a, [hLoadedROMBank]
push af
ld a, b
call BankswitchCommon
call PrintText
pop af
call BankswitchCommon
ret
PrintNumber::
; Print the c-digit, b-byte value at de.
; Allows 2 to 7 digits. For 1-digit numbers, add
; the value to char "0" instead of calling PrintNumber.
; Flags LEADING_ZEROES and LEFT_ALIGN can be given
; in bits 7 and 6 of b respectively.
push bc
xor a
ldh [hPastLeadingZeros], a
ldh [hNumToPrint], a
ldh [hNumToPrint + 1], a
ld a, b
and $f
cp 1
jr z, .byte
cp 2
jr z, .word
.long
ld a, [de]
ldh [hNumToPrint], a
inc de
ld a, [de]
ldh [hNumToPrint + 1], a
inc de
ld a, [de]
ldh [hNumToPrint + 2], a
jr .start
.word
ld a, [de]
ldh [hNumToPrint + 1], a
inc de
ld a, [de]
ldh [hNumToPrint + 2], a
jr .start
.byte
ld a, [de]
ldh [hNumToPrint + 2], a
.start
push de
ld d, b
ld a, c
ld b, a
xor a
ld c, a
ld a, b
cp 2
jr z, .tens
cp 3
jr z, .hundreds
cp 4
jr z, .thousands
cp 5
jr z, .ten_thousands
cp 6
jr z, .hundred_thousands
print_digit: MACRO
IF (\1) / $10000
ld a, \1 / $10000 % $100
ELSE
xor a
ENDC
ldh [hPowerOf10 + 0], a
IF (\1) / $100
ld a, \1 / $100 % $100
ELSE
xor a
ENDC
ldh [hPowerOf10 + 1], a
ld a, \1 / $1 % $100
ldh [hPowerOf10 + 2], a
call .PrintDigit
call .NextDigit
ENDM
.millions print_digit 1000000
.hundred_thousands print_digit 100000
.ten_thousands print_digit 10000
.thousands print_digit 1000
.hundreds print_digit 100
.tens
ld c, 0
ldh a, [hNumToPrint + 2]
.mod
cp 10
jr c, .ok
sub 10
inc c
jr .mod
.ok
ld b, a
ldh a, [hPastLeadingZeros]
or c
ldh [hPastLeadingZeros], a
jr nz, .past
call .PrintLeadingZero
jr .next
.past
ld a, "0"
add c
ld [hl], a
.next
call .NextDigit
.ones
ld a, "0"
add b
ld [hli], a
pop de
dec de
pop bc
ret
.PrintDigit:
; Divide by the current decimal place.
; Print the quotient, and keep the modulus.
ld c, 0
.loop
ldh a, [hPowerOf10]
ld b, a
ldh a, [hNumToPrint]
ldh [hSavedNumToPrint], a
cp b
jr c, .underflow0
sub b
ldh [hNumToPrint], a
ldh a, [hPowerOf10 + 1]
ld b, a
ldh a, [hNumToPrint + 1]
ldh [hSavedNumToPrint + 1], a
cp b
jr nc, .noborrow1
ldh a, [hNumToPrint]
or 0
jr z, .underflow1
dec a
ldh [hNumToPrint], a
ldh a, [hNumToPrint + 1]
.noborrow1
sub b
ldh [hNumToPrint + 1], a
ldh a, [hPowerOf10 + 2]
ld b, a
ldh a, [hNumToPrint + 2]
ldh [hSavedNumToPrint + 2], a
cp b
jr nc, .noborrow2
ldh a, [hNumToPrint + 1]
and a
jr nz, .borrowed
ldh a, [hNumToPrint]
and a
jr z, .underflow2
dec a
ldh [hNumToPrint], a
xor a
.borrowed
dec a
ldh [hNumToPrint + 1], a
ldh a, [hNumToPrint + 2]
.noborrow2
sub b
ldh [hNumToPrint + 2], a
inc c
jr .loop
.underflow2
ldh a, [hSavedNumToPrint + 1]
ldh [hNumToPrint + 1], a
.underflow1
ldh a, [hSavedNumToPrint]
ldh [hNumToPrint], a
.underflow0
ldh a, [hPastLeadingZeros]
or c
jr z, .PrintLeadingZero
ld a, "0"
add c
ld [hl], a
ldh [hPastLeadingZeros], a
ret
.PrintLeadingZero:
bit BIT_LEADING_ZEROES, d
ret z
ld [hl], "0"
ret
.NextDigit:
; Increment unless the number is left-aligned,
; leading zeroes are not printed, and no digits
; have been printed yet.
bit BIT_LEADING_ZEROES, d
jr nz, .inc
bit BIT_LEFT_ALIGN, d
jr z, .inc
ldh a, [hPastLeadingZeros]
and a
ret z
.inc
inc hl
ret
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