Merge pull request #256 from Rangi42/master

Add subdirectories to engine/ similar to pokecrystal

1 files changed, 0 insertions, 214 deletions

diff --git a/engine/bcd.asm b/engine/bcd.asm
deleted file mode 100644
index 2d0b43df..00000000
--- a/engine/bcd.asm
+++ /dev/null
@@ -1,214 +0,0 @@
-DivideBCDPredef::
-DivideBCDPredef2::
-DivideBCDPredef3::
-DivideBCDPredef4::
-	call GetPredefRegisters
-
-DivideBCD::
-	xor a
-	ld [hDivideBCDBuffer], a
-	ld [hDivideBCDBuffer+1], a
-	ld [hDivideBCDBuffer+2], a
-	ld d, $1
-.mulBy10Loop 
-; multiply the divisor by 10 until the leading digit is nonzero
-; to set up the standard long division algorithm
-	ld a, [hDivideBCDDivisor]
-	and $f0
-	jr nz, .next
-	inc d
-	ld a, [hDivideBCDDivisor]
-	swap a
-	and $f0
-	ld b, a
-	ld a, [hDivideBCDDivisor+1]
-	swap a
-	ld [hDivideBCDDivisor+1], a
-	and $f
-	or b
-	ld [hDivideBCDDivisor], a
-	ld a, [hDivideBCDDivisor+1]
-	and $f0
-	ld b, a
-	ld a, [hDivideBCDDivisor+2]
-	swap a
-	ld [hDivideBCDDivisor+2], a
-	and $f
-	or b
-	ld [hDivideBCDDivisor+1], a
-	ld a, [hDivideBCDDivisor+2]
-	and $f0
-	ld [hDivideBCDDivisor+2], a
-	jr .mulBy10Loop
-.next
-	push de
-	push de
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, b
-	swap a
-	and $f0
-	ld [hDivideBCDBuffer], a
-	dec d
-	jr z, .next2
-	push de
-	call DivideBCD_divDivisorBy10
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, [hDivideBCDBuffer]
-	or b
-	ld [hDivideBCDBuffer], a
-	dec d
-	jr z, .next2
-	push de
-	call DivideBCD_divDivisorBy10
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, b
-	swap a
-	and $f0
-	ld [hDivideBCDBuffer+1], a
-	dec d
-	jr z, .next2
-	push de
-	call DivideBCD_divDivisorBy10
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, [hDivideBCDBuffer+1]
-	or b
-	ld [hDivideBCDBuffer+1], a
-	dec d
-	jr z, .next2
-	push de
-	call DivideBCD_divDivisorBy10
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, b
-	swap a
-	and $f0
-	ld [hDivideBCDBuffer+2], a
-	dec d
-	jr z, .next2
-	push de
-	call DivideBCD_divDivisorBy10
-	call DivideBCD_getNextDigit
-	pop de
-	ld a, [hDivideBCDBuffer+2]
-	or b
-	ld [hDivideBCDBuffer+2], a
-.next2
-	ld a, [hDivideBCDBuffer]
-	ld [hDivideBCDQuotient], a ; the same memory location as hDivideBCDDivisor
-	ld a, [hDivideBCDBuffer+1]
-	ld [hDivideBCDQuotient+1], a
-	ld a, [hDivideBCDBuffer+2]
-	ld [hDivideBCDQuotient+2], a
-	pop de
-	ld a, $6 
-	sub d
-	and a
-	ret z
-.divResultBy10loop
-	push af
-	call DivideBCD_divDivisorBy10
-	pop af
-	dec a
-	jr nz, .divResultBy10loop
-	ret
-
-DivideBCD_divDivisorBy10:
-	ld a, [hDivideBCDDivisor+2]
-	swap a
-	and $f
-	ld b, a
-	ld a, [hDivideBCDDivisor+1]
-	swap a
-	ld [hDivideBCDDivisor+1], a
-	and $f0
-	or b
-	ld [hDivideBCDDivisor+2], a
-	ld a, [hDivideBCDDivisor+1]
-	and $f
-	ld b, a
-	ld a, [hDivideBCDDivisor]
-	swap a
-	ld [hDivideBCDDivisor], a
-	and $f0
-	or b
-	ld [hDivideBCDDivisor+1], a
-	ld a, [hDivideBCDDivisor]
-	and $f
-	ld [hDivideBCDDivisor], a
-	ret
-
-DivideBCD_getNextDigit:
-	ld bc, $3
-.loop
-	ld de, hMoney ; the dividend
-	ld hl, hDivideBCDDivisor
-	push bc
-	call StringCmp
-	pop bc
-	ret c
-	inc b
-	ld de, hMoney+2 ; since SubBCD works starting from the least significant digit
-	ld hl, hDivideBCDDivisor+2  
-	push bc
-	call SubBCD
-	pop bc
-	jr .loop
-
-
-AddBCDPredef::
-	call GetPredefRegisters
-
-AddBCD::
-	and a
-	ld b, c
-.add
-	ld a, [de]
-	adc [hl]
-	daa
-	ld [de], a
-	dec de
-	dec hl
-	dec c
-	jr nz, .add
-	jr nc, .done
-	ld a, $99
-	inc de
-.fill
-	ld [de], a
-	inc de
-	dec b
-	jr nz, .fill
-.done
-	ret
-
-
-SubBCDPredef::
-	call GetPredefRegisters
-
-SubBCD::
-	and a
-	ld b, c
-.sub
-	ld a, [de]
-	sbc [hl]
-	daa
-	ld [de], a
-	dec de
-	dec hl
-	dec c
-	jr nz, .sub
-	jr nc, .done
-	ld a, $00
-	inc de
-.fill
-	ld [de], a
-	inc de
-	dec b
-	jr nz, .fill
-	scf
-.done
-	ret