mirror of
https://github.com/pret/pokered.git
synced 2024-10-24 15:27:10 +00:00
cd649184f5
rename functions, clean up address/wram comments, other misc only broken up so that all changes are viewable on github
143 lines
3.1 KiB
NASM
Executable file
143 lines
3.1 KiB
NASM
Executable file
_Multiply: ; 37d41 (d:7d41)
|
|
ld a, $8
|
|
ld b, a
|
|
xor a
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
ld [$ff9b], a
|
|
ld [H_SAVEDNUMTOPRINT], a
|
|
ld [$ff9d], a
|
|
ld [$ff9e], a
|
|
.asm_37d4f
|
|
ld a, [H_REMAINDER] ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
srl a
|
|
ld [H_REMAINDER], a ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
jr nc, .asm_37d77
|
|
ld a, [$ff9e]
|
|
ld c, a
|
|
ld a, [$ff98]
|
|
add c
|
|
ld [$ff9e], a
|
|
ld a, [$ff9d]
|
|
ld c, a
|
|
ld a, [$ff97]
|
|
adc c
|
|
ld [$ff9d], a
|
|
ld a, [H_SAVEDNUMTOPRINT]
|
|
ld c, a
|
|
ld a, [H_NUMTOPRINT] ; (aliases: H_MULTIPLICAND)
|
|
adc c
|
|
ld [H_SAVEDNUMTOPRINT], a
|
|
ld a, [$ff9b]
|
|
ld c, a
|
|
ld a, [H_DIVIDEND] ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
adc c
|
|
ld [$ff9b], a
|
|
.asm_37d77
|
|
dec b
|
|
jr z, .asm_37d94
|
|
ld a, [$ff98]
|
|
sla a
|
|
ld [$ff98], a
|
|
ld a, [$ff97]
|
|
rl a
|
|
ld [$ff97], a
|
|
ld a, [H_NUMTOPRINT] ; (aliases: H_MULTIPLICAND)
|
|
rl a
|
|
ld [H_NUMTOPRINT], a ; (aliases: H_MULTIPLICAND)
|
|
ld a, [H_DIVIDEND] ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
rl a
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
jr .asm_37d4f
|
|
.asm_37d94
|
|
ld a, [$ff9e]
|
|
ld [$ff98], a
|
|
ld a, [$ff9d]
|
|
ld [$ff97], a
|
|
ld a, [H_SAVEDNUMTOPRINT]
|
|
ld [H_NUMTOPRINT], a ; (aliases: H_MULTIPLICAND)
|
|
ld a, [$ff9b]
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
ret
|
|
|
|
_Divide: ; 37da5 (d:7da5)
|
|
xor a
|
|
ld [$ff9a], a
|
|
ld [$ff9b], a
|
|
ld [H_SAVEDNUMTOPRINT], a
|
|
ld [$ff9d], a
|
|
ld [$ff9e], a
|
|
ld a, $9
|
|
ld e, a
|
|
.asm_37db3
|
|
ld a, [$ff9a]
|
|
ld c, a
|
|
ld a, [H_NUMTOPRINT] ; (aliases: H_MULTIPLICAND)
|
|
sub c
|
|
ld d, a
|
|
ld a, [H_REMAINDER] ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
ld c, a
|
|
ld a, [H_DIVIDEND] ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
sbc c
|
|
jr c, .asm_37dce
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
ld a, d
|
|
ld [H_NUMTOPRINT], a ; (aliases: H_MULTIPLICAND)
|
|
ld a, [$ff9e]
|
|
inc a
|
|
ld [$ff9e], a
|
|
jr .asm_37db3
|
|
.asm_37dce
|
|
ld a, b
|
|
cp $1
|
|
jr z, .asm_37e18
|
|
ld a, [$ff9e]
|
|
sla a
|
|
ld [$ff9e], a
|
|
ld a, [$ff9d]
|
|
rl a
|
|
ld [$ff9d], a
|
|
ld a, [H_SAVEDNUMTOPRINT]
|
|
rl a
|
|
ld [H_SAVEDNUMTOPRINT], a
|
|
ld a, [$ff9b]
|
|
rl a
|
|
ld [$ff9b], a
|
|
dec e
|
|
jr nz, .asm_37e04
|
|
ld a, $8
|
|
ld e, a
|
|
ld a, [$ff9a]
|
|
ld [H_REMAINDER], a ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
xor a
|
|
ld [$ff9a], a
|
|
ld a, [H_NUMTOPRINT] ; (aliases: H_MULTIPLICAND)
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
ld a, [$ff97]
|
|
ld [H_NUMTOPRINT], a ; (aliases: H_MULTIPLICAND)
|
|
ld a, [$ff98]
|
|
ld [$ff97], a
|
|
.asm_37e04
|
|
ld a, e
|
|
cp $1
|
|
jr nz, .asm_37e0a
|
|
dec b
|
|
.asm_37e0a
|
|
ld a, [H_REMAINDER] ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
srl a
|
|
ld [H_REMAINDER], a ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
ld a, [$ff9a]
|
|
rr a
|
|
ld [$ff9a], a
|
|
jr .asm_37db3
|
|
.asm_37e18
|
|
ld a, [H_NUMTOPRINT] ; (aliases: H_MULTIPLICAND)
|
|
ld [H_REMAINDER], a ; (aliases: H_DIVISOR, H_MULTIPLIER, H_POWEROFTEN)
|
|
ld a, [$ff9e]
|
|
ld [$ff98], a
|
|
ld a, [$ff9d]
|
|
ld [$ff97], a
|
|
ld a, [H_SAVEDNUMTOPRINT]
|
|
ld [H_NUMTOPRINT], a ; (aliases: H_MULTIPLICAND)
|
|
ld a, [$ff9b]
|
|
ld [H_DIVIDEND], a ; (aliases: H_PRODUCT, H_PASTLEADINGZEROES, H_QUOTIENT)
|
|
ret
|