pokeemerald/asm/coins.s
2017-09-09 14:24:18 +02:00

75 lines
1.0 KiB
ArmAsm

.include "asm/macros.inc"
.include "constants/constants.inc"
.syntax unified
.text
thumb_func_start AddCoins
@ bool8 AddCoins(u16 toAdd)
AddCoins: @ 8145C80
push {r4,lr}
lsls r0, 16
lsrs r4, r0, 16
bl GetCoins
lsls r0, 16
lsrs r1, r0, 16
ldr r0, =0x0000270e
cmp r1, r0
bls _08145C9C
movs r0, 0
b _08145CC0
.pool
_08145C9C:
adds r0, r1, r4
cmp r1, r0
ble _08145CAC
ldr r0, =0x0000270f
b _08145CBA
.pool
_08145CAC:
lsls r0, 16
lsrs r1, r0, 16
ldr r0, =0x0000270f
cmp r1, r0
bls _08145CB8
adds r1, r0, 0
_08145CB8:
adds r0, r1, 0
_08145CBA:
bl SetCoins
movs r0, 0x1
_08145CC0:
pop {r4}
pop {r1}
bx r1
.pool
thumb_func_end AddCoins
thumb_func_start SubtractCoins
@ bool8 SubtractCoins(u16 toSub)
SubtractCoins: @ 8145CCC
push {r4,lr}
lsls r0, 16
lsrs r4, r0, 16
bl GetCoins
lsls r0, 16
lsrs r0, 16
cmp r0, r4
bcs _08145CE2
movs r0, 0
b _08145CEE
_08145CE2:
subs r0, r4
lsls r0, 16
lsrs r0, 16
bl SetCoins
movs r0, 0x1
_08145CEE:
pop {r4}
pop {r1}
bx r1
thumb_func_end SubtractCoins
.align 2, 0 @ Don't pad with nop.