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.include "asm/macros.inc"
.include "global.inc"
.text
arm_func_start OS_FreeToHeap
OS_FreeToHeap: ; 0x020CC6F8
stmdb sp!, {r4-r7,lr}
sub sp, sp, #0x4
mov r7, r0
mov r5, r1
mov r4, r2
bl OS_DisableInterrupts
ldr r1, _020CC768 ; =OSi_HeapInfo
mov r6, r0
ldr r0, [r1, r7, lsl #0x2]
cmp r5, #0x0
ldrlt r5, [r0, #0x0]
ldr r1, [r0, #0x10]
mov r0, #0xc
mla r7, r5, r0, r1
sub r4, r4, #0x20
ldr r0, [r7, #0x8]
mov r1, r4
bl DLExtract
str r0, [r7, #0x8]
ldr r0, [r7, #0x4]
mov r1, r4
bl DLInsert
str r0, [r7, #0x4]
mov r0, r6
bl OS_RestoreInterrupts
add sp, sp, #0x4
ldmia sp!, {r4-r7,lr}
bx lr
.balign 4
_020CC768: .word OSi_HeapInfo
arm_func_start OS_AllocFromHeap
OS_AllocFromHeap: ; 0x020CC76C
stmdb sp!, {r4-r7,lr}
sub sp, sp, #0x4
mov r6, r0
mov r5, r1
mov r7, r2
bl OS_DisableInterrupts
ldr r1, _020CC894 ; =OSi_HeapInfo
mov r4, r0
ldr r1, [r1, r6, lsl #0x2]
cmp r1, #0x0
bne _020CC7AC
bl OS_RestoreInterrupts
add sp, sp, #0x4
mov r0, #0x0
ldmia sp!, {r4-r7,lr}
bx lr
_020CC7AC:
cmp r5, #0x0
ldrlt r5, [r1, #0x0]
ldr r1, [r1, #0x10]
mov r0, #0xc
mla r6, r5, r0, r1
ldr r0, [r6, #0x4]
add r1, r7, #0x20
add r1, r1, #0x1f
mov r5, r0
cmp r0, #0x0
bic r7, r1, #0x1f
beq _020CC7F4
_020CC7DC:
ldr r1, [r5, #0x8]
cmp r7, r1
ble _020CC7F4
ldr r5, [r5, #0x4]
cmp r5, #0x0
bne _020CC7DC
_020CC7F4:
cmp r5, #0x0
bne _020CC814
mov r0, r4
bl OS_RestoreInterrupts
add sp, sp, #0x4
mov r0, #0x0
ldmia sp!, {r4-r7,lr}
bx lr
_020CC814:
ldr r1, [r5, #0x8]
sub r1, r1, r7
cmp r1, #0x40
bhs _020CC834
mov r1, r5
bl DLExtract
str r0, [r6, #0x4]
b _020CC86C
_020CC834:
str r7, [r5, #0x8]
add r2, r5, r7
str r1, [r2, #0x8]
ldr r0, [r5, #0x0]
str r0, [r5, r7]
ldr r0, [r5, #0x4]
str r0, [r2, #0x4]
ldr r0, [r2, #0x4]
cmp r0, #0x0
strne r2, [r0, #0x0]
ldr r0, [r2, #0x0]
cmp r0, #0x0
strne r2, [r0, #0x4]
streq r2, [r6, #0x4]
_020CC86C:
ldr r0, [r6, #0x8]
mov r1, r5
bl DLAddFront
str r0, [r6, #0x8]
mov r0, r4
bl OS_RestoreInterrupts
add r0, r5, #0x20
add sp, sp, #0x4
ldmia sp!, {r4-r7,lr}
bx lr
.balign 4
_020CC894: .word OSi_HeapInfo
arm_func_start DLInsert
DLInsert: ; 0x020CC898
stmdb sp!, {lr}
sub sp, sp, #0x4
mov r12, r0
cmp r0, #0x0
mov lr, #0x0
beq _020CC8C8
_020CC8B0:
cmp r1, r12
bls _020CC8C8
mov lr, r12
ldr r12, [r12, #0x4]
cmp r12, #0x0
bne _020CC8B0
_020CC8C8:
str r12, [r1, #0x4]
str lr, [r1, #0x0]
cmp r12, #0x0
beq _020CC908
str r1, [r12, #0x0]
ldr r3, [r1, #0x8]
add r2, r1, r3
cmp r2, r12
bne _020CC908
ldr r2, [r12, #0x8]
add r2, r3, r2
str r2, [r1, #0x8]
ldr r12, [r12, #0x4]
str r12, [r1, #0x4]
cmp r12, #0x0
strne r1, [r12, #0x0]
_020CC908:
cmp lr, #0x0
beq _020CC950
str r1, [lr, #0x4]
ldr r2, [lr, #0x8]
add r3, lr, r2
cmp r3, r1
addne sp, sp, #0x4
ldmneia sp!, {lr}
bxne lr
ldr r1, [r1, #0x8]
add sp, sp, #0x4
add r1, r2, r1
str r1, [lr, #0x8]
str r12, [lr, #0x4]
cmp r12, #0x0
strne lr, [r12, #0x0]
ldmia sp!, {lr}
bx lr
_020CC950:
mov r0, r1
add sp, sp, #0x4
ldmia sp!, {lr}
bx lr
arm_func_start DLExtract
DLExtract: ; 0x020CC960
ldr r3, [r1, #0x4]
cmp r3, #0x0
ldrne r2, [r1, #0x0]
strne r2, [r3, #0x0]
ldr r2, [r1, #0x0]
cmp r2, #0x0
ldreq r0, [r1, #0x4]
ldrne r1, [r1, #0x4]
strne r1, [r2, #0x4]
bx lr
arm_func_start DLAddFront
DLAddFront: ; 0x020CC988
str r0, [r1, #0x4]
mov r2, #0x0
str r2, [r1, #0x0]
cmp r0, #0x0
strne r1, [r0, #0x0]
mov r0, r1
bx lr
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