summaryrefslogtreecommitdiff
path: root/arm9/asm/OS_vramExclusive.s
diff options
context:
space:
mode:
Diffstat (limited to 'arm9/asm/OS_vramExclusive.s')
-rw-r--r--arm9/asm/OS_vramExclusive.s138
1 files changed, 0 insertions, 138 deletions
diff --git a/arm9/asm/OS_vramExclusive.s b/arm9/asm/OS_vramExclusive.s
deleted file mode 100644
index ca2caade..00000000
--- a/arm9/asm/OS_vramExclusive.s
+++ /dev/null
@@ -1,138 +0,0 @@
- .include "asm/macros.inc"
- .include "global.inc"
-
- .section .bss
-
- .global OSi_vramExclusive
-OSi_vramExclusive: ; 0x021D37E4
- .space 0x4
-
- .global OSi_vramLockId
-OSi_vramLockId: ; 0x021D37E8
- .space 0x14
-
- .text
-
- arm_func_start OsCountZeroBits
-OsCountZeroBits: ; 0x020CD5BC
- clz r0, r0
- bx lr
-
- arm_func_start OSi_UnlockVram
-OSi_UnlockVram: ; 0x020CD5C4
- stmdb sp!, {r4-r10,lr}
- mov r5, r0
- mov r10, r1
- bl OS_DisableInterrupts
- ldr r4, _020CD640 ; =OSi_vramExclusive
- ldr r1, _020CD644 ; =0x000001FF
- ldr r2, [r4, #0x0]
- mov r8, r0
- and r0, r5, r2
- and r9, r0, r1
- ldr r6, _020CD648 ; =OSi_vramLockId
- mov r7, #0x1
- mov r5, #0x0
-_020CD5F8:
- mov r0, r9
- bl OsCountZeroBits
- rsbs r2, r0, #0x1f
- bmi _020CD630
- mov r1, r2, lsl #0x1
- ldrh r0, [r6, r1]
- mvn r2, r7, lsl r2
- cmp r10, r0
- ldreq r0, [r4, #0x0]
- and r9, r9, r2
- andeq r0, r0, r2
- streqh r5, [r6, r1]
- streq r0, [r4, #0x0]
- b _020CD5F8
-_020CD630:
- mov r0, r8
- bl OS_RestoreInterrupts
- ldmia sp!, {r4-r10,lr}
- bx lr
- .balign 4
-_020CD640: .word OSi_vramExclusive
-_020CD644: .word 0x000001FF
-_020CD648: .word OSi_vramLockId
-
- arm_func_start OSi_TryLockVram
-OSi_TryLockVram: ; 0x020CD64C
- stmdb sp!, {r4-r9,lr}
- sub sp, sp, #0x4
- mov r6, r0
- mov r8, r1
- bl OS_DisableInterrupts
- ldr r1, _020CD714 ; =OSi_vramExclusive
- mov r7, r0
- ldr r0, [r1, #0x0]
- and r5, r6, r0
- ldr sb, _020CD718 ; =OSi_vramLockId
- mov r4, #0x1
-_020CD678:
- mov r0, r5
- bl OsCountZeroBits
- rsbs r1, r0, #0x1f
- bmi _020CD6B8
- mov r0, r1, lsl #0x1
- ldrh r0, [r9, r0]
- mvn r1, r4, lsl r1
- cmp r8, r0
- and r5, r5, r1
- beq _020CD678
- mov r0, r7
- bl OS_RestoreInterrupts
- add sp, sp, #0x4
- mov r0, #0x0
- ldmia sp!, {r4-r9,lr}
- bx lr
-_020CD6B8:
- ldr r0, _020CD71C ; =0x000001FF
- and r6, r6, r0
- ldr r4, _020CD718 ; =OSi_vramLockId
- ldr sb, _020CD714 ; =OSi_vramExclusive
- mov r5, #0x1
-_020CD6CC:
- mov r0, r6
- bl OsCountZeroBits
- rsbs r1, r0, #0x1f
- bmi _020CD6FC
- ldr r0, [r9, #0x0]
- mvn r2, r5, lsl r1
- orr r0, r0, r5, lsl r1
- mov r1, r1, lsl #0x1
- strh r8, [r4, r1]
- str r0, [r9, #0x0]
- and r6, r6, r2
- b _020CD6CC
-_020CD6FC:
- mov r0, r7
- bl OS_RestoreInterrupts
- mov r0, #0x1
- add sp, sp, #0x4
- ldmia sp!, {r4-r9,lr}
- bx lr
- .balign 4
-_020CD714: .word OSi_vramExclusive
-_020CD718: .word OSi_vramLockId
-_020CD71C: .word 0x000001FF
-
- arm_func_start OSi_InitVramExclusive
-OSi_InitVramExclusive: ; 0x020CD720
- ldr r0, _020CD74C ; =OSi_vramExclusive
- mov r3, #0x0
- str r3, [r0, #0x0]
- ldr r0, _020CD750 ; =OSi_vramLockId
- mov r2, r3
-_020CD734:
- mov r1, r3, lsl #0x1
- add r3, r3, #0x1
- strh r2, [r0, r1]
- cmp r3, #0x9
- blt _020CD734
- bx lr
- .balign 4
-_020CD74C: .word OSi_vramExclusive
-_020CD750: .word OSi_vramLockId