1 files changed, 284 insertions, 0 deletions
diff --git a/arm9/asm/OS_spinLock_asm.s b/arm9/asm/OS_spinLock_asm.s
new file mode 100644
index 00000000..dd8ada80
--- /dev/null
+++ b/arm9/asm/OS_spinLock_asm.s
@@ -0,0 +1,284 @@
+    .include "asm/macros.inc"
+    .include "global.inc"
+	.extern isInitialized
+
+    .text
+
+	arm_func_start OS_UnlockCartridge
+OS_UnlockCartridge: ; 0x020CA094
+	ldr r1, _020CA09C ; =OS_UnlockCartridge2
+	bx r1
+	.balign 4
+_020CA09C: .word OS_UnlockCartridge2
+
+	arm_func_start OS_GetLockID
+OS_GetLockID: ; 0x020CA0A0
+	ldr r3, _020CA0F0 ; =0x027FFFB0
+	ldr r1, [r3, #0x0]
+	clz r2, r1
+	cmp r2, #0x20
+	movne r0, #0x40
+	bne _020CA0D4
+	add r3, r3, #0x4
+	ldr r1, [r3, #0x0]
+	clz r2, r1
+	cmp r2, #0x20
+	ldr r0, _020CA0F4 ; =0xFFFFFFFD
+	bxeq lr
+	mov r0, #0x60
+_020CA0D4:
+	add r0, r0, r2
+	mov r1, #0x80000000
+	mov r1, r1, lsr r2
+	ldr r2, [r3, #0x0]
+	bic r2, r2, r1
+	str r2, [r3, #0x0]
+	bx lr
+	.balign 4
+_020CA0F0: .word 0x027FFFB0
+_020CA0F4: .word 0xFFFFFFFD
+
+	arm_func_start OS_ReleaseLockID
+OS_ReleaseLockID: ; 0x020CA0F8
+	ldr r3, _020CA124 ; =0x027FFFB0
+	cmp r0, #0x60
+	addpl r3, r3, #0x4
+	subpl r0, r0, #0x60
+	submi r0, r0, #0x40
+	mov r1, #0x80000000
+	mov r1, r1, lsr r0
+	ldr r2, [r3, #0x0]
+	orr r2, r2, r1
+	str r2, [r3, #0x0]
+	bx lr
+	.balign 4
+_020CA124: .word 0x027FFFB0
+
+	arm_func_start OS_ReadOwnerOfLockWord
+OS_ReadOwnerOfLockWord: ; 0x020CA128
+	ldrh r0, [r0, #0x4]
+	bx lr
+
+	arm_func_start OSi_FreeCardBus
+OSi_FreeCardBus: ; 0x020CA130
+	ldr r1, _020CA144 ; =0x04000204
+	ldrh r0, [r1, #0x0]
+	orr r0, r0, #0x800
+	strh r0, [r1, #0x0]
+	bx lr
+	.balign 4
+_020CA144: .word 0x04000204
+
+	arm_func_start OSi_AllocateCardBus
+OSi_AllocateCardBus: ; 0x020CA148
+	ldr r1, _020CA15C ; =0x04000204
+	ldrh r0, [r1, #0x0]
+	bic r0, r0, #0x800
+	strh r0, [r1, #0x0]
+	bx lr
+	.balign 4
+_020CA15C: .word 0x04000204
+
+	arm_func_start OS_UnlockCard
+OS_UnlockCard: ; 0x020CA160
+	ldr ip, _020CA170 ; =OS_UnlockByWord
+	ldr r1, _020CA174 ; =0x027FFFE0
+	ldr r2, _020CA178 ; =OSi_FreeCardBus
+	bx r12
+	.balign 4
+_020CA170: .word OS_UnlockByWord
+_020CA174: .word 0x027FFFE0
+_020CA178: .word OSi_FreeCardBus
+
+	arm_func_start OS_TryLockCard
+OS_TryLockCard: ; 0x020CA17C
+	ldr ip, _020CA18C ; =OS_TryLockByWord
+	ldr r1, _020CA190 ; =0x027FFFE0
+	ldr r2, _020CA194 ; =OSi_AllocateCardBus
+	bx r12
+	.balign 4
+_020CA18C: .word OS_TryLockByWord
+_020CA190: .word 0x027FFFE0
+_020CA194: .word OSi_AllocateCardBus
+
+	arm_func_start OSi_FreeCartridgeBus
+OSi_FreeCartridgeBus: ; 0x020CA198
+	ldr r1, _020CA1AC ; =0x04000204
+	ldrh r0, [r1, #0x0]
+	orr r0, r0, #0x80
+	strh r0, [r1, #0x0]
+	bx lr
+	.balign 4
+_020CA1AC: .word 0x04000204
+
+	arm_func_start OSi_AllocateCartridgeBus
+OSi_AllocateCartridgeBus: ; 0x020CA1B0
+	ldr r1, _020CA1C4 ; =0x04000204
+	ldrh r0, [r1, #0x0]
+	bic r0, r0, #0x80
+	strh r0, [r1, #0x0]
+	bx lr
+	.balign 4
+_020CA1C4: .word 0x04000204
+
+	arm_func_start OS_TryLockCartridge
+OS_TryLockCartridge: ; 0x020CA1C8
+	ldr ip, _020CA1DC ; =OSi_DoTryLockByWord
+	ldr r1, _020CA1E0 ; =0x027FFFE8
+	ldr r2, _020CA1E4 ; =OSi_AllocateCartridgeBus
+	mov r3, #0x1
+	bx r12
+	.balign 4
+_020CA1DC: .word OSi_DoTryLockByWord
+_020CA1E0: .word 0x027FFFE8
+_020CA1E4: .word OSi_AllocateCartridgeBus
+
+	arm_func_start OS_UnlockCartridge2
+OS_UnlockCartridge2: ; 0x020CA1E8
+	ldr ip, _020CA1FC ; =FUN_020CA2B8
+	ldr r1, _020CA200 ; =0x027FFFE8
+	ldr r2, _020CA204 ; =OSi_FreeCartridgeBus
+	mov r3, #0x1
+	bx r12
+	.balign 4
+_020CA1FC: .word FUN_020CA2B8
+_020CA200: .word 0x027FFFE8
+_020CA204: .word OSi_FreeCartridgeBus
+
+	arm_func_start OS_LockCartridge
+OS_LockCartridge: ; 0x020CA208
+	ldr ip, _020CA21C ; =FUN_020CA358
+	ldr r1, _020CA220 ; =0x027FFFE8
+	ldr r2, _020CA224 ; =OSi_AllocateCartridgeBus
+	mov r3, #0x1
+	bx r12
+	.balign 4
+_020CA21C: .word FUN_020CA358
+_020CA220: .word 0x027FFFE8
+_020CA224: .word OSi_AllocateCartridgeBus
+
+	arm_func_start OSi_DoTryLockByWord
+OSi_DoTryLockByWord:
+	stmdb sp!, {r4-r9,lr}
+	sub sp, sp, #0x4
+	movs r6, r3
+	mov r9, r0
+	mov r8, r1
+	mov r7, r2
+	beq _020CA250
+	bl OS_DisableInterrupts_IrqAndFiq
+	mov r5, r0
+	b _020CA258
+_020CA250:
+	bl OS_DisableInterrupts
+	mov r5, r0
+_020CA258:
+	mov r0, r9
+	mov r1, r8
+	bl MI_SwapWord
+	movs r4, r0
+	bne _020CA27C
+	cmp r7, #0x0
+	beq _020CA278
+	blx r7
+_020CA278:
+	strh r9, [r8, #0x4]
+_020CA27C:
+	cmp r6, #0x0
+	beq _020CA290
+	mov r0, r5
+	bl OS_RestoreInterrupts_IrqAndFiq
+	b _020CA298
+_020CA290:
+	mov r0, r5
+	bl OS_RestoreInterrupts
+_020CA298:
+	mov r0, r4
+	add sp, sp, #0x4
+	ldmia sp!, {r4-r9,lr}
+	bx lr
+
+	arm_func_start OS_UnlockByWord
+OS_UnlockByWord: ; 0x020CA2A8
+	ldr ip, _020CA2B4 ; =FUN_020CA2B8
+	mov r3, #0x0
+	bx r12
+	.balign 4
+_020CA2B4: .word FUN_020CA2B8
+
+	arm_func_start FUN_020CA2B8
+FUN_020CA2B8: ; 0x020CA2B8
+	stmdb sp!, {r4-r7,lr}
+	sub sp, sp, #0x4
+	mov r7, r1
+	ldrh r1, [r7, #0x4]
+	mov r6, r2
+	mov r5, r3
+	cmp r0, r1
+	addne sp, sp, #0x4
+	mvnne r0, #0x1
+	ldmneia sp!, {r4-r7,lr}
+	bxne lr
+	cmp r5, #0x0
+	beq _020CA2F8
+	bl OS_DisableInterrupts_IrqAndFiq
+	mov r4, r0
+	b _020CA300
+_020CA2F8:
+	bl OS_DisableInterrupts
+	mov r4, r0
+_020CA300:
+	mov r0, #0x0
+	strh r0, [r7, #0x4]
+	cmp r6, #0x0
+	beq _020CA314
+	blx r6
+_020CA314:
+	mov r0, #0x0
+	str r0, [r7, #0x0]
+	cmp r5, #0x0
+	beq _020CA330
+	mov r0, r4
+	bl OS_RestoreInterrupts_IrqAndFiq
+	b _020CA338
+_020CA330:
+	mov r0, r4
+	bl OS_RestoreInterrupts
+_020CA338:
+	mov r0, #0x0
+	add sp, sp, #0x4
+	ldmia sp!, {r4-r7,lr}
+	bx lr
+
+	arm_func_start OS_TryLockByWord
+OS_TryLockByWord: ; 0x020CA348
+	ldr ip, _020CA354 ; =FUN_020CA358
+	mov r3, #0x0
+	bx r12
+	.balign 4
+_020CA354: .word FUN_020CA358
+
+	arm_func_start FUN_020CA358
+FUN_020CA358: ; 0x020CA358
+	stmdb sp!, {r4-r8,lr}
+	mov r8, r0
+	mov r7, r1
+	mov r6, r2
+	mov r5, r3
+	bl OSi_DoTryLockByWord
+	cmp r0, #0x0
+	ldmleia sp!, {r4-r8,lr}
+	bxle lr
+	mov r4, #0x400
+_020CA380:
+	mov r0, r4
+	bl SVC_WaitByLoop
+	mov r0, r8
+	mov r1, r7
+	mov r2, r6
+	mov r3, r5
+	bl OSi_DoTryLockByWord
+	cmp r0, #0x0
+	bgt _020CA380
+	ldmia sp!, {r4-r8,lr}
+	bx lr