1 files changed, 118 insertions, 0 deletions
diff --git a/arm9/asm/OS_interrupt_asm.s b/arm9/asm/OS_interrupt_asm.s
new file mode 100644
index 00000000..ea17cf8d
--- /dev/null
+++ b/arm9/asm/OS_interrupt_asm.s
@@ -0,0 +1,118 @@
+	.include "asm/macros.inc"
+	.include "global.inc"
+
+	.text
+
+	arm_func_start OS_SetIrqStackChecker
+OS_SetIrqStackChecker: ; 0x020C9DAC
+	ldr ip, _020C9DD0 ; =0x027E0000
+	ldr r3, _020C9DD4 ; =0xFDDB597D
+	add r0, r12, #0x3000
+	ldr r2, _020C9DD8 ; =0x7BF9DD5B
+	ldr r1, _020C9DDC ; =0x00000400
+	str r3, [r0, #0xf7c]
+	add r0, r12, #0x3f80
+	str r2, [r0, -r1]
+	bx lr
+	.balign 4
+_020C9DD0: .word 0x027E0000
+_020C9DD4: .word 0xFDDB597D
+_020C9DD8: .word 0x7BF9DD5B
+_020C9DDC: .word 0x00000400
+
+	arm_func_start OS_ResetRequestIrqMask
+OS_ResetRequestIrqMask: ; 0x020C9DE0
+	ldr ip, _020C9E0C ; =0x04000208
+	mov r1, #0x0
+	ldrh r3, [r12, #0x0]
+	ldr r2, _020C9E10 ; =0x04000214
+	strh r1, [r12, #0x0]
+	ldr r1, [r2, #0x0]
+	str r0, [r2, #0x0]
+	ldrh r0, [r12, #0x0]
+	mov r0, r1
+	strh r3, [r12, #0x0]
+	bx lr
+	.balign 4
+_020C9E0C: .word 0x04000208
+_020C9E10: .word 0x04000214
+
+	arm_func_start OS_DisableIrqMask
+OS_DisableIrqMask: ; 0x020C9E14
+	stmdb sp!, {lr}
+	sub sp, sp, #0x4
+	ldr lr, _020C9E54 ; =0x04000208
+	mov r3, #0x0
+	ldrh r12, [lr, #0x0]
+	ldr r2, _020C9E58 ; =0x04000210
+	mvn r1, r0
+	strh r3, [lr, #0x0]
+	ldr r0, [r2, #0x0]
+	and r1, r0, r1
+	str r1, [r2, #0x0]
+	ldrh r1, [lr, #0x0]
+	strh r12, [lr, #0x0]
+	add sp, sp, #0x4
+	ldmia sp!, {lr}
+	bx lr
+	.balign 4
+_020C9E54: .word 0x04000208
+_020C9E58: .word 0x04000210
+
+	arm_func_start OS_EnableIrqMask
+OS_EnableIrqMask: ; 0x020C9E5C
+	ldr ip, _020C9E8C ; =0x04000208
+	mov r1, #0x0
+	ldrh r3, [r12, #0x0]
+	ldr r2, _020C9E90 ; =0x04000210
+	strh r1, [r12, #0x0]
+	ldr r1, [r2, #0x0]
+	orr r0, r1, r0
+	str r0, [r2, #0x0]
+	ldrh r0, [r12, #0x0]
+	mov r0, r1
+	strh r3, [r12, #0x0]
+	bx lr
+	.balign 4
+_020C9E8C: .word 0x04000208
+_020C9E90: .word 0x04000210
+
+	arm_func_start OS_SetIrqMask
+OS_SetIrqMask: ; 0x020C9E94
+	ldr ip, _020C9EC0 ; =0x04000208
+	mov r1, #0x0
+	ldrh r3, [r12, #0x0]
+	ldr r2, _020C9EC4 ; =0x04000210
+	strh r1, [r12, #0x0]
+	ldr r1, [r2, #0x0]
+	str r0, [r2, #0x0]
+	ldrh r0, [r12, #0x0]
+	mov r0, r1
+	strh r3, [r12, #0x0]
+	bx lr
+	.balign 4
+_020C9EC0: .word 0x04000208
+_020C9EC4: .word 0x04000210
+
+	arm_func_start OSi_EnterTimerCallback
+OSi_EnterTimerCallback: ; 0x020C9EC8
+	stmdb sp!, {r4,lr}
+	mov r3, #0xc
+	mul r4, r0, r3
+	ldr ip, _020C9F08 ; =0x021D344C
+	add r0, r0, #0x3
+	mov r3, #0x1
+	mov r0, r3, lsl r0
+	ldr r3, _020C9F0C ; =0x021D3454
+	str r1, [r12, r4]
+	str r2, [r3, r4]
+	bl OS_EnableIrqMask
+	ldr r0, _020C9F10 ; =0x021D3450
+	mov r1, #0x1
+	str r1, [r0, r4]
+	ldmia sp!, {r4,lr}
+	bx lr
+	.balign 4
+_020C9F08: .word OSi_IrqCallbackInfo+0x30
+_020C9F0C: .word OSi_IrqCallbackInfo+0x38
+_020C9F10: .word OSi_IrqCallbackInfo+0x34