1 files changed, 36 insertions, 0 deletions
diff --git a/arm9/asm/OS_valarm.s b/arm9/asm/OS_valarm.s
new file mode 100644
index 00000000..beb9f29b
--- /dev/null
+++ b/arm9/asm/OS_valarm.s
@@ -0,0 +1,36 @@
+    .include "asm/macros.inc"
+    .include "global.inc"
+
+    .text
+
+	arm_func_start OS_InitVAlarm
+OS_InitVAlarm: ; 0x020CD28C
+	stmdb sp!, {lr}
+	sub sp, sp, #0x4
+	ldr r2, _020CD2EC ; =OSi_UseVAlarm
+	ldrh r0, [r2, #0x0]
+	cmp r0, #0x0
+	addne sp, sp, #0x4
+	ldmneia sp!, {lr}
+	bxne lr
+	ldr r1, _020CD2F0 ; =OSi_VAlarmQueue
+	mov r3, #0x0
+	mov r12, #0x1
+	mov r0, #0x4
+	strh r12, [r2, #0x0]
+	str r3, [r1, #0x0]
+	str r3, [r1, #0x4]
+	bl OS_DisableIrqMask
+	ldr r1, _020CD2F4 ; =OSi_VFrameCount
+	mov r2, #0x0
+	ldr r0, _020CD2F8 ; =OSi_PreviousVCount
+	str r2, [r1, #0x0]
+	str r2, [r0, #0x0]
+	add sp, sp, #0x4
+	ldmia sp!, {lr}
+	bx lr
+	.balign 4
+_020CD2EC: .word OSi_UseVAlarm
+_020CD2F0: .word OSi_VAlarmQueue
+_020CD2F4: .word OSi_VFrameCount
+_020CD2F8: .word OSi_PreviousVCount