1 files changed, 102 insertions, 0 deletions
diff --git a/arm9/asm/OS_cache.s b/arm9/asm/OS_cache.s
new file mode 100644
index 00000000..92d4f90b
--- /dev/null
+++ b/arm9/asm/OS_cache.s
@@ -0,0 +1,102 @@
+    .include "asm/macros.inc"
+    .include "global.inc"
+
+    .text
+
+	arm_func_start DC_InvalidateAll
+DC_InvalidateAll: ; 0x020CC0B8
+	mov r0, #0x0
+	mcr p15, 0x0, r0, c7, c6, 0x0
+	bx lr
+
+	arm_func_start DC_StoreAll
+DC_StoreAll: ; 0x020CC0C4
+	mov r1, #0x0
+_020CC0C8:
+	mov r0, #0x0
+_020CC0CC:
+	orr r2, r1, r0
+	mcr p15, 0x0, r2, c7, c10, 0x2
+	add r0, r0, #0x20
+	cmp r0, #0x400
+	blt _020CC0CC
+	add r1, r1, #0x40000000
+	cmp r1, #0x0
+	bne _020CC0C8
+	bx lr
+
+	arm_func_start DC_FlushAll
+DC_FlushAll: ; 0x020CC0F0
+	mov r12, #0x0
+	mov r1, #0x0
+_020CC0F8:
+	mov r0, #0x0
+_020CC0FC:
+	orr r2, r1, r0
+	mcr p15, 0x0, r12, c7, c10, 0x4
+	mcr p15, 0x0, r2, c7, c14, 0x2
+	add r0, r0, #0x20
+	cmp r0, #0x400
+	blt _020CC0FC
+	add r1, r1, #0x40000000
+	cmp r1, #0x0
+	bne _020CC0F8
+	bx lr
+
+	arm_func_start DC_InvalidateRange
+DC_InvalidateRange: ; 0x020CC124
+	add r1, r1, r0
+	bic r0, r0, #0x1f
+_020CC12C:
+	mcr p15, 0x0, r0, c7, c6, 0x1
+	add r0, r0, #0x20
+	cmp r0, r1
+	blt _020CC12C
+	bx lr
+
+	arm_func_start DC_StoreRange
+DC_StoreRange: ; 0x020CC140
+	add r1, r1, r0
+	bic r0, r0, #0x1f
+_020CC148:
+	mcr p15, 0x0, r0, c7, c10, 0x1
+	add r0, r0, #0x20
+	cmp r0, r1
+	blt _020CC148
+	bx lr
+
+	arm_func_start DC_FlushRange
+DC_FlushRange: ; 0x020CC15C
+	mov r12, #0x0
+	add r1, r1, r0
+	bic r0, r0, #0x1f
+_020CC168:
+	mcr p15, 0x0, r12, c7, c10, 0x4
+	mcr p15, 0x0, r0, c7, c14, 0x1
+	add r0, r0, #0x20
+	cmp r0, r1
+	blt _020CC168
+	bx lr
+
+	arm_func_start DC_WaitWriteBufferEmpty
+DC_WaitWriteBufferEmpty: ; 0x020CC180
+	mov r0, #0x0
+	mcr p15, 0x0, r0, c7, c10, 0x4
+	bx lr
+
+	arm_func_start IC_InvalidateAll
+IC_InvalidateAll: ; 0x020CC18C
+	mov r0, #0x0
+	mcr p15, 0x0, r0, c7, c5, 0x0
+	bx lr
+
+	arm_func_start IC_InvalidateRange
+IC_InvalidateRange:
+	add r1, r1, r0
+	bic r0, r0, #0x1f
+_020CC1A0:
+	mcr p15, 0x0, r0, c7, c5, 0x1
+	add r0, r0, #0x20
+	cmp r0, r1
+	blt _020CC1A0
+	bx lr