OS_tcm.c

arm9/asm/OS_tcm.s

@@ -1,13 +0,0 @@
-    .include "asm/macros.inc"
-    .include "global.inc"
-
-    .text
-
-	arm_func_start OS_GetDTCMAddress
-OS_GetDTCMAddress: ; 0x020CC9A4
-	mrc p15, 0x0, r0, c9, c1, 0x0
-	ldr r1, _020CC9B4 ; =0xFFFFF000
-	and r0, r0, r1
-	bx lr
-	.balign 4
-_020CC9B4: .word 0xFFFFF000

arm9/lib/include/OS_init.h

@@ -7,6 +7,7 @@
 
 #include "types.h"
 #include "consts.h"
+#include "OS_tcm.h"
 #include "OS_spinLock.h"
 #include "OS_thread.h"
 #include "OS_protectionRegion.h"

arm9/lib/include/OS_tcm.h

@@ -0,0 +1,12 @@
+//
+// Created by red031000 on 2020-05-05.
+//
+
+#ifndef POKEDIAMOND_OS_TCM_H
+#define POKEDIAMOND_OS_TCM_H
+
+#include "consts.h"
+
+u32 OS_GetDTCMAddress();
+
+#endif //POKEDIAMOND_OS_TCM_H

arm9/lib/include/consts.h

@@ -55,6 +55,8 @@
 #define OS_CONSOLE_SIZE_MASK       0x00000003
 #define OS_CONSOLE_SIZE_4MB        0x00000001
 
+#define OSi_TCM_REGION_BASE_MASK   0xfffff000
+
 #define OSi_GetArenaInfo()         (*(OSArenaInfo*)HW_ARENA_INFO_BUF)
 #define OSi_TRUNC(n, a)            (((u32) (n)) & ~((a) - 1))
 #define OSi_ROUND(n, a)            (((u32) (n) + (a) - 1) & ~((a) - 1))

arm9/lib/src/OS_tcm.c

@@ -0,0 +1,13 @@
+//
+// Created by red031000 on 2020-05-05.
+//
+
+#include "OS_tcm.h"
+#include "function_target.h"
+
+ARM_FUNC asm u32 OS_GetDTCMAddress() {
+    mrc p15, 0x0, r0, c9, c1, 0x0
+    ldr r1, =OSi_TCM_REGION_BASE_MASK
+    and r0, r0, r1
+    bx lr
+}