diff --git a/build/components/hyena.TWL/wram_regs/wram_regs.c b/build/components/hyena.TWL/wram_regs/wram_regs.c
index 3fd8ea2e..0d93fa87 100644
--- a/build/components/hyena.TWL/wram_regs/wram_regs.c
+++ b/build/components/hyena.TWL/wram_regs/wram_regs.c
@@ -38,7 +38,7 @@
 // WRAM-0           Master:ARM9,               (16Kbytes),  Address(7):0x03040000-0x03043fff, Address(9):0x03040000-0x03043fff
 // WRAM-1           Master:ARM9,               (16Kbytes),  Address(7):0x03044000-0x03047fff, Address(9):0x03044000-0x03047fff
 
-u32 REBOOTi_WramRegDS[0x30/sizeof(u32)] =
+u32 HYENA_WramReg[0x30/sizeof(u32)] =
 {
     // ARM9
 
diff --git a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
index 56464cff..570d43e1 100644
--- a/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
+++ b/build/libraries_sysmenu/hotsw/ARM7/src/hotsw.c
@@ -632,6 +632,8 @@ static void ReadRomEmulationData(void)
         }
         count+=4;
 	}
+
+   	MI_CpuCopyFast(s_cbData.romEmuBuf, (void*)HW_ISD_RESERVED, 32);
 }
 
 /* -----------------------------------------------------------------
diff --git a/include/sysmenu/hotsw/common/hotsw.h b/include/sysmenu/hotsw/common/hotsw.h
index b968b9b4..633f466d 100644
--- a/include/sysmenu/hotsw/common/hotsw.h
+++ b/include/sysmenu/hotsw/common/hotsw.h
@@ -11,9 +11,7 @@
 extern "C" {
 #endif
 
-#ifdef SDK_ARM7
 #define SYSM_HOTSW_ENABLE_ROMEMU
-#endif // SDK_ARM7
 
 // Function prototype -------------------------------------------------------
 // 活栓挿抜処理の初期化
@@ -32,7 +30,14 @@ void HOTSW_SetBootSegmentBuffer(void* buf, u32 size);
 void HOTSW_SetSecureSegmentBuffer(void* buf, u32 size);
 
 // Romエミュレーション情報を格納しているバッファのポインタを返す
+#ifdef SDK_ARM7
 void* HOTSW_GetRomEmulationBuffer(void);
+#else // SDK_ARM9
+SDK_INLINE void* HOTSW_GetRomEmulationBuffer(void)
+{
+	return (void*)HW_ISD_RESERVED;
+}
+#endif // SDK_ARM9
 
 #ifdef __cplusplus
 } /* extern "C" */