diff --git a/src/bootloader/bootloader.c b/src/bootloader/bootloader.c
index b5142ce..c9cf555 100644
--- a/src/bootloader/bootloader.c
+++ b/src/bootloader/bootloader.c
@@ -115,14 +115,11 @@ void Jump_to(void *pEntry)
 	__asm
 	(
 		"jr		%[pEntry]\n"				// jump entry
+		"nop\n"
 		:
 		: [pEntry] "r" (pEntry)
 	);
 	__asm
-	(
-		"nop\n"
-	);
-	__asm
 	(
 		".set	reorder\n"
 	);
@@ -137,18 +134,12 @@ void Exec_at(void *pEntry)
 
 	__asm
 	(
-		"mfc0	$26, $12\n"			// change exception vector
-		"li		$27, 0xFFBFFFFF\n"
-		"and	$26, $27\n"
-		"mtc0	$26, $12\n"
-	);
-
-	__asm
-	(
-		"lw		$v0, 16($sp)\n"
+		"mtc0	%[pEntry], $14\n"
 		"nop\n"
-		"jr		$v0\n"				// jump entry
+		"jr		%[pEntry]\n"				// jump entry
 		"rfe\n"
+		:
+		: [pEntry] "r" (pEntry)
 	);
 
 	__asm
@@ -156,6 +147,7 @@ void Exec_at(void *pEntry)
 		".set	reorder\n"
 	);
 }
+
 void PrintCPUinfo(void)
 {
 	int result, rev_id;
diff --git a/src/bootloader/bootloader_with_flash.c b/src/bootloader/bootloader_with_flash.c
index 4f78a61..733cc63 100644
--- a/src/bootloader/bootloader_with_flash.c
+++ b/src/bootloader/bootloader_with_flash.c
@@ -136,14 +136,11 @@ void Jump_to(void *pEntry)
 	__asm
 	(
 		"jr		%[pEntry]\n"				// jump entry
+		"nop\n"
 		:
 		: [pEntry] "r" (pEntry)
 	);
 	__asm
-	(
-		"nop\n"
-	);
-	__asm
 	(
 		".set	reorder\n"
 	);
@@ -158,22 +155,14 @@ void Exec_at(void *pEntry)
 
 	__asm
 	(
-		"li		$26, 0x1000000A\n"
-		"mtc0	$26, $12\n"
-	);
-
-	__asm
-	(
+		"mtc0	%[pEntry], $14\n"
+		"nop\n"
 		"jr		%[pEntry]\n"				// jump entry
+		"rfe\n"
 		:
 		: [pEntry] "r" (pEntry)
 	);
 
-	__asm
-	(
-		"rfe\n"
-	);
-
 	__asm
 	(
 		".set	reorder\n"
@@ -199,16 +188,14 @@ void Exec_RE_at(void *pEntry)
 
 	__asm
 	(
+		"mtc0	%[pEntry], $14\n"
+		"nop\n"
 		"jr		%[pEntry]\n"				// jump entry
+		"rfe\n"
 		:
 		: [pEntry] "r" (pEntry)
 	);
 
-	__asm
-	(
-		"rfe\n"
-	);
-
 	__asm
 	(
 		".set	reorder\n"