mips: map register 9 to 'sp' rather than '29'
diff --git a/arch/Mips/mapping.c b/arch/Mips/mapping.c
index b70509d..5ab2555 100644
--- a/arch/Mips/mapping.c
+++ b/arch/Mips/mapping.c
@@ -73,8 +73,8 @@
 	{ MIPS_REG_27, "27"},
 	//{ MIPS_REG_28, "gp"},
 	{ MIPS_REG_28, "28"},
-	//{ MIPS_REG_29, "sp"},
-	{ MIPS_REG_29, "29"},
+	{ MIPS_REG_29, "sp"},
+	//{ MIPS_REG_29, "29"},
 	//{ MIPS_REG_30, "fp"},
 	{ MIPS_REG_30, "30"},
 	//{ MIPS_REG_31, "ra"},