diff -Naurp catalyst-3.0.4.orig/catalyst/arch/mips.py catalyst-3.0.4/catalyst/arch/mips.py
--- catalyst-3.0.4.orig/catalyst/arch/mips.py	2019-02-04 21:58:51.000000000 -0500
+++ catalyst-3.0.4/catalyst/arch/mips.py	2019-03-04 00:09:17.215940131 -0500
@@ -111,30 +111,6 @@ class arch_mips4_multilib(generic_mips64
 		generic_mips64.__init__(self,myspec)
 		self.settings["COMMON_FLAGS"]="-O2 -march=mips4 -mplt -pipe"
 
-class arch_mips4_r10k(generic_mips):
-	"Builder class for MIPS IV R10k [Big-endian]"
-	def __init__(self,myspec):
-		generic_mips.__init__(self,myspec)
-		self.settings["COMMON_FLAGS"]="-O2 -march=r10k -mabi=32 -mplt -pipe"
-
-class arch_mips4_r10k_n32(generic_mips64):
-	"Builder class for MIPS IV R10k [Big-endian N32]"
-	def __init__(self,myspec):
-		generic_mips64.__init__(self,myspec)
-		self.settings["COMMON_FLAGS"]="-O2 -march=r10k -mabi=n32 -mplt -pipe"
-
-class arch_mips4_r10k_n64(generic_mips64):
-	"Builder class for MIPS IV R10k [Big-endian N64]"
-	def __init__(self,myspec):
-		generic_mips64.__init__(self,myspec)
-		self.settings["COMMON_FLAGS"]="-O2 -march=r10k -mabi=64 -pipe"
-
-class arch_mips4_r10k_multilib(generic_mips64):
-	"Builder class for MIPS IV R10k [Big-endian multilib]"
-	def __init__(self,myspec):
-		generic_mips64.__init__(self,myspec)
-		self.settings["COMMON_FLAGS"]="-O2 -march=r10k -mplt -pipe"
-
 class arch_mips4_r12k(generic_mips):
 	"Builder class for MIPS IV R12k/R14k/R16k [Big-endian]"
 	def __init__(self,myspec):
@@ -447,10 +423,6 @@ def register():
 			"mips4_n32"			: arch_mips4_n32,
 			"mips4_n64"			: arch_mips4_n64,
 			"mips4_multilib"		: arch_mips4_multilib,
-			"mips4_r10k"			: arch_mips4_r10k,
-			"mips4_r10k_n32"		: arch_mips4_r10k_n32,
-			"mips4_r10k_n64"		: arch_mips4_r10k_n64,
-			"mips4_r10k_multilib"		: arch_mips4_r10k_multilib,
 			"mips4_r12k"			: arch_mips4_r12k,
 			"mips4_r12k_n32"		: arch_mips4_r12k_n32,
 			"mips4_r12k_n64"		: arch_mips4_r12k_n64,