diff --git a/disassembler/disassembler_mips.cc b/disassembler/disassembler_mips.cc
index 3d8a567..b27b555 100644
--- a/disassembler/disassembler_mips.cc
+++ b/disassembler/disassembler_mips.cc
@@ -71,10 +71,14 @@
   { kRTypeMask, 17, "mthi", "S", },
   { kRTypeMask, 18, "mflo", "D", },
   { kRTypeMask, 19, "mtlo", "S", },
-  { kRTypeMask, 24, "mult", "ST", },
-  { kRTypeMask, 25, "multu", "ST", },
-  { kRTypeMask, 26, "div", "ST", },
-  { kRTypeMask, 27, "divu", "ST", },
+  { kRTypeMask | (0x1f << 6), 24, "mult", "ST", },
+  { kRTypeMask | (0x1f << 6), 25, "multu", "ST", },
+  { kRTypeMask | (0x1f << 6), 26, "div", "ST", },
+  { kRTypeMask | (0x1f << 6), 27, "divu", "ST", },
+  { kRTypeMask | (0x1f << 6), 24 + (2 << 6), "mul", "DST", },
+  { kRTypeMask | (0x1f << 6), 24 + (3 << 6), "muh", "DST", },
+  { kRTypeMask | (0x1f << 6), 26 + (2 << 6), "div", "DST", },
+  { kRTypeMask | (0x1f << 6), 26 + (3 << 6), "mod", "DST", },
   { kRTypeMask, 32, "add", "DST", },
   { kRTypeMask, 33, "addu", "DST", },
   { kRTypeMask, 34, "sub", "DST", },