MIPS: Implement MADD.S, MSUB, MADDF and MSUBF.

src/mips/disasm-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // A Disassembler object is used to disassemble a block of code instruction by
 // instruction. The default implementation of the NameConverter object can be
 // overriden to modify register names or to do symbol lookup on addresses.
 //
 // The example below will disassemble a block of code and print it to stdout.
 //
@@ skipping 900 matching lines @@
   return true;
 }
 
 
 void Decoder::DecodeTypeRegisterSRsType(Instruction* instr) {
   if (!DecodeTypeRegisterRsType(instr)) {
     switch (instr->FunctionFieldRaw()) {
       case CVT_D_S:
         Format(instr, "cvt.d.'t 'fd, 'fs");
         break;
+      case MADDF_S:
+        Format(instr, "maddf.s  'fd, 'fs, 'ft");
+        break;
+      case MSUBF_S:
+        Format(instr, "msubf.s  'fd, 'fs, 'ft");
+        break;
       default:
         Format(instr, "unknown.cop1.'t");
         break;
     }
   }
 }
 
 
 void Decoder::DecodeTypeRegisterDRsType(Instruction* instr) {
   if (!DecodeTypeRegisterRsType(instr)) {
-    Format(instr, "unknown.cop1.'t");
+    switch (instr->FunctionFieldRaw()) {
+      case MADDF_D:
+        Format(instr, "maddf.d  'fd, 'fs, 'ft");
+        break;
+      case MSUBF_D:
+        Format(instr, "msubf.d  'fd, 'fs, 'ft");
+        break;
+      default:
+        Format(instr, "unknown.cop1.'t");
+        break;
+    }
   }
 }
 
 
 void Decoder::DecodeTypeRegisterLRsType(Instruction* instr) {
   switch (instr->FunctionFieldRaw()) {
     case CVT_D_L:
       Format(instr, "cvt.d.l 'fd, 'fs");
       break;
     case CVT_S_L:
@@ skipping 411 matching lines @@
           break;
         case PS:
           UNIMPLEMENTED_MIPS();
           break;
         default:
           UNREACHABLE();
       }
       break;
     case COP1X:
       switch (instr->FunctionFieldRaw()) {
+        case MADD_S:
+          Format(instr, "madd.s  'fd, 'fr, 'fs, 'ft");
+          break;
         case MADD_D:
           Format(instr, "madd.d  'fd, 'fr, 'fs, 'ft");
           break;
+        case MSUB_S:
+          Format(instr, "msub.s  'fd, 'fr, 'fs, 'ft");
+          break;
+        case MSUB_D:
+          Format(instr, "msub.d  'fd, 'fr, 'fs, 'ft");
+          break;
         default:
           UNREACHABLE();
       }
       break;
     case SPECIAL:
       DecodeTypeRegisterSPECIAL(instr);
       break;
     case SPECIAL2:
       DecodeTypeRegisterSPECIAL2(instr);
       break;
@@ skipping 409 matching lines @@
                          *reinterpret_cast<int32_t*>(prev_pc), buffer.start());
   }
 }
 
 
 #undef UNSUPPORTED
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_MIPS