Support for FP Paired Single Operations

Auxiliary Functions and Formats for FP in general

arch/mips/isa/decoder.isa:
    ISA Parser doesnt accept operands of different types in one instruction so fix this for unorderedFP functions...
    Add basic support for Paired Singled (PS) FP ops which happen to be part of the MIPS 32-ASE but turned out to
    be included in the MIPS32ISA manual... The PS instructions allow SIMD in a pipeline...
arch/mips/isa/formats/fp.isa:
    Add some more Formats for FP operation. I will add some auxiliary code through these formats
    to alleviate code redundancy in the decoder.isa
arch/mips/isa/operands.isa:
    Add operands for Paired Singles Ops
arch/mips/isa_traits.cc:
    removed convert&round function and replace with fpConvert.
    The whole "rounding mode" stuff is something that should be considered for full-system mode...

    Also added skeletons for the unorderedFP,truncFP,and condition code funcs.
arch/mips/isa_traits.hh:
    declare some Functions
arch/mips/types.hh:
    add new conversion types

--HG--
extra : convert_revision : 79251d590a27b74a3d6a62a2fbb937df3e59963f

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/mips/isa/formats/fp.isa b/arch/mips/isa/formats/fp.isa
index 65b259e20..2ea4d6bf8 100644
--- a/arch/mips/isa/formats/fp.isa
+++ b/arch/mips/isa/formats/fp.isa
@@ -39,6 +39,32 @@ def format FloatOp(code, *flags) {{
         exec_output = BasicExecute.subst(iop)
 }};
 
+def format FloatCompareOp(code, *flags) {{
+        code = 'bool cond;\n' + code
+        iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecode.subst(iop)
+        exec_output = BasicExecute.subst(iop)
+}};
+
+def format FloatCompareWithXcptOp(code, *flags) {{
+        code = 'bool cond;\n' + code
+        iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecode.subst(iop)
+        exec_output = BasicExecute.subst(iop)
+}};
+
+def format FloatConvertOp(code, *flags) {{
+        iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecode.subst(iop)
+        exec_output = BasicExecute.subst(iop)
+}};
+
 // Primary format for float64 operate instructions:
 def format Float64Op(code, *flags) {{
         iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
@@ -47,3 +73,11 @@ def format Float64Op(code, *flags) {{
         decode_block = BasicDecode.subst(iop)
         exec_output = BasicExecute.subst(iop)
 }};
+
+def format Float64ConvertOp(code, *flags) {{
+        iop = InstObjParams(name, Name, 'MipsStaticInst', CodeBlock(code), flags)
+        header_output = BasicDeclare.subst(iop)
+        decoder_output = BasicConstructor.subst(iop)
+        decode_block = BasicDecode.subst(iop)
+        exec_output = BasicExecute.subst(iop)
+}};