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author | Nilay Vaish <nilay@cs.wisc.edu> | 2015-07-26 10:21:20 -0500 |
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committer | Nilay Vaish <nilay@cs.wisc.edu> | 2015-07-26 10:21:20 -0500 |
commit | 608641e23c7f2288810c3f23a1a63790b664f2ab (patch) | |
tree | 0656aaf9653e8d263f5daac0d5f0fe3190193ae5 /src/arch/x86/registers.hh | |
parent | 6e354e82d9395b20f5f148cd545d0666b626e8ac (diff) | |
download | gem5-608641e23c7f2288810c3f23a1a63790b664f2ab.tar.xz |
cpu: implements vector registers
This adds a vector register type. The type is defined as a std::array of a
fixed number of uint64_ts. The isa_parser.py has been modified to parse vector
register operands and generate the required code. Different cpus have vector
register files now.
Diffstat (limited to 'src/arch/x86/registers.hh')
-rw-r--r-- | src/arch/x86/registers.hh | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/arch/x86/registers.hh b/src/arch/x86/registers.hh index ebd88136e..ad40fe17f 100644 --- a/src/arch/x86/registers.hh +++ b/src/arch/x86/registers.hh @@ -57,6 +57,7 @@ const int NumMiscRegs = NUM_MISCREGS; const int NumIntArchRegs = NUM_INTREGS; const int NumIntRegs = NumIntArchRegs + NumMicroIntRegs + NumImplicitIntRegs; const int NumCCRegs = NUM_CCREGS; +const int NumVectorRegs = 0; #define ISA_HAS_CC_REGS @@ -72,7 +73,8 @@ enum DependenceTags { // we just start at (1 << 7) == 128. FP_Reg_Base = 128, CC_Reg_Base = FP_Reg_Base + NumFloatRegs, - Misc_Reg_Base = CC_Reg_Base + NumCCRegs, + Vector_Reg_Base = CC_Reg_Base + NumCCRegs, + Misc_Reg_Base = Vector_Reg_Base + NumVectorRegs, Max_Reg_Index = Misc_Reg_Base + NumMiscRegs }; @@ -91,6 +93,13 @@ const int SyscallPseudoReturnReg = INTREG_RDX; typedef uint64_t IntReg; typedef uint64_t CCReg; + +// vector register file entry type +typedef uint64_t VectorRegElement; +const int NumVectorRegElements = 0; +const int VectorRegBytes = NumVectorRegElements * sizeof(VectorRegElement); +typedef std::array<VectorRegElement, NumVectorRegElements> VectorReg; + //XXX Should this be a 128 bit structure for XMM memory ops? typedef uint64_t LargestRead; typedef uint64_t MiscReg; |