From 5e8287d2e2eaf058495442ea9e32fafc343a0b53 Mon Sep 17 00:00:00 2001 From: Nathanael Premillieu Date: Wed, 5 Apr 2017 12:46:06 -0500 Subject: arch, cpu: Architectural Register structural indexing Replace the unified register mapping with a structure associating a class and an index. It is now much easier to know which class of register the index is referring to. Also, when adding a new class there is no need to modify existing ones. Change-Id: I55b3ac80763702aa2cd3ed2cbff0a75ef7620373 Reviewed-by: Andreas Sandberg [ Fix RISCV build issues ] Signed-off-by: Andreas Sandberg Reviewed-on: https://gem5-review.googlesource.com/2700 --- src/arch/alpha/isa/main.isa | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'src/arch/alpha/isa/main.isa') diff --git a/src/arch/alpha/isa/main.isa b/src/arch/alpha/isa/main.isa index a1d0de1d6..e75cec524 100644 --- a/src/arch/alpha/isa/main.isa +++ b/src/arch/alpha/isa/main.isa @@ -220,13 +220,6 @@ output header {{ { protected: - /// Make AlphaISA register dependence tags directly visible in - /// this class and derived classes. Maybe these should really - /// live here and not in the AlphaISA namespace. - enum DependenceTags { - FP_Reg_Base = AlphaISA::FP_Reg_Base - }; - /// Constructor. AlphaStaticInst(const char *mnem, ExtMachInst _machInst, OpClass __opClass) @@ -236,7 +229,7 @@ output header {{ /// Print a register name for disassembly given the unique /// dependence tag number (FP or int). - void printReg(std::ostream &os, int reg) const; + void printReg(std::ostream &os, RegId reg) const; std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const; @@ -251,13 +244,13 @@ output header {{ output decoder {{ void - AlphaStaticInst::printReg(std::ostream &os, int reg) const + AlphaStaticInst::printReg(std::ostream &os, RegId reg) const { - if (reg < FP_Reg_Base) { - ccprintf(os, "r%d", reg); + if (reg.regClass == IntRegClass) { + ccprintf(os, "r%d", reg.regIdx); } else { - ccprintf(os, "f%d", reg - FP_Reg_Base); + ccprintf(os, "f%d", reg.regIdx); } } -- cgit v1.2.3