From 19ad3c4ae46426e988602d870dc2c27fee1154f1 Mon Sep 17 00:00:00 2001 From: Alec Roelke Date: Tue, 7 Nov 2017 12:11:11 -0500 Subject: arch-riscv: Move unknown out of ISA description This patch removes the Unknown instruction type out of the ISA generated code and puts it into arch/riscv/insts. Since there isn't any dynamic behavior to it, all that's left behind is a template for creating a new Unknown instruction. Change-Id: If7c3258a24ecadd3e00ab74586e1740e14f028db Reviewed-on: https://gem5-review.googlesource.com/6023 Reviewed-by: Gabe Black Maintainer: Alec Roelke --- src/arch/riscv/isa/formats/unknown.isa | 41 ---------------------------------- 1 file changed, 41 deletions(-) (limited to 'src/arch/riscv/isa/formats/unknown.isa') diff --git a/src/arch/riscv/isa/formats/unknown.isa b/src/arch/riscv/isa/formats/unknown.isa index b6d76497d..7c2317f98 100644 --- a/src/arch/riscv/isa/formats/unknown.isa +++ b/src/arch/riscv/isa/formats/unknown.isa @@ -34,47 +34,6 @@ // // Unknown instructions // - -output header {{ - /** - * Static instruction class for unknown (illegal) instructions. - * These cause simulator termination if they are executed in a - * non-speculative mode. This is a leaf class. - */ - class Unknown : public RiscvStaticInst - { - public: - /// Constructor - Unknown(MachInst _machInst) - : RiscvStaticInst("unknown", _machInst, No_OpClass) - { - flags[IsNonSpeculative] = true; - } - - Fault execute(ExecContext *, Trace::InstRecord *) const; - - std::string - generateDisassembly(Addr pc, const SymbolTable *symtab) const; - }; -}}; - -output decoder {{ - std::string - Unknown::generateDisassembly(Addr pc, const SymbolTable *symtab) const - { - return csprintf("unknown opcode 0x%02x", OPCODE); - } -}}; - -output exec {{ - Fault - Unknown::execute(ExecContext *xc, Trace::InstRecord *traceData) const - { - Fault fault = std::make_shared(); - return fault; - } -}}; - def format Unknown() {{ decode_block = 'return new Unknown(machInst);\n' }}; -- cgit v1.2.3