From 4f430e9ab56443e822171b7881f4d50475dbaf25 Mon Sep 17 00:00:00 2001 From: Korey Sewell Date: Mon, 10 Apr 2006 12:23:17 -0400 Subject: Finally MIPS does hello world! arch/mips/isa/bitfields.isa: add RS_SRL bitfield ...these must be set to 0 for a SRL instruction arch/mips/isa/decoder.isa: Make unimplemented instructions Fail instead of just Warn Edits to SRA & SRAV instructions Implement CFC1 instructions Unaligned Memory Access Support (Maybe Not fully functional yet) Enforce a more strict decode policy (in terms of different bitfields set to 0 on certain instructions) arch/mips/isa/formats/branch.isa: Fix disassembly arch/mips/isa/formats/int.isa: Add sign extend Immediate and zero extend Immediate to Int class. Probably a bit unnecessary in the long run since these manipulations could be done in the actually instruction instead of keep a int value arch/mips/isa/formats/mem.isa: Comment/Remove out split-memory access code... revisit this after SimpleCPU works arch/mips/isa/formats/unimp.isa: Add inst2string function to Unimplemented panic. PRints out the instruction binary to help in debuggin arch/mips/isa/formats/unknown.isa: define inst2string function , use in unknown disassembly and panic function arch/mips/isa/operands.isa: Make "Mem" default to a unsigned word since this is MIPS32 arch/mips/isa_traits.hh: change return values to 32 instead of 64 arch/mips/linux_process.cc: assign some syscalls to the right functions cpu/static_inst.hh: more debug functions for MIPS (these will be move to the mips directory soon) mem/page_table.cc: mem/page_table.hh: toward a better implementation for unaligned memory access mem/request.hh: NO ALIGN FAULT flag added to support unaligned memory access sim/syscall_emul.cc: additional SyscallVerbose comments --HG-- extra : convert_revision : 1987d80c9f4ede507f1f0148435e0bee97d2428c --- cpu/static_inst.hh | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'cpu') diff --git a/cpu/static_inst.hh b/cpu/static_inst.hh index a200e2849..f0b75c10e 100644 --- a/cpu/static_inst.hh +++ b/cpu/static_inst.hh @@ -397,8 +397,9 @@ class StaticInst : public StaticInstBase int getRs() { return (machInst & 0x03E00000) >> 21; } //25...21 int getRt() { return (machInst & 0x001F0000) >> 16; } //20...16 int getRd() { return (machInst & 0x0000F800) >> 11; } //15...11 - int getOpname(){ return (machInst & 0x0000003F); }//5...0 - int getBranch(){ return (machInst & 0x0000FFFF); }//5...0 + int getImm() { return (machInst & 0x0000FFFF); } //15...0 + int getFunction(){ return (machInst & 0x0000003F); }//5...0 + int getBranch(){ return (machInst & 0x0000FFFF); }//15...0 int getJump(){ return (machInst & 0x03FFFFFF); }//5...0 int getHint(){ return (machInst & 0x000007C0) >> 6; } //10...6 std::string getName() { return mnemonic; } -- cgit v1.2.3