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| author | Gabe Black <gblack@eecs.umich.edu> | 2008-06-12 00:58:19 -0400 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2008-06-12 00:58:19 -0400 |
| commit | 31d40ad7c22651eb88271abddacf416aa7c2adf2 (patch) | |
| tree | 6de2fe930f769c4a054b9ec52743caa78c00d6a2 | |
| parent | da20c0ec54d322cbffe3c7d0053ea4dc8be24d94 (diff) | |
| download | gem5-31d40ad7c22651eb88271abddacf416aa7c2adf2.tar.xz | |
X86: Implement and hook up STI and CLI instructions.
| -rw-r--r-- | src/arch/x86/isa/decoder/one_byte_opcodes.isa | 4 | ||||
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/flags/set_and_clear.py | 22 |
2 files changed, 17 insertions, 9 deletions
diff --git a/src/arch/x86/isa/decoder/one_byte_opcodes.isa b/src/arch/x86/isa/decoder/one_byte_opcodes.isa index 8729f417d..005864f02 100644 --- a/src/arch/x86/isa/decoder/one_byte_opcodes.isa +++ b/src/arch/x86/isa/decoder/one_byte_opcodes.isa @@ -553,8 +553,8 @@ 0x1F: decode OPCODE_OP_BOTTOM3 { 0x0: CLC(); 0x1: STC(); - 0x2: WarnUnimpl::cli(); - 0x3: WarnUnimpl::sti(); + 0x2: CLI(); + 0x3: STI(); 0x4: CLD(); 0x5: STD(); //0x6: group4(); diff --git a/src/arch/x86/isa/insts/general_purpose/flags/set_and_clear.py b/src/arch/x86/isa/insts/general_purpose/flags/set_and_clear.py index 4c655e0b2..e151dc61d 100644 --- a/src/arch/x86/isa/insts/general_purpose/flags/set_and_clear.py +++ b/src/arch/x86/isa/insts/general_purpose/flags/set_and_clear.py @@ -1,4 +1,4 @@ -# Copyright (c) 2007 The Hewlett-Packard Development Company +# Copyright (c) 2007-2008 The Hewlett-Packard Development Company # All rights reserved. # # Redistribution and use of this software in source and binary forms, @@ -84,10 +84,18 @@ def macroop CMC { ruflags t1 wruflagsi t1, "CFBit" }; + +def macroop STI { + rflags t1 + limm t2, "IFBit" + or t1, t1, t2 + wrflags t1, t0 +}; + +def macroop CLI { + rflags t1 + limm t2, "~IFBit" + and t1, t1, t2 + wrflags t1, t0 +}; ''' -#let {{ -# class CLI(Inst): -# "GenFault ${new UnimpInstFault}" -# class STI(Inst): -# "GenFault ${new UnimpInstFault}" -#}}; |