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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:34 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:34 -0700 |
| commit | 985d959ea64dbfab142c2cb338c88641e2bcfc96 (patch) | |
| tree | 377b54cc3b8b49a4b33f15f37b9eabfb5528abd4 /src/arch/x86/isa | |
| parent | 4f2d4f466ad5f5fcb94d42bcc6e5a7549f1eab17 (diff) | |
| download | gem5-985d959ea64dbfab142c2cb338c88641e2bcfc96.tar.xz | |
X86: Implement a locking version of DEC.
Diffstat (limited to 'src/arch/x86/isa')
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py b/src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py index b85dc6328..184b9da72 100644 --- a/src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py +++ b/src/arch/x86/isa/insts/general_purpose/arithmetic/increment_and_decrement.py @@ -108,4 +108,19 @@ def macroop DEC_P subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF) st t1, seg, riprel, disp }; + +def macroop DEC_LOCKED_M +{ + ldstl t1, seg, sib, disp + subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF) + stul t1, seg, sib, disp +}; + +def macroop DEC_LOCKED_P +{ + rdip t7 + ldstl t1, seg, riprel, disp + subi t1, t1, 1, flags=(OF, SF, ZF, AF, PF) + stul t1, seg, riprel, disp +}; ''' |