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| author | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:11 -0700 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2009-04-19 04:56:11 -0700 |
| commit | e742cad6f4363e242e17c516f49edee051340924 (patch) | |
| tree | 5af23a20fc6cb6cf538edae4af563c34f6f86b03 /src/arch | |
| parent | 193265c6e5782a72197e7a568ebb1d4f4ced4bfb (diff) | |
| download | gem5-e742cad6f4363e242e17c516f49edee051340924.tar.xz | |
X86: Implement a locking version of SBB.
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/x86/isa/insts/general_purpose/arithmetic/add_and_subtract.py | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/arithmetic/add_and_subtract.py b/src/arch/x86/isa/insts/general_purpose/arithmetic/add_and_subtract.py index 557811eb7..10c06efb6 100644 --- a/src/arch/x86/isa/insts/general_purpose/arithmetic/add_and_subtract.py +++ b/src/arch/x86/isa/insts/general_purpose/arithmetic/add_and_subtract.py @@ -327,6 +327,23 @@ def macroop SBB_P_I st t1, seg, riprel, disp }; +def macroop SBB_LOCKED_M_I +{ + limm t2, imm + ldstl t1, seg, sib, disp + sbb t1, t1, t2, flags=(OF,SF,ZF,AF,PF,CF) + stul t1, seg, sib, disp +}; + +def macroop SBB_LOCKED_P_I +{ + rdip t7 + limm t2, imm + ldstl t1, seg, riprel, disp + sbb t1, t1, t2, flags=(OF,SF,ZF,AF,PF,CF) + stul t1, seg, riprel, disp +}; + def macroop SBB_M_R { ldst t1, seg, sib, disp @@ -342,6 +359,21 @@ def macroop SBB_P_R st t1, seg, riprel, disp }; +def macroop SBB_LOCKED_M_R +{ + ldstl t1, seg, sib, disp + sbb t1, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + stul t1, seg, sib, disp +}; + +def macroop SBB_LOCKED_P_R +{ + rdip t7 + ldstl t1, seg, riprel, disp + sbb t1, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + stul t1, seg, riprel, disp +}; + def macroop NEG_R { sub reg, t0, reg, flags=(CF,OF,SF,ZF,AF,PF) |