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author | Gabe Black <gblack@eecs.umich.edu> | 2009-01-25 20:33:27 -0800 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2009-01-25 20:33:27 -0800 |
commit | 52defeb4e76e7f426c91eb0d0e5e2222d2ab387e (patch) | |
tree | 999bd7e7f6e33f162e427f273e471e3e1e3c20ef /src/arch/x86/isa/insts/general_purpose | |
parent | 3c5988b86c9fcb06927a8e12095e278b55593911 (diff) | |
download | gem5-52defeb4e76e7f426c91eb0d0e5e2222d2ab387e.tar.xz |
X86: Implement the xadd instruction.
Diffstat (limited to 'src/arch/x86/isa/insts/general_purpose')
-rw-r--r-- | src/arch/x86/isa/insts/general_purpose/semaphores.py | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/src/arch/x86/isa/insts/general_purpose/semaphores.py b/src/arch/x86/isa/insts/general_purpose/semaphores.py index da16477fc..f23241863 100644 --- a/src/arch/x86/isa/insts/general_purpose/semaphores.py +++ b/src/arch/x86/isa/insts/general_purpose/semaphores.py @@ -78,10 +78,30 @@ def macroop CMPXCHG_P_R { st t1, seg, riprel, disp mov rax, rax, t1, flags=(nCZF,) }; + +def macroop XADD_M_R { + ldst t1, seg, sib, disp + add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + st t2, seg, sib, disp + mov reg, reg, t1 +}; + +def macroop XADD_P_R { + rdip t7 + ldst t1, seg, riprel, disp + add t2, t1, reg, flags=(OF,SF,ZF,AF,PF,CF) + st t2, seg, riprel, disp + mov reg, reg, t1 +}; + +def macroop XADD_R_R { + add t2, regm, reg, flags=(OF,SF,ZF,AF,PF,CF) + mov regm, regm, reg + mov reg, reg, t2 +}; + ''' #let {{ -# class XADD(Inst): -# "GenFault ${new UnimpInstFault}" # class XCHG(Inst): # "GenFault ${new UnimpInstFault}" #}}; |