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-rw-r--r--src/arch/x86/isa/insts/arithmetic/add_and_subtract.py20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/arch/x86/isa/insts/arithmetic/add_and_subtract.py b/src/arch/x86/isa/insts/arithmetic/add_and_subtract.py
index 05aa6cd69..e637251d2 100644
--- a/src/arch/x86/isa/insts/arithmetic/add_and_subtract.py
+++ b/src/arch/x86/isa/insts/arithmetic/add_and_subtract.py
@@ -277,6 +277,26 @@ def macroop SBB_P_R
sbb t1, t1, reg
st t1, ds, [scale, index, base], disp
};
+
+def macroop NEG_R
+{
+ sub reg, t0, reg, flags=(CF,OF,SF,ZF,AF,PF)
+};
+
+def macroop NEG_M
+{
+ ld t1, ds, [scale, index, base], disp
+ sub t1, t0, t1, flags=(CF,OF,SF,ZF,AF,PF)
+ st t1, ds, [scale, index, base], disp
+};
+
+def macroop NEG_P
+{
+ rdip t7
+ ld t1, ds, [0, t0, t7], disp
+ sub t1, t0, t1, flags=(CF,OF,SF,ZF,AF,PF)
+ st t1, ds, [0, t0, t7], disp
+};
'''
#let {{
# class ADC(Inst):