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| author | Christian Krinitsin <mail@krinitsin.com> | 2025-06-20 13:18:11 +0200 |
|---|---|---|
| committer | Theofilos Augoustis <theofilos.augoustis@gmail.com> | 2025-10-09 15:26:04 +0000 |
| commit | a1062578019024e70b51752e29dcd18eb6672a99 (patch) | |
| tree | 2673f5d7ebd5a688a010da5a2bc3f06788ee448e | |
| parent | 13f9661aabe44ea4e4f147c32a344a1db128ab16 (diff) | |
| download | focaccia-miasm-a1062578019024e70b51752e29dcd18eb6672a99.tar.gz focaccia-miasm-a1062578019024e70b51752e29dcd18eb6672a99.zip | |
Add support for BLSI instruction for x86
| -rw-r--r-- | miasm/arch/x86/sem.py | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/miasm/arch/x86/sem.py b/miasm/arch/x86/sem.py index 81e45e7e..fb5ee7d5 100644 --- a/miasm/arch/x86/sem.py +++ b/miasm/arch/x86/sem.py @@ -4368,6 +4368,23 @@ def ucomisd(_, instr, src1, src2): return e, [] +def blsi(_, instr, dst, src): + e = [] + + arg1 = m2_expr.ExprInt(0, src.size) + result = arg1 - src + + e += update_flag_zf(result) + e += update_flag_nf(result) + e.append(m2_expr.ExprAssign(of, m2_expr.ExprInt(0, of.size))) + + if src == 0: + e.append(m2_expr.ExprAssign(cf, m2_expr.ExprInt(0, cf.size))) + else: + e.append(m2_expr.ExprAssign(cf, m2_expr.ExprInt(1, cf.size))) + + e.append(m2_expr.ExprAssign(dst, result)) + return e, [] def pshufb(_, instr, dst, src): e = [] @@ -5499,6 +5516,9 @@ mnemo_func = {'mov': mov, "ucomiss": ucomiss, "ucomisd": ucomisd, + # BMI operations + "blsi": blsi, + # # MMX/AVX/SSE operations |