diff options
Diffstat (limited to 'miasm2')
| -rw-r--r-- | miasm2/arch/x86/arch.py | 9 | ||||
| -rw-r--r-- | miasm2/arch/x86/sem.py | 29 |
2 files changed, 38 insertions, 0 deletions
diff --git a/miasm2/arch/x86/arch.py b/miasm2/arch/x86/arch.py index 303cad6e..d58ac64b 100644 --- a/miasm2/arch/x86/arch.py +++ b/miasm2/arch/x86/arch.py @@ -4476,6 +4476,15 @@ addop("pmullw", [bs8(0x0f), bs8(0xd5), no_xmm_pref] + rmmod(mm_reg, rm_arg_mm_m64)) addop("pmullw", [bs8(0x0f), bs8(0xd5), pref_66] + rmmod(xmm_reg, rm_arg_xmm_m128)) +addop("pmulhuw", [bs8(0x0f), bs8(0xe4), no_xmm_pref] + + rmmod(mm_reg, rm_arg_mm_m64)) +addop("pmulhuw", [bs8(0x0f), bs8(0xe4), pref_66] + + rmmod(xmm_reg, rm_arg_xmm_m128)) +addop("pmulhw", [bs8(0x0f), bs8(0xe5), no_xmm_pref] + + rmmod(mm_reg, rm_arg_mm_m64)) +addop("pmulhw", [bs8(0x0f), bs8(0xe5), pref_66] + + rmmod(xmm_reg, rm_arg_xmm_m128)) + addop("psubusb", [bs8(0x0f), bs8(0xd8), no_xmm_pref] + rmmod(mm_reg, rm_arg_mm_m64)) diff --git a/miasm2/arch/x86/sem.py b/miasm2/arch/x86/sem.py index adf5820d..ba56c91c 100644 --- a/miasm2/arch/x86/sem.py +++ b/miasm2/arch/x86/sem.py @@ -3392,6 +3392,17 @@ def float_vec_vertical_instr(op, elt_size, apply_on_output=lambda x: x): apply_on_output) +def _keep_mul_high(expr, signed=False): + assert expr.is_op("*") and len(expr.args) == 2 + + if signed: + arg1 = expr.args[0].signExtend(expr.size * 2) + arg2 = expr.args[1].signExtend(expr.size * 2) + else: + arg1 = expr.args[0].zeroExtend(expr.size * 2) + arg2 = expr.args[1].zeroExtend(expr.size * 2) + return m2_expr.ExprOp("*", arg1, arg2)[expr.size:] + # Integer arithmetic # @@ -3421,6 +3432,14 @@ pmullb = vec_vertical_instr('*', 8) pmullw = vec_vertical_instr('*', 16) pmulld = vec_vertical_instr('*', 32) pmullq = vec_vertical_instr('*', 64) +pmulhub = vec_vertical_instr('*', 8, _keep_mul_high) +pmulhuw = vec_vertical_instr('*', 16, _keep_mul_high) +pmulhud = vec_vertical_instr('*', 32, _keep_mul_high) +pmulhuq = vec_vertical_instr('*', 64, _keep_mul_high) +pmulhb = vec_vertical_instr('*', 8, lambda x: _keep_mul_high(x, signed=True)) +pmulhw = vec_vertical_instr('*', 16, lambda x: _keep_mul_high(x, signed=True)) +pmulhd = vec_vertical_instr('*', 32, lambda x: _keep_mul_high(x, signed=True)) +pmulhq = vec_vertical_instr('*', 64, lambda x: _keep_mul_high(x, signed=True)) # Floating-point arithmetic # @@ -4704,11 +4723,21 @@ mnemo_func = {'mov': mov, "psubd": psubd, "psubq": psubq, + # Multiplications # SSE "pmullb": pmullb, "pmullw": pmullw, "pmulld": pmulld, "pmullq": pmullq, + "pmulhub": pmulhub, + "pmulhuw": pmulhuw, + "pmulhud": pmulhud, + "pmulhuq": pmulhuq, + "pmulhb": pmulhb, + "pmulhw": pmulhw, + "pmulhd": pmulhd, + "pmulhq": pmulhq, + # Arithmetic (floating-point) # |