diff options
Diffstat (limited to '')
| -rw-r--r-- | miasm/arch/ia32_arch.py | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/miasm/arch/ia32_arch.py b/miasm/arch/ia32_arch.py index 83c7e612..ee0f7ca6 100644 --- a/miasm/arch/ia32_arch.py +++ b/miasm/arch/ia32_arch.py @@ -1784,6 +1784,26 @@ class x86_mn: for a in args: if x86_afs.segm in a: prefix.append(x86_afs.reg_sg.index(a[x86_afs.segm])) + + # special case ommiting 1 as argument + if len(args) == 1 and name in ["sal", "sar", "shl", "shr"]: + args.append("1") + # special case when the first argument should be omitted + if len(args) == 2 and name in ["fcomi", "fcomip", "fucomi", "fucomip"]: + args[0:1] = [] + # special case when the second argument should be omitted + if len(args) == 2 and name in ["fdivp"]: + args[1:2] = [] + # special case when the argument should be omitted + if len(args) == 1 and name in [ + "stosb", "lodsb", "scasb", + "stosd", "lodsd", "scasd", + ]: + args[0:2] = [] + # special case when both arguments should be omitted + if len(args) == 2 and name in [ "movsb", "movsd", "cmpsb", "cmpsd", ]: + args[0:2] = [] + return prefix, name, args @classmethod @@ -1799,10 +1819,6 @@ class x86_mn: log.debug("name: %s"%name) log.debug("args: %s"%str(args)) - # special case ommiting 1 as argument - if len(args) == 1 and name in ["sal", "sar", "shl", "shr"]: - args.append("1") - args_eval = [] for a in args: args_eval.append(x86_mn.parse_address(a)) |