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| author | Jin Kyu Song <jin.kyu.song@intel.com> | 2013-12-10 16:24:45 -0800 |
|---|---|---|
| committer | Jin Kyu Song <jin.kyu.song@intel.com> | 2013-12-11 16:56:19 -0800 |
| commit | 4360ba28f0e4767ffe28ef3a037aaa103b5660b6 (patch) | |
| tree | d66cad3a8c786b4291c28879d038caaffd53a897 /nasm.h | |
| parent | 478f2dafff5b58c7c965cfe2277ff71e1492815a (diff) | |
| download | nasm-4360ba28f0e4767ffe28ef3a037aaa103b5660b6.tar.gz | |
mib: Handle MIB EA in a different way from regular EA's
In mib operands, users' intention should be preserved.
e.g.) [eax + eax*1] and [eax*2] must be distinguished and encoded differently.
So a new EA flag EAF_MIB for mib operands is added.
And a new EA hint EAH_SUMMED for the case of [eax+eax*4] being parsed
as [eax*5] is also added.
NOSPLIT specifier does not have an effect in mib, so [nosplit eax + eax*1]
will be encoded as [eax, eax] rather than [eax*2] as in a regular EA.
Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>
Diffstat (limited to 'nasm.h')
| -rw-r--r-- | nasm.h | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -584,13 +584,15 @@ enum ea_flags { /* special EA flags */ EAF_TIMESTWO = 4, /* really do EAX*2 not EAX+EAX */ EAF_REL = 8, /* IP-relative addressing */ EAF_ABS = 16, /* non-IP-relative addressing */ - EAF_FSGS = 32 /* fs/gs segment override present */ + EAF_FSGS = 32, /* fs/gs segment override present */ + EAF_MIB = 64, /* mib operand */ }; enum eval_hint { /* values for `hinttype' */ EAH_NOHINT = 0, /* no hint at all - our discretion */ EAH_MAKEBASE = 1, /* try to make given reg the base */ - EAH_NOTBASE = 2 /* try _not_ to make reg the base */ + EAH_NOTBASE = 2, /* try _not_ to make reg the base */ + EAH_SUMMED = 3, /* base and index are summed into index */ }; typedef struct operand { /* operand to an instruction */ |