Use compiler-generated bytecodes for the AVX instruction demos. This
should make it a lot easier for other people (HINT, HINT) to add the
instruction table.
Properly done, all SSE instructions which has the 66/F2/F3 opcode
multiplex need two prefixes: one to control the use of OSP and one to
control the use of REP. However, it's a four-way select: np/66/F2/F3;
so introduce shorthand bytecodes for that purpose.
"make alldeps" doesn't really like it when included files end in *.c.
Instead of renaming insnsb.c to insnsb.h, make it an actual
compilation unit, since there really isn't any reason for it not to
be.
Generate a byte array instead of using C compiler strings for the byte
codes. This has a few advantages:
- No need to special-case zero due to broken C compilers.
- Only insns.pl only ever reads the string, so we can invent our own
syntax.
- Compaction.
- We can give it the proper, unsigned type.
Initial NDISASM support for AVX instructions and VEX prefixes. It
doesn't mean it's correct, but it seems to match my current
understanding. It can disassemble *some*, but not *all*, of the AVX
test cases (which are known to be at least partially incorrect...)
First cut at AVX machinery support. The only instruction implemented
is VPERMIL2PS, and it's probably buggy. I'm checking this in with the
hope that other people can start helping out with (a) testing this,
and (b) adding instructions.
NDISASM support is not there yet.
I received some warnings when running make on the head revision of
nasm from git:
----
rdf2bin.c: In function 'main':
rdf2bin.c:122: warning: comparison between signed and unsigned
rdf2bin.c:123: warning: comparison between signed and unsigned
rdf2bin.c:124: warning: comparison between signed and unsigned
----
I think these warnings are innocuous and should be safely avoidable
with simple casts (please see attached patch).
* rdoff/rdf2bin.c
(main): cast to size_t for comparison with fwrite return value
Signed-off-by: Bo Borgerson <gigabo@gmail.com>
When using temporaries in macros, given them a unique prefix to avoid
namespace collisions when using one macro inside another.
Move the WSAA*() macros from outelf32/outelf64 to a separate header
file.
In the prior code, enabling optimization effectively diabled
critical expression checking, because the optimization passes
took place before checking was enabled.
Add "MOV reg64,imm32" as a special rule, to handle the case of
"mov rax,dword <foo>", where <foo> is sign-extended; this is a 7-byte
form, as opposed to "mov eax,<foo>" (5 bytes) and "mov rax,<foo>" (10
bytes).
At some point, the optimizer needs to be able to handle these.
Add new function "local_scope" to label subsystem to
return the previous non-local label for a given local label,
and invoke this funcion in eval.c to display the fully
qualified name in the "not defined" error message.
