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Fix stray blank line in parser.c
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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OpenWatcom can't handle midcode variable declarations.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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A bracketed memory reference should be followed by a comma or
the end of the line. Enforce this.
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Also be optimistic with immediate forward references.
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WAIT is technically an instruction, but from an assembler standpoint
it behaves as if it had been a prefix. In particular, it has to be
ordered *before* any real hardware prefixes.
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Change the parser to only issue the "TIMES value %d is negative"
error message if all optimization passes have completed.
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Users who wish to control the level of optimization can
continue to specify -O0, -O1, or -Ox,
where x can be the letter itself, or any number > 1.
However, even with optimization turned off,
NASM will always make enough passes to resolve
forward references. As a result, INCBIN is now the only
item left in the critical expressions list, although TIMES
still has its own constant value check.
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Free EOT_DB_STRING_FREE data in cleanup_insn(), which is where we free
all the other extop data.
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Implement __utf16__() and __utf32__() for the DB family of
pseudo-instructions. Not yet implemented for evaluation context.
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Make strings a proper, first-class token type, instead of relying on
the "TOKEN_NUM with tv_charptr" hack. Only convert a string to a
number if requested in an expression context; this also makes it
possible to actually issue a warning when it overflows.
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Allow redefine_label to update segment as well as offset,
thereby fixing bug which required EQU to be on the
critical expression list.
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Output a more legible error message for floating-point with "DY".
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Don't #include .c files, even if they are auto-generated; instead
compile them as separate compilation units and let the linker do its
job.
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Add the DY instruction, YWORD keyword, and an SY marker for
instruction sizes. Add a few more AVX sample instructions.
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Correctly identify SBYTE in the optimizer, *HOWEVER*, this change will
cause nuisance warnings to be issued; that will have to be fixed.
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In the prior code, enabling optimization effectively diabled
critical expression checking, because the optimization passes
took place before checking was enabled.
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Clean up remaining build warnings. None of this should affect code
operations. The only warnings which were actually relevant might have
been the ones in ldrdf.c, but it's not clear if anyone ever uses that.
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Permit opcode names to be used as labels if and only if they are
succeeded by a colon. Opcode names occurring when parsing expressions
are all treated as labels; a leading colon occurred when parsing an
instruction forces a parser restart with the instruction forcibly
treated as an identifier.
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Use a 32-bit limb size ("like a digit, but bigger") for floating-point
conversion. This cuts the number of multiplications per constant by a
factor of four.
This means supporting fractional-limb-sized numbers, so while we're at
it, add support for 8-bit floating point numbers (apparently used in
graphics and in audio compression applications.)
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Remove stealth whitespace
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Revamp the address- and prefix-handling code to make more sense in
64-bit mode. We are now a lot closer to where we want to be, but
we're not quite there yet.
ndisasm may very well have problems, or give counterintuitive output.
However, checking it in so we can make forward progress.
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Both C and C++ have "bool", "true" and "false" in lower case; C
requires <stdbool.h> for this, in C++ it is an inherent type built
into the compiler. Use those instead of the old macros; emulate with
a simple typedef enum if unavailable.
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Change cloc_t to struct location, and reorder the members so that it
should fit in 16 bytes instead of needing 8 bytes of extra padding on
64-bit machines.
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Change loc_t to cloc_t to avoid AIX conflict.
We really shouldn't use _t names at all; they are usually considered
platform types, but worry about that later.
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Concentrate compiler dependencies to compiler.h; make sure compiler.h
is included first in every .c file (since some prototypes may depend
on the presence of feature request macros.)
Actually use the conditional inclusion of various functions (totally
broken in previous releases.)
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Floating-point users generally expect to be able to use a unary plus.
Fix support for the DO instruction in several places.
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SSE5 supports standard IEEE 16-bit floating point, so we should
support that too.
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Implement oword, reso, do, as well as the SO flag to instructions. No
instructions are actually flagged with SO yet, but this allows us to
specify 128-bit sizes in instruction patterns.
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parser.c: change hard-coded argument count 3 to MAX_ARGUMENTS
assemble.c: change a few missed code renumbers
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Support r/m operands for non-integer operands types, i.e. mmx or xmm
operands. This allows mmx and xmm operands to be written more
compactly, speeding up the assembler.
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We have a lot of enumerations; by declaring fields as such, we make it
easier when debugging, since the debugger can display the enumerations
in cleartext. However, make sure exceptional values (like -1) are
included in the enumeration, since the compiler otherwise may not
include it in the valid range of the enumeration.
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Finish the perfect hash tokenizer, and actually enable it.
Move stdscan() et al to a separate file, since it's not needed in any
of the clients of nasmlib other than nasm itself.
Run make alldeps.
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Add the [default {abs|rel}] directive, and clean up directive parsing.
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AMD has (undocumented) segment limits even in 64-bit mode, so people
may want to use cs/ds/es/ss overrides. Since there are no bases, however,
IP-relative still applies.
See:
http://www.amd.com.hk/us-en/assets/content_type/DownloadableAssets/dwamd_kernel_summit_08_RB.pdf
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Implement "REL" and "ABS" modifiers for offsets in 64-bit mode. This
replaces "rip+XXX" type addressing. The infrastructure to set the default
mode is there, but there is nothing to throw the switch just yet.
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a) Automatically generate dependencies for all Makefiles;
b) Move register definitions to a separate .dat file;
c) Add support for "unimplemented but there in theory" registers.
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