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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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Add general support in the function parser for "integer functions"
(actually implemented as special unary operators, then wrapped in
macros) and implement a family of integer logarithms. The only
difference is the behavior on a non-power-of-two argument:
ilog2[e] -- throw an error
ilog2w -- throw a warning
ilog2f -- round down to power of 2
ilog2c -- round up to power of 2
This is useful for back-converting from masks to bit values.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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reloc_value returns 64bit numbers but we strip it down
to 'int' which causes problems if the former value is
big enough to overflow 'int'. Fix it.
[ BR3104312 ]
Reported-by: Christian Masloch
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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No change on binary level
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
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*To the best of my knowledge*, we now have authorization from everyone
who has significantly contributed to NASM in the past. As such,
change the license to the 2-clause BSD license.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Add copyright headers to the *.c/*.h files in the main directory. For
files where I'm sure enough that we have all the approvals, I have
given them the 2-BSD license, the others have been given the "LGPL for
now" license header. Most of them can probably be changed after
auditing.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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Support __utf16__ and __utf32__ in expression contexts.
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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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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.
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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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"Stealth whitespace" makes it harder to read diffs, and just generally
cause unwanted weirdness. Do a source-wide pass to get rid of it.
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Fix 32-bit types in preproc.c and eval.c that should have been 64-bit
types. This allows %assign to work correctly with 64-bit integers.
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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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Add special operators to allow the use of floating-point constants in
contexts other than DW/DD/DQ/DT/DO.
As part of this checkin, make MAX_KEYWORD generated by tokhash.pl,
since it knows what all the keywords are so it can tell which one is
the longest.
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Replace a sequence of "if" statements with a switch.
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