[rw]ptr represent the global position and need to be kept in sync with
[rw]pos:[rw]blk at all times. Failed to do that while seeking, with
obviously bad results.
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.
"len" should properly be initialized on every turn of the loop. It
can be initialized to any value >= blk_len that fits in a size_t.
(size_t)~0 would work except for any possible noncompliant C compilers
that have a signed size_t (illegal per C99 7.17.2).
SAA's were never intended to allow random access, but several backends
do random or semirandom access via saa_fread() and saa_fwrite()
anyway. Rewrite the SAA system to allow for efficient random access.
On "label.pl 10000000" this improves performance by a factor of 12.
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.
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.
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.)
Use the same crc64 that we already use for the symbol table hash as
the perfect hash function prehash. We appear to get radically faster
convergence this way, and the crc64 is probably *faster*, since the
table likely to be resident in memory.
0F 18-1F are reserved for hinting NOPs; they all take a single memory
operand which may be sized. Allow the use of systematic names; this
also makes sure they get sensibly disassembled.
Remove bogus "treat labels different from immediates" code, which
would result in generating of a relative mod/rm but without adjusting
the address accordingly.
Update addressing mode test.
To deal with fools^Wpeople trying to keep really old systems alive,
create a proper framework for substitution functions, and make it
possible to deal with the lack of snprintf/vsnprintf in particular.
Add support for daily snapshot releases of the form
<ordinary version number>-<datecode>. These are exported to programs
as the new macro __NASM_SNAPSHOT__ (only present in snapshot releases.)
Add a Makefile for OpenWatcom using WMAKE. This is a horrible version
of Make, but since it's bundled with OpenWatcom it is probably better
to stick to it. It has the nice property that it can produce DOS,
Win32 or OS/2 binaries.
This Makefile currently assumes that it is hosted on a system where
pathname separators are backslashes. For cross-compiling using
OpenWatcom on a Linux system it is probably better to write a separate
Makefile using GNU make to invoke Watcom.
Corrections the section on 64-bit immediates and displacements. In
particular, immediates are sign-extended the same way displacements
are (and the same way 8-bit immediates are), so there is some use for
the 7-byte mov eax,dword imm form :(
