Nasm 2.04

Assembly is een van de oudste programmeertalen, die tegenwoordig vaak wordt gebruikt voor het optimaliseren van toepassingen. Nasm kan assemblycode omzetten naar verschillende binaire objectformaten zoals elf, coff, Mach-O, win32 en win64. De programmeurs hebben enige tijd geleden de ontwikkeling van Nasm weer opgepakt waardoor er inmiddels ondersteuning voor x86-64 en sse3, 4.1, 4.2 en 5 is toegevoegd. Enkele dagen geleden is versie 2.04 van Nasm uitgebracht en voorzien van de volgende lijst met aanpassingen:

Version 2.04:

• Sanitize macro handing in the `%error' directive.
• New `%warning' directive to issue user-controlled warnings
• `%error' directives are now deferred to the final assembly phase.
• New `%fatal' directive to immediately terminate assembly.
• New `%strcat' directive to join quoted strings together.
• New `%use' macro directive to support standard macro directives.
• Excess default parameters to `%macro' now issues a warning by default.
• Fix `%ifn' and `%elifn'.
• Fix nested `%else' clauses.
• Correct the handling of nested `%rep's.
• New `%unmacro' directive to undeclare a multi-line macro.
• Builtin macro `__PASS__' which expands to the current assembly pass.
• `__utf16__' and `__utf32__' operators to generate UTF-16 and UTF-32 strings.
• Fix bug in case-insensitive matching when compiled on platforms that don't use the `configure' script. Of the official release binaries, that only affected the OS/2 binary.
• Support for x87 packed BCD constants.
• Correct the `LTR' and `SLDT' instructions in 64-bit mode.
• Fix unnecessary REX.W prefix on indirect jumps in 64-bit mode.
• Add AVX versions of the AES instructions (`VAES'...).
• Fix the 256-bit FMA instructions.
• Add 256-bit AVX stores per the latest AVX spec.
• VIA XCRYPT instructions can now be written either with or without `REP', apparently different versions of the VIA spec wrote them differently.
• Add missing 64-bit `MOVNTI' instruction.
• Fix the operand size of `VMREAD' and `VMWRITE'.
• Numerous bug fixes, especially to the AES, AVX and VTX instructions.
• The optimizer now always runs until it converges. It also runs even when disabled, but doesn't optimize. This allows most forward references to be resolved properly.