[Nasm-devel] NASM 2.13 released

[H. P. A. <hp...@zy...>]

Hi all,

I have -- finally -- released NASM 2.13.  This is now the recommended
production version of NASM.

Accordingly, there is now a nasm-2.13.xx maintenance branch, and the
master branch is now once again a development branch.  The development
branch has been tagged 2.14rc0 to indicate that it is logically newer
than the 2.13 maintenance branch.


>  C.1.1 Version 2.13
> 
>        (*) Support the official forms of the `UD0' and `UD1' instructions.
> 
>        (*) Allow self-segment-relative expressions in immediates and
>            displacements, even when combined with an external or otherwise
>            out-of-segment special symbol, e.g.:
> 
>             extern foo 
>             mov eax,[foo - $ + ebx]               ; Now legal
> 
>        (*) Handle a 64-bit origin in NDISASM.
> 
>        (*) NASM can now generate sparse output files for relevant output
>            formats, if the underlying operating system supports them.
> 
>        (*) The `macho' object format now supports the
>            `subsections_via_symbols' and `no_dead_strip' directives, see
>            section 7.8.4.
> 
>        (*) The `macho' object format now supports the `no_dead_strip',
>            `live_support' and `strip_static_syms' section flags, see
>            section 7.8.1.
> 
>        (*) The `macho' object format now supports the `dwarf' debugging
>            format, as required by newer toolchains.
> 
>        (*) All warnings can now be suppressed if desired; warnings not
>            otherwise part of any warning class are now considered its own
>            warning class called `other' (e.g. `-w-other'). Furthermore,
>            warning-as-error can now be controlled on a per warning class
>            basis, using the syntax `-w+error='_warning-class_ and its
>            equivalent for all other warning control options. See section
>            2.1.24 for the command-line options and warning classes and
>            section 6.10 for the `[WARNING]' directive.
> 
>        (*) Fix a number of bugs related to AVX-512 decorators.
> 
>        (*) Significant improvements to building NASM with Microsoft Visual
>            Studio via `Mkfiles/msvc.mak'. It is now possible to build the
>            full Windows installer binary as long as the necessary
>            prerequisites are installed; see `Mkfiles/README'
> 
>        (*) To build NASM with custom modifications (table changes) or from
>            the git tree now requires Perl 5.8 at the very minimum, quite
>            possibly a higher version (Perl 5.24.1 tested.) There is no
>            requirement to have Perl on your system at all if all you want
>            to do is build unmodified NASM from source archives.
> 
>        (*) Fix the `{z}' decorator on AVX-512 `VMOVDQ*' instructions.
> 
>        (*) Add new warnings for certain dangerous constructs which never
>            ought to have been allowed. In particular, the `RESB' family of
>            instructions should have been taking a critical expression all
>            along.
> 
>        (*) Fix the EVEX (AVX-512) versions of the `VPBROADCAST', `VPEXTR',
>            and `VPINSR' instructions.
> 
>        (*) Support contracted forms of additional instructions. As a
>            general rule, if an instruction has a non-destructive source
>            immediately after a destination register that isn't used as an
>            input, NASM supports omitting that source register, using the
>            destination register as that value. This among other things
>            makes it easier to convert SSE code to the equivalent AVX code:
> 
>             addps xmm1,xmm0                       ; SSE instruction 
>             vaddps ymm1,ymm1,ymm0                 ; AVX official long form 
>             vaddps ymm1,ymm0                      ; AVX contracted form
> 
>        (*) Fix Codeview malformed compiler version record.
> 
>        (*) Add the `CLWB' and `PCOMMIT' instructions. Note that the
>            `PCOMMIT' instruction has been deprecated and will never be
>            included in a shipping product; it is included for completeness
>            only.
> 
>        (*) Add the `%pragma' preprocessor directive.
>
>        (*) Add the `RDPID' instruction.
>