yasm_parsers - Yasm Supported Parsers (Assembler Syntaxes)
-p parser [-r preproc]
The standard Yasm distribution includes a number of modules for different
parsers (assembler syntaxes).
The parser is selected on the yasm
(1) command line by use of the -p
command line option.
NASM syntax, selected with -p nasm
, is the most full-featured syntax
supported by Yasm. Yasm is nearly 100% compatible with NASM for 16-bit and
32-bit x86 code. Yasm additionally supports 64-bit AMD64 code with Yasm
extensions to the NASM syntax; see yasm_arch
(7) for details. NASM
syntax is the Yasm default.
The GNU Assembler (GAS) is the de-facto cross-platform assembler for modern Unix
systems, and is used as the backend for the GCC compiler. Yasm´s
support for GAS syntax is moderately good, although immature: not all
directives are supported, and only 32-bit x86 and AMD64 architectures are
supported. Nearly all of the GAS preprocessor is also supported. Yasm´s
GAS syntax support is good enough to handle essentially all x86 and AMD64 GCC
compiler output. The GAS parser can be selected with -p gas
Copyright © 2006 Peter Johnson