(as.info)Machine Dependencies


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Machine Dependent Features
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   The machine instruction sets are (almost by definition) different on
each machine where `as' runs.  Floating point representations vary as
well, and `as' often supports a few additional directives or
command-line options for compatibility with other assemblers on a
particular platform.  Finally, some versions of `as' support special
pseudo-instructions for branch optimization.

   This chapter discusses most of these differences, though it does not
include details on any machine's instruction set.  For details on that
subject, see the hardware manufacturer's manual.

* Vax-Dependent
VAX Dependent Features
* AMD29K-Dependent
AMD 29K Dependent Features
* H8/300-Dependent
Hitachi H8/300 Dependent Features
* H8/500-Dependent
Hitachi H8/500 Dependent Features
* HPPA-Dependent
HPPA Dependent Features
* SH-Dependent
Hitachi SH Dependent Features
* i960-Dependent
Intel 80960 Dependent Features
* M68K-Dependent
M680x0 Dependent Features
* Sparc-Dependent
SPARC Dependent Features
* Z8000-Dependent
Z8000 Dependent Features
* MIPS-Dependent
MIPS Dependent Features
* i386-Dependent
80386 Dependent Features

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