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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.
8.2 AMD 29K Dependent Features 8.1 ARC Dependent Features 8.3 ARM Dependent Features 8.4 D10V Dependent Features 8.5 H8/300 Dependent Features Hitachi H8/300 Dependent Features 8.6 H8/500 Dependent Features Hitachi H8/500 Dependent Features 8.7 HPPA Dependent Features 8.8 80386 Dependent Features Intel 80386 Dependent Features 8.9 Intel 80960 Dependent Features 8.10 M680x0 Dependent Features 8.11 MIPS Dependent Features 8.12 Hitachi SH Dependent Features 8.13 SPARC Dependent Features 8.16 v850 Dependent Features V850 Dependent Features 8.14 Z8000 Dependent Features 8.15 VAX Dependent Features