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8. Machine Dependent Features

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.

8.1 Alpha Dependent Features  
8.2 ARC Dependent Features  
8.3 ARM Dependent Features  
8.4 Blackfin Dependent Features  BFIN Dependent Features
8.5 CRIS Dependent Features  
8.6 D10V Dependent Features  
8.7 D30V Dependent Features  
8.8 H8/300 Dependent Features  Renesas H8/300 Dependent Features
8.9 HPPA Dependent Features  
8.10 ESA/390 Dependent Features  IBM ESA/390 Dependent Features
8.11 80386 Dependent Features  Intel 80386 and AMD x86-64 Dependent Features
8.12 Intel i860 Dependent Features  Intel 80860 Dependent Features
8.13 Intel 80960 Dependent Features  
8.14 IA-64 Dependent Features  Intel IA-64 Dependent Features
8.15 IP2K Dependent Features  
8.16 M32C Dependent Features  
8.17 M32R Dependent Features  
8.18 M680x0 Dependent Features  
8.19 M68HC11 and M68HC12 Dependent Features  M68HC11 and 68HC12 Dependent Features
8.20 MIPS Dependent Features  
8.21 MMIX Dependent Features  
8.22 MSP 430 Dependent Features  
8.26 Renesas / SuperH SH Dependent Features  
8.27 SuperH SH64 Dependent Features  
8.23 PDP-11 Dependent Features  
8.24 picoJava Dependent Features  
8.25 PowerPC Dependent Features  
8.28 SPARC Dependent Features  
8.29 TIC54X Dependent Features  TI TMS320C54x Dependent Features
8.33 v850 Dependent Features  V850 Dependent Features
8.34 Xtensa Dependent Features  
8.30 Z80 Dependent Features  
8.31 Z8000 Dependent Features  
8.32 VAX Dependent Features  


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