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Top Document: comp.unix.aix Frequently Asked Questions (Part 4 of 5)
Previous Document: 2.27: Where can I find ldd for AIX?
Next Document: 2.29: How do I access more than 256 Megabytes of memory?
2.28: How do I make my program binary executable on the POWER, POWER2, and POWERPC architecures?
AIX will emulate those instructions not available in POWERPC processors, but you can avoid this emulation and consequent performance degradtation by using only the common to all. If you are using IBM's xlc (cc) compiler, the default is to use the common instruction set. If you want to be explicit, use the -qarch=com option. The option -mcpu=common makes GCC use the common instruction set. Please note that (unlike xlc) this is *not* the default with GCC on AIX.
Top Document: comp.unix.aix Frequently Asked Questions (Part 4 of 5)
Previous Document: 2.27: Where can I find ldd for AIX?
Next Document: 2.29: How do I access more than 256 Megabytes of memory?
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Last Update October 22 2009 @ 05:22 AM