Date: Sat, 6 Apr 1996 12:23:19 -0800 (PST) From: Brian <brian@MediaCity.com> To: freebsd-questions@freebsd.org Subject: latest pgcc and mpeg decoding Message-ID: <199604062023.MAA14567@MediaCity.com>
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I've been fooling around with the pl9 release of pgcc 2.7.2 and have been getting some confusing results. I compiled mpeg_play with -O3 -mpentium and ran it with the -no_display option Processor Frames per second Colors correct Intel 486DX2/66 6.334190 yes AMD 486DX4/133 7.915858 no Intel P90 8.552898 no Now the AMD part, which when I purchased it I asked for a AMD 486/133, says on the chip AMD 5x86/133 P75. And it certainly looks like, in my test, the AMD part would do as well as an Intel P75. However, I thought that pgcc used pentium "specific" instructions and I was expecting core dumps on my 486 machines. Or is it that pgcc uses pentium "optimized" intructions? In either case, why is the AMD part clearly holding its own against the P90 and why do the AMD and Intel P90 share the color buglet? -- Brian Litzinger Powered by FreeBSD <brian@mediacity.com> http[s]://www.mpress.com
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