Re: [MiNT] Re: GCC

[Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>]

stehlik@cas3.zlin.vutbr.cz (Petr Stehlik) writes:

|> On Tue, 23 Feb 1999 19:57:54 +0100 (MEZ), Frank Naumann wrote:
|> 
|> FN>Here are the generated assembler from the latest gcc. I used the
|> FN>following optimizations:
|> FN>
|> FN>/* -Wall -ansi
|> FN> * -O3
|> FN> * -m68020-60
|> 
|> Recently I was compiling the MP3 encoder and decoder. What surprised me
|> a lot was the difference between code optimized with -m68020-40 and that
|> one optimized with -m68020-60. The "-60" was _much_ slower.

The 68060 does not implement 32x32->64 multiplies, thus it must be
emulated.

-- 
Andreas Schwab                                      "And now for something
schwab@issan.cs.uni-dortmund.de                      completely different"
schwab@gnu.org