Ламерский вопро по gcc

Автор: Light Дата: 15.07.2003 13:40 Подскажите плз чем отличается -mcpu от -march?
Re: Ламерский вопро по gcc 15.07.2003 14:12zakon ---
-mcpu=cpu-type
Tune to cpu-type everything applicable about the generated code,
except for the ABI and the set of available instructions. The
choices for cpu-type are i386, i486, i586, i686, pentium, pentium-
mmx, pentiumpro, pentium2, pentium3, pentium4, k6, k6-2, k6-3,
athlon, athlon-tbird, athlon-4, athlon-xp and athlon-mp.

While picking a specific cpu-type will schedule things appropri-
ately for that particular chip, the compiler will not generate any
code that does not run on the i386 without the -march=cpu-type
option being used. i586 is equivalent to pentium and i686 is
equivalent to pentiumpro. k6 and athlon are the AMD chips as
opposed to the Intel ones.

-march=cpu-type
Generate instructions for the machine type cpu-type. The choices
for cpu-type are the same as for -mcpu. Moreover, specifying
-march=cpu-type implies -mcpu=cpu-type.
---
Re: Ламерский вопро по gcc 15.07.2003 14:36Vladimir Dyakov man gcc
Re: Ламерский вопро по gcc 15.07.2003 14:53zakon нужное как раз и брал из man gcc
Re: Ламерский вопро по gcc 15.07.2003 22:01Light Это все понятно, ман по gcc я сам читал неоднократно, но чтото немогу улавить суть различия.
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