/* This file contains most common definitions to make MMX stuff easy portable between different kinds of mmx clones Written By Nick Kurshev <nickols_k@mail.ru> */ #ifndef MMXDEFS_INCLUDED #define MMXDEFS_INCLUDED #include "config.h" #undef HAVE_MMX1 #if defined(HAVE_MMX) && !defined(HAVE_MMX2) && !defined(HAVE_3DNOW) && !defined(HAVE_SSE) #define HAVE_MMX1 #endif #undef HAVE_K6_2PLUS #if !defined( HAVE_MMX2 ) && defined( HAVE_3DNOW ) #define HAVE_K6_2PLUS #endif #ifdef HAVE_SSE2 #define MMREG_SIZE 16 #else #define MMREG_SIZE 8 #endif #ifdef HAVE_3DNOW #define PREFETCH "prefetch" #define PREFETCHW "prefetchw" #define PAVGB "pavgusb" #elif defined ( HAVE_MMX2 ) #define PREFETCH "prefetchnta" #define PREFETCHW "prefetcht0" #define PAVGB "pavgb" #else #define PREFETCH "/nop" #define PREFETCHW "/nop" #endif #ifdef HAVE_3DNOW /* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */ #define EMMS "femms" #else #define EMMS "emms" #endif #ifdef HAVE_MMX2 #define MOVNTQ "movntq" #define SFENCE "sfence" #else #define MOVNTQ "movq" #define SFENCE "/nop" #endif #endif