ref: 9c44ce9f4bef9f3f4f7201d60c3f1b61b62256ae
dir: /vpx_ports/x86_cpuid.c/
/* * Copyright (c) 2010 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include <string.h> #include "x86.h" struct cpuid_vendors { char vendor_string[12]; vpx_cpu_t vendor_id; }; static struct cpuid_vendors cpuid_vendor_list[VPX_CPU_LAST] = { { "AuthenticAMD", VPX_CPU_AMD }, { "AMDisbetter!", VPX_CPU_AMD_OLD }, { "CentaurHauls", VPX_CPU_CENTAUR }, { "CyrixInstead", VPX_CPU_CYRIX }, { "GenuineIntel", VPX_CPU_INTEL }, { "NexGenDriven", VPX_CPU_NEXGEN }, { "Geode by NSC", VPX_CPU_NSC }, { "RiseRiseRise", VPX_CPU_RISE }, { "SiS SiS SiS ", VPX_CPU_SIS }, { "GenuineTMx86", VPX_CPU_TRANSMETA }, { "TransmetaCPU", VPX_CPU_TRANSMETA_OLD }, { "UMC UMC UMC ", VPX_CPU_UMC }, { "VIA VIA VIA ", VPX_CPU_VIA }, }; vpx_cpu_t vpx_x86_vendor(void) { unsigned int reg_eax; unsigned int vs[3]; int i; /* Get the Vendor String from the CPU */ cpuid(0, reg_eax, vs[0], vs[2], vs[1]); for (i = 0; i < VPX_CPU_LAST; i++) { if (strncmp((const char *)vs, cpuid_vendor_list[i].vendor_string, 12) == 0) return (cpuid_vendor_list[i].vendor_id); } return VPX_CPU_UNKNOWN; }