/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-â
âvi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :viâ
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â Copyright 2020 Justine Alexandra Roberts Tunney                              â
â                                                                              â
â Permission to use, copy, modify, and/or distribute this software for         â
â any purpose with or without fee is hereby granted, provided that the         â
â above copyright notice and this permission notice appear in all copies.      â
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â THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL                â
â WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED                â
â WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE             â
â AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL         â
â DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR        â
â PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER               â
â TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR             â
â PERFORMANCE OF THIS SOFTWARE.                                                â
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#include "libc/mem/bisect.internal.h"
#include "libc/nexgen32e/x86info.h"

static int CmpX86ProcModelKey(const struct X86ProcessorModel *a,
                              const struct X86ProcessorModel *b) {
  return a->key > b->key ? 1 : a->key < b->key ? -1 : 0;
}

/**
 * Identifies microarchitecture of host processor.
 *
 * @param key can be kX86ProcessorModelKey for host info
 * @see https://en.wikichip.org/wiki/intel/cpuid
 * @see https://a4lg.com/tech/x86/database/x86-families-and-models.en.html
 */
const struct X86ProcessorModel *getx86processormodel(short key) {
  return bisect(&(struct X86ProcessorModel){key}, kX86ProcessorModels,
                kX86ProcessorModelCount, sizeof(struct X86ProcessorModel),
                (void *)CmpX86ProcModelKey, NULL);
}
