73 lines
3.2 KiB
C
73 lines
3.2 KiB
C
|
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
|
||
|
|
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
|
||
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
||
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
||
|
|
│ │
|
||
|
|
│ This program is free software; you can redistribute it and/or modify │
|
||
|
|
│ it under the terms of the GNU General Public License as published by │
|
||
|
|
│ the Free Software Foundation; version 2 of the License. │
|
||
|
|
│ │
|
||
|
|
│ This program is distributed in the hope that it will be useful, but │
|
||
|
|
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
|
||
|
|
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
|
||
|
|
│ General Public License for more details. │
|
||
|
|
│ │
|
||
|
|
│ You should have received a copy of the GNU General Public License │
|
||
|
|
│ along with this program; if not, write to the Free Software │
|
||
|
|
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
|
||
|
|
│ 02110-1301 USA │
|
||
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
||
|
|
#include "tool/build/lib/endian.h"
|
||
|
|
#include "tool/build/lib/machine.h"
|
||
|
|
|
||
|
|
void OpCpuid(struct Machine *m) {
|
||
|
|
uint32_t ax, bx, cx, dx;
|
||
|
|
ax = 0;
|
||
|
|
bx = 0;
|
||
|
|
cx = 0;
|
||
|
|
dx = 0;
|
||
|
|
switch (Read32(m->ax)) {
|
||
|
|
case 0:
|
||
|
|
case 0x80000000:
|
||
|
|
ax = 7;
|
||
|
|
bx = 'G' | 'e' << 8 | 'n' << 16 | 'u' << 24;
|
||
|
|
cx = 'i' | 'n' << 8 | 'e' << 16 | 'C' << 24;
|
||
|
|
dx = 'o' | 's' << 8 | 'm' << 16 | 'o' << 24;
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
cx |= 1 << 0; /* sse3 */
|
||
|
|
cx |= 0 << 1; /* pclmulqdq */
|
||
|
|
cx |= 1 << 9; /* ssse3 */
|
||
|
|
cx |= 1 << 23; /* popcnt */
|
||
|
|
cx |= 0 << 30; /* rdrnd */
|
||
|
|
cx |= 0 << 25; /* aes */
|
||
|
|
dx |= 1 << 0; /* fpu */
|
||
|
|
dx |= 1 << 4; /* tsc */
|
||
|
|
dx |= 1 << 6; /* pae */
|
||
|
|
dx |= 1 << 8; /* cmpxchg8b */
|
||
|
|
dx |= 1 << 15; /* cmov */
|
||
|
|
dx |= 1 << 19; /* clflush */
|
||
|
|
dx |= 1 << 23; /* mmx */
|
||
|
|
dx |= 1 << 25; /* sse */
|
||
|
|
dx |= 1 << 26; /* sse2 */
|
||
|
|
break;
|
||
|
|
case 7:
|
||
|
|
bx |= 1 << 9; /* erms */
|
||
|
|
break;
|
||
|
|
case 0x80000001:
|
||
|
|
cx |= 1 << 0; /* lahf/sahf */
|
||
|
|
dx |= 1 << 11; /* syscall */
|
||
|
|
dx |= 1 << 29; /* long mode */
|
||
|
|
break;
|
||
|
|
case 0x80000007:
|
||
|
|
dx |= 1 << 8; /* invtsc */
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
Write64(m->ax, ax);
|
||
|
|
Write64(m->bx, bx);
|
||
|
|
Write64(m->cx, cx);
|
||
|
|
Write64(m->dx, dx);
|
||
|
|
}
|