89 lines
3.5 KiB
C
89 lines
3.5 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 │
|
|
│ │
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "tool/build/lib/endian.h"
|
|
#include "tool/build/lib/machine.h"
|
|
|
|
void OpCpuid(struct Machine *m, uint32_t rde) {
|
|
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;
|
|
dx = 'i' | 'n' << 8 | 'e' << 16 | 'C' << 24;
|
|
cx = '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 |= 1 << 30; // rdrnd
|
|
cx |= 0 << 25; // aes
|
|
cx |= 1 << 13; // cmpxchg16b
|
|
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 << 24; // fxsave
|
|
dx |= 1 << 25; // sse
|
|
dx |= 1 << 26; // sse2
|
|
break;
|
|
case 7:
|
|
switch (Read32(m->cx)) {
|
|
case 0:
|
|
bx |= 1 << 0; // fsgsbase
|
|
bx |= 1 << 9; // erms
|
|
bx |= 0 << 18; // rdseed
|
|
cx |= 1 << 22; // rdpid
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
case 0x80000001:
|
|
cx |= 1 << 0; // lahf
|
|
dx |= 1 << 0; // fpu
|
|
dx |= 1 << 8; // cmpxchg8b
|
|
dx |= 1 << 11; // syscall
|
|
dx |= 1 << 15; // cmov
|
|
dx |= 1 << 23; // mmx
|
|
dx |= 1 << 24; // fxsave
|
|
dx |= 1 << 27; // rdtscp
|
|
dx |= 1 << 29; // long
|
|
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);
|
|
}
|