Mercurial > hg > cdb
view x86cpuid.c @ 0:2cb46628feec
from cdb-0.75 per http://cr.yp.to/cdb.html,
retrieved 2025-01-03,
contents appear to have been create on 2000-02-19
| author | Henry S. Thompson <ht@inf.ed.ac.uk> |
|---|---|
| date | Wed, 29 Jan 2025 10:50:34 +0000 |
| parents | |
| children | 3bfef1f22a97 |
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#include <signal.h> void nope() { exit(1); } main() { unsigned long x[4]; unsigned long y[4]; int i; int j; char c; signal(SIGILL,nope); x[0] = 0; x[1] = 0; x[2] = 0; x[3] = 0; asm volatile(".byte 15;.byte 162" : "=a"(x[0]),"=b"(x[1]),"=c"(x[3]),"=d"(x[2]) : "0"(0) ); if (!x[0]) return 0; asm volatile(".byte 15;.byte 162" : "=a"(y[0]),"=b"(y[1]),"=c"(y[2]),"=d"(y[3]) : "0"(1) ); for (i = 1;i < 4;++i) for (j = 0;j < 4;++j) { c = x[i] >> (8 * j); if (c < 32) c = 32; if (c > 126) c = 126; putchar(c); } printf("-%08x-%08x\n",y[0],y[3]); return 0; }
