File: pymath.c

package info (click to toggle)
python3.14 3.14.0~rc1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 126,824 kB
  • sloc: python: 745,274; ansic: 713,752; xml: 31,250; sh: 5,822; cpp: 4,063; makefile: 1,988; objc: 787; lisp: 502; javascript: 136; asm: 75; csh: 12
file content (19 lines) | stat: -rw-r--r-- 478 bytes parent folder | download | duplicates (4) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
#include "Python.h"


#ifdef HAVE_GCC_ASM_FOR_X87
// Inline assembly for getting and setting the 387 FPU control word on
// GCC/x86.
#ifdef _Py_MEMORY_SANITIZER
__attribute__((no_sanitize_memory))
#endif
unsigned short _Py_get_387controlword(void) {
    unsigned short cw;
    __asm__ __volatile__ ("fnstcw %0" : "=m" (cw));
    return cw;
}

void _Py_set_387controlword(unsigned short cw) {
    __asm__ __volatile__ ("fldcw %0" : : "m" (cw));
}
#endif  // HAVE_GCC_ASM_FOR_X87