mirror of
https://github.com/n64dev/cen64.git
synced 2025-04-02 10:31:54 -04:00
32 lines
643 B
C
32 lines
643 B
C
//
|
|
// os/unix/x86_64/fpu/fpu_cmp_f_32.h
|
|
//
|
|
// This file is subject to the terms and conditions defined in
|
|
// 'LICENSE', which is part of this source code package.
|
|
//
|
|
|
|
#include <emmintrin.h>
|
|
#include <string.h>
|
|
|
|
static inline uint8_t fpu_cmp_f_32(
|
|
const uint32_t *fs, const uint32_t *ft) {
|
|
float fs_float, ft_float;
|
|
__m128 fs_reg, ft_reg;
|
|
|
|
// Prevent aliasing.
|
|
memcpy(&fs_float, fs, sizeof(fs_float));
|
|
memcpy(&ft_float, ft, sizeof(ft_float));
|
|
|
|
fs_reg = _mm_set_ss(fs_float);
|
|
ft_reg = _mm_set_ss(ft_float);
|
|
|
|
__asm__ __volatile__(
|
|
"comiss %0, %1\n\t"
|
|
:: "x" (fs_reg),
|
|
"x" (ft_reg)
|
|
: "cc"
|
|
);
|
|
|
|
return 0;
|
|
}
|
|
|