dquakeplus/source/psp/libpspmath/vfpu_tanf.c

15 lines
358 B
C

#include "pspmath.h"
float vfpu_tanf(float x) {
float result;
// result = sin(x)/cos(x);
__asm__ volatile (
"mtv %1, S000\n"
"vcst.s S001, VFPU_2_PI\n"
"vmul.s S000, S000, S001\n"
"vrot.p C002, S000, [s, c]\n"
"vdiv.s S000, S002, S003\n"
"mfv %0, S000\n"
: "=r"(result) : "r"(x));
return result;
}