hi all, how can i realize EXP basic function using floating instructions ? Just another question... to do Y^X ? THX
first you need to express x^y as 2^(y * log2(x)), since fpu can only calc 2^val. Then you must seperate 2^val into integer and fractional exponent: 2^int * 2^fraction. Now you can use fscale and f2xm1.
maybe dvX and dvY must be exchanged. beaster. (not self invented, but disassembled from clib :))
fld dword ptr dvY fld dword ptr dvX fyl2x fld st(0) frndint fsub st(1), st(0) fxch st(1) f2xm1 fld1 faddp st(1), st(0) fscale fstp dword ptr