.data
;0.52359877 = 30度
fval1 real4 0.52359877

x real4 3.14
power real4 1.1

;3.14^1.1 = 3.5206480575123685712125842405755

.code
SomeFunction proc
	fld fval1
	fsin
	;sin(30度) = 0.5,结果放到st0

	fld fval1
	fcos
	;cos(30度) = 0.86602540378443864676372317075294,结果放到st0

	fld fval1
	fsincos
	;st0 = sin,st1 = cos

;dividend被除数

LabelMyPower:
	;x^power = 2^(y*log2(x))
	;3.14^1.1
	fld power
    fld x
    fyl2x		;fyl2x = y * log2(x) = power * log2(x) = st1 * log2(st0),结果放到st0 = 1.8158411074047422
    fld1
    fld st(1)	;fyl2x的结果
    fprem		;相当于fmod(1.0, fyl2x的结果) = fmod(st0, st1)，得到余数部分，结果放到st0 = 0.81584110740474229
    f2xm1		;2^x - 1,st0[-1.0, +1.0]，操作数值域为[-1.0, +1.0]，所以才有上面的fld1,结果st0 = 0.76032414147020678
    fadd		;st0 = 0.76032414147020678,st1 = 1.0,加上上一指令减去的1.0，结果st0 = 1.7603241414702068
    fscale		;st0 * 2^(st1取整为1, st1 = 1.8158411074047422) = 1.7603241414702068 * 2^1 = 3.5206482829404137
				;st0 = 2^小数次方 * 2^整数次方

    ;fxch st(1)
    ;fstp st
	;st0 = x^power

	ret
SomeFunction endp

end