all your base are belong to us
                                        xor eax, eax
	 				mov esi, offset drive
	 				mov ecx, 4
	 				mov edi, esi
@loop:				        lodsb
					cmp al, 0
					jne @F
					ror eax, 8
					jmp @pack
@@:					and al, 0fh
					cmp al, 0
					jl @err
					cmp al, 0eh
					je @loop
					cmp al, 9
					jg @err
					cmp ecx, 1
					je @F
					shl eax, 8
@@:					loop @loop
@pack:				        rol eax, 16
					rol al, 4
					ror ax, 4
					rol eax, 16
					rol al, 4
					rol ax, 4
					ror eax, 8
					mov word ptr [buffer+7], ax
					mov eax, 17d
					sub eax, ecx
					xor ecx, ecx
					sub ecx, eax
					push ecx
					fbld buffer
					fild dword ptr [esp]
					pop ecx
					fldl2t
					fmulp st(1), st
					fld st
					frndint
					fsub st(1),st
					fxch st(1)
					f2xm1
					fld1
					faddp st(1),st
					fscale
					fstp st(1)
					fmulp st(1), st