ARM asm
::: well finally i had to, there were nasty c codes and even nasty c++, but after trying everything i had to drop in and see
what really an ARM processor can does. asm asm, here i go!
<br/>
::: until then read some other ARM hacks done by leachbj on <a href="http://ipodlinux.org/blog">ipodlinux</a> (4th gen ipod with
linux). quite nice stuffs, and asm codes like this:
<p/>
static inline INT_32 fixp_mul_32s_nX( INT_32 x, INT_32 y, UNS_8 n ) {<br/> 
	INT_32 res, tmp;<br/>
	__asm__ __volatile__ (<br/>
		"smull	%0, %1, %3, %4				\n\t"<br/>
		"movs	%0, %0, lsr %2				\n\t"<br/>
		"rsb	%2, %2, #32					\n\t"<br/>
		"adc	%1, %0, %1, lsl %2			\n\t"<br/>
		: "=&r" (tmp), "=&r" (res), "+r" (n)<br/>
		: "r" (x), "r" (y)<br/>
	);<br/>
	return res;<br/>
}