program3.c

来自「嵌入式系统基础课件」· C语言 代码 · 共 13 行

#include "libepc.h"

DWORD32 Integer32x32Product(DWORD32 a, DWORD32 b)
	{
	DWORD32 product ;

	product  = (LO(a) * LO(b)) ;
	product += (LO(a) * HI(b)) << 16 ;
	product += (HI(a) * LO(b)) << 16 ;

	return product ;
	}