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標(biāo)題: 51單片機(jī)多字節(jié)無(wú)符號(hào)數(shù)乘除法法運(yùn)算C語(yǔ)言源程序 [打印本頁(yè)]

作者: taozi123 時(shí)間: 2018-5-1 22:28
標(biāo)題: 51單片機(jī)多字節(jié)無(wú)符號(hào)數(shù)乘除法法運(yùn)算C語(yǔ)言源程序
乘

#include<reg52.h>
#include<stdio.h>

extern serial_initial();

unsigned long x_at_0x30;
unsigned long y_at_0x40;

main()
{
serial_initial();
x=0X0F012;
y=0X5678;
y=x*y;
printf("y=%1X OR y=%ld\n",y,y);

while(1);
}

-------------------------------------------------

除

#include<reg52.h>
#include<stdio.h>

extern serial_initial();

unsigned long x_at_0x30;
unsigned int y_at_0x40;
unsigned int z_at_0x50;
unsigned int w_at_0x52;

main()
{
serial_initial();
x=0X90000000;
y=0XAFFF;
z=x/y;
w=x%y;
printf("quotient：%X remainder:%X\n",z,w);
printf("quotient：%Ld remainder:%d\n",(long)z,w);

while(1);
}

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