#include?
#include
#include?
#define?Bias?15
#define?Max?pow（2?16）
#define?Min?pow（2?-14）

//使用struct存放浮點(diǎn)格式數(shù)據(jù)（以半精度浮點(diǎn)數(shù)為例）?
struct?Float?
{
	int?S;
????int?expo[5];
????int?mant[10];
};

//將輸入的浮點(diǎn)數(shù)轉(zhuǎn)化為浮點(diǎn)格式數(shù)據(jù)?
void?getFloat_num（float?a?struct?Float*?pFl）
{
????float?b?=?a;
????int?expo?=?0;
????int?i?=?0;

????if?（a?????{
????????pFl?->?S?=?1;
????????b?=?-b;
????}
????else
????????pFl?->?S?=?0;
????while?（b?????{
????????b?*=?2;
????????--expo;
????}
????while?（b?>=?2）
????{
????????b?/=?2;
????????++expo;
????}
????i?=?5;
????expo?+=?Bias;
????while?（i?>?0）
????{
????????if?（expo?>?0）?{
????????????pFl?->?expo[i?-?1]?=?expo?%?2;
????????????expo?/=?2;
????????}?else?{
????????????pFl?->?expo[i?-?1]?=?0;
????????}
????????--i;
????}

????i?=?0;
????--b;
????while?（i?????{
????????b?*=?2;
????????if?（b?>=?1）
????????{
????????????--b;
????????????pFl?->?mant[i]?=?1;
????????}?else?{
????????????pFl?->?mant[i]?=?0;
????????}
????????++i;
????}
}

//獲取浮點(diǎn)格式數(shù)據(jù)的指數(shù)?
int?getFloat_exp（struct?Float?f）
{
????int?i?=?0;
????int?ans?=?0;

????while?（i?????{
????????ans?=?ans?*?2?+?f.expo[i];
????????++i;
????}
	ans?-=?Bias;
????return?ans;
}

//獲取浮點(diǎn)格式數(shù)據(jù)的小數(shù)
float?getFloat_fraction（struct?Float?a）
{
????int?i?=?0;
????float?ans?=?1;
????while?（i?????{
????????ans?=?ans?*?2?+?a.mant[i];
????????++i;
????}
????return?ans;
}
//以浮點(diǎn)格式數(shù)據(jù)輸出?
void?printFloat（struct?Float?f）
{
????char?fl[19];
????int??j?=?0?i?=?0;

????fl[0]?=?f.S?+?‘0‘;
????fl[1]?=?‘_‘;
????j?=?2;
????while?（j?????{
????????fl[j]?=?f.expo[j?-?2]?+?‘0‘;
????????++j;
????}
????
	fl[7]?=?‘_‘;???
????i?=?8;
????while?（i?????{
????????fl[i]?=?f.mant[i?-?8]?+?‘0‘;
????????++i;
????}
	fl[18]?=?‘\0‘;
????printf（“%s\n“?fl）;
}

//浮點(diǎn)結(jié)構(gòu)加法
void?F_add（struct?Float?a?struct?Float?b）
{
????struct?Float?answer;
????float?aFrac?bFrac;
????int?aExp?bExp;
????int?i?=?0?j?=?0;
????float?answer_fl;

????aFrac?=?getFloat_fraction（a）;
????bFrac?=?getFloat_fraction（b）;
????aExp?=?getFloat_exp（a）;
????bExp?=?getFloat_exp（b）;

????answer_fl?=?pow（-1?a.S）*aFrac?*?pow（2?aExp?-?10）?+?pow（-1?b.S）*bFrac?*?pow（2?bExp?-?10）;
????if（fabs（answer_fl）>=Max?|?fabs（answer_fl）	{
		printf（“Error!\n“）;
	}
????else
	{
		getFloat_num（answer_fl?&answer）;
		printf（“%f\n“?answer_fl）;
	????printFloat（answer）;
	}
}

//浮點(diǎn)結(jié)構(gòu)減法?
void?F_sub（struct?Float?a?struct?Float?b）
{
????b.S?^=?1;
????F_add（a?b）;
}

//浮點(diǎn)結(jié)構(gòu)乘法?
void?F_mul（struct?Float?a?struct?Float?b）
{
????struct?Float?answer;
????float?aFrac?bFrac;
????int?aExp?bExp?i;
????float?answer_fl;

????aFrac?=?getFloat_fraction（a）;
????bFrac?=?getFloat_fraction（b）;
????aExp?=?getFloat_exp（a）;
????bExp?=?getFloat_exp（b）;

????i?=?0;
????while?（i?????{
????????if?（aExp?>?10）
????????aFrac?*=?2;
????????else?aFrac?/=?2;
??????

?屬性????????????大小?????日期????時(shí)間???名稱(chēng)
-----------?---------??----------?-----??----
?????文件????????5293??2019-03-28?15:13??浮點(diǎn)格式數(shù)據(jù)計(jì)算程序\T1.c
?????文件??????161550??2019-03-28?15:39??浮點(diǎn)格式數(shù)據(jù)計(jì)算程序\T1.exe
?????文件??????777260??2019-03-28?16:04??浮點(diǎn)格式數(shù)據(jù)計(jì)算程序\浮點(diǎn)格式數(shù)據(jù)計(jì)算程序.docx