mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-25 20:30:31 +00:00
36 lines
749 B
C
36 lines
749 B
C
#include <stdio.h>
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
// long long values[5]={0x84,0x80,0,0,0}; // 8
|
|
// long long values[5]={0x80,0xcc,0xcc,0xcc,0xcc}; // .8
|
|
long long values[5]={0x7c,0xf7,0x95,0x54,0xfa}; // .8
|
|
long long exponent,mantissa,sign;
|
|
long long integer;
|
|
double fp=0;
|
|
|
|
exponent=values[0]-0x80;
|
|
|
|
sign=1;
|
|
// below only true if packed */
|
|
// sign=(values[1]&0x80)?-1:1;
|
|
|
|
mantissa=((values[1]|0x80)<<24)|
|
|
(values[2]<<16)|
|
|
(values[3]<<8)|
|
|
(values[4]);
|
|
|
|
integer=mantissa>>(32-exponent);
|
|
if (mantissa==0) {
|
|
printf("DIV BY ZERO\n");
|
|
return 0;
|
|
}
|
|
fp=(double)mantissa/(double)(1ULL<<32);
|
|
|
|
printf("Sign=%lld Mantissa=%llx Exponent=%llx\n",sign,mantissa,exponent);
|
|
printf("Integer=%lld fp=%lf\n",integer,fp);
|
|
|
|
return 0;
|
|
|
|
}
|