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  1. #include <stdio.h>
  2. #include <math.h>
  3. #include <stdint.h>
  4. int main(){
  5.   unsigned char msbyte =0xff;
  6.   unsigned char lsbyte = 0xff;
  7.   uint16_t temp=0;
  8.   int16_t num16=0;
  9.   temp = (msbyte<<8) | lsbyte;
  10.   num16 = (int16_t)(temp & 0x7FFF);
  11.   if(temp & 0x8000) { /* Get sign bit */
  12.     num16 = num16 * -1 - 1;
  13.   }
  14.   printf(" %4x temp %d ", temp,num16);
  15.  
  16.   return 0 ;
  17.  
  18. }
  19.  
Success #stdin #stdout 0s 2008KB
comments (?)
stdin
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Standard input is empty
stdout
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 ffff temp -32768
https://ideone.com/PHaHNO
language:
C99 (gcc 8.3)
created:
10 years ago
visibility:
public

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