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  1. #include <stdio.h>
  2. #include <stdint.h>
  3.  
  4. #define SLAVE_TIMEOUT_MS	50
  5. #define MSG_BUF_LEN			80
  6.  
  7. #define make8(v, b) ((b == 0) ? (uint8_t)(v & 0xFF) : (uint8_t)((v >> 8) & 0xFF))
  8.  
  9. int main(void)
  10. {
  11. 	uint16_t timeout_timer;
  12.     uint16_t fstat;
  13.     uint8_t msgbuf[MSG_BUF_LEN];
  14.     uint8_t *mbptr;
  15.     uint16_t fifo[] = { 
  16.     	0x6857, 0x6E65, 0x6920, 0x206E, 0x6874, 0x2065, 0x6F63, 0x7275,
  17.     	0x6573, 0x6F20, 0x2066, 0x7568, 0x616D, 0x206E, 0x7665, 0x6E65,
  18.     	0x7374, 0x202C, 0x7469, 0x6220, 0x6365, 0x6D6F, 0x7365, 0x6E20,
  19.     	0x6365, 0x7365, 0x6173, 0x7972, 0x2E20, 0x2E2E, 0x0000, 0xFFFF
  20.     };
  21.     uint16_t *fptr;
  22.  
  23.     for (timeout_timer = SLAVE_TIMEOUT_MS, mbptr = msgbuf, fptr = fifo; (timeout_timer > 0); )
  24.     {
  25.         fstat = *fptr;
  26.  
  27.         if (fstat != 0xFFFF)
  28.         {
  29.             fstat = *fptr++;
  30.             *mbptr++ = make8(fstat, 0);
  31.             *mbptr   = make8(fstat, 1);
  32.  
  33.             if (*mbptr++ == 0)
  34.                 break;
  35.  
  36.             timeout_timer = SLAVE_TIMEOUT_MS;
  37.         }
  38.     }
  39.  
  40. 	printf("%s\n", msgbuf);
  41. 	printf("msgbuf: %p  mbptr: %p delta = %d strlen = %d\n",
  42. 			msgbuf, mbptr, mbptr - msgbuf, strlen(msgbuf));
  43.  
  44. 	return 0;
  45. }
  46.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
When in the course of human events, it becomes necessary ...
msgbuf: 0x7ffcb463eb30  mbptr: 0x7ffcb463eb6e delta = 62 strlen = 60
https://ideone.com/2FEnEP
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

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