microblaze getchar() not functioning properly

Andrew Bennett Andrew.Bennett@imgtec.com
Wed Aug 24 10:51:00 GMT 2011

> Can you please let me know whether the above change were correct..

I am assuming here that the code you pasted is correct.

If so, the read_macro function will only read and return one byte due to
the if statement being incorrectly bracketed.  If the function is called
with a buffer of more than 1 byte (ie. nbytes > 1) the buffer will only
contain 1 character rather than the number of characters given in

I think the code should read:

int read_micro (int fd, char* buf, int nbytes)
  int i = 0;

  for (i = 0; i < nbytes; i++) {
    *(buf + i) = inbyte();
    if ((*(buf + i) == '\n' || *(buf + i) == '\r'))

  return i;



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