The byfill() function

The byfill() function fills a specified area with one character.

Syntax

void byfill(to, length, ch)
   char *to;
   mint length;
   char ch;
to
A pointer to the first byte of the memory area to fill.
length
The number of times to repeat the character within the area.
ch
The character to use to fill the area.
Important: Take care not to overwrite areas of memory adjacent to the area that you want byfill() to fill.