Source Code

Source code is provided (in the \KEIL\C51\LIB folder) for the following library routines:

Library Routine	Filename	Description
calloc	calloc.c	Allocates memory for an array of elements.
free	free.c	Releases memory allocated with calloc, malloc, or realloc.
_getkey	getkey.c	Waits for a character to be received from the standard 8051 serial port.
init_mempool	init_mem.c	Initializes the memory pool used by the calloc, free, malloc, and realloc routines.
malloc	malloc.c	Allocates a memory block from the memory pool.
putchar	putchar.c	Transmits a character using the standard 8051 serial port.
realloc	realloc.c	Changes the size of a previously allocated memory block.

You may modify these routines and substitute them for the default routines stored in the library.