mirror of
https://github.com/cc65/cc65.git
synced 2024-11-14 05:05:45 +00:00
53dd513176
which included commits to RCS files with non-trunk default branches. git-svn-id: svn://svn.cc65.org/cc65/trunk@3 b7a2c559-68d2-44c3-8de9-860c34a00d81
44 lines
758 B
C
44 lines
758 B
C
/*
|
|
* _heap.h
|
|
*
|
|
* Ullrich von Bassewitz, 03.06.1998
|
|
*
|
|
*/
|
|
|
|
|
|
|
|
#ifndef __HEAP_H
|
|
#define __HEAP_H
|
|
|
|
|
|
|
|
/* Space needed for administering used blocks */
|
|
#define HEAP_ADMIN_SPACE sizeof (unsigned)
|
|
|
|
/* The data type used to implement the free list.
|
|
* Beware: Field order is significant!
|
|
*/
|
|
struct freeblock {
|
|
unsigned size;
|
|
struct freeblock* next;
|
|
struct freeblock* prev;
|
|
};
|
|
|
|
|
|
|
|
/* Variables that describe the heap */
|
|
extern unsigned* _horg; /* Bottom of heap */
|
|
extern unsigned* _hptr; /* Current top */
|
|
extern unsigned* _hend; /* Upper limit */
|
|
extern struct freeblock* _hfirst; /* First free block in list */
|
|
extern struct freeblock* _hlast; /* Last free block in list */
|
|
|
|
|
|
|
|
/* End of _heap.h */
|
|
|
|
#endif
|
|
|
|
|
|
|