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581c12ce40
Create heap.inc and use that from the assembler code. Rename heap related _h... variables to _heap... Add _heapmaxavail and _heapmemavail functions. git-svn-id: svn://svn.cc65.org/cc65/trunk@1912 b7a2c559-68d2-44c3-8de9-860c34a00d81
44 lines
769 B
C
44 lines
769 B
C
/*
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* _heap.h
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*
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* Ullrich von Bassewitz, 03.06.1998
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*
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*/
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#ifndef __HEAP_H
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#define __HEAP_H
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/* Space needed for administering used blocks */
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#define HEAP_ADMIN_SPACE sizeof (unsigned)
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/* The data type used to implement the free list.
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* Beware: Field order is significant!
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*/
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struct freeblock {
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unsigned size;
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struct freeblock* next;
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struct freeblock* prev;
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};
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/* Variables that describe the heap */
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extern unsigned* _heaporg; /* Bottom of heap */
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extern unsigned* _heapptr; /* Current top */
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extern unsigned* _heapend; /* Upper limit */
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extern struct freeblock* _heapfirst; /* First free block in list */
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extern struct freeblock* _heaplast; /* Last free block in list */
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/* End of _heap.h */
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#endif
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