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- /* Copyright (c) 1990 Commodore-Amiga, Inc.
- *
- * This example is provided in electronic form by Commodore-Amiga, Inc. for
- * use with the 1.3 revisions of the Addison-Wesley Amiga reference manuals.
- * The 1.3 Addison-Wesley Amiga Reference Manual series contains additional
- * information on the correct usage of the techniques and operating system
- * functions presented in this example. The source and executable code of
- * this example may only be distributed in free electronic form, via bulletin
- * board or as part of a fully non-commercial and freely redistributable
- * diskette. Both the source and executable code (including comments) must
- * be included, without modification, in any copy. This example may not be
- * published in printed form or distributed with any commercial product.
- * However, the programming techniques and support routines set forth in
- * this example may be used in the development of original executable
- * software products for Commodore Amiga computers.
- * All other rights reserved.
- * This example is provided "as-is" and is subject to change; no warranties
- * are made. All use is at your own risk. No liability or responsibility
- * is assumed.
- */
-
- /* Compiled with Lattice 5.04: LC -b1 -cfist -v -y
- * Linkage: blink from lib:c.o+allocate.o to Allocate lib lib:lc.lib lib:amiga.lib
- */
-
- #include <exec/types.h>
- #include <exec/memory.h>
-
- #ifdef LATTICE
- #include <proto/all.h>
- #include <stdio.h>
- #include <stdlib.h>
- #endif
-
- #define BLOCKSIZE 4000 /* or whatever you want */
- VOID main(VOID);
-
- VOID main(VOID)
- {
- struct MemHeader *mh;
- struct MemChunk *mc;
- APTR block1;
- APTR block2;
-
- /* Get the MemHeader needed to keep track of our new block */
- mh = (struct MemHeader *)AllocMem((LONG)sizeof(struct MemHeader), MEMF_CLEAR);
- if (!mh)
- exit(10);
-
- /* Get the actual block the above MemHeader will manage */
- mc = (struct MemChunk *)AllocMem(BLOCKSIZE, 0);
- if (!mc)
- {
- FreeMem(mh, (LONG)sizeof(struct MemHeader)); exit(10);
- }
-
- mh->mh_Node.ln_Type = NT_MEMORY;
- mh->mh_Node.ln_Name = "myname";
- mh->mh_First = mc;
- mh->mh_Lower = (APTR)mc;
- mh->mh_Upper = (APTR)(BLOCKSIZE + (ULONG)mc);
- mh->mh_Free = BLOCKSIZE;
-
- /* Set up first chunk in the freelist */
- mc->mc_Next = NULL;
- mc->mc_Bytes = BLOCKSIZE;
-
- block1 = (APTR)Allocate(mh,20);
- block2 = (APTR)Allocate(mh, 314);
-
- printf("mh = $%lx mc=$%lx\n", mh, mc);
- printf("block1 = $%lx block2 = $%lx\n", block1, block2);
-
- FreeMem(mh, (LONG)sizeof(struct MemHeader));
- FreeMem(mc, (LONG)BLOCKSIZE);
- }
-