meminit.c

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#include <xinu.h>

void *minheap;
void *maxheap;

void meminit(void)
{
    struct memblk *memptr; /* Memory block pointer  */

    /* Initialize the minheap and maxheap variables */

    minheap = (void *)&end;
    maxheap = (void *)MAXADDR;

    /* Initialize the memory list as one big block */

    memlist.mnext = (struct memblk *)minheap;
    memptr = memlist.mnext;

    memptr->mnext = (struct memblk *)NULL;
    memlist.mlength = memptr->mlength =
        (uint32)maxheap - (uint32)minheap;
}