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 */
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 */
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static chunk_t *chunk0;
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static chunk_t *chunk0;
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static spinlock_t heaplock;
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static spinlock_t heaplock;
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void heap_init(__address heap, int size)
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void heap_init(__address heap, __u32 size)
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{
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{
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    spinlock_initialize(&heaplock);
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    spinlock_initialize(&heaplock);
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    memsetb(heap,size,0);
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    memsetb(heap, size, 0);
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    chunk0 = (chunk_t *) heap;
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    chunk0 = (chunk_t *) heap;
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    chunk0->used = 0;
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    chunk0->used = 0;
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    chunk0->size = size - sizeof(chunk_t);
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    chunk0->size = size - sizeof(chunk_t);
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    chunk0->next = NULL;
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    chunk0->next = NULL;
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    chunk0->prev = NULL;
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    chunk0->prev = NULL;
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}
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}
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/*
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/*
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 * Uses first-fit algorithm.
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 * Uses first-fit algorithm.
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 */
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 */
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void *malloc(int size)
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void *malloc(size_t size)
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{
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{
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    pri_t pri;
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    pri_t pri;
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    chunk_t *x, *y, *z;
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    chunk_t *x, *y, *z;
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    if (size == 0)
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    if (size == 0)