funnyos/kern/kern_mem.c - diff

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version 1.1, 2007/10/16 09:41:04

version 1.2, 2007/10/16 12:43:11

Line 154

/* calculate pointer to this (last) page */

lastpageptr = (uint32_t *)((allocbase + (8 * nmbmbytes * KMEM_PAGESIZE)) + (KMEM_PAGESIZE * nmbmbits));

DPRINTF("lastpageptr=0x%x\n", lastpageptr);

/* rewind pointer to the first byte */

firstpageptr = lastpageptr - ((npages - 1));

DPRINTF("firstpageptr=0x%x\n", firstpageptr);

offbits = mask ? mask - 1 : mask; /* XXX */

/* fill this (npages pages) region with zeroes */

Line 186

Line 184

firstpageptr = lastpageptr - ((npages - 1));

/* got it */

DPRINTF("allocated, addr=0x%x\n", firstpageptr);

DPRINTF("allocated, addr=0x%x len=0x%x [0x%x-0x%x]\n", firstpageptr, npages * KMEM_PAGESIZE, firstpageptr, lastpageptr);

/* decrement system free pages */

freepages -= npages;