EI_PAGESIZE
EI_PAGESIZE * 2, 0, &sc->sc_mem_h);
0, 0,EI_PAGESIZE / 2);
cnt = EI_PAGESIZE - src % EI_PAGESIZE;
cnt = EI_PAGESIZE - dest % EI_PAGESIZE;
#define EI_NPAGES (EI_MEMSIZE / EI_PAGESIZE)
#define ei_atop(a) (((a) % EI_MEMSIZE) / EI_PAGESIZE)
#define ei_atopo(a) ((a) % EI_PAGESIZE)