BTX_PGSIZE
#define BTX_MAPPED(btx) (((btx).btx_pgctl | (BTX_PGSIZE / 4 - 1)) + 1)
if (ihdr.org && ihdr.org != BTX_PGSIZE)
ihdr.org, BTX_PGSIZE);
cwr = howmany(ihdr.text, BTX_PGSIZE);
if (ppage > 0 || (ppage && wpage && ihdr.org >= BTX_PGSIZE)) {
BTX_PGSIZE / 0x100000, !!(btx.btx_flags & BTX_MAPONE),
BTX_PGSIZE - BTX_MAPPED(btx) * 4 / BTX_PGSIZE);
if (le32toh(ex->a_entry) >= BTX_PGSIZE)
hdr->org = BTX_PGSIZE;