STACK
STACK stack[MAXDEPTH];
bus_space_write_1(iot, ioh, STACK, i);
for (i = 0; i < STSIZE && bus_space_read_1(iot, ioh, STACK) == i; i++)
ahd_outb(ahd, STACK, i & 0xFF);
ahd_outb(ahd, STACK, (i >> 8) & 0xFF);
stack_entry = ahd_inb(ahd, STACK)
|(ahd_inb(ahd, STACK) << 8);
ahd_inb(ahd, STACK)|(ahd_inb(ahd, STACK) << 8);
ahd_outb(ahd, STACK, ahd->saved_stack[i] & 0xFF);
ahd_outb(ahd, STACK, (ahd->saved_stack[i] >> 8) & 0xFF);
printf(" 0x%x", ahc_inb(ahc, STACK)|(ahc_inb(ahc, STACK) << 8));