int image_init(void)
{
int err;
int count, indx, i, j;
UINT32 mask, dev_mask = 0;
/* setup the globals */
images = NULL;
multiple_dev_mask = 0;
/* first count all images, and identify multiply defined devices */
count = 0;
for (i = 0; Machine->devices[i].type < IO_COUNT; i++)
{
/* check to see if this device type is used multiple times */
mask = 1 << Machine->devices[i].type;
if (dev_mask & mask)
multiple_dev_mask |= mask;
else
dev_mask |= mask;
/* increment the count */
count += Machine->devices[i].count;
}
/* allocate the array */
if (count > 0)
{
images = auto_malloc(count * sizeof(*images));
memset(images, 0, count * sizeof(*images));
}
/* initialize the devices */
indx = 0;
for (i = 0; Machine->devices[i].type < IO_COUNT; i++)
{
for (j = 0; j < Machine->devices[i].count; j++)
{
/* setup the device */
tagpool_init(&images[indx + j].tagpool);
images[indx + j].dev = &Machine->devices[i];
if (Machine->devices[i].init)
{
err = Machine->devices[i].init(&images[indx + j]);
if (err != INIT_PASS)
return err;
}
}
indx += Machine->devices[i].count;
}
add_exit_callback(Machine, image_exit);
return INIT_PASS;
}
/* basic floppy_image initialization common to floppy_open() and floppy_create() */
static floppy_image *floppy_init(void *fp, const struct io_procs *procs, int flags)
{
floppy_image *floppy;
floppy = malloc(sizeof(struct _floppy_image));
if (!floppy)
return NULL;
memset(floppy, 0, sizeof(*floppy));
tagpool_init(&floppy->tags);
floppy->io.file = fp;
floppy->io.procs = procs;
floppy->io.filler = 0xFF;
floppy->flags = (UINT8) flags;
return floppy;
}
