static int userport_digimax_read_snapshot_module(snapshot_t *s)
{
BYTE major_version, minor_version;
snapshot_module_t *m;
/* enable device */
set_digimax_enabled(1, NULL);
m = snapshot_module_open(s, snap_module_name, &major_version, &minor_version);
if (m == NULL) {
return -1;
}
/* Do not accept versions higher than current */
if (major_version > SNAP_MAJOR || minor_version > SNAP_MINOR) {
snapshot_set_error(SNAPSHOT_MODULE_HIGHER_VERSION);
goto fail;
}
if (0
|| (SMR_B(m, &userport_digimax_address) < 0)
|| (SMR_BA(m, digimax_sound_data, 4) < 0)
|| (SMR_B(m, &snd.voice0) < 0)
|| (SMR_B(m, &snd.voice1) < 0)
|| (SMR_B(m, &snd.voice2) < 0)
|| (SMR_B(m, &snd.voice3) < 0)) {
goto fail;
}
return snapshot_module_close(m);
fail:
snapshot_module_close(m);
return -1;
}
static int set_digimax_base(int val, void *param)
{
int addr = val;
int old = digimax_sound_chip.chip_enabled;
if (val == digimax_address) {
return 0;
}
if (addr == 0xffff) {
if (machine_class == VICE_MACHINE_VIC20) {
addr = 0x9800;
} else {
addr = 0xde00;
}
}
if (old) {
set_digimax_enabled(0, NULL);
}
switch (addr) {
case 0xdd00: /* special case, userport interface */
break;
case 0xde00:
case 0xde20:
case 0xde40:
case 0xde60:
case 0xde80:
case 0xdea0:
case 0xdec0:
case 0xdee0:
if (machine_class != VICE_MACHINE_VIC20) {
digimax_device.start_address = (WORD)addr;
digimax_device.end_address = (WORD)(addr + 3);
export_res.io1 = &digimax_device;
export_res.io2 = NULL;
} else {
return -1;
}
break;
case 0xdf00:
case 0xdf20:
case 0xdf40:
case 0xdf60:
case 0xdf80:
case 0xdfa0:
case 0xdfc0:
case 0xdfe0:
if (machine_class != VICE_MACHINE_VIC20) {
digimax_device.start_address = (WORD)addr;
digimax_device.end_address = (WORD)(addr + 3);
export_res.io1 = NULL;
export_res.io2 = &digimax_device;
} else {
return -1;
}
break;
case 0x9800:
case 0x9820:
case 0x9840:
case 0x9860:
case 0x9880:
case 0x98a0:
case 0x98c0:
case 0x98e0:
case 0x9c00:
case 0x9c20:
case 0x9c40:
case 0x9c60:
case 0x9c80:
case 0x9ca0:
case 0x9cc0:
case 0x9ce0:
if (machine_class == VICE_MACHINE_VIC20) {
digimax_device.start_address = (WORD)addr;
digimax_device.end_address = (WORD)(addr + 3);
} else {
return -1;
}
break;
default:
return -1;
}
digimax_address = val;
if (old) {
set_digimax_enabled(1, NULL);
}
return 0;
}
