3
extern VIDEO_UPDATE(megatech_bios);
4
extern VIDEO_UPDATE(megatech_md_sms);
5
extern DRIVER_INIT( megatech_bios );
6
extern MACHINE_RESET(megatech_bios);
7
extern MACHINE_RESET(megatech_md_sms);
8
extern VIDEO_EOF(megatech_bios);
9
extern VIDEO_EOF(megatech_md_sms);
11
extern READ8_HANDLER( sms_vcounter_r );
12
extern READ8_HANDLER( sms_vdp_data_r );
13
extern WRITE8_HANDLER( sms_vdp_data_w );
14
extern READ8_HANDLER( sms_vdp_ctrl_r );
15
extern WRITE8_HANDLER( sms_vdp_ctrl_w );
17
extern void init_for_megadrive(running_machine *machine);
18
extern void segae_md_sms_stop_scanline_timer(void);
21
extern READ8_HANDLER( md_sms_vdp_vcounter_r );
22
extern READ8_HANDLER( md_sms_vdp_data_r );
23
extern WRITE8_HANDLER( md_sms_vdp_data_w );
24
extern READ8_HANDLER( md_sms_vdp_ctrl_r );
25
extern WRITE8_HANDLER( md_sms_vdp_ctrl_w );