static WRITE_HANDLER( sound_bank_w )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
int bank_A=0x20000 * (data&0x3);
int bank_B=0x20000 * ((data>>2)&0x3);
K007232_bankswitch(0,RAM+bank_A,RAM+bank_B);
}
static void flkatck_init_machine( void )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
int bank_A, bank_B;
bank_A = 0x20000 * 0;
bank_B = 0x20000 * 1;
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
}
static WRITE_HANDLER( aliens_snd_bankswitch_w )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
/* b1: bank for chanel A */
/* b0: bank for chanel B */
int bank_A = 0x20000*((data >> 1) & 0x01);
int bank_B = 0x20000*((data) & 0x01);
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
}
static WRITE_HANDLER( scontra_snd_bankswitch_w )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
/* b3-b2: bank for chanel B */
/* b1-b0: bank for chanel A */
int bank_A = 0x20000*(data & 0x03);
int bank_B = 0x20000*((data >> 2) & 0x03);
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
}
static void crimfght_snd_bankswitch_w(int offset, int data)
{
unsigned char *RAM = memory_region(REGION_SOUND1);
/* b1: bank for channel A */
/* b0: bank for channel B */
int bank_A = 0x20000*((data >> 1) & 0x01);
int bank_B = 0x20000*((data) & 0x01);
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
}
static WRITE_HANDLER( gbusters_snd_bankswitch_w )
{
unsigned char *RAM = memory_region(REGION_SOUND1);
int bank_B = 0x20000*((data >> 2) & 0x01); /* ?? */
int bank_A = 0x20000*((data) & 0x01); /* ?? */
K007232_bankswitch(0,RAM + bank_A,RAM + bank_B);
#if 0
{
char baf[40];
sprintf(baf,"snd_bankswitch = %02x", data);
usrintf_showmessage(baf);
}
#endif
}