void __fastcall sms_port_w(UINT16 port, UINT8 data)
{
switch(port & 0xC1)
{
case 0x00:
memctrl_w(data);
return;
case 0x01:
ioctrl_w(data);
return;
case 0x40:
case 0x41:
psg_write(data);
return;
case 0x80:
case 0x81:
vdp_write(port, data);
return;
case 0xC0:
case 0xC1:
return;
}
}
void sms_port_w(uint16 port, uint8 data)
{
switch(port & 0xC1)
{
case 0x00:
memctrl_w(data);
return;
case 0x01:
ioctrl_w(data);
return;
case 0x40:
case 0x41:
psg_write(data);
return;
case 0x80:
case 0x81:
vdp_write(port, data);
return;
case 0xC0:
case 0xC1:
return;
}
}
void __fastcall smsj_port_w(UINT16 port, UINT8 data)
{
port &= 0xFF;
if(port >= 0xF0)
{
switch(port)
{
case 0xF0:
fmunit_write(0, data);
return;
case 0xF1:
fmunit_write(1, data);
return;
case 0xF2:
fmunit_detect_w(data);
return;
}
}
switch(port & 0xC1)
{
case 0x00:
memctrl_w(data);
return;
case 0x01:
ioctrl_w(data);
return;
case 0x40:
case 0x41:
psg_write(data);
return;
case 0x80:
case 0x81:
vdp_write(port, data);
return;
case 0xC0:
case 0xC1:
return;
}
}
void main()
{
int i;
char *ptr;
vdp_set_address(0x8004); // mode 4, disable hbl irq
vdp_set_address(0x8160); // screen on, enable vbl irq
vdp_set_address(0x820e); // name table @ $3800
vdp_set_address(0x85ff); // sprite table @ $3f00
vdp_set_address(0x8700); // backdrop is color 0
vdp_set_address(0x8800); // scrollx is 0
vdp_set_address(0x8900); // scrolly is 0
vdp_set_address(0xc000);
ptr = pal;
for (i=0; i<32; i++) {
vdp_write(*ptr++);
}
// turn off sprites
vdp_set_address(0x3f00);
vdp_write(0xd0);
//Sound off - if resetted from a prior game
set_sound_volume(0,0);
set_sound_volume(1,0);
set_sound_volume(2,0);
set_sound_volume(3,0);
while (1) {
console_init();
console_clear();
console_gotoxy(3,0);
console_puts("MASTER SYSTEM ROM LOADER\n");
console_gotoxy(3,1);
console_puts("------------------------\n");
//console_gotoxy(3,3);
i = 0;
if (!sd_init()) {
console_puts("Error initializing SD/MMC card\n");
} else {
#ifdef DEBUG2
console_puts("SD card initialized\n");
#endif
if (!fat_init()) {
//console_puts("could not initialize FAT system\n"); //qq
} else {
#ifdef DEBUG2
console_puts("FAT system initialized\n");
#endif
i = 1;
}
}
choose_mode(i);
}
}
