UINT8 __fastcall md_port_r(UINT16 port)
{
switch(port & 0xC0)
{
case 0x00:
return z80_read_unmapped();
case 0x40:
return vdp_counter_r(port);
case 0x80:
return vdp_read(port);
case 0xC0:
switch(port)
{
case 0xC0:
case 0xC1:
case 0xDC:
case 0xDD:
return input_r(port);
}
return z80_read_unmapped();
}
/* Just to please the compiler */
return 0;
}
UINT8 __fastcall smsj_port_r(UINT16 port)
{
port &= 0xFF;
if(port == 0xF2 && !(sms.memctrl & 4))
return fmunit_detect_r();
switch(port & 0xC0)
{
case 0x00:
return z80_read_unmapped();
case 0x40:
return vdp_counter_r(port);
case 0x80:
return vdp_read(port);
case 0xC0:
return input_r(port);
}
/* Just to please the compiler */
return 0;
}
uint8 ggms_port_r(uint16 port)
{
port &= 0xFF;
switch(port & 0xC0)
{
case 0x00:
return z80_read_unmapped();
case 0x40:
return vdp_counter_r(port);
case 0x80:
return vdp_read(port);
case 0xC0:
switch(port)
{
case 0xC0:
case 0xC1:
case 0xDC:
case 0xDD:
return input_r(port);
}
return z80_read_unmapped();
}
/* Just to please the compiler */
return -1;
}
uint8 sms_port_r(uint16 port)
{
switch(port & 0xC0)
{
case 0x00:
return z80_read_unmapped();
case 0x40:
return vdp_counter_r(port);
case 0x80:
return vdp_read(port);
case 0xC0:
return input_r(port);
}
/* Just to please the compiler */
return -1;
}