RaySollium99/picodrive
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core, linux+libretro, multiplayer adaptor support

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This commit is contained in:
kub 2022-01-26 19:34:13 +00:00
parent a833e78c98
commit 1d5885dd84
9 changed files with 104 additions and 49 deletions
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59
pico/memory.c
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@ -262,43 +262,29 @@ static u32 read_pad_team(int i, u32 out_bits)
int phase = Pico.m.padTHPhase[i];
u32 value;
if (phase == 0) {
switch (phase) {
case 0:
value = 0x03;
goto out;
}
if (phase == 1) {
break;
case 1:
value = 0x0f;
goto out;
}
pad = ~PicoIn.padInt[0]; // Get inverse of pad MXYZ SACB RLDU
if (phase == 8) {
break;
case 4: case 5: case 6: case 7: // controller IDs, all 3 btn for now
value = 0x00;
break;
case 8: case 10: case 12: case 14:
pad = ~PicoIn.padInt[(phase-8) >> 1];
value = pad & 0x0f; // ?x?x RLDU
goto out;
}
else if(phase == 9) {
break;
case 9: case 11: case 13: case 15:
pad = ~PicoIn.padInt[(phase-8) >> 1];
value = (pad & 0xf0) >> 4; // ?x?x SACB
goto out;
break;
default:
value = 0;
break;
}
pad = ~PicoIn.padInt[1]; // Get inverse of pad MXYZ SACB RLDU
if (phase == 12) {
value = pad & 0x0f; // ?x?x RLDU
goto out;
}
else if(phase == 13) {
value = (pad & 0xf0) >> 4; // ?x?x SACB
goto out;
}
if (phase >= 8 && pad < 16) {
value = 0x0f;
goto out;
}
value = 0;
out:
value |= (out_bits & 0x40) | ((out_bits & 0x20)>>1);
return value;
}
@ -308,8 +294,8 @@ static u32 read_pad_4way(int i, u32 out_bits)
u32 pad = (PicoMem.ioports[2] & 0x70) >> 4;
u32 value = 0;
if (i == 0 && !(pad & 1))
value = read_pad_3btn(pad >> 1, out_bits);
if (i == 0 && pad <= 3)
value = read_pad_3btn(pad, out_bits);
value |= (out_bits & 0x40);
return value;
@ -357,7 +343,10 @@ void PicoSetInputDevice(int port, enum input_device device)
if (port < 0 || port > 2)
return;
switch (device) {
if (port == 1 && port_readers[0] == read_pad_team)
func = read_nothing;
else switch (device) {
case PICO_INPUT_PAD_3BTN:
func = read_pad_3btn;
break;
@ -409,7 +398,7 @@ NOINLINE void io_ports_write(u32 a, u32 d)
Pico.m.padTHPhase[a - 1] = 0;
else if ((d^PicoMem.ioports[a]) & 0x60)
Pico.m.padTHPhase[a - 1]++;
} else if (port_readers[a - 1] == read_pad_4way) {
} else if (port_readers[0] == read_pad_4way) {
if (a == 2 && ((PicoMem.ioports[a] ^ d) & 0x70))
Pico.m.padTHPhase[0] = 0;
if (a == 1 && !(PicoMem.ioports[a] & 0x40) && (d & 0x40))