lauchmelder/NESEmulator
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

added controller input

Browse source
This commit is contained in:
Lauchmelder 2021-10-30 21:01:27 +02:00
parent 640df2feb2
commit 674ee5059b
6 changed files with 83 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

16
NES Emulator/bus.c
View file

@ -74,7 +74,12 @@ Byte readBus(struct Bus* bus, Word addr)
}
else if (0x4000 <= addr && addr <= 0x4017) // I/O space
{
val = bus->io[addr - 0x4000];
switch (addr)
{
case 0x4016:
val = pollInput(&bus->controller);
break;
}
}
else if (0x4020 <= addr && addr <= 0xFFFF) // Cartridge space
{
@ -102,7 +107,14 @@ void writeBus(struct Bus* bus, Word addr, Byte val)
}
else if (0x4000 <= addr && addr <= 0x4017) // I/O space
{
bus->io[addr - 0x4000] = val;
switch (addr)
{
case 0x4016:
bus->controller.strobe = (val & 0x1);
if (val & 0x1)
fillRegister(&bus->controller);
break;
}
}
else if (0x4020 <= addr && addr <= 0xFFFF) // Cartridge space
{