Running old PC games on 'DX-Demo' prototype board

[29riteshkakkar]

looks cool..........

[29riteshkakkar]

how you play music and store in 0,1's...??

[CatHatZero01]

Wow...over twenty years ago...how PCs have changed since then.

[szati1977]

cga was 4 color ega was 16-64 color

[VintageJunior]

Geez, I want something like that too!

[linuxlove4004]

Hm, did I see this on The Vintage Computer Forums before? I think I did.

[CharlesBabbageJR]

very nice.

It seems like the pitch of the sounds/music in Alley Cat is lower than normal.

[dosgamer74]

@CharlesBabbageJR

Correct - the frequency is around 15% lower than the sound circuit of the real thing. While we could have corrected for it by selecting a suitable external clock crystal, we instead decided to leave little 'quirks' like this in for our first video (like no electric shock sound when the cat runs into an eel for example - that's all fixed now ;-) Cheers!

[KrispyKreme9]

Ah the memories all come flooding back. I remember playing that Bruce Lee game on my grandmothers computer.