Denial

I was wondering if you set two channels up with the same frequency but 180 degrees out of phase with each other, would changing volume on both channels in tandem produce analogue levels?
Thus leaving 1 noise channel and 1 tone channel free for music?

Top of cart looks weird, more like an IEEE plug?

matsondawson wrote:Could do a Fortran Vic-20, I hear Fortran is pretty fast vs Basic.

Whoops sorry, I meant Forth.

Could do a Fortran Vic-20, I hear Fortran is pretty fast vs Basic.

I'd easily pay more than 20,000 yen for a good boxed one.

Yes, it's under the metal casing.

p.s. Don't use vacuums on electronics, they produce a static electricity and may zap your components.

Odd, Microsoft Security Essentials and Symantec have both failed to detect a virus. What are you using? Do you have to run it for it to be detected?

Hi guys,

Would those of you with pictures of your Vic20 set-ups from the 80's, please post your pics. I want to fill in the white-space in my emulator, and want to see what sort of things kids had round their machines in the good old days.

I have a game that has set:
DDRB: 255
ORB: 247

And the Port B input is 0.

If I read IRB, what value should I expect?
I was expecting 247 as all bits are configured as outputs, is this correct?

Could I put a copy up on my site in the reference section of http://www.mdawson.net/vic20chrome/vic20.php ?
Or could you host a copy that's not in a ZIP that I could put a reference to?

BTW I think the game is awesome.

Ah, it wasn't my joystick code, it was the random number generator on the vic doesn't work if the via timers init at 0. As the random number generator uses uninitialised memory on startup. Fixed now.

http://www.mdawson.net/vic20chrome/vic2 ... /dream.prg

What line in the code reads the joystick port...
I think it's line 1 and it's reading from 37151 (register 15), which is the no handshake version of register 1 on the via.

btw, joystick isn't working in my emulator, can you tell me what line handles joystick input?

Maybe the heart should chase you, and your job is to avoid it.
When it catches you, you win.