[stella] Timer Test, Take 1

Tue Apr 15 00:22:26 CDT 2008

Well, I'm stumped, on two accounts:

(1) When I run the timer test on my 7800 with my Cuttle Cart 2, I get the same results as you-- it works fine for 1T, 8T, and 64T, but 1024T shows 0 for FF, FE, FD, FC, and FB. However, it shows the expected values in z26 and Stella 2.5.1. I guess I've got some debugging to do for?1024T-- unless the 6532 RIOT chip behaves that way for 1024T? I haven't tried it on my 2600 with my Krokodile Cartridge yet.

(2) When I run some of my color-flickering demos on my LCD HDTV, there's no flickering-- it's as if the second frame isn't being displayed for some reason. Is that how things work on LCD HDTVs? For example, if I were to plug in Stellar Track, would I just get Venetian blinds, instead of flickering Venetian blinds? I selected the?4:3 picture mode, and tried changing all of the settings on the TV, but other than stretching the picture in different ways, there's no flickering at all. Does the fact that the picture is 262 lines instead of 262.5 lines mess things up? This is the first time I've actually hooked up my Ataris (other than the Flashback 2) to my LCD HDTV.

Michael

-----Original Message-----
From: Thomas Jentzsch <tjentzsch at web.de>
To: Atari 2600 programming list <stella at atari2600.org>
Sent: Mon, 14 Apr 2008 2:13 pm
Subject: Re: [stella] Timer Test, Take 1

Michael wrote:
> Okay, here's my first version of a timer test.

Very nice. Thanks.

> If the score is green, then it matches the expected result; if it's
> red, then it disagrees with the expected result.

On my PAL, black, 4-switch everything is fine, except for the 1024T
values $ff..$fb. The result there is 0.

Have fun!
Thomas                            
_______________________________________________________
Thomas Jentzsch         | *** Every bit is sacred ! ***
tjentzsch at web dot de |

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