Ed English's Xmas demo from 83 at DP. Anyone .bin it yet?

[Godzilla]

http://www.digitpress.com/library/techdocs...ard_8-10-83.pdf

 

I was wondering if anyone had been industrious enough to see what that file does when run on an atari 2600...

 

They also put up some of ed's other 2600 source code. Cool stuff.

[Wickeycolumbus]

Im typing the source into my text editor right now. I will post the bin and source file when I finish

[Godzilla]

huzzah! many thanks upon you. wonder if OCR would help...

Edited December 23, 2008 by Godzilla

[+remowilliams]

Just for kicks I ran it through a quick and dirty OCR. Results were not worth a whole bunch.

[Wickeycolumbus]

Just for kicks I ran it through a quick and dirty OCR. Results were not worth a whole bunch.

 

Whats OCR?

[+remowilliams]

Optical Character Recognition.

[yuppicide]

I use OCR software at work to convert lists of buyers from a fashion show.

 

OCR sucks for "scanned" items and even worse for faxes. Because scans and faxes can have imperfections, little marks/dots on them, etc.

 

For computer generated files, such as a non-scanned PDF, they're excellent at converting.

[Wickeycolumbus]

Optical Character Recognition.

 

Well that would have been helpful Oh well, Im almost done typing it out.

[+remowilliams]

OCR sucks for "scanned" items and even worse for faxes. Because scans and faxes can have imperfections, little marks/dots on them, etc.

I recently finished OCR'ing the nine years of Antic magazine scans that I obtained lately (~10GB of PDFs). They actually came out amazingly well. Took a whole lot of processor time to get that bunch done.

[Wickeycolumbus]

Alright, im done typing but I dont get anything Was anyone able to get anything with the OCR? Here are my files.

Archive.zip

[+Mitch]

What are you using to compile it?

 

Mitch

[Wickeycolumbus]

What are you using to compile it?

 

Mitch

 

DASM, I did find one mistake though, but it still dosent work.

Archive_2.zip

[Wickeycolumbus]

There are still mistakes in my coppied source, but this should give you the idea.

 

@remowilliams, could you post the binary you made from the OCR?

xmascard.zip

Edited December 23, 2008 by Wickeycolumbus

[tremoloman2006]

There are still mistakes in my coppied source, but this should give you the idea.

 

@remowilliams, could you post the binary you made from the OCR?

 

In Stella, I got a little tree, some jarble that is obviously trying to say "Merry", and a long hanging EEEAAAAAAAA sound. Hey, it's a start!

[Thomas Jentzsch]

In Stella, I got a little tree, some jarble that is obviously trying to say "Merry", and a long hanging EEEAAAAAAAA sound. Hey, it's a start!

 

I am afraid that there isn't much more. The code partially defines some more letters and texts (Xmas, from, presents, indiv) but doesn't display those. Indiv indicates that this was meant to become a personalized cart.

[+Omegamatrix]

Just saw this now and all I can say is Wow! That is some real source code. At the same time the list file says it's only 269 bytes. I can't imagine it doing much.

[+Omegamatrix]

Hello Wickey,

 

 

There is lots of stuff that didnt't come out true in your disassembele. I noticed this when I compared the .lst I made of it to the original rom. Take a look at the hex values in the .pdf file to yours. Where it is different t could be different adressing methods or stuff added/missing in the rom that gives wronfg addressl Anyhow you're a smart guy and I mean now criticism here cause I'm sure you'll figure it out. I only point it out cause I know you want it to be true, and I think the key is where the orgins lay. The hex values could be good byut in the wrong places I don't know.

 

 

 

I hate egg nog. I treally do...

[Wickeycolumbus]

Hello Wickey,

 

 

There is lots of stuff that didnt't come out true in your disassembele. I noticed this when I compared the .lst I made of it to the original rom. Take a look at the hex values in the .pdf file to yours. Where it is different t could be different adressing methods or stuff added/missing in the rom that gives wronfg addressl Anyhow you're a smart guy and I mean now criticism here cause I'm sure you'll figure it out. I only point it out cause I know you want it to be true, and I think the key is where the orgins lay. The hex values could be good byut in the wrong places I don't know.

 

 

 

I hate egg nog. I treally do...

 

 

For the most part, the different hex values are because Ed English started his ROM at $3000 and I started it at $F000 (which is pretty standard). This would cause the 2 bytes after each branching instruction to be slightly off from the values in his source. Also, I left out an RTS right before the music routine to see if the music would play, but it only plays a long tone. Here is the rom with the RTS. My guess is that this version of the source is for a WIP of the Christmas card because there is a lot of data that is not even used by the program.

xmascard.bin