Posted By
Csabo
on 2011-08-23
12:00:33
|  Re: Another plus 4 problem
The last two links you posted are the same, you probably meant to post another link.
So the "changed" characters are always at the same position?
The character code for space is 32 ($20 in hexadecimal). For the double quote, it's 34 ($22). There's only one bit difference between the two. It's the same thing with the "Q" and "S" characters, it's the same bit. I'm just guessing, but it could be the RAM. As long as it's on the screen area, all you're going to have is some odd letters, but if it's the "code" area (above $1000), the program's code will have some random bugs in it. So the fact that some games run and others don't is just chance.
|
