EDIT: found the answer myself. Google is my best friend
![Smile :)](./images/smilies/icon_e_smile.gif)
http://www.atarimax.com/jindroush.atari ... c.html#NOP
Code: Select all
SHIFT + 2 = 3624RCSQEXA
SHIFT + 3 = 324RCS
SHIFT + 4 = 3524RCSQWZ<-
SHIFT + 5 = 54QWZ<-
SHIFT + 6 = 62QEXA
SHIFT + Q = 6524QEXAWZ<-
SHIFT + W = 5T4RQEWZ<-BG
SHIFT + E = 6T2RQEXAWBG
SHIFT + R = 3T24RCSEWBG
SHIFT + T = TREWBG
SHIFT + <- = 54QWZ<- (same as with 5 above)
SHIFT + A = 62QEXA (same as with 6 above)
SHIFT + S = 324RCS (same as with 3 above)
SHIFT + D = 365TVD
SHIFT + F = VCXZBF
SHIFT + G = TREWBG
SHIFT + Z = 5V4CQXWZ<-BF
SHIFT + X = 6V2CQEXAZBF
SHIFT + C = 3V24RCSXZBF
SHIFT + V = 365TVDCXZBF
SHIFT + B = TVRCEXWZBGF
The Video Diagnostic cart uses it's own font - but only because it uses 40x24 mode. So it has READY? and the colours there.MADrigal wrote:Also from my memory (you could confirm or reject this), the diagnostic programs do not call the BIOS, and they have their own character sets, often not matching the "usual" ascii codes. For example, on the video diagnostic program you can only find ASCII data for the letters "R,E,A,D,Y,?". Is this correct?(
The first question is how far have they gotten with it?MADrigal wrote:There's a missing ROM dump, that is the CPU program. The EPROM got damaged when unsoldering. It's quite a long story, no need o enter into details.
Anyway I have partial dumps of the ROMs, which were made by me and other people, using a variety of EPROM readers.
Each and every byte misses bits 1 and 6 due to a damage in the EPROM wires package.
I have programmed an useful tool that displays the single bits in each byte, also visually. And you can change the bits values by simple clicking on them.
I would provide the EPROM and the tool (which is currently in use of a few MAME devs, anyway), if you want to have a look.]