AppleTi

[AppleTi]

A simple test, with //GS video on VGA and F18A video on a DVI input. Background noise courtesy of Herman's Head.

https://youtu.be/JoeJWYINToc

 

That looks pretty neat - I may have to get one or two of those for my Apple ][s.

[What is this expansion card?]

Yes, it's different... here's the code:

C400-    2C 58 FF    BIT $FF58
C403-    70 0C       BVS $C411
C405-    38          SEC    
C406-    90 18       BCC $C420
C408-    B8          CLV
C409-    50 06       BVC $C411
C40B-    01 15       ORA ($15,X)
C40D-    1B          ???
C40E-    1E 24 21    ASL $2124,X
C411-    8D FF CF    STA %CFFF
C414-    08          PHP
C415-    78          SEI
C416-    20 01 C8    JSR $C801
C419-    28          PLP
C41A-    60          RTS
C41B-    4C B4 C8    JMP $C8B4
C41E-    4C B1 C8    JMP $C8B1
C421-    4C A0 C8    JMP $C8A0
C424-    B8          CLV
C425-    08          PHP

From my limited knowledge, $C8xx are other ROM areas of the card?

 

 

According to http://fd.fabiensanglard.net/prince_of_persia/Inside%20the%20Apple%20IIe.pdf (around page 365), this card has signature bytes that indicate that it is compatible with the Pascal system (signature bytes at $38 and $18 $Cx05 and $Cx07); further, the code $15 at $Cx0C shows that this is a printer interface card.