@Mike
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Search found 9 matches
- Fri Aug 21, 2009 2:32 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
- Fri Aug 21, 2009 1:31 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
- Fri Aug 21, 2009 8:17 am
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
- Thu Aug 20, 2009 2:42 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
Sorry if I misled anyone with my post earlier today. I meant to say that I have a version compiled to run at $A009 with a manual start through SYS 40969. I did NOT mean to imply an autostarting image. For this binary I have simply replaced the first 8 bytes with $60 (RTS) to prevent the VIC from att...
- Thu Aug 20, 2009 3:07 am
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
Hi, When I worked on the original $7000 rom, I completely disassembled it and replaced the fixed references with references which are relative to the .ORG value. This allows me to re-compile it with just about any start address. Compiling a $A000 version should be trivial. I'll take a look tonight i...
- Tue Aug 11, 2009 1:49 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
Hi Mike, The answer to your first question appears to be that the commands are wedged in through the use of CHRGET. Although I haven't thoroughly dissected to code there are over 20 calls to $0073 so I think that pretty much confirms the method used. With regard to the second point, I'd already trie...
- Sun Aug 09, 2009 1:20 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
- Sun Aug 09, 2009 1:12 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
Hi Michael, Gosh that was a fast reply. The answer to your question is yes, I can relocate it to most areas of memory. I already have roms that run at $A000 and $B000. It will run in conjunction with the Super Expander with a couple of gocha's at the moment. The first is that it doesn't appear too t...
- Sun Aug 09, 2009 12:50 pm
- Forum: Programming
- Topic: Programmer's Aid cart Block 5
- Replies: 47
- Views: 16993
Programmer's Aid cart Block 5
Hi everyone, I recently bought an old vih 20, which was my very 1st computer way back in the 80's, and started to show it to my kids. '3k!' they laughed. 'Expandable to 27k' I replied and you can extend basic. Then I remembered that with the Programer's Aid cartridge in block 3 you were limited to 1...