Hi, I just bought an SD2IEC for my vic 20 that I recently bought to play "blitz" and other old games that I used to as a kid!
I also got a 16GB memory expansion card for the vic, and a ms paceman cartridge (works fine).
I download the SD card starter pack from thefuturewas8bit
When I executed the following command
LOAD”FB",8<return>
RUN
It loads the CBM file browser (the black 8k one) and I am able to navigate and select games. Unfortunately, for most of the ones I tried, it loads them (green lights flash) then it goes back to basic
I removed the memory expansion card and some of the games that didn't run before ran (e.g. alien blitz) but a lot of games didn't run
I also tried renaming some of the files so they are all in lowercase and <8 characters, but that didn't really help.
1- Any ideas how to debug?
2- How can I test my memory expansion card? Is there a SW or a HW test I can do?
3- How can I convert my favorite game from a .TAP format to a .PRG file (Blitz). I tried using tapclean-0.34-OSX but despite fixing the tape first (which ran fine on Vice) it will not produce an output file. No error messages nothing.
THANKS!
VIC 20 SD2IEC help- Possible memory error??
- mrr19121970
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Re: VIC 20 SD2IEC help- Possible memory error??
Incidentally, I think Blitz is PAL only. Has anyone ever tried to do a conversion to NTSC?
Blitz was the very first game I had for the VIC-20 (bought at the same time as my C2N, a few weeks after I received the VIC-20.)
Blitz was the very first game I had for the VIC-20 (bought at the same time as my C2N, a few weeks after I received the VIC-20.)
Re: VIC 20 SD2IEC help- Possible memory error??
Thanks! You rock!mrr19121970 wrote:3 http://www.zimmers.net/anonftp/pub/cbm/ ... 0Blitz.prg
Re: VIC 20 SD2IEC help- Possible memory error??
Correct it's Pal. It kinda works on NTSC but only takes up 2/3 of the screen and uses the bottom/right part.Bobbi wrote:Incidentally, I think Blitz is PAL only. Has anyone ever tried to do a conversion to NTSC?
Blitz was the very first game I had for the VIC-20 (bought at the same time as my C2N, a few weeks after I received the VIC-20.)
If anyone knows how to fix it would be appreciated!
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Re: VIC 20 SD2IEC help- Possible memory error??
I guess it is a question of disassembling the code and looking for writes to the VIC registers at $9000 (horizontal position) and $9001 (vertical position). I should give it a go. I would love to play this old classic on real hardware and all my VICs are NTSC.
- mrr19121970
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Re: VIC 20 SD2IEC help- Possible memory error??
I thought it was written completely in basic ?
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Re: VIC 20 SD2IEC help- Possible memory error??
Yay! Seems to work fine!
(One thing I discovered is that it will only run if I don't load the 'VIC Wedge'. Guess memory is tight in the unexpanded machine!)
I had forgotten Blitz was written in BASIC.
(One thing I discovered is that it will only run if I don't load the 'VIC Wedge'. Guess memory is tight in the unexpanded machine!)
I had forgotten Blitz was written in BASIC.