Mike wrote:To cite eslapion, if you completely remove the VIC-I - it is not a VIC-20 anymore.
This can be argumented for with two observations: first - the VIC-20 is the only micro that has been built with the VIC-I as video chip. There exist some other appliances - notably at least one arcade cabinet with a, IIRC, space invaders clone; and it was also intended for use in medical equipment. It's quite possible those other uses went by a different bond-out option. Second - all the programs/games/tools you see around here won't anymore work on that remnant of a VIC-20. The rest of eslapion's statements, namely also replacing the CPU, RAM, ROM, I/O, glue logic for faster components - to keep what? The mainboard? Really? - can only be dismissed as badly made hyperbole. Even a PC running VICE with xvic is more of a VIC-20 than taking the original hardware and going down that path.
The idea is to have a VIC-20 or close cousin thereof which still allows you to use simple programs for access to the user port, joystick port, etc... a faster machine which generally remains compatible for hardware projects.
XVic will accelerate your software but the main feature of the VIC-20 being to be able to do hardware stuff easily is completely lost.
Also, claiming that
... all the programs/games/tools you see around here won't anymore work on that remnant of a VIC-20. is the same as claiming that all software designed for the VIC-20 will not work on a C64 and that's... false.
I'm taking back the designation as "badly made hyperbole". You're just talking plain bullshit.
Maybe your trolling attempts are better left at the
forums of 6502.org. They seem to be a better match for your concoctions.
Anyone who thinks differently than you is wrong and bad and talking plain bullshit...
... and trolling too apparently...
Oh, and this one:
eslapion wrote:Well, the bit shifting bug was fixed in the W65C22N and AFAIK, SD cards do support serial transfers. Perhaps if you replace the VIA responsible for the user port PB lines with one of these, you could directly access an SD card from the VIC-20.
You just don't have the slightest clue what I was talking about.
... just read the reply from norm8332...
You didn't have the slightest clue what I was talking about, now did you ?
You mentioned accessing an SD card through IO2 or IO3 ranges. Of course, doing the same through an improved VIA by the user port is COMPLETELY missing the point. How inadequate of me...
Be normal.