Denial

Not quite the same but I found this

https://www.ebay.com/itm/314765290463

Wayne / Art Ravers wrote: ↑Wed Nov 15, 2023 2:24 pm I have already acquired a Kernal Rom Chip, just need to get a 6502 now - Any suggestions on Places that are reliable please ?

I'm pretty sure I've ordered parts from this guy

https://www.ebay.co.uk/itm/325396424917

DrVeryEvil wrote: ↑Wed Oct 25, 2023 2:38 pm A quick tip, all the data and address line are accessible from the character ROM chip.

Back in the 80's I made an internal 3K expansion module that fitted into the socket

https://www.sleepingelephant.com/ipw-we ... php?t=7016

I've updated the user guide I wrote to include all the new features

https://eden.mose.org.uk/download/FE3%2 ... 0Guide.pdf

chysn wrote: ↑Sun Oct 22, 2023 9:55 am I'm not sure which SD2IEC I have. It doesn't really say anything on it except for "sd2iec". When I run the command "X?" it returns

Read the command channel immediately after boot, it returns the firmware version.

A new release (1.6) with another new feature. I've added a simple directory/image navigator (F2 from the main menu). This allows you to easily traverse a directory tree on the SD card, including entering images, and then boot to BASIC without needing loader files. Download link: https://eden.mose.or...

I don't think it's possible to create a single .PRG file for this game. It contains several files that all load to the same address (except the last one) (cbm) file 0:* LOADER (SYS850): PRG, size=69 bytes, start=$0352 STAGE1: PRG, size=4098 bytes, start=$1000 STAGE2: PRG, size=1026 bytes, start=$100...

Mayhem wrote: ↑Tue Oct 17, 2023 3:22 pm I think what's more surprising is there are PAL Vic20 from Japan. They are all in the 5xxxxx serial number range I believe.

The one I have has a 5xxxxx serial number.

Could you attach a photo?

When adding to the accumulator using ADC, how can I detect whether a zero roll-over has taken place? That's precisely what the carry bit is for, so your original code should have been bcc inc_src_hi_ptr_done There are a number of implementations of block moves in the 6502.org code repository, http:...

How can I disable the joystick port from the command line? I can see lots of options for configuring/adding joysticks in the VICE manual but nothing to actually remove the Keyset A setting. From the command line help -joydev1 <0-9> Set device for native joystick port (0: None, 1: Numpad, 2: Keyset ...

There were many manufacturers of these memories, Commodore were not consistent with which they used and you can consider them all suitable. The only parameter you need to be concerned about is the access time, that's the number of the end. The chip you want to replace ends in"-3" that mean...

The VIC-20 (and C64) need 9V AC (alternating current) on pins 6 and 7. Don't connect 9V DC to either pin, you'll probably fry something.

I built a PSU for an early two pin model, I used a toroidal transformer for that.

I presume they implement this

https://en.wikipedia.org/wiki/Basic_Lin ... ubprograms

No worries, it was fun. It's a really good game, the action is very smooth. I didn't notice any glitches while I was playing.