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How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 6:21 am
by Crayon21
i'm curious. In addition to the regular character set, how do you access the new graphic set?
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 7:25 am
by mrtinb
In the manual page 5, lists the USR command you need to change to that char set. The USR command is also listed on the char tables in the end of the manual.
http://www.zx81stuff.org.uk/zx81/hardware/4KRom
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 9:23 am
by Crayon21
I tried, it's not working. What am I doing wrong?
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 9:55 am
by mrtinb
Crayon21 wrote: ↑Tue Jan 03, 2023 9:23 am
I tried, it's not working. What am I doing wrong?
Do you have the hardware for your ZX81?
Or are you using an emulator, which emulates the dk'tronics ROM?
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 10:47 am
by Crayon21
an emulator Eightyone v1.29
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 12:17 pm
by mrtinb
Under hardware settings try different settings under Interface tab:
Change field "Chr$ Gen", and see if there's an option for dk'tronics there.
If that doesn't work, then try combining it with setting or resetting 'Enable RAM in 8k-16K" under the "Advanced settings" tab:
Re: How do you access the additional graphical characters in the dk'tronics rom for the zx81
Posted: Tue Jan 03, 2023 9:20 pm
by Crayon21
it works! thanks