Search found 486 matches

by mrtinb
Sat Oct 21, 2017 10:17 am
Forum: Software
Topic: ZX81 Newsletter 1983
Replies: 20
Views: 180

Re: ZX81 Newsletter 1983

Wow! Thank you. That's a great blessing. :)
by mrtinb
Fri Oct 20, 2017 7:25 pm
Forum: Software
Topic: ZX81 Newsletter 1983
Replies: 20
Views: 180

Re: ZX81 Newsletter 1983

Sad to hear there's only one issue of the newsletter that has survived. I would gladly have read them all.
by mrtinb
Sun Oct 15, 2017 6:16 pm
Forum: Sinclair Misc
Topic: MEMOTECH
Replies: 15
Views: 291

Re: MEMOTECH

The problem with using a "regular" keyboard with an interface is that the text and graphics on the keys are missing. This makes the keyboard be like an emulator or the like.

That's why I made my own keyboard. I used Wilf Rigther's schematics for an external interface.
by mrtinb
Fri Oct 13, 2017 8:47 am
Forum: Hardware
Topic: What is the going price to have EPROMs burnt?
Replies: 20
Views: 292

Re: What is the going price to have EPROMs burnt?

This is a curcuit for an EEPROM burner.

http://www.ichbinzustaendig.de/dev/meeprommer-en

This is a mapping between Arduino Nano -> Arduino Uno, if that's what you got.

http://www.instructables.com/file/F9JQU ... ize=MEDIUM
by mrtinb
Fri Oct 13, 2017 5:35 am
Forum: Hardware
Topic: What is the going price to have EPROMs burnt?
Replies: 20
Views: 292

Re: What is the going price to have EPROMs burnt?

I haven't got an EPROM burner but I've found an article on how to use an Arduino as a burner. I think this will be sufficient for me. I'm trying to say that it's not so difficult as it used to be, to burn an EPROM, because the Internet has given so many possibilities. The cost is falling rapidly lik...
by mrtinb
Tue Oct 10, 2017 3:50 pm
Forum: Sinclair Misc
Topic: MEMOTECH
Replies: 15
Views: 291

Re: MEMOTECH

Maybe you could write the creators http://www.primrosebank.net/computers/memotech.htm
by mrtinb
Tue Oct 10, 2017 11:21 am
Forum: Hardware
Topic: Memotech Memopak 32k
Replies: 11
Views: 279

Re: Memotech Memopak 32k

Lardo Boffin wrote:
Tue Oct 10, 2017 10:55 am
Thanks. It was just idle curiosity - I have no idea what I would do with 64k on a zeddy anyway!
I have no version of Hot Z (Hi-Z) which runs without 48K.
by mrtinb
Mon Oct 09, 2017 9:56 pm
Forum: Development
Topic: Solved: Calling MAKE-ROOM/099E
Replies: 11
Views: 218

Re: Calling MAKE-ROOM/099E

It works, if I only insert data between lines, and remember to update line number and line length.

Problem SOLVED.
by mrtinb
Mon Oct 09, 2017 9:39 pm
Forum: Development
Topic: Solved: Calling MAKE-ROOM/099E
Replies: 11
Views: 218

Re: Calling MAKE-ROOM/099E

Maybe I should just try to insert a new line, and not modify an existing one.

Thanks for your feedback
by mrtinb
Mon Oct 09, 2017 8:50 pm
Forum: Development
Topic: Solved: Calling MAKE-ROOM/099E
Replies: 11
Views: 218

Re: Calling MAKE-ROOM/099E

That's the book I'm using. Just thought it would be more detailed.

Thanks for your input. I'll try to fix the BASIC line length, and see if it'll fix it.