Search found 5 matches

by harlandski
Sat Mar 10, 2018 4:16 pm
Forum: Software
Topic: Trying to enter a line from a book fails for some reason
Replies: 6
Views: 2001

Re: Trying to enter a line from a book fails for some reason

Your reasoning looks amazing, but it just fails to properly parse hex unless you make the alteration I suggest. Before making the change the code was unworkable, and since making it, it works. Just try a simplified version: 10 DEF FN d(s$) = (s$ > "9") * (CODE s$-55)+(s$ <= "9") * (CODE s$ - 48) - (...
by harlandski
Sat Mar 10, 2018 1:05 am
Forum: Software
Topic: Trying to enter a line from a book fails for some reason
Replies: 6
Views: 2001

Re: Trying to enter a line from a book fails for some reason

By the way, I also had a problem with this line of the listing, but for a different reason. The expression: (s$ > "'") was clearly a misprint in the book and should read: (s$ > "9") The function is to parse hexadecimal numbers to decimal, but does not work unless you make this change to the publishe...
by harlandski
Thu Feb 22, 2018 4:02 am
Forum: FAQs
Topic: Tape loading basics
Replies: 3
Views: 1599

Re: Tape loading basics

Thank you for the reply and the troubleshooting advice. I will try all of your suggestions and report back - luckily I still have a tape head cleaner cassette! I hadn't considered that the unmarked 16K memory pack might not be working after all. I also have a Sinclair pack but that is definitely non...
by harlandski
Sat Feb 17, 2018 7:56 pm
Forum: FAQs
Topic: Tape loading basics
Replies: 3
Views: 1599

Tape loading basics

Any general advice on loading from original tapes? Following my ZX Spectrum experience I've tried: - Using an old-fashioned mono tape recorder (still works great with my Speccy) - Setting the volume to just off maximum - Only having ear plugs connected when loading - Trying at slightly different vol...
by harlandski
Sun Feb 11, 2018 8:45 am
Forum: Welcome Area
Topic: Hello from Kazakhstan
Replies: 1
Views: 409

Hello from Kazakhstan

As an avid ZX Spectrum user for most of my childhood, I was always interested in other Sinclair computers, and about 10 years ago I bought a ZX81. Since then I have moved to Kazakhstan, but have only recently brought the ZX81 out with me. I'm very pleased to say it's still working, and have set myse...