Search found 133 matches

by poglad
Sun Jun 29, 2014 6:24 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

XavSnap wrote:Tell my more ....
:shock:
Now I'm longing for the old days of a cassette and a 10 minute coffee break. :roll:
by poglad
Sat Jun 28, 2014 5:09 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

XavSnap wrote:".81" files equal : <name header> & "P" memory file.
In a "P" file, the name tag is lost...
Now this explains everything. I always thought .P files and .81 files were the same, just a renamed extension. So what I described was in fact the .81 file - thank you for the explanation! :)
by poglad
Thu Jun 26, 2014 11:20 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

Okay, everybody - I was wrong, yeah? :lol:
by poglad
Thu Jun 26, 2014 10:16 pm
Forum: Development
Topic: Transparent case for ZX80CORE
Replies: 28
Views: 8464

Re: Transparent case for ZX80CORE

And another! My album of this adventure is now complete! https://www.flickr.com/photos/51900952@N08/sets/72157644628673844# 14513249454_f16c4ac91e_o.jpg I put a label on the back to show the switch positions, but I made it very slightly too wide - so you can see little white strips peeping out under...
by poglad
Wed Jun 25, 2014 9:15 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

Ah... okay, I accept the correction! :)
by poglad
Wed Jun 25, 2014 9:14 pm
Forum: Hardware
Topic: ZX81 in a another case and 'proper' keyboard?
Replies: 20
Views: 6253

Re: ZX81 in a another case and 'proper' keyboard?

1024MAK wrote:I have some 1980's replacement keyboards. One is a Memotech...
Have you tried that Memotech with the ZX80core? Does it work for you?

I have one and it doesn't work, but I suspect it could be the keyboard or interface itself that's faulty, rather than an incompatibility.
by poglad
Wed Jun 25, 2014 3:36 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

According to exactly that page the filename is _not_ coded into the .p nor the .z81 file. That page states that explicitely. It's not encoded as part of the .P format, because it doesn't need to be - it's already present in the data block saved by the ZX81. The .P format only specifies the addition...
by poglad
Mon Jun 23, 2014 11:40 pm
Forum: Development
Topic: How to inject programs into zx81 memory?
Replies: 24
Views: 6639

Re: How to inject programs into zx81 memory?

Don't forget that a ZX81 tape image begins with the filename. The final character of the filename has bit 7 set. Any bytes after that in the tape image can then be loaded to memory.
by poglad
Mon Jun 23, 2014 11:37 am
Forum: Development
Topic: Transparent case for ZX80CORE
Replies: 28
Views: 8464

Re: Transparent case for ZX80CORE

Superb! :D
by poglad
Sat Jun 21, 2014 9:40 pm
Forum: GAMES
Topic: Adventure 'A' - Planet Of Death
Replies: 37
Views: 13471

Re: Adventure 'A' - Planet Of Death

I only just noticed this thread. Planet of Death, eh? Somebody disassembled it and translated it into C. Who would do such a thing?
[it was me!] :roll:

I did it, then forgot about it. That was in 1998! Glad to see someone's taken it and done something good with it! :D