Search found 398 matches

by bola_dor
Tue Dec 21, 2021 11:52 am
Forum: Development
Topic: Open source utility to perform WAV->P conversion for ZX81
Replies: 20
Views: 16736

Re: Open source utility to perform WAV->P conversion for ZX81

Yup,, links are gone does anyone have a copy of this?
by bola_dor
Sat Nov 20, 2021 1:28 am
Forum: ZX BASIC
Topic: ZX80 comparators with negative ressults...
Replies: 14
Views: 3841

Re: ZX80 comparators with negative ressults...

Good..
This is becoming a reference wiky 💪💪
by bola_dor
Fri Nov 19, 2021 9:09 pm
Forum: ZX BASIC
Topic: ZX80 comparators with negative ressults...
Replies: 14
Views: 3841

Re: ZX80 comparators with negative ressults...

Commodore basic is Microsoft basic.. so I guess there is not a surprise there. I guess MSX basic report true as -1 too? Tiny Basic was a kind of a "open source" proyect in response to the Microsoft basic being heavy and expensive.. they used the (c)copyleft and wrong reserved marks.... as far as I s...
by bola_dor
Fri Nov 19, 2021 8:57 pm
Forum: ZX BASIC
Topic: ZX80 comparators with negative ressults...
Replies: 14
Views: 3841

Re: ZX80 comparators with negative ressults...

Wow.. really surprised!!!!!
by bola_dor
Fri Nov 19, 2021 3:03 am
Forum: ZX BASIC
Topic: [Tuto] Basic Screen mirroring in A$...
Replies: 14
Views: 3460

Re: [Tuto] Basic Screen mirroring in A$...

12 LET X=1 13 LET Y=1 14 LET G=0 15 LET S=0 16 LET M=0 Should be: 12 LET X=PI/PI 13 LET Y=X 14 LET G=TAN PI 15 LET S=G 16 LET M=S It's now a perfect tutorial !!! Without any D_File stuff !!! ... dedicated to Crayon21. TAN PI = ("Tant pis" in French) ... "so much worse." :lol: :lol: :lol: :lol: :lol...
by bola_dor
Fri Nov 19, 2021 1:57 am
Forum: ZX BASIC
Topic: [Tuto] Basic Screen mirroring in A$...
Replies: 14
Views: 3460

Re: [Tuto] Basic Screen mirroring in A$...

I know now.
Its a good tutorial!!!
by bola_dor
Fri Nov 19, 2021 1:48 am
Forum: ZX BASIC
Topic: [Tuto] Basic Screen mirroring in A$...
Replies: 14
Views: 3460

Re: [Tuto] Basic Screen mirroring in A$...

XavSnap wrote: Fri Nov 19, 2021 1:32 am :shock:

Really !

Imagine a foggy map with many treasures or monsters.


Don't tell me Spanish can't imagine treasures or monsters in a map !!!
Yes!!! I mean I can't see the hidden treasures through the fog in your map....
by bola_dor
Fri Nov 19, 2021 1:46 am
Forum: ZX BASIC
Topic: ZX80 comparators with negative ressults...
Replies: 14
Views: 3841

Re: ZX80 comparators with negative ressults...

As far as the ZX80, ZX81 and ZX Spectrum BASICs are concerned, anything other than zero is ‘true’. Including negative numbers. Mark Yes. But I am talking about the result of a true expression ... LET A=A+(C=B) won't work the same on ZX80 than on ZX81.. let alone logical operators as they are bitwis...
by bola_dor
Fri Nov 19, 2021 1:18 am
Forum: ZX BASIC
Topic: [Tuto] Basic Screen mirroring in A$...
Replies: 14
Views: 3460

Re: [Tuto] Basic Screen mirroring in A$...

Oh I see now
Or I don't 🤣
by bola_dor
Fri Nov 19, 2021 1:03 am
Forum: ZX BASIC
Topic: ZX80 comparators with negative ressults...
Replies: 14
Views: 3841

ZX80 comparators with negative ressults...

Hi, I was messing around with some Tiny BASIC codes and porting them to ZX80.. and found that <,>,=,<> operators used as comparators gives "-1" if true as a result :shock: PRINT 5<6 gives -1 I tried with ZX81 and result is 1(positive) if condition is true. ZX80 4K BASIC has some relevant diferencies...