Search found 69 matches
- Fri May 03, 2024 2:37 am
- Forum: Development
- Topic: I want to try something new for my next game... please read!
- Replies: 2
- Views: 145
Re: I want to try something new for my next game... please read!
You. Are. A. Machine! dr beep
- Tue Apr 30, 2024 6:28 pm
- Forum: Hardware
- Topic: RAM Packs Alternatives?
- Replies: 22
- Views: 602
Re: RAM Packs Alternatives?
I have an ZXpand+ and having trouble with wobble all the time. I ask the family not to breath near the table when I use the ZXpand+. Stange we can have so different experiences. Since I touched up each tab on the edge connector with a thin bead of solder, I've had no wobble problems, even with the ...
- Tue Apr 09, 2024 5:57 pm
- Forum: Development
- Topic: Why Does The Border Have to Be White?
- Replies: 4
- Views: 1220
Re: Why Does The Border Have to Be White?
I did a bit more work on this, but still have some white bars at the top and bottom on the 60Hz build. The problem is that eliminating the white bars slows gameplay too much. So, here is where I've ended up.
50Hz 60Hz
50Hz 60Hz
- Fri Apr 05, 2024 11:32 pm
- Forum: Development
- Topic: Why Does The Border Have to Be White?
- Replies: 4
- Views: 1220
Re: Why Does The Border Have to Be White?
Here is a 60Hz version for those, like me, afflicted with NTSC, including source code (compiled using TASM with NTSC defined). I'm stuck with a white line at the top because of how little processing time is left over for gameplay. Any ideas on how to remove it, if possible?
- Sat Mar 30, 2024 3:32 pm
- Forum: ZX BASIC
- Topic: Tricks in BASIC
- Replies: 57
- Views: 122850
Re: Tricks in BASIC
I love your suggestions, XavSnap.
You're such a trickster!
You're such a trickster!
- Sat Mar 30, 2024 3:18 pm
- Forum: ZX BASIC
- Topic: Tricks in BASIC
- Replies: 57
- Views: 122850
Re: Tricks in BASIC
Hi, In BASIC, after a FAST/SLOW process, an unsightly scrolling can occur when exiting the FAST mode. To avoid this dropout of the screen frame, just add a PAUSE before the SLOW commande: 10 FAST (... your code..) 1000 PAUSE 0 1010 SLOW Have fun. ...and don't forget to add this line if running on f...
- Mon Mar 18, 2024 2:53 pm
- Forum: ZX BASIC
- Topic: Strange integer behaviour
- Replies: 11
- Views: 3109
Re: Strange integer behaviour
Sort of like the calculators of the day.
- Mon Mar 18, 2024 1:36 pm
- Forum: ZX BASIC
- Topic: Strange integer behaviour
- Replies: 11
- Views: 3109
Re: Strange integer behaviour
Internally accurate down to 1/(2^32) ~= 0.0000000002328306437. So, yes, 9 to 10 digits. 32/log2(10)=9.63, to be more precise.
- Mon Mar 18, 2024 12:17 am
- Forum: ZX BASIC
- Topic: Strange integer behaviour
- Replies: 11
- Views: 3109
Re: Strange integer behaviour
The ZX81 is only capable of precision to 8 digits. Thus, the rounding.
- Sun Mar 17, 2024 5:23 pm
- Forum: ZX BASIC
- Topic: The PAUSE Bug Explained
- Replies: 1
- Views: 1423
The PAUSE Bug Explained
The ZX81 "PAUSE bug" Explained After trying to understand the exact nature of the ZX81 ROM PAUSE bug, I decided to write down the observed behavior for anyone interested. I'm sure there are details that others on this forum could add or correct, and I hope this thread can pull them out to be a one-...