Search found 106 matches
- Fri Apr 12, 2024 2:10 pm
- Forum: Emulators
- Topic: ZX81 for iOS loads programs now?
- Replies: 4
- Views: 3877
ZX81 for iOS loads programs now?
I noticed that the latest update says it can now load programs, but I can’t find any more info. Anyone know about this?
- Fri Aug 04, 2023 6:27 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
Thank you!
- Fri Aug 04, 2023 4:36 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
So we use both routines together in the code?
- Fri Aug 04, 2023 3:27 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
In Part 4) Input from the keyboard, there are two routines: nokey and upkey. After dealing with nokey, it says: “Get GAME1-002.ASM again in edit, we add a few lines Again UNDER SHOWA add the following code.” Here is my question: do we replace the nokey routine with the upkey routine, or do we KEEP t...
- Thu Aug 03, 2023 1:51 pm
- Forum: Software
- Topic: Camouflage
- Replies: 5
- Views: 12170
Re: Camouflage
Here’s a good full-screen version of it too:
https://youtu.be/8u9ZyV-BHFA
He later became famous as Frank Sidebottom.
Google that name. He’s a legend!
https://youtu.be/8u9ZyV-BHFA
He later became famous as Frank Sidebottom.
Google that name. He’s a legend!
- Mon Jul 31, 2023 6:52 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
Brilliant! Thanks.
- Mon Jul 31, 2023 3:42 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
I’m just at lesson 3 at the moment, Displaing On A Screen, so what I mean is- does this section of code: gamecode ld a,63 showa ld (screen),a dec a jr nz,showa jr gamecode Should this code only display an ever-changing character in one pixel at the top left corner of the screen, while the rest of th...
- Mon Jul 31, 2023 1:37 am
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
Thanks! I gave it a try, and the resulting program displayed a black square screen, twenty by twenty, with the character set in one single “pixel” in the top left corner, running ever faster through the characters.
Is that the correct outcome?
Is that the correct outcome?
- Sun Jul 30, 2023 3:08 pm
- Forum: Development
- Topic: Gamecoding in machinecode on a ZX81.
- Replies: 58
- Views: 57714
Re: Gamecoding in machinecode on a ZX81.
Does the section below literally mean enter those two lines into the editor 20 times? So: block 20, 128 db 118 block 20, 128 db 118 block 20, 128 db 118 Etc.... Go to the dfile and erase the lines between the comments "; each line has text and a Newline" and "; this byte fills the unused part of the...
- Fri Jul 28, 2023 1:34 am
- Forum: Development
- Topic: Using Inkeys
- Replies: 23
- Views: 13612
Re: Using Inkeys
Nice!
Another method I’ve seen is:
10 LET N=0
20 LET A$=INKEY$
30 IF A$ <> “” THEN GOTO 60
40 LET N=N+1
50 IF N<50 GOTO 20
60 IF A$=“8”...etc
In line 50 you set the length of pause you want.
Another method I’ve seen is:
10 LET N=0
20 LET A$=INKEY$
30 IF A$ <> “” THEN GOTO 60
40 LET N=N+1
50 IF N<50 GOTO 20
60 IF A$=“8”...etc
In line 50 you set the length of pause you want.