Search found 73 matches
- Wed Jun 12, 2019 9:05 pm
- Forum: Development
- Topic: New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)
- Replies: 32
- Views: 17481
Re: New hardware I/O board using Parallax Propeller
It could make VGA or composite video, but it would be an independent screen (it would not be a copy of what is on the normal screen). This is because I don't have enough address lines to monitor that much memory (I only have access to 4 addresses). LIkewise, with the keyboard. It could support a PS/...
- Wed Jun 12, 2019 3:53 pm
- Forum: Development
- Topic: New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)
- Replies: 32
- Views: 17481
Re: New hardware I/O board using Parallax Propeller
Hey Tim, Yeah I saw them, but they are "out of stock". I tried modifying a longer connector, but I made a mess of it. It's good enough to test with. I am really just wondering what connectors to put on the board, RCA, VGA, etc. I think it will also have a row of pin so you can connect a daughterboar...
- Wed Jun 12, 2019 12:23 am
- Forum: Development
- Topic: New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)
- Replies: 32
- Views: 17481
New hardware I/O board using Parallax Propeller (VGA,Sound,Joystick,etc)
Hey guys, I'm working on a new hardware project. An I/O board for the ZX81 based on the Parallax Propeller. I want to keep it very simple and able to be made from all thru-hole parts. It's a very simple board with the propeller being fast enough to handle all the bus timing. Anyway, it currently is ...
- Thu Apr 18, 2019 6:01 pm
- Forum: Hardware
- Topic: NOOO.. My just arrived TS 1500 is flakey!
- Replies: 10
- Views: 4316
Re: NOOO.. My just arrived TS 1500 is flakey!
If you haven't sent it back yet. Try connecting a 16K RAM pack and see if it boots.
I have one that does that and it has bad RAM, and I just use it with a RAM pack attached.
Bean
I have one that does that and it has bad RAM, and I just use it with a RAM pack attached.
Bean
- Thu Apr 26, 2018 2:17 pm
- Forum: Development
- Topic: Pretty fast Mandelbrot set generator...
- Replies: 8
- Views: 10498
Re: Pretty fast Mandelbrot set generator...
I have updated the mandelbrot drawing program.
I now use 4.12 fixed point math so you can zoom in further.
I also added a couple more features (print, set max depth, etc).
I think this is quite a good demonstration program for the good ol' zeddy.
Bean
I now use 4.12 fixed point math so you can zoom in further.
I also added a couple more features (print, set max depth, etc).
I think this is quite a good demonstration program for the good ol' zeddy.
Bean
- Mon Apr 23, 2018 7:06 pm
- Forum: Development
- Topic: Pretty fast Mandelbrot set generator...
- Replies: 8
- Views: 10498
Re: Pretty fast Mandelbrot set generator...
I noticed if you zoom in too much it just goes blank. I think the increment goes to zero.
I am using 8.8 fixed point math in the asm. I guess I could use 4.12 and get more zoom.
Bean
I am using 8.8 fixed point math in the asm. I guess I could use 4.12 and get more zoom.
Bean
- Mon Apr 23, 2018 5:14 pm
- Forum: Development
- Topic: Pretty fast Mandelbrot set generator...
- Replies: 8
- Views: 10498
Pretty fast Mandelbrot set generator...
I wrote a program a play with the Mandelbrot set.
Uses ASM to draw the set and BASIC to handle the user interface.
Takes about 85 seconds in slow mode (NTSC) or about 16 seconds in fast mode.
Comments welcome...
Bean
Uses ASM to draw the set and BASIC to handle the user interface.
Takes about 85 seconds in slow mode (NTSC) or about 16 seconds in fast mode.
Comments welcome...
Bean
- Wed Nov 22, 2017 1:29 am
- Forum: GAMES
- Topic: Moon Patrol
- Replies: 33
- Views: 37172
Re: Moon Patrol
Moggy,
I will make the characters different so the UDG can work better.
I'll use inverse periods for the top section, etc...
Bean
I will make the characters different so the UDG can work better.
I'll use inverse periods for the top section, etc...
Bean
- Sun Nov 19, 2017 3:53 pm
- Forum: GAMES
- Topic: Moon Patrol
- Replies: 33
- Views: 37172
Re: Moon Patrol
Sirmorris,
I will post the source after I get a little further along. It's kind of a mess right now as I am just "making it work".
Actually what the heck, here it is...
Bean
P.S. What I could use is some help with the graphics, I'm not an artistic person...
I will post the source after I get a little further along. It's kind of a mess right now as I am just "making it work".
Actually what the heck, here it is...
Bean
P.S. What I could use is some help with the graphics, I'm not an artistic person...
- Sun Nov 19, 2017 3:46 am
- Forum: GAMES
- Topic: Moon Patrol
- Replies: 33
- Views: 37172
Re: Moon Patrol
Use
; Jump = 1,Q,A,zero,P,enter,space
; Shoot = 2,W,S,Z,9,O,L,period
Ship moves and launches bomb that create craters. You can shoot the ship.
If you don't jump a crater, you get returned to BASIC.
Comments Welcome...
Bean
; Jump = 1,Q,A,zero,P,enter,space
; Shoot = 2,W,S,Z,9,O,L,period
Ship moves and launches bomb that create craters. You can shoot the ship.
If you don't jump a crater, you get returned to BASIC.
Comments Welcome...
Bean