Search found 1184 matches

by bwinkel67
Thu Dec 14, 2023 8:17 am
Forum: For Sale
Topic: QL Games/Software on mdv Cartridge.
Replies: 9
Views: 4548

Re: QL Games/Software on mdv Cartridge.

dex wrote: Thu Dec 14, 2023 7:22 am VROOM is incompatible with Minerva ROM.
Probably the only QL game with this incompatibility.

What ROM do You have?
JSU
by bwinkel67
Wed Dec 13, 2023 11:31 pm
Forum: For Sale
Topic: QL Games/Software on mdv Cartridge.
Replies: 9
Views: 4548

Re: QL Games/Software on mdv Cartridge.

Btw, I have a copy of Vroom that I bought for pretty cheap at RWAP when I was getting a keyboard membrane. I haven't been able to get it to run successfully. On my BBQL it starts the game but freezes. I tried to run it on Q-Emulator via the floppy drive, and no success. Was Vroom write-protected? Co...
by bwinkel67
Wed Dec 13, 2023 7:58 am
Forum: General QL Chat
Topic: QL Holiday cards
Replies: 21
Views: 8309

Re: QL Holiday cards

Using Andrews code I created the following Christmas card for 2023. It's not complete as I want to add some blinking lights and have lights in windows go on/off, maybe have the Grinch drop a random amount of bombs, not all four each time. Once I finish it I'll include a zip file with the BASIC code....
by bwinkel67
Tue Dec 12, 2023 11:03 pm
Forum: Hardware
Topic: New microdrive internal replacement
Replies: 141
Views: 1024445

Re: New microdrive internal replacement

...and as Peter alluded to, emulators are really nothing more than fancy interpreters. I've written both...not only the ZXSimulator which is a ROM emulator (i.e. that is really an interpreter that mimics the interpreter of the original ZX81) but also true processor-based emulators. They all take the...
by bwinkel67
Tue Dec 12, 2023 10:31 am
Forum: Hardware
Topic: New microdrive internal replacement
Replies: 141
Views: 1024445

Re: New microdrive internal replacement

Well, the sampled Microdrive sound used can be found in the source code: https://github.com/stephen-usher/vDrive-Sound-Board/blob/main/ATTiny85/mdvsnd-v1.ino I need to implement your solution. I bought the same thing that Noel did and its scraping microdrive sound was pretty bad so I uninstalled it...
by bwinkel67
Tue Dec 12, 2023 5:24 am
Forum: Hardware
Topic: New microdrive internal replacement
Replies: 141
Views: 1024445

Re: New microdrive internal replacement

Exactly what many solutions do using FPGAs. Interpret what it should do since... you have not the original logic schema (technology, context (voltages, etc)) or somebody try to reproduce as close as possible the "real/original" behavior. POVs of view, if for you FPGAs is same than origina...
by bwinkel67
Mon Dec 11, 2023 9:44 pm
Forum: Software & Programming
Topic: Sprites on QL
Replies: 14
Views: 5733

Re: Sprites on QL

Ah, that makes sense. I really like your Sprite-like mechanism. I'm wondering if MOVE_MEMORY can be replaced by an inner for loop if compiled. I'll have to try it since, in BASIC, that inner for loop runs really slow. But with this technique it would be pretty easy to create a game in BASIC. The ani...
by bwinkel67
Mon Dec 11, 2023 8:24 am
Forum: Software & Programming
Topic: Sprites on QL
Replies: 14
Views: 5733

Re: Sprites on QL

I was able to convert it to half its size and it still works. santa2_spr.zip I wrote a little BASIC program to do so: 10 REMark loads original sprite 15 PRINT #0, "Loading original Santa into memory.": a = RESPR(13600): LBYTES win1_santa_spr, a 20 REMark now generate new sprite using half ...
by bwinkel67
Sun Dec 10, 2023 11:39 pm
Forum: Software & Programming
Topic: Sprites on QL
Replies: 14
Views: 5733

Re: Sprites on QL

I simply used Photoshop to create the sprite sheet, saved is as a RAW file that uses QL mode 8 pallette, then converted it in QL screen format. There is a sprite sheet for the owl's blink and one for Santa. The gift box is just an image (only one frame). Keep in mind that my sprites are NOT the sam...
by bwinkel67
Sun Dec 10, 2023 9:09 pm
Forum: Hardware
Topic: CPLD replacement for ZX8301
Replies: 223
Views: 50139

Re: CPLD replacement for ZX8301

I just saw this 8-minute video (posted 8 months ago) by Danieel Terdina about an FPGA replacement for the ZX8301 he was designing:

https://www.youtube.com/watch?v=7EizW3ZWNqc