Search found 170 matches
- Mon Jan 20, 2020 11:52 pm
- Forum: Emulators
- Topic: Emulating musical tones using cassette out - help!
- Replies: 5
- Views: 160
Some quick thoughts: Indeed with IN the signal should go low, and with OUT high, which would suggest the sound_beeper argument in sz81 is reversed. And indeed INs (with an even port number) are prevented to cause VSYNCs when a program is running, which is with NMIs in SLOW mode. The IN/OUT works as ...
- Sat Sep 21, 2019 9:19 am
- Forum: Software
- Topic: Load files to any memory location without ZXpand
- Replies: 3
- Views: 1295
The 2.3.10 source and Windows binaries have been updated with a minor change for UDG. Without this change, the first "BBB" video worked, but hopefully now also the new example videos. A difference is that switching off WRX doesn't seem to be necessary. Hopefully the minor change does not give issues...
- Sat Aug 24, 2019 4:14 pm
- Forum: Development
- Topic: Advances in retro video compression
- Replies: 9
- Views: 1456
The movie looks amazing! :) The slowdown in EightyOne may be caused by emulated delays in the ZXpand code. FileRead sets a delay via COMFUNC(FileRead,100) of 100 units. Roughly every 1 ms the zx81 code decreases this delay with 10 units. The resulting delay of about 10 ms for every 256 bytes may be ...
I'm not sure if there is a manual; the project is described here:
http://forum.tlienhard.com/phpBB3/viewt ... f=2&t=1029