Steve Sims

this line won't work: ``` 90 *TIME STR$(year) STR$(month) STR$(day) STR$(hour) STR$(minutes) STR$(seconds) ``` reason being is that whatever is after the `*` is just passed thru to MOS as...

It's probably more sensible to implement clearing of VDP comms flags via a MOS call. If we do that and also implement a SYS command as I've suggested in breakintoprogram/agon-bbc-basic#58...

Reading this, it feels to me that we should just have two different timers. One should be a genuine centisecond timer, de-coupled from the VBLANK interrupt. This should probably use...

I've raised a new (alternate) PR on breakintoprogram/agon-vdp#76 which includes explicit commands for setting volume and frequency levels on individual channels. There are also commands to allow channel 0 to...

FYI all of this functionality is now present and merged into the [Agon Console8 VDP firmware](https://github.com/AgonConsole8/agon-vdp), complete with frequency envelope support of a type that can fully emulate Acorn's stepped...

Hey @leventp FYI I raised a PR yesterday after my initial sound enhancements got merged into the VDP that also does the frequency envelope stuff. There are some further sound...

the underlying cause for this issue was that the fab-gl canvas fills in the newly scrolled-in background with the currently selected graphics foreground colour, if one has been set. Acorn...

further to my earlier comment, the implementation of "scroll protection" cursor behaviour in the Quark VDP differs significantly from the system Acorn described and implemented. what was implemented was, essentially,...

the Console8 VDP 2.7.0 implements all of Acorn's cursor control VDU commands. this will let you change the cursor to flash faster, be a steady (non-blinking) cursor, hide it, and...

the configuration dialog box that opens up in this video relies on the UI components that have been removed from vdp-gl. it is not practical to add those features back...