Hi @laserguidedcake,

Guess I will start by trying to answer your specific questions...

When it boots, I see some cool stats on the panel - where is this controlled/modified?

There is an LCD Driver that is enabled in RomWBW to manage the contents of the LCD that you are seeing. The source code for this driver is in the distribution in the file Source/HBIOS/lcd.asm. During the system boot process, the driver puts some static data on the LCD screen. After that, there are "hooks" in RomWBW that post events such as disk read and write. When those events fire, the LCD driver is notified and updates the screen.

RomWBW does not provide a generic API for writing to the LCD that an application might use. However, I think you will see that modifying the lcd.asm source is not too hard.

Note that with the RomWBW driver enabled, it will be writing to the LCD when it receives notification events. If you create an application that writes to the screen, then RomWBW is likely to come along and wipe out what you have done. So, if you want to "take over" the display, you should disable the RomWBW LCD driver.

What is everyone using to write to this display?

In the case of RomWBW itself, the lcd.asm driver is doing all of the writing to the display. I'm not sure what others are doing.

Can we use this display as a console? How?

I suppose this would be possible, but with some challenges:

• There is no keyboard associated with it.
• It is a very small screen and would be hard to be useful for much.
• You would need to disable the current driver in RomWBW and create a VDA driver for it. A fair amount of work, but possible.

What's the easiest way to get a clock to display?

I can think of 3 approaches off the top of my head.

1. Write an application that takes over the LCD and displays the time on it. The application would just sit in a loop updating the LCD when the time changes. You can ask RomWBW for the current date/time. While very easy, your system would not be able to do anything else while the clock is being displayed.

2. Modify the RomWBW LCD driver to listen for system timer events and update the LCD when the date/time changes.

3. Create a Terminate and Stay Resident (TSR) application that hooks the system timer and updates the LCD when the date/time changes.

In all cases you need to think through how to avoid collisions between existing RomWBW LCD activity and the clock display.

I expect these answers will just help you get a footing and you will have more questions. If so, just ask.

Thanks, Wayne