suborb

I don’t think I’m able to reproduce this one. If you have a clear test case that does show it then that would help. It could be an emulator issue?...

I've managed to reproduce with dstar_gencon. I think the cause of the trails is printing to the same cell too frequently (that is I think before it's finished rendering the...

I've just tried that out and even with a 50 millisecond delay between characters I get a snail trail. One thing that did work for me was to print a...

For dstar_gencon, printing a single space at a position outside of the game area seems to work around the issue: https://github.com/z88dk/z88dk/blob/master/examples/console/dstar_gencon.c#L670

Can you insert this at the start of main(): ``` *(unsigned char *)0x0b57 = 0; ``` The game then runs super fast, but I'm sure you've got a way of...

Weird. Trex was good for me, though unplayable due to being so fast. Let me try your invaders binary though. Edit: Hmmm: Try it from the debugger: ``` EB 0b57...

I've looked at that - he uploads a program to the sub CPU to do a limited set of operations. The one thing I'm thinking of bypassing the ROM for...

Polling for a key removes an entry from the keyboard ringbuffer. The keyboard ringbuffer is filled up by an interrupt triggered by the sub-cpu. That is the subcpu detects the...

To hook up to FILE you should be able to write an freopen trampoline and place it at the right point in the FILE array from the crt. There’s an...

Can you point me to the bit you're referring to? The one I'm thinking of is the device table layout in the crt which doesn't match what I thought you...