Commander X16

This is a follow-up to the Understanding VERA Blog post. I integrated the VERA core into BoxLambda, an FPGA-based retro-style microcomputer project I'm working on:

https://epsilon537.github.io/boxlambda/ ... ting-vera/

I integrated the VERA Versatile Embedded Retro Adapter into the BoxLambda SoC. The Blog post below discusses the changes I made to the VERA core to interface it with a 32-bit system. https://epsilon537.github.io/boxlambda/integrating-vera/ https://epsilon537.github.io/boxlambda/assets/vera_fpga_test...

Hi all,

I've been studying VERA's implementation for my BoxLambda project and wrote a post about it: Understanding VERA.

You don need to know this stuff to be able to use VERA, but I figured some people on this forum might be interested enough to take a look 'under the hood'.

Cheers,
Epsilon.

I did a couple more measurements and put the whole thing into a table:

Well, what are the scanline limits for sprites when 4-bit per-pixel tile layers are in play? What about 2-bit per-pixel bitmap mode? There are lots of modes and mode combinations to measure: tile mode, bitmap mode, 8bpp sprites and/or layers, 4bpp sprites and or layers, 2bpp layers, 0-2 layers enab...

Hi all, I've been running some VERA simulations to try and get some insight into its behavior. One area I looked at is the sprites-per-scanline limit for the following configuration: - 640x480 VGA mode - Layer 0 and 1 enabled in 8bpp tile mode - 8bpp sprites These are the results I got: - Max. 43 8x...

Two BoxLambda devlog posts for the price of none: <a href="https://epsilon537.github.io/boxlambda/testing-with-verilator/" rel="external nofollow">Testing with Verilator</a> <a href="https://epsilon537.github.io/boxlambda/warnings-and-lint/" rel="external nofollow">Warnings and Verilator Lint</a>

I've been working on a build system for BoxLambda:

https://epsilon537.github.io/boxlambda/make-and-bender/

Very cool!

It looks like X16 discord is the place to be nowadays. I thought it was pretty quiet here on the forum, but when I log in to discord I'm happy to see that lots of cool things are brewing!

Another post in the BoxLambda Blog. I'm building a tiny bootstrap version of the system and bring it up on my Arty A7-35T:

https://epsilon537.github.io/boxlambda/hello-world/