Descripción de Logisim CPU - Rev. B:

Decided to give this whole Logisim thing another go. This is the result. Rebuilt from scratch, but based heavily on the previous design(s), it now supports arbitrary length 8-bit instructions, from 1 to 15 bytes, 1 to 15 clock cycles in total. The instruction set is largely unfinished, with plenty of space to add more function to this little bugger, but I would probably want to get rid of the graphics accelerators first, because as it is now, logisim has a hard time redrawing the mass of components. Adding some subcircuits could also solve this problem. As an extra (more like a necessity) I added some 'graphics accelerator' circuits too. One for text, the other for sprite-based drawing. The programs run in the video: #1: Control dot on screen with joystick #2: Fill screen with random bits #3: Keyboard text input, font rendering from character map. #4: Bitmap rendering from RAM. ### UPDATE ### Separated the graphics and the CPU, logisim just couldn't take it. Added a "Serial Bus", with example programs. More in-depth Readme. ### IMPORTANT ### This file was ONLY TESTED TO WORK in Logisim 2.7.1 The CPU ran at an average of 450Hz during the recording. Music: MacGyver theme, 8bit-ified. NEW DOWNLOAD: http://www.mediafire.com/file/zt47v5z4fweso23/1337cpu_001.rar Old Download: http://www.mediafire.com/file/pbaaqx8935qfq7j/1337cpu.rar (Absolutely no guarantee that the link will work for any extended period of time!)