The Online Javascript assembler-simulator from the RISC Relay CPU was changed. It now knows the instructions of the new CPU. It also assembles the microcode (but the source of the microcode is for the moment fixed in the Javascript code). It can simulate the instructions at the microcode level. If you press SAVE, it will store 3 files to your local computer:

• The source code
• The object code in hex
• The microcode in hex

To use it, click One Square Inch CPU assembler and simulator !

Not much testing was done yet, so changes are likely to come. Therefore, I do not post the JS code yet.

[edit: JS code is in the files section now]