Add info on how to run the assembler/simulator

readme.md

@@ -2,8 +2,6 @@
 
 ## TODO
 
-- [ ] Document current state of affairs (how to run it etc)
-
 Computer:
 - [ ] Implement carry flag on SUB
 
@@ -13,6 +11,17 @@ Misc:
 - [ ] Do a proper binary version... (or lose the typed arrays?)
 - [ ] Extract debugging to its own module
 
+## Run the assembler/simulator
+
+Assemble source code:  
+```npm run assemble source_code.asm```
+
+Assemble and run, with animated display of screen memory:  
+```npm run display source_code.asm```
+
+Assemble and run, with debug output:  
+```npm run debug source_code.asm```
+
 ## Instruction set
 
     0   END