This is a nice implementation. I made something similar [1], based on the Post Room Computer [2]. Basically it is a two address (operand) modification of the

This is a nice implementation. I made something similar [1], based on the Post Room Computer [2]. Basically it is a two address (operand) modification of the LMC. It was used to as a teaching tool for undergrad students at my local university. It's a bit more fully featured - It supports absolute and register based address modes, macros, programs spanning multiple files. The computer is accessible via command line or using the in-built Java Swing UI. If anyone is bored and wanted to run it, heres a sample program: ;; A simple multiplication program INP :x: ; Input value and store at location :x: INP :y: ; Input value and store at location :y: MOV :result: :x: ; Copy the value at :x: into :result: ; Multiplication loop :loop: SUB :y: :one: ; Substract 1 from the the value at :y: JMP EQZ :end: ; If result of subtraction was 0, stop looping ADD :result: :x: ; Add the value at :x: to the result ; If the program reaches this stage multiplication is not complete ; So jump back to start of loop JMP LWY :loop: :end: ; Label to exit the loop OUT :result: ; Output the result HLT ; Stop execution ; Data Stores :x: (0) :y: (0) :result: (0) :one: (1) [1] https://github.com/Richard-Walton/The-Post-Room-Computer https://github.com/Richard-Walton/The-Post-Room-Computer [2] http://eprints.hud.ac.uk/2518/ http://eprints.hud.ac.uk/2518/