The GUI

specter comes with a tkinter GUI, which may provide a nicer interface to work with.

Assembling:

Running (with color markers):

Assembly error (for explanation see Assembly Errors):

Explanation of buttons:

• Run to halt - Run until a HLT instruction is encountered. The speed of simulation can be changed by the Speed slider. The units are in seconds.
• Pause - Stop the program running if the code was set running by Run to halt.
• Run one step - Execute next instruction, then halt. Can be pressed multiple times for "step though" effect.
• Reset - Reset registers and memory. Equivalent to restarting the program.
• Exit - Does what is says on the packet.

Explanation of colors in memory and accumulator:

• Red - Was written to in the last step.
• Yellow - Was read in the last step.
• Green - Instruction was executed in the last step.
• Grey - Instruction will be executed in the next step.
• White - Nothing happened.

Other notes:

• The memory can be changed when paused by editing a memory value. The value must be between 0 and 999.

Command line options:

• -h, --help - show this help message and exit
• -f FILE, --file FILE - lmc file (skips file open dialog)
• -l, --licence - display licence
• -V, --version - display version

Also see: The CLI