Y86 Instruction Set Simulator

This is a very simple implementation of the Y86 Instruction Set Simulator. It has limited pipelining support, and does not handle any data / instruction hazards in the pipeline.
The maximum supported memory is 16KB (memory and data inclusive). All operaands are 64 bits in size

Description

There are two parts to this: the parser, and the simulator
The parser is responsible to read a ".ys" file, and generate an object (".yo") file.
The simulator program will take the generated ".yo" file as an output, and has options to run the program in several modes:

Run the full program
Run the program one (simulated) cycle at a time
Run the next "n" clock cycles
Toggle Pipeline mode
Show the contents of the registers
Show the pipeline stage registers
Show the contents of the memory

Prerequisites

sudo apt install flex

Software

OS: Ubuntu 18.04
GCC version: gcc (Ubuntu 7.3.0-27ubuntu1~18.04) 7.3.0

Building the code

Run make from the trunk folder

Running the Code

The binaries are placed under the bin folder.

Specify an assembly file as input to the parser:
bin/y86-parser samples/addnos.ys
This generates the "samples/addnos.yo" file

To run the simulator, run bin/y86-sim which opens a menu based interface to execute instructions

Cleanup

Run make clean from the trunk folder to remove any existing object files and binaries