☣ Warning: This project was created during my studies for educational purposes only. It may contain non-optimal solutions.
Simple application that implements a model of a microprocessor has been created. The processor has four 16-bit general purpose registers named AX, BX, CX and DX, each treated as a pair of 8-bit registers (e.g. AH | AL). The list of commands includes three commands: MOV, ADD and SUB. The processor allows the implementation of two addressing modes: register and instant, as well as the implementation of written programs in the full execution mode and in the step mode. In step mode, the sequence of instructions is tracked. In addition, it is possible to save to a file and then reload a previously written program for further editing and restarting.
The application is written in Python 3.10.9, using the Qt Framework (PySide2), in PyCharm 2023.1.2 Professional Edition.
In addition to the functions listed in the description, the application allows you to add comments using a semicolon (everything after the semicolon is ignored by the program) and enter in the register not only a decimal value, but also a binary value, ending the string of bits with the letter b (for example, 0001b). In addition, in case of overfilling or exceeding the range, the user is informed of this.
The instruction syntax is following:
MNEMONIC ARG1, ARG2 ; COMMENT
where the mnemonic code should be separated from the arguments by at least one space, and the arguments should be separated by a comma. Everything after semicolons is comments and is ignored by the program.
The interface includes:
- Contents of registers in bin and hex representation.
Clearbutton to clear the contents of the registers and reset the program counter.- A text box where you can edit the program.
Read programandSave programbuttons to load / write a program from / to a file.RunandStepbuttons to execute the program in full execution mode and in step mode.- A label where errors, informational messages, etc. are written.