LC2K-Assembler-and-Simulator

Assembler translates an LC-2K(Little Computer 2000) assembly-language program into machine language, and Simulator executes the converted machine code.

LC-2K Instruction-Set Architecture

The LC-2K is one of 32-bit RISC architectures which includes

• 8 x 32-bit registers: reg01 to reg7
• Each address is 32-bits and it stores a word
• 65536 words of memory (addressed by word index, not byte)

Project1

Project1 includes

• assembler

  • assembler.c: assembler source code
  • spec.as: An example LC-2K assembly file, that counts down from 5, stopping when it hits 0.
  • mult.as: An example LC-2K assembly file for multiplication.
  • Test cases that validates the assembler. The assembler catches the following errors in the assembly-language program.
    1. Use of undefined labels
    2. Duplicate definition of labels
    3. offsetFields that don’t fit in 16 bits
    4. Unrecognized opcodes
    5. Non-integer register arguments
    6. Registers outside the range [0, 7]

• simulator

  • simulator.c: simulator source code
  • Test cases that are short, valid assembly-language programs. (executing less than 40 instructions)

How to simulate

1. Under the assembler and simulator directory, run make.
2. Assemble the program into machine code.

assembler program.as program.mc

3. Serve the machine code as an input to simulator.

simulate program.mc > output