Stack-Simulator

Stack machine architecture designed in C, complete with its own Assembly language and four example programs.

How to use:

• Reads .msm assembly files, written using the instructions described below.
• Syntax: stack-simulator [-l] some_program.sms
  [-l]: print log to screen

Features:

• 16-bit word size
• 128 word stack
• 20 instructions, divided into six categories:
  • Arithmetic: (all operations performed with top of the stack preceding value below)
    'ADD' (addition),
    'SUB' (subtraction),
    'MUL' (multiplication),
    'DIV' (division),
    'POW' (power),
    'MOD' (modulus),
    'LN' (natural logarithm),
    'EXP' (exponential base e)
  • Logic:
    'NOT' (bitwise not operation),
    'OR' (bitwise or operation),
    'AND' (bitwise and operation),
    'MIR' (mirror bits in number)
  • Control:
    'PUSH' (push to stack),
    'POP' (pop from stack),
    'MOV' (move from register->memory or memory->register)
  • Branching:
    'JMP' (jump to label),
    'BZ' (branch to label if zero),
    'BNZ' (branch to label if not zero)
  • IO:
    'OUT' (print top of the stack)
  • Stack:
    'CLEAR' (clears the stack)
• Syntax/runtime error handling

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