LC3 VM

This is a virtual machine that can run assembly programs fr the lc3 computer. The aim is to understand how VMs (like the Java Virtual Machine which runs Java, Kotlin, or Clojure programs) work and build our own simple VM.

Resourses

• Write your own virtual machine
• https://justinmeiners.github.io/lc3-vm/supplies/lc3-isa.pdf
• LC3-Simulator

16-bit Computer Emulator

This program is a 16-bit computer emulator that simulates the basic functionality of a computer, including:

• Memory: the program uses an array of 16-bit integers to simulate memory, with a maximum capacity of UINT16_MAX.

• Registers: the program uses an array of 16-bit integers to simulate registers. There are R_COUNT total registers, including the program counter (PC) and the condition register (COND).

• Opcodes: the program supports a variety of opcodes, such as ADD, LD, ST, JSR, AND, LDR, STR, RTI, NOT, LDI, STI, JMP, RES, LEA, and TRAP.

• Flags: the program uses the condition register (COND) to store flag information, including the positive (POS), zero (ZRO), and negative (NEG) flags.

• Traps: the program supports a variety of traps, such as GETC, OUT, PUTS, IN, PUTSP, and HALT.

• Keyboard input: the program uses the keyboard status register (KBSR) and the keyboard data register (KBDR) to handle keyboard input.

• Endianness: the program uses the swap16() function to handle endianness conversion.

• Sign extension: the program uses the sign_extend() function to handle sign extension.