lookup-tables.js

const C_BINARY = Object.freeze({
    '0': '101010',
    '1': '111111',
    '-1': '111010',
    'D': '001100',
    'A': '110000',
    '!D': '001101',
    '!A': '110001',
    '-D': '001111',
    '-A': '110011',
    'D+1': '011111',
    'A+1': '110111',
    'D-1': '001110',
    'A-1': '110010',
    'D+A': '000010',
    'D-A': '010011',
    'A-D': '000111',
    'D&A': '000000',
    'D|A': '010101',
});

const C_A_BINARY = Object.freeze({
    'M': '110000',
    '!M': '110001',
    '-M': '110011',
    'M+1': '110111',
    'M-1': '110010',
    'D+M': '000010',
    'D-M': '010011',
    'M-D': '000111',
    'D&M': '000000',
    'D|M': '010101',  
});

const JUMP_BINARY = Object.freeze({
    'null': '000',
    'JGT': '001',
    'JEQ': '010',
    'JGE': '011',
    'JLT': '100',
    'JNE': '101',
    'JLE': '110',
    'JMP': '111',
});

const DESTINATION_BINARY = Object.freeze({
    'null': '000',
    'M': '001',
    'D': '010',
    'MD': '011',
    'A': '100',
    'AM': '101',
    'AD': '110',
    'AMD': '111',
});

// { } Symbols: predefined, labels, variables
const SYMBOL_MEM_LOC = {
    'SP': 0,
    'LCL': 1,
    'ARG': 2,
    'THIS': 3,
    'THAT': 4,
    'R0': 0,
    'R1': 1,
    'R2': 2,
    'R3': 3,
    'R4': 4,
    'R5': 5,
    'R6': 6,
    'R7': 7,
    'R8': 8,
    'R9': 9,
    'R10': 10,
    'R11': 11,
    'R12': 12,
    'R13': 13,
    'R14': 14,
    'R15': 15,
    'SCREEN': 16384,
    'KBD': 24576,  
};

module.exports = { 
    C_A_BINARY,
    C_BINARY,
    JUMP_BINARY,
    DESTINATION_BINARY,
    SYMBOL_MEM_LOC,
};