i8085

Lexer, Parser, Assembler, and Processor for Intel 8085 implemented in TypeScript.

Example

Sample Code:

import { Lexer } from 'i8085/lexer';
import { Parser } from 'i8085/parser';
import { Assembler } from 'i8085/assembler';

const code = `
MVI B, 10H
HLT
`;

const lexer = new Lexer(code);
const tokens = lexer.tokenize();
console.log(tokens);

const parser = new Parser(tokens);
const ast = parser.parse();
console.dir(ast, { depth: 10 });

const assembler = new Assembler(ast);
console.dir(assembler.assemble(), { depth: 10 });

Output:

[
  { col: 1, line: 1, printValue: '\n', type: 'Newline', value: '\n' },
  { col: 1, line: 2, printValue: 'MVI', type: 'Opcode', value: 'MVI' },
  { col: 5, line: 2, printValue: 'B', type: 'Register', value: 'B' },
  { col: 6, line: 2, printValue: ',', type: 'Comma', value: ',' },
  {
    base: 'Hex',
    col: 8,
    line: 2,
    printValue: '10H',
    type: 'Number',
    value: '10H'
  },
  { col: 11, line: 2, printValue: '\n', type: 'Newline', value: '\n' },
  { col: 1, line: 3, printValue: 'HLT', type: 'Opcode', value: 'HLT' },
  { col: 4, line: 3, printValue: '\n', type: 'Newline', value: '\n' },
  { col: 1, line: 4, printValue: '', type: 'EOF', value: '' }
]

{
  program: [
    {
      instruction: {
        label: null,
        opcode: {
          col: 1,
          line: 2,
          printValue: 'MVI',
          type: 'Opcode',
          value: 'MVI'
        },
        operandsPattern: 'Reg_Byte',
        operandOne: {
          col: 5,
          line: 2,
          printValue: 'B',
          type: 'Register',
          value: 'B'
        },
        operandTwo: {
          base: 'Hex',
          col: 8,
          line: 2,
          printValue: '10H',
          type: 'Number',
          value: '10H'
        }
      },
      type: 'Instruction'
    },
    {
      instruction: {
        label: null,
        opcode: {
          col: 1,
          line: 3,
          printValue: 'HLT',
          type: 'Opcode',
          value: 'HLT'
        },
        operand: null,
        operandsPattern: 'None'
      },
      type: 'Instruction'
    }
  ]
}

Map(3) { '0003' => '06', '0004' => '10', '0005' => '76' }