instructions.ts

export type Instruction = {
  name: InstructionName;
  key: number;
  mask: number;
  pattern: number;
  arguments: Array<{ mask: number; shift: number }>;
};

export enum InstructionName {
  CLS = "CLS",
  RET = "RET",
  JMP_ADDR = "JMP_ADDR",
  CALL_ADDR = "CALL_ADDR",
  SE_VX_NN = "SE_VX_NN",
  SNE_VX_NN = "SNE_VX_NN",
  SE_VX_VY = "SE_VX_VY",
  LD_VX_NN = "LD_VX_NN",
  ADD_VX_NN = "ADD_VX_NN",
  LD_VX_VY = "LD_VX_VY",
  OR_VX_VY = "OR_VX_VY",
  AND_VX_VY = "AND_VX_VY",
  XOR_VX_VY = "XOR_VX_VY",
  ADD_VX_VY = "ADD_VX_VY",
  SUB_VX_VY = "SUB_VX_VY",
  SHR_VX_VY = "SHR_VX_VY",
  SUBN_VX_VY = "SUBN_VX_VY",
  SHL_VX_VY = "SHL_VX_VY",
  SNE_VX_VY = "SNE_VX_VY",
  LD_I_ADDR = "LD_I_ADDR",
  JP_V0_ADDR = "JP_V0_ADDR",
  RND_VX_NN = "RND_VX_NN",
  DRW_VX_VY_NIB = "DRW_VX_VY_NIB",
  SKP_VX = "SKP_VX",
  SKNP_VX = "SKNP_VX",
  LD_VX_DT = "LD_VX_DT",
  LD_VX_N = "LD_VX_N",
  LD_DT_VX = "LD_DT_VX",
  LD_ST_VX = "LD_ST_VX",
  ADD_I_VX = "ADD_I_VX",
  LD_F_VX = "LD_F_VX",
  LD_B_VX = "LD_B_VX",
  LD_I_VX = "LD_I_VX",
  LD_VX_I = "LD_VX_I",
}

const instructions: Instruction[] = [
  {
    name: InstructionName.CLS,
    key: 2,
    mask: 0xffff,
    pattern: 0x00e0,
    arguments: [],
  },
  {
    name: InstructionName.RET,
    key: 3,
    mask: 0xffff,
    pattern: 0x00ee,
    arguments: [],
  },
  {
    name: InstructionName.JMP_ADDR,
    key: 4,
    mask: 0xf000,
    pattern: 0x1000,
    arguments: [{ mask: 0x0fff, shift: 0 }],
  },
  {
    name: InstructionName.CALL_ADDR,
    key: 5,
    mask: 0xf000,
    pattern: 0x2000,
    arguments: [{ mask: 0x0fff, shift: 0 }],
  },
  {
    name: InstructionName.SE_VX_NN,
    key: 6,
    mask: 0xf000,
    pattern: 0x3000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00ff, shift: 0 },
    ],
  },
  {
    name: InstructionName.SNE_VX_NN,
    key: 7,
    mask: 0xf000,
    pattern: 0x4000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00ff, shift: 0 },
    ],
  },
  {
    name: InstructionName.SE_VX_VY,
    key: 8,
    mask: 0xf00f,
    pattern: 0x5000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.LD_VX_NN,
    key: 9,
    mask: 0xf000,
    pattern: 0x6000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00ff, shift: 0 },
    ],
  },
  {
    name: InstructionName.ADD_VX_NN,
    key: 10,
    mask: 0xf000,
    pattern: 0x7000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00ff, shift: 0 },
    ],
  },
  {
    name: InstructionName.LD_VX_VY,
    key: 11,
    mask: 0xf00f,
    pattern: 0x8000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.OR_VX_VY,
    key: 12,
    mask: 0xf00f,
    pattern: 0x8001,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.AND_VX_VY,
    key: 13,
    mask: 0xf00f,
    pattern: 0x8002,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.XOR_VX_VY,
    key: 14,
    mask: 0xf00f,
    pattern: 0x8003,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.ADD_VX_VY,
    key: 15,
    mask: 0xf00f,
    pattern: 0x8004,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.SUB_VX_VY,
    key: 16,
    mask: 0xf00f,
    pattern: 0x8005,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.SHR_VX_VY,
    key: 17,
    mask: 0xf00f,
    pattern: 0x8006,
    arguments: [{ mask: 0x0f00, shift: 8 }, { mask: 0x00f0, shift: 4 }],
  },
  {
    name: InstructionName.SUBN_VX_VY,
    key: 18,
    mask: 0xf00f,
    pattern: 0x8007,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.SHL_VX_VY,
    key: 19,
    mask: 0xf00f,
    pattern: 0x800e,
    arguments: [{ mask: 0x0f00, shift: 8 }, { mask: 0x00f0, shift: 4 }],
  },
  {
    name: InstructionName.SNE_VX_VY,
    key: 20,
    mask: 0xf00f,
    pattern: 0x9000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
    ],
  },
  {
    name: InstructionName.LD_I_ADDR,
    key: 21,
    mask: 0xf000,
    pattern: 0xa000,
    arguments: [{ mask: 0x0fff, shift: 0 }],
  },
  {
    name: InstructionName.JP_V0_ADDR,
    key: 22,
    mask: 0xf000,
    pattern: 0xb000,
    arguments: [{ mask: 0x0fff, shift: 0 }],
  },
  {
    name: InstructionName.RND_VX_NN,
    key: 23,
    mask: 0xf000,
    pattern: 0xc000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00ff, shift: 0 },
    ],
  },
  {
    name: InstructionName.DRW_VX_VY_NIB,
    key: 24,
    mask: 0xf000,
    pattern: 0xd000,
    arguments: [
      { mask: 0x0f00, shift: 8 },
      { mask: 0x00f0, shift: 4 },
      { mask: 0x000f, shift: 0 },
    ],
  },
  {
    name: InstructionName.SKP_VX,
    key: 25,
    mask: 0xf0ff,
    pattern: 0xe09e,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.SKNP_VX,
    key: 26,
    mask: 0xf0ff,
    pattern: 0xe0a1,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_VX_DT,
    key: 27,
    mask: 0xf0ff,
    pattern: 0xf007,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_VX_N,
    key: 28,
    mask: 0xf0ff,
    pattern: 0xf00a,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_DT_VX,
    key: 29,
    mask: 0xf0ff,
    pattern: 0xf015,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_ST_VX,
    key: 30,
    mask: 0xf0ff,
    pattern: 0xf018,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.ADD_I_VX,
    key: 31,
    mask: 0xf0ff,
    pattern: 0xf01e,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_F_VX,
    key: 32,
    mask: 0xf0ff,
    pattern: 0xf029,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_B_VX,
    key: 33,
    mask: 0xf0ff,
    pattern: 0xf033,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_I_VX,
    key: 34,
    mask: 0xf0ff,
    pattern: 0xf055,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
  {
    name: InstructionName.LD_VX_I,
    key: 35,
    mask: 0xf0ff,
    pattern: 0xf065,
    arguments: [{ mask: 0x0f00, shift: 8 }],
  },
];

export default instructions;