@ark-us/evm2wasm/tests/opcode/byte.json

This is a JS protope of a EVM to eWASM transcompiler

[
  {
    "op": "BYTE",
    "value": "0x01",
    "description": "0x42ffffff[3]",
    "in": {
      "stack": [
        "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff42ffffff",
        "0x0000000000000000000000000000000000000000000000000000000000000003"
      ]
    },
    "out": {
      "stack": [
        "0x00000000000000000000000000000000000000000000000000000000000000ff"
      ]
    },
    "environment": {
      "callData": "0x00",
      "caller": "0x0000000000000000000000000000000000000000",
      "address": "0x0000000000000000000000000000000000000000",
      "coinbase": "0x0000000000000000000000000000000000000000"
    }
  },
  {
    "op": "BYTE",
    "value": "0x01",
    "description": "0x42ffffff[31]",
    "in": {
      "stack": [
        "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff42ffffff",
        "0x000000000000000000000000000000000000000000000000000000000000001f"
      ]
    },
    "out": {
      "stack": [
        "0x00000000000000000000000000000000000000000000000000000000000000ff"
      ]
    },
    "environment": {
      "callData": "0x00",
      "caller": "0x0000000000000000000000000000000000000000",
      "address": "0x0000000000000000000000000000000000000000",
      "coinbase": "0x0000000000000000000000000000000000000000"
    }
  },
  {
    "op": "BYTE",
    "value": "0x01",
    "description": "0x42ffffff[32]",
    "in": {
      "stack": [
        "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffff42ffffff",
        "0x0000000000000000000000000000000000000000000000000000000000000020"
      ]
    },
    "out": {
      "stack": [
        "0x0000000000000000000000000000000000000000000000000000000000000000"
      ]
    },
    "environment": {
      "callData": "0x00",
      "caller": "0x0000000000000000000000000000000000000000",
      "address": "0x0000000000000000000000000000000000000000",
      "coinbase": "0x0000000000000000000000000000000000000000"
    }
  }
]