Disassembly View ARM (Thumb) Instruction Bytes are Backwards

Environment

• OS and version: Windows 11
• VS Code: 1.85.1
• C/C++ extension: 1.18.5
• OS and version of remote machine (if applicable):
• GDB / LLDB version: OpenOCD and arm-none-eabi-gdb.exe

Bug Summary and Steps to Reproduce

Bug Summary:

The bytes are backwards. LDR instruction should be 0x4B01.

Correct result in IAR:

Steps to reproduce:

1. Open Disassembly View
2. View Thumb Instruction (16-bit Word)

Debugger Configurations

tasks.json
{
  "version": "2.0.0",
  "tasks": [
    {
      "label": "Flash",
      "type": "shell",
      "command": "openocd",
      "args": [
        "-f",
        "interface/cmsis-dap.cfg",
        "-f",
        "target/rp2040.cfg",
        "-c",
        "adapter speed 5000; program {${command:cmake.launchTargetPath}} verify reset exit"
      ],
      "problemMatcher": []
    },
    {
      "label": "Build",
      "type": "cmake",
      "command": "build",
      "problemMatcher": "$gcc",
      "group": {
        "kind": "build",
        "isDefault": true
      }
    }
  ]
}

launch.json
{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "Pico Debug (Cortex-Debug)",
      "cwd": "${workspaceFolder}",
      "executable": "${command:cmake.launchTargetPath}",
      "request": "launch",
      "type": "cortex-debug",
      "servertype": "openocd",
      "gdbPath": "arm-none-eabi-gdb",
      "device": "RP2040",
      "configFiles": [
        "interface/cmsis-dap.cfg",
        "target/rp2040.cfg"
      ],
      "svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
      "runToEntryPoint": "main",
      "openOCDLaunchCommands": [
        "adapter speed 5000"
      ]
    },
    {
      "name": "Pico Debug (Cortex-Debug with external OpenOCD)",
      "cwd": "${workspaceFolder}",
      "executable": "${command:cmake.launchTargetPath}",
      "request": "launch",
      "type": "cortex-debug",
      "servertype": "external",
      "gdbTarget": "localhost:3333",
      "gdbPath": "arm-none-eabi-gdb",
      "device": "RP2040",
      "svdFile": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd",
      "runToEntryPoint": "main"
    },
    {
      "name": "Pico Debug (C++ Debugger)",
      "type": "cppdbg",
      "request": "launch",
      "cwd": "${workspaceFolder}",
      "program": "${command:cmake.launchTargetPath}",
      "MIMode": "gdb",
      "miDebuggerPath": "arm-none-eabi-gdb",
      "miDebuggerServerAddress": "localhost:3333",
      "debugServerPath": "openocd",
      "debugServerArgs": "-f interface/cmsis-dap.cfg -f target/rp2040.cfg -c \"adapter speed 5000\"",
      "serverStarted": "Listening on port .* for gdb connections",
      "filterStderr": true,
      "stopAtEntry": true,
      "hardwareBreakpoints": {
        "require": true,
        "limit": 4
      },
      "preLaunchTask": "Flash",
      "svdPath": "${env:PICO_SDK_PATH}/src/rp2040/hardware_regs/rp2040.svd"
    }
  ]
}

Debugger Logs

None

Other Extensions

No response

Additional Information

No response

Start by reproducing the issue in the Disassembly View with the provided ARM Thumb setup, using the tasks.json and launch.json configurations and the 16-bit LDR example. Trace how the instruction bytes are displayed and verify that the displayed word matches the expected 0x4B01 ordering.