Bit Peek for Visual Studio Code

Bit Peek can display numbers in various forms (binary, hex, decimal, octal, and ASCII) with just a simple hover of your mouse cursor. The display is clean and easy to read. Extension is available on the Marketplace and Open VSX Registry, compatible with Visual Studio Code and Arduino IDE 2.x.

Features

Bit Peek could show bits in an unique "register friendly" mode: all the 0s will be displayed as ., so you can identify the 1s at a glance:

And it supports both LSB0 (Intel-style) and MSB0 (Motorola-style) bit numbering display:

For octal numbers, Bit Peek will interpret the bits as UNIX file permission when possible:

Bit Peek will try to identify the base of numbers automatically. But if you are analyzing memory dumps, try Bit Peek: Toggle force HEX mode command to enforce parsing as hexadecimals:

Supported Formats

Name	Example
C/C++	Hex: 0x1234, 0x1234U Oct: 0777 Dec: 1234, 1234UL
JavaScript	Number: same as C/C++ BigInt: 0x1234n, 0o777n, 0b1010n, 1234n
CSS	#RGB: #AABBCC
NASM	Hex: 0x1234, 0h1234, 1234h Oct: 0o777, 777o Bin: 0b1010, 1010b, 0b1100_1000 Dec: 0d1234, 1234d, 1234
Verilog	Hex: h1234, sh1234 Oct: o777, so777 Bin: b1010, sb1010, b0100_0000_0000 Dec: 1234, d1234, sd1234, 25_000_000

Customizations

The hover content is highly configurable to suit your needs. You can customize what information is displayed in the hover tooltip by changing the following settings:

• bit-peek.showBin: Show binary value.

  • bit-peek.registerView: Show bits in a "register-friendly" mode.
  • bit-peek.msb0: Use MSB0 bit numbering (Motorola-style).

• bit-peek.showHex: Show hexadecimal value.

  • bit-peek.showWidth: Show data bit width.

• bit-peek.showStr: Show ASCII characters.

  • showAsciiCode: Show ASCII code.

• bit-peek.showDec: Show decimal value.

  • bit-peek.showSize: Show as capacity (T/G/M/K).

• bit-peek.forceHex: Enable "Force HEX" mode.

Limitations

• For the decimal numbers without base prefix and postfix, it must not begin with 0, or it will be recognized as octal (C/C++ rule).
• In some languages (C/C++/JavaScript...), the sign of decimal numbers cannot be fetched due to the limitation of Visual Studio Code, so it cannot recognize negative numbers in such case.