README.md

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VSCode 8051/8052 Assembly Language Support

Syntax highlighting and IntelliSense for 8051/8052 assembly language in Visual Studio Code.

Syntax Highlighting

• Comments starting with semicolon (;)
• Double quotation mark (") strings (with escape character recognition)
• Numbers in various bases
  • Hexadecimal (case-insensitive)
  • Binary numbers are case-insensitive and support segmentation with underscores (_), i.e., 0b1010_0101
  • Decimal excludes numbers ending with $ (reserved for inside jump labels)
  • A single character enclosed in single quotation marks (') is also treated as a number
• 8051/8052 assembly language mnemonics
• Common built-in registers:
  • Only supports A, ACC, AB, B, C, DPH, DPL, DPTR, PSW, SP, R0R7 and AR0AR7
• Common assembly directives:
  • Data definition: .org, .db, .dw, .ds, .equ, .set, .end, .include, etc.
  • Conditional compilation: .if....else....endif, etc.
  • Macro definition: macro...endm, etc.
  • Repetitive iteration: rept...endr, irp, irpc, etc.
• SDCC proprietary assembly directives:
  • Segments and symbol declaration: .module, .area, .globl, etc.
  • Flow control extensions: iff, ift, iftf, ifxx, etc.
  • Full directive reference: asmlnk.txt
• Keil proprietary assembly directives

Installation

From Marketplace

1. Open Visual Studio Code
2. Press Ctrl+Shift+X (or Cmd+Shift+X on Mac) to open Extensions view
3. Search for "8052 Assembly" or "asm8052"
4. Click Install

From VSIX File

1. Download the .vsix file from Releases
2. Open Visual Studio Code
3. Press Ctrl+Shift+P (or Cmd+Shift+P on Mac) to open Command Palette
4. Type "Extensions: Install from VSIX..." and select it
5. Choose the downloaded .vsix file

License

Licensed under the Apache License 2.0.