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8051/8052 Assembly Language Support

This extension provides 8051/8052 assembly language support for Visual Studio Code

Syntax Highlighting

• Support highlighting comments that start with a semicolon (;)
• Support double quotation mark (") string highlighting, which can distinguish escape characters
• Support highlighting numbers in various bases
  • Hexadecimal does not distinguish between upper and lower case
  • Binary numbers are case-insensitive and support segmentation with underscores (_), i.e., 0b1010_0101
  • The decimal system specifically avoids numbers ending with a dollar sign ($), which is commonly used as a local jump label
  • A single character enclosed in single quotation marks (') is also treated as a number
• Support highlighting of 8051 assembly language mnemonics
• Support highlighting of commonly used basic built-in registers
  • Only supports A, ACC, AB, B, C, DPH, DPL, DPTR, PSW, SP, R0~R7 and AR0~AR7
• Support highlighting of common general-purpose assembly directives
  • Supports data definitions of directives such as .org, .db, .dw, .ds, .equ, .set, .end, .include, etc
  • Support conditional compilation directives such as .if....else....endif, etc
  • Support macro definition directives such as macro...endm, etc
  • Supports repeated iterative directives such as rept...endr, irp, irpc, etc.
• Support for highlighting SDCC proprietary assembly directives
  • Including segments, symbol declaration directives such as .module, .area, .globl, etc
  • Flow control extension directives such as iff, ift, iftf, iftf, ifxx, etc
  • All directives are referenced from https://svn.code.sf.net/p/sdcc/code/trunk/sdcc/sdas/doc/asmlnk.txt and will not be listed individually
• Support for highlighting Keil proprietary assembly directives