8051 Instruction Set

The 8051 Instruction Set User's Guide explains the standard 8051 instructions. The 8051 Instruction Set is supported by the Keil Ax51 Macro Assembler and the in-line Assembler of the Keil Cx51 Compiler.

This manual contains the following chapters.

• Opcodes provides a list of all opcodes ordered by opcode HEX value.
• Instructions describes all of the 8051 instructions.