| III. The ASEM-51 Assembly Language The user should be familiar with 8051 microcontrollers and assembly language programming. This manual will not explain the architecture of the MCS-51 microcontroller family nor will it discuss the basic concepts of assembly language programming. It only describes the general syntax of assembler statements and the assembler instructions that have been implemented in ASEM-51. Statements Symbols Constants Expressions The 8051 Instruction Set Pseudo Instructions Segment Type Assembler Controls Predefined Symbols Conditional Assembly Macro Processing