 Ax51 User's Guide | |
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Ax51 User's Guide
Ax51 Introduction Assembling Programs Writing Assembly Programs Assembly Statements
Controls Instructions Comments Symbols and Symbol Names Labels Using Operands and Expressions Special Assembler Symbols Immediate Data Memory Access DATA BIT IDATA EDATA XDATA CODE Program Addresses Expressions and Operators Numbers Characters Character Strings Location Counter Operators ( ) * + - / < <= == > >= AND BYTEx EQ GT GTE HIGH LOW LT LTE MBYTE MOD NE NOT OR SHL SHR WORDx XOR Class Operators Expressions Expression Classes Relocatable Expressions Simple Relocatable Expressions Extended Relocatable Expressions Expressions Example Control Statements Macro Processor Error Messages AppendixWriting Assembly Programs
The Ax51 macro assembler is a multi pass assembler that translates x51 assembly language programs into object files. These object files are then combined or linked using the Lx51 Linker/Locator to form an executable, ready to run, absolute object module. As a subsequent step, absolute object modules can be converted to Intel HEX files suitable for loading onto to your target hardware, device programmer, or ICE (In Circuit Emulator) unit.
The following topics describe the components of an assembly program, and some aspects of writing assembly programs. An assembly program consists of one or more statements. These statements contain directives, controls, and instructions.
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