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The ASxxxx assemblers are a series of microprocessor assem- blers written in the C programming language. Each assembler has a device specific section which includes: 1. device description, byte order, and file extension in- formation 2. a table of the assembler general directives, special device directives, assembler mnemonics and associated operation codes 3. machine specific code for processing the device mnemon- ics, addressing modes, and special directives The device specific information is detailed in the appendices. The assemblers have a common device independent section which handles the details of file input/output, symbol table genera- tion, program/data areas, expression analysis, and assembler directive processing. The assemblers provide the following features: 1. Command string control of assembly functions 2. Alphabetized, formatted symbol table listing 3. Relocatable object modules 4. Global symbols for linking object modules 5. Conditional assembly directives 6. Program sectioning directives ASxxxx assembles one or more source files into a single relo- catable ascii object file. The output of the ASxxxx assemblers consists of an ascii relocatable object file(*.rel), an assembly listing file(*.lst), and a symbol file(*.sym).
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Last Updated: January 2019