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SPARC Assembly Language Reference Manual
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Document Information


1.  SPARC Assembler for SunOS 5.x

2.  Assembler Syntax

3.  Executable and Linking Format

3.1 ELF Header

3.2 Sections

3.2.1 Section Header

3.2.2 Predefined User Sections Creating an .init Section in an Object File Creating a .fini Section in an Object File

3.2.3 Predefined Non-User Sections

3.3 Locations

3.4 Addresses

3.5 Relocation Tables

3.6 Symbol Tables

3.7 String Tables

3.8 Assembler Directives

3.8.1 Section Control Directives

3.8.2 Symbol Attribute Directives

3.8.3 Assignment Directive

3.8.4 Data Generating Directives

4.  Converting Files to the New Format

5.  Instruction-Set Mapping

A.  Pseudo-Operations

B.  Examples of Pseudo-Operations

C.  Using the Assembler Command Line

D.  An Example Language Program

E.  SPARC-V9 Instruction Set


3.3 Locations

A location is a specific position within a section. Each location is identified by a section and a byte offset from the beginning of the section. The current location is the location within the current section where code is generated.

A location counter tracks the current offset within each section where code or data is being generated. When a section control directive (for example, the .section pseudo-op) is processed, the location information from the location counter associated with the new section is assigned to and stored with the name and value of the current location.

The current location is updated at the end of processing each statement, but can be updated during processing of data-generating assembler directives (for example, the .word pseudo-op).

Note - Each section has one location counter; if more than one section is present, only one location can be current at any time.