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Crossware 8051 Assembler Datasheet Crossware 8051 Assembler Datasheet

Go to 8051 Development Suite order page

TECHNICAL DETAILS

RELOCATABLE 8051 MACRO CROSS ASSEMBLER

The cross assembler converts 8051 assembler code into an intermediate object module format which is subsequently linked with other intermediate object modules to create the final program. Features include:

  • High speed assembly to create relocatable object module
  • Intel 8051 standard segment directives
  • Intel 8051 standard mnemonics
  • Nestable macros with full argument passing
  • Nestable conditional assembly
  • Comprehensive range of assembler directives and pseudo ops (see below)
  • Complex expression evaluation with Intel 8051 standard operators
  • Upper and lower case labels with up to 255 significant characters
  • Upper and lower case opcode mnemonics
  • Upper and lower case macro names with up to 255 significant characters
  • Comprehensive error checking with descriptive error messages
  • Debug output of symbolic information
  • User definable listing format

RELOCATING LINKER

The linker combines object modules created with the compiler and/or the assembler to create the final code that will run on your target system. It carries out the following functions:

  • scans each module to collect segment and variable information
  • arranges and positions segments at appropriate memory locations to suit the memory organisation of the target system and any specific location information supplied by the user
  • finalises the values of all variables and calculates the results of any incomplete expressions
  • extracts and relocates the code from each module to produce the final target program

The target program can be produced in a number of different formats including Intel hex, Intel OMF51, Motorola S records, HP/Microtec IEEE695 format or as a binary rom image.

An optional link map will show the final location and sizes of all segments and the values of all global variables.

DEBUG OUTPUT

The assembler can optionally generate full source level debug information. The linker updates these debug records to take account of the final location of the target program and outputs them to the target program file in IEEE695 format. Debuggers and in-circuit emulators that support this popular format can then use it to facilitate full source level debugging.

LIBRARY MANAGER

Instead of being used to create a final target program, the object modules produced by the compiler and assembler can be integrated into a library. The library manager performs the tasks of:

  • combining object modules into a library
  • adding modules to an existing library
  • removing or extracting modules from an existing library
  • listing the contents of a library

MAKE UTILITY

The MAKE utility simplifies the task of keeping object files, libraries and target programs up-to-date. It detects if any source or dependency files have changed since the last build and runs the appropriate tools (compiler, assembler, linker or library manager) to rebuild out-of-date files. It supports many advanced features including macros, inference rules, conditional inclusion and other preprocessing directives and in-line files with automatic temporary file creation.

Although the Embedded Development Studio uses its own integrated routines to keep projects up-to-date, this stand-alone MAKE utility can be used to build projects from the command-line or from within another application. The Embedded Development Studio will automatically create a makefile which is fully compatible with this stand-alone MAKE utility.

HOST SYSTEM REQUIREMENTS

IBM compatible PC with an Intel Pentium-class CPU or above running Windows 9x, Windows NT 4.0, Windows 2000 or Windows XP.

The following assembler directives and pseudo-ops are available:

8051, dw, ifinc, name, opt, ttl,
8052, end, ifnc, noclist, org, una,
bit, endc, include, nolist, page, using,
bseg, endm, iseg, nomc, page, xseg,
clist, equ, list, nomd, pagewidth,  
cseg, extrn, listf, nomex, public,  
data, fail, macr, nomod51, rseg,  
db, fields, mc, noobj, segment,  
dbit, ifc, md, nopage, set,  
ds, ifcc, mex, nouna, spc,  
dseg, ific, mod51, obj, sym,  

Go to 8051 Development Suite order page


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