IBM Assembly Language Processor

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IBM Assembly Language Processor
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Name ALP
Version 4.00.008 (2001)
Vendor IBM
Author Steve Turner
Licence IPLA
WWW
The Assembly Language Processor (ALP) is a macro assembler from IBM that offers a native mode and a MASM 5.1 compatible mode, and indeed intended to replace the Microsoft Assembler product for use on OS/2 systems especially for driver development. ALP was available in versions for OS/2 and AIX, versions with dates later than 1995 also support a subset of the MASM 6.x language.
ALP-icon.png

Features

ALP generates standard OMF files that can be linked to produce DOS or OS/2 executables. Symbolic debugging information is compatible with IBM's source code debuggers.

Version

  • 1.03.273 (May 1995)
  • 4.00.000 (1996) - IBM Developer Connection Vol. 11
  • 4.00.003
  • 4.00.004
  • 4.00.005 (Sep 1997) - IBM Developer's Toolkit for OS/2 Warp Version 4
    • Enhancements:
      • Additional MASM 6.00 constructs supported:
        • EXTERNDEF, UNION, and OPTION directives
        • LENGTHOF, SIZEOF, and OPATTR operators
        • BASIC, C, PASCAL, SYSCALL keywords on the COMM, EXTERN, PUBLIC, and PROC directives
        • EXPORT keyword as an argument to the PROC directive
        • Structure and union types can now be imbedded within other structure and union types
      • Support for true arrays
      • Support for the Pentium Pro instruction set
      • Improved symbolic debugging output
      • Improved online documentation
      • Fixes and compatibility enhancements
  • 4.00.008 (2001)
Prerequisites
  • OS/2 Warp
  • Link386 or compatible linker

Product Documentation

Related Article

Links

Add-ons
  • [ALP_MXG.ZIP] - By default the native mode on ALP is 32 bits only while the otherwise less capable MASM 5.1 emulation mode allows mixed 16/32 bit code. This patch allows you to use mixed 16/32 bit code in native ALP mode.
  • [masm2alp.zip] - Utility that converts MASM projects to ALP projects.