Links to Programming Resources

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In no particular order, here are some links to other web sites or resources in the general area of computer programming. They are oriented primarily towards COBOL and IBM Mainframe subjects, but not limited exclusively to those areas. There are also links to C/C++, Visual Basic, X86 Assembler, Linux, REXX, ISPF, text editors, and TN3270 Terminal Emulators. New links have been added for free GnuCOBOL compilers for Windows (Windows XP, Vista, Win7, 8.1, and Windows 10).

This page was last updated on Sat-16-Mar-2024.

I am now able to serve .zip files. For anyone interested, here is a version of the Unix CAL.EXE calendar utility, reimplemented in PowerBasic as CAL.EXE for 32-bit or 64-bit Windows XP, Windows Vista, Windows 7, Windows 8/8.1, or Windows 10.

CAL.ZIP for Windows XP and Windows 7

I also have a HEXDUMP.EXE command line utility for viewing a windows file in hexadecimal and ASCII. It is also written in PowerBasic for 32-bit or 64-bit Windows XP or higher.

HEXDUMP.ZIP for Windows XP and higher

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GnuCOBOL/OpenCOBOL Resources

• GnuCOBOL - a GNU Project

• Savannah - GnuCOBOL (formerly OpenCOBOL) - Summary
• GnuCOBOL (formerly OpenCOBOL) on SourceForge, a free and open source COBOL compiler
• GnuCOBOL FAQ (Frequently Asked Questions)
• My GnuCOBOL/OpenCOBOL Links, including download binaries
• OpenCobolIDE, Interactive Development Environment for OpenCOBOL/GnuCOBOL, written in Python for Linux, Windows, and Mac OSX. The Windows installer includes MinGW GnuCOBOL 2.0 RC2 with the IDE.
• Eliza in COBOL on Sourceforge
• Eliza Setup file for Windows, rename ".7z" to ".exe"
• Chuck Haatvedt's Manual on getting started with GnuCOBOL and IBM DB2 for Windows
• Jay Mosely's GnuCOBOL page with sample programs
• Gary Van Winkle - GnuCOBOL Programming Resources (Updated 17 June 2022)
• Medium.com - Installing GnuCOBOL 3.1 on Windows

COBOL Programming Resources

• COBOLWORX - FOSS Cloud Native COBOL
• COBOL Tutorial : Learn COBOL in One Video
• The Cobol Connection (examples and reference material)
• The Flexus COBOL Page
• Runtime Efficiency in COBOL - Arnold Trembley
• Table Sorting in COBOL, by Leif Svalgaard
• COBOL Easy Tool KIT (ETKPAK.ZIP, 116K bytes)
• Sample program, convert OS/VS COBOL to COBOL II and align source code
• (UPDATED) UT06 compiler written in ICL COBOL, sample program
• Department of CSIS - COBOL Resources
• Norcom Software

Compilers & Interpreters for PC's

• Developer City - Free compilers, interpreters, and programming tools
• freebyte.com - Free compilers, interpreters, and programming tools
• Programmers Heaven - Free compilers, interpreters, and programming tools
• Fujitsu Software Corporation - Fujitsu COBOL
• RexxInfo.ORG - with REXX for Windows and other platforms
• MSYS2 - GNU/GCC Software Distribution and Building Platform for Windows
• MinGW (Minimalist GNU for Windows) on OSDN.NET
• DJGPP, a complete 32-bit C/C++ system for DOS (Intel 80386)
• A86 Assembler and D86 Debugger (Shareware)
• REBOL for Internet Communications

IBM z/OS Mainframe Programming Resources

• IBM Redbooks
• IBM Bookshelves online
• IBM Mainframe Forum, Manuals, Programs and download
• CBT Tape (Freeware for IBM MVS)
• SNOBOL4 and SPITBOL Information
• www.dignus.com - Systems/C Compiler for OS/390 and CMS
• PlanetMVS.com - David Alcock
• Jay Moseley's webpage on the Hercules IBM S/370 and ESA/390 Emulator

Gnu/LINUX on the IBM Mainframe

• Official IBM Linux/390 web page
• S/390: Linux Dream Machine
• Linux on the IBM ESA/390 Mainframe Architecture

ISPF and REXX

• The REXX Language - Mike Cowlishaw
• Mark Zelden's MVS Utilities and REXX Macros
• Quercus Systems - Personal REXX for the PC
• uniSPF - ISPF clone for Unix

Text Editors for the PC

• SPFLite for Windows (freeware)
• SPF SE 365, Github SPF/SE editor for Windows
• Kedit (XEDIT for the Personal Computer) Mansfield Software Group
• THE - The Hessling Editor, XEDIT clone for DOS, Win32, and Un*x
• Notepad++ free text editor for Windows
• Hybrid Editor XE - SPF clone for Windows, DOS, and Linux
• Slickedit
• VEdit
• The SEMWARE Editor (formerly QEdit)
• PFE - Programmer's File Editor (Windows, 16-bit & 32-bit versions)

TN3270 Terminal Emulators using TCP/IP

• QWS3270 - Jolly Giant Software (my personal favorite)
• Vista TN3270 Terminal Emulator
• SDI TN3270 Terminal Emulator (also supports 5250)
• Dave's TN3270 Page at PlanetMVS
• ERICOM Software - Powerterm, Legacy Integration, Web Enablement

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E-mail: arnold.trembley@att.net