Debug Faster. Solve Sooner.

Time-Consuming & Tedious Traditional debugging means adding diagnostic statements, recompiling, rerunning tests, and manually tracing through hex dumps just to understand what's happening in your code. Days can be lost to problems that should take hours to solve.

No More Blind Debugging.

Error-Prone & Risky Without visibility into live program execution, you're forced to make assumptions based on incomplete information. Critical bugs slip through to production because you can't see what's actually happening at runtime.

Make ad hoc changes and perform "what if" scenarios instantly. Fix issues and verify corrections without recompiling, saving hours or days in debugging cycles.

Dramatically reduce debugging time from days to hours. Test theories immediately without lengthy recompile cycles.

What You Can Do:

• Step through code line-by-line in real-time
• Change code on the fly to test variations
• Flip flags, modify data fields, and alter register values
• Control your program's PSW
• Load and delete modules
• Issue GETMAINs and FREEMAINs
• Post Event Control Blocks

Understand complex code behavior without mental translation from hex dumps. See what's actually executing in a format you can immediately understand.

Faster problem diagnosis, especially critical for onboarding new developers who can see code execution visually rather than memorizing system internals.

Z/XDC includes an ADATA filtering tool that can reduce ADATA library size up to 90%!

What You Can Do:

• View your code exactly as you wrote it
• Automatically loads source image maps from ADATA
• See formatted Assembler code with labels and original comments
• Work with disassembled object code when needed
• Navigate seamlessly between source and compiled code

No more manual cross-referencing between dumps and documentation. Control blocks are presented in readable, formatted displays that help you understand complex system interactions immediately.

Reduce time spent deciphering system structures. Enable less experienced developers to work with complex system code effectively.

What You Can Do:

• Pre-formatted maps for over 1,300 z/OS system control blocks
• Create DSECT maps for your own control blocks (trivially easy)
• Build floating structures that dynamically adjust to instances
• Uses ADATA, SYM, and/or ESD data for LinkedIt/Binder maps, CSECT maps, and DSECT maps
• View control blocks formatted, labeled, and commented field by field

Modern mainframe applications use increasingly complex memory management. Z/XDC gives you visibility regardless of architectural complexity.

Supercharge your developer’s capabilities and improve time-to-market delivery.

What You Can Do:

• SRB Mode Debugging: As IBM creates more SRB-only system interfaces, interactive debugging becomes increasingly valuable. Z/XDC handles SRB mode debugging seamlessly.
• PC Routine Debugging: Debug any PC routine, public or private, authorized or problem state, cross-memory or not. Z/XDC handles them all.
• Cross Memory Mode Debugging: Extensive capabilities for debugging code with Primary, Secondary, and Home address spaces being the same or different in any conceivable way. Full support for above-the-bar storage and data spaces.

Reproduce intermittent bugs by stopping only when specific conditions align. Automate debugging workflows to save hours on recurring issues.

Debug race conditions and timing-sensitive issues that are nearly impossible to catch with traditional methods.

What You Can Do:

• Set breakpoints based on variable values or program state
• Skip irrelevant code paths and focus on specific scenarios
• Automate repetitive debugging tasks
• Create scripts that reproduce complex scenarios