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z/Reference

z/Reference

by Genie Software LLC

1 ratings
1 review
🔍 Reference

Archived App

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • October 30, 2013
  • April 1, 2022

Developer

Genie Software LLC
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About

This technical reference app provides quick access to information on IBM's z/Architecture, including detailed lists of instructions, condition codes, assembler elements, and interrupt types. It also covers PSW formatting, CNOP alignments, and printer control characters.

✓983 instructions sorted by name, mnemonic, and opcode
✓Instruction condition codes by type
✓Assembler instructions, system variables, and options
✓Interrupt types and categories
✓z/Architecture and ESA/390 PSW formatting
✓Printer control characters
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What's New in z/Reference

2.2.0

April 1, 2022

Updates for iOS 15 Minor changes to "Instruction Search"

User reviews

Most RecentHighest RatedLowest Rated

More instruction information please

Would be way more useful if you guys could provide expanded information on instructions etc...similar to the information in the “z/Architecture IBM Principles of Operation” also a search function to would be great. As it is now it’s more useful to download the POPS manual PDF document and use that. I know the market for this type of app is small so development costs vs return is a factor...but would love to see more if possible. I will still use it, so thanks for what you have...it’s good to see anything in the “z World”...so gave it 4 stars anyway 😊 P.S. - Same for the JCL app.
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zOS GuyzOS Guy

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FAQ

What is z/Reference?

z/Reference is a technical reference application designed for IBM's z/Architecture. It offers quick access to detailed information on instructions, assembler elements, interrupts, and more, mirroring content from the z/Architecture Reference Summary.

What kind of instructions does z/Reference list?

z/Reference lists 983 instructions, categorized by type such as general, control, decimal, and floating point. You can search these instructions by name, mnemonic, or opcode.

Does z/Reference cover assembler details?

Yes, z/Reference includes lists of assembler instructions by type (e.g., USING, DROP), assembler system variables (e.g., &SYSDATC), and assembler options (e.g., ADATA, ALIGN).

What information is available on interrupts?

The app provides lists of interrupt types and categories, including external, I/O, and program interrupts. It also details specific external interrupt types and program interrupt codes.

What devices is z/Reference available on?

z/Reference is available on iPhone, iPad, and iPod devices, indicated by its support for these platforms.

How often is z/Reference updated?

The latest version of z/Reference is 2.2.0, which was last updated on April 1, 2022. This indicates a relatively infrequent update cycle.

What is the age rating for z/Reference?

z/Reference has an age rating of 4+, making it suitable for a wide range of users.

Does z/Reference contain advertisements?

The provided data does not indicate the presence of advertisements. The app is listed as free and does not mention in-app purchases, suggesting a clean user experience.