Multiple choice technology mainframe

Decimal instructions works with _____ operands

  1. Register Operands

  2. Storage Operands

  3. Implied Operands

  4. Immediate Operands

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In IBM z/Architecture (Mainframe) assembly, decimal instructions (such as AP, SP, ZAP) operate on Packed Decimal data. These instructions are 'SS' (Storage-to-Storage) format, meaning both operands reside in memory (storage) rather than registers. This allows for processing large numbers that exceed register sizes.