z/Architecture Overview

• Prefix page now 8KB

• LOTS of new instructions

  • 64 bit versions of 32 bit ops: LG (load) = L (load)
  • Instructions to manipulate 32 bit entities: LGFR
  • Some new compiler-friendly: RLL/RLLG; ALC/ALCG
  • Address mode related: SAM24/31/64; TAM
  • Unicode support: CUUTF; TRE **
  • Enhanced relative branching: +/- 2GB branches

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