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What architectural features are implemented?

April 26, 2017architectural features implemented

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What architectural features are implemented?

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The following standard features have been implemented: • Address-Limit Checking • Commercial Instruction Set • Decimal Instructions • Hexadecimal Floating-Point Instructions • 24-bit and 31-bit addressing • Key-Controlled Protection • Page Protection • Low-Address Protection • Dynamic Address Translation • 370-XA Channel Subsystem • Channel Indirect Data Addressing • Program Controlled Interruption (PCI) • Channel Program Suspend/Resume • Dual Address Space (ESA/390 only, for now) • Access Register Mode • Home Space Mode • Branch and Save • Conditional Swapping • TOD Clock, Clock Comparator, and CPU Timer • MVCS/MVCP/MVCK/MVCSK/MVCDK instructions • TB/TPROT instructions • LURA/STURA instructions • BAKR/PC/PR/PT instructions • Linkage Stack • Compare and Form Codeword and Update Tree instructions The following optional features have been implemented: • Access-List-Controlled Protection • Branch and Set Authority • Broadcasted Purging • Checksum instruction • Compare and Move Extended in