IBM System/370-XA is an instruction set architecture announced by IBM on October 21, 1981 for the IBM 308X processors and available in April 1983. It extends the IBM System/370 architecture to support 31-bit virtual and physical addresses, and includes a redesigned I/O architecture.
IBM System/370-XA is an instruction set architecture announced by IBM on October 21, 1981 for the IBM 308X processors and available in April 1983. It extends the IBM System/370 architecture to support 31-bit virtual and physical addresses, and includes a redesigned I/O architecture.
Source: Wikipedia "IBM System/370-XA" · CC BY-SA 4.0
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