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The TIMI instructions are stored within the final program object, in addition to the executable machine instructions.
While IBM i, AIX, Linux and Lotus Domino are supported on the POWER processors, Windows is supported with either single-processor internal blade servers (IXS) or externally linked multiple-processor servers (IXA and i SCSI).The original AS/400 CISC models used the same 48-bit address space as the S/38.The address space was expanded in 1995 when ith the RISC Power PC RS64 64-bit CPU processor replaced the 48-bit CISC processor.Realizing the importance of compatibility with the thousands of programs written in legacy code, IBM launched the AS/400 midrange computer line in 1988.AS stands for "Application System." Great effort was made during development of the AS/400 to enable programs written for the System/34 and System/36 to be moved to the AS/400.An application saved from the older 48-bit platform can simply be restored onto the new 64-bit platform where the operating system discards the old machine instructions and re-translates the TIMI instructions into 64-bit instructions for the new processor.
The system's instruction set defines all pointers as 128-bit.
The predecessor to AS/400, IBM System/38, was first made available in August 1979 and was marketed as a minicomputer for general business and departmental use.
It was sold alongside other product lines, each with a different architecture (System/3, System/32, System/34, System/36).
The IBM System i is IBM's previous generation of midrange computer systems for IBM i users, and was subsequently replaced by the IBM Power Systems in April 2008.
The platform was first introduced as the AS/400 (Application System/400) on June 21, 1988 and later renamed to the e Server i Series in 2000.
For 64-bit Power PC processors, the virtual address resides in the rightmost 64 bits of a pointer while it was 48 bits in the S/38 and CISC AS/400.