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公开(公告)号:AT155907T
公开(公告)日:1997-08-15
申请号:AT90305309
申请日:1990-05-16
Applicant: IBM
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公开(公告)号:IN177317B
公开(公告)日:1996-12-28
申请号:IN663DE1990
申请日:1990-06-29
Applicant: IBM
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公开(公告)号:DE68926851D1
公开(公告)日:1996-08-22
申请号:DE68926851
申请日:1989-12-13
Applicant: IBM
Inventor: CONCHA FERNANDO , LOFFREDO JOHN MARIO
Abstract: A microcode control apparatus utilizing program logic array circuits is described. A firmware structure containing a mainline programmable logic array circuit and at least one subroutine programmable logic array circuit may be used to provide for efficient use of computer microcodes. As the states of the mainline programmable logic array circuit are sequenced, the data bits representing the encode number field in its OR array are compared with the data bits representing the encode number field of the AND array of the subroutine programmable logic array circuit. If a match is made, the mainline programmable logic array circuit suspends its operation and sequencing of the subroutine programmable logic array circuit begins, in order to perform the function required. Upon completion of the function, control is automatically transferred from the subroutine programmable logic array circuit back to the mainline programmable logic array circuit, at the point where it was suspended. By nesting a plurality of subroutine programmable logic array circuits, a plurality of functions, many of which may be performed simultaneously, can take place.
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公开(公告)号:AU629337B2
公开(公告)日:1992-10-01
申请号:AU5487290
申请日:1990-05-09
Applicant: IBM
Inventor: SANDERSON KENNETH RUSSELL , LOFFREDO JOHN MARIO , JOYCE JAMES MAURICE , GRICE LONNIE EDWARD , DINWIDDIE JOHN MONROE JR , BAKER ERNEST DYSART
IPC: G06F15/16 , G06F9/46 , G06F11/00 , G06F11/16 , G06F11/20 , G06F12/02 , G06F13/368 , G06F15/177
Abstract: The functions of two virtual operating systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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公开(公告)号:IN186552B
公开(公告)日:2001-09-29
申请号:IN656DE1990
申请日:1990-06-27
Applicant: IBM
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公开(公告)号:DE69032631T2
公开(公告)日:1999-05-27
申请号:DE69032631
申请日:1990-05-16
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , GRICE LONNIE EDWARD , JOYCE JAMES MAURICE , LOFFREDO JOHN MARIO , SANDERSON KENNETH RUSSELL , BAKER ERNEST DYSART
Abstract: The functions of two virtual operating systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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公开(公告)号:DE69032611T2
公开(公告)日:1999-05-27
申请号:DE69032611
申请日:1990-05-16
Applicant: IBM
Inventor: BAKER ERNEST DYSART , DINWIDDIE JOHN MONROE , GRICE LONNIE EDWARD , JOYCE JAMES MAURICE , LOFFREDO JOHN MARIO , SANDERSON KENNETH RUSSELL
IPC: G06F15/16 , G06F9/46 , G06F11/00 , G06F11/16 , G06F11/20 , G06F12/02 , G06F13/368 , G06F15/177
Abstract: The functions of two virtual operating systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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公开(公告)号:DE69032631D1
公开(公告)日:1998-10-15
申请号:DE69032631
申请日:1990-05-16
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , GRICE LONNIE EDWARD , JOYCE JAMES MAURICE , LOFFREDO JOHN MARIO , SANDERSON KENNETH RUSSELL , BAKER ERNEST DYSART
Abstract: The functions of two virtual operating systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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公开(公告)号:DE69032608D1
公开(公告)日:1998-10-08
申请号:DE69032608
申请日:1990-05-16
Applicant: IBM
Inventor: DINWIDDIE JOHN MONROE , GRICE LONNIE EDWARD , JOYCE JAMES MAURICE , LOFFREDO JOHN MARIO , SANDERSON KENNETH RUSSELL , BAKER ERNEST DYSART
IPC: G06F15/16 , G06F9/46 , G06F15/17 , G06F15/173 , G06F15/177
Abstract: The functions of two virtual opening systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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公开(公告)号:DE69031815T2
公开(公告)日:1998-06-25
申请号:DE69031815
申请日:1990-05-16
Applicant: IBM
Inventor: FREEMAN BOBBY JOE , DINWIDDIE JOHN MONROE , GRICE LONNIE EDWARD , LOFFREDO JOHN MARIO , SANDERSON KENNETH RUSSELL , SUAREZ GUSTAVO ARMANDO
Abstract: The functions of two virtual operating systems (e.g. S/370 VM, VSE or IX370 and S/88 OS) are merged into one physical system. Partner pairs of S/88 processors run the S/88 OS and handle the fault tolerant and single system image aspects of the system. One or more partner pairs of S/370 processors are coupled to corresponding S/88 processors directly and through the S/88 bus. Each S/370 processor is allocated form 1 to 16 megabytes of contiguous storage from the S/88 main storage. Each S/370 virtual operating system thinks its memory allocation starts at address 0, and it manages its memory through normal S/370 dynamic memory allocation and paging techniques. The S/370 is limit checked to prevent the S/370 from accessing S/88 memory space. The S/88 Operating System is the master over all system hardware and I/O devices. The S/88 processors across the S/370 address space in direct response to a S/88 application program so that the S/88 may move I/O data into the S/370 I/O buffers and process the S/370 I/O operations. The S/88 and S/370 peer processor pairs to execute their respective Operating Systems in a single system environment without significant rewriting of either operating system. Neither operating system is aware of the other operating system nor the other processor pairs.
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