公开(公告)号：GB2202657A

公开(公告)日：1988-09-28

申请号：GB8728922

申请日：1987-12-10

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：IN172601B

公开(公告)日：1993-10-23

申请号：IN180DE1988

申请日：1988-03-09

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  LIVERMAN ROBERT BRITTON ,  KRANTZ JEFFREY IASAC ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F12/00 ,  G06F15/00

公开(公告)号：AT91812T

公开(公告)日：1993-08-15

申请号：AT87118538

申请日：1987-12-15

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：DE69227939D1

公开(公告)日：1999-02-04

申请号：DE69227939

申请日：1992-03-16

Applicant: IBM

Inventor： RAWSON III FREEMAN LEIGH ,  SOTOMAYOR GUY GIL ,  TUGGLE EDWARD MITCHELL

IPC: G06F13/10 ,  G06F13/38 ,  G06F3/06

Abstract: A device driver system comprises a core that manages the specific functions of a plurality of I/O devices. The core includes an operating system interface that is generic to different operating systems. An operating system has a device driver interface that is unique to the operating system. A conversion program is layered between the core and the operating system for converting communications between the device driver interface of the operating system and the generic operating system interface of the core. The core includes a channel manager including a request dispatcher, request queues, a command initiator, and a plurality of state machines corresponding to state machine in the I/O devices. A transport layer interfaces between the hardware and the channel manager.

公开(公告)号：DE3786660D1

公开(公告)日：1993-08-26

申请号：DE3786660

申请日：1987-12-15

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：DE69227939T2

公开(公告)日：1999-07-29

申请号：DE69227939

申请日：1992-03-16

Applicant: IBM

Inventor： RAWSON III FREEMAN LEIGH ,  SOTOMAYOR GUY GIL ,  TUGGLE EDWARD MITCHELL

IPC: G06F13/10 ,  G06F13/38 ,  G06F3/06

Abstract: A device driver system comprises a core that manages the specific functions of a plurality of I/O devices. The core includes an operating system interface that is generic to different operating systems. An operating system has a device driver interface that is unique to the operating system. A conversion program is layered between the core and the operating system for converting communications between the device driver interface of the operating system and the generic operating system interface of the core. The core includes a channel manager including a request dispatcher, request queues, a command initiator, and a plurality of state machines corresponding to state machine in the I/O devices. A transport layer interfaces between the hardware and the channel manager.

公开(公告)号：HK33992A

公开(公告)日：1992-05-15

申请号：HK33992

申请日：1992-05-07

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：DE3786660T2

公开(公告)日：1994-02-17

申请号：DE3786660

申请日：1987-12-15

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：ES2042531T3

公开(公告)日：1993-12-16

申请号：ES87118538

申请日：1987-12-15

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.

公开(公告)号：GB2202657B

公开(公告)日：1991-09-18

申请号：GB8728922

申请日：1987-12-10

Applicant: IBM

Inventor： BEALKOWSKI RICHARD ,  DAYAN RICHARD ALAN ,  DORIA DAVID JOSEPH ,  KINNEAR SCOTT GERARD ,  KRANTZ JEFFREY ISSAC ,  LIVERMAN ROBERT BRITTON ,  SOTOMAYOR GUY GIL ,  WILLIAMS DONALD DORSEY ,  VAISKAUCKAS GARY ANTHONY

IPC: G06F9/06 ,  G06F12/02 ,  G06F12/08 ,  G06F12/10 ,  G06F12/14

Abstract: A computer system and method for operating a computer system capable of running in mutually incompatible real and protected addressing modes, in which programs written for one mode can be run in the other mode without modification. The BIOS assembles two different common data areas for the two modes, each inclusive of device block pointers, function transfer table pointers, data pointers, and function pointers. The common data area for the real mode is assembled first. To assemble the pointers for the protected mode common data area, the offset values from the real mode area are copied directly, and then selector values are inserted whose physical addresses correspond to the segments of the corresponding pointers in the real mode area. The selector values are derived from a segment descriptor table.