-
1.发明公开Data processing system for utilizing a memory-mapped coprocessor within a limited address space 失效对于使用有限的地址空间内的存储器映射的协处理器的数据处理设备。
公开(公告)号：EP0307649A2
公开(公告)日：1989-03-22
申请号：EP88113497.7
申请日：1988-08-19
Applicant: Compaq Computer Corporation
Inventor： McGraw, Montgomery C. , Perez, Lazaro D. , Thayer, John S. , Bryant, Raymond J.
IPC: G06F12/06
CPC classification number: G06F12/063
Abstract: A data processing system is disclosed which permits the use of a memory mapped floating point coprocessor or other such peripheral, by a process which is unable to address the peripheral's resident memory location but which is able to address a specified location. Memory mapping means intercept attempted accesses by the process to the specified location and diverts the process's access instruction to cause it to access the corresponding mapped address instead. An illustrative implementation is also described, namely the use of a Weitek 1167 memory-mapped, floating point coprocessor by processes running in the "virtual mode" of an Intel 80386 CPU.
Abstract translation: 一种数据处理系统是圆盘游离缺失允许使用存储器的映射浮点协处理器或其他外围检查，由一个进程的所有其不能处理外设的常驻存储器位置，但所有这些都能够解决一个指定的位置。 存储器映射装置截距试图通过所述进程访问到指定的位置和转移的过程中的接入指示，以使其代替访问对应的映射地址。 说明性实施方式是通过在英特尔公司的80386 CPU的“虚拟模式”运行的进程这样描述的，即利用一个Weitek 1167内存映射，浮点协处理器的。
-
2.发明公开Data processing system for utilizing a memory-mapped coprocessor within a limited address space 失效用于在有限地址空间内使用存储映射的协处理器的数据处理系统
公开(公告)号：EP0307649A3
公开(公告)日：1990-08-08
申请号：EP88113497.7
申请日：1988-08-19
Applicant: Compaq Computer Corporation
Inventor： McGraw, Montgomery C. , Perez, Lazaro D. , Thayer, John S. , Bryant, Raymond J.
IPC: G06F12/06
CPC classification number: G06F12/063
Abstract: A data processing system is disclosed which permits the use of a memory mapped floating point coprocessor or other such peripheral, by a process which is unable to address the peripheral's resident memory location but which is able to address a specified location. Memory mapping means intercept attempted accesses by the process to the specified location and diverts the process's access instruction to cause it to access the corresponding mapped address instead. An illustrative implementation is also described, namely the use of a Weitek 1167 memory-mapped, floating point coprocessor by processes running in the "virtual mode" of an Intel 80386 CPU.
-
Search Results
2
records
(took 0.025 seconds)
