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1. 发明授权

US5479631A System for designating real main storage addresses in instructions while dynamic address translation is on 失效
标题翻译：用于在动态地址转换打开时指定实际主存储地址的系统
公开(公告)号：US5479631A
公开(公告)日：1995-12-26
申请号：US376543
申请日：1995-01-23
申请人： David C. Manners , Eugene S. Schulze , Danny R. Sutherland
发明人： David C. Manners , Eugene S. Schulze , Danny R. Sutherland
IPC分类号： G06F12/10
CPC分类号： G06F12/109
摘要： A data processing system includes central storage where access to data is by central storage addresses. Instructions normally include a logical or virtual address which is translated to a real central storage address using dynamic address translation (DAT) with or without an access register (AR) translation mechanism. When in AR mode, and with DAT on, addressing of instructions or data in central storage can be effected by specifying real central storage addresses and eliminate the DAT and AR translating process.
摘要翻译：数据处理系统包括其中通过中央存储地址访问数据的中央存储器。指令通常包括使用具有或不具有访问寄存器（AR）转换机制的动态地址转换（DAT）被转换为真实中央存储地址的逻辑或虚拟地址。在AR模式下，通过DAT打开，可以通过指定实际的中央存储地址来实现中央存储器中的指令或数据寻址，并消除DAT和AR转换过程。

2. 发明授权

US5613086A Method and system for locking a page of real storage using a virtual address 失效
标题翻译：使用虚拟地址锁定实际存储页面的方法和系统
公开(公告)号：US5613086A
公开(公告)日：1997-03-18
申请号：US567861
申请日：1995-12-06
申请人： Jeffrey A. Frey , David C. Manners , Jeffrey M. Nick
发明人： Jeffrey A. Frey , David C. Manners , Jeffrey M. Nick
IPC分类号： G06F12/08 , G06F12/10 , G06F12/12 , G06F12/14
CPC分类号： G06F12/126 , G06F12/10
摘要： A LOCK PAGE instruction is provided for locking a page of real storage using a virtual address. The LOCK PAGE instruction includes an operation code which specifies the operation to be performed, a first operand which contains the value of the real address obtained during execution of the LOCK PAGE instruction and a second operand which contains the value of the virtual address of the page to be locked during execution of LOCK PAGE. LOCK PAGE enables an address page or a data page to be locked without requiring the entire address space to be locked. A page is locked when a lock control bit in general register 0 is zero, the page is valid in main storage and a lock bit located in a page table entry is zero. In addition to the above, the technique used by an operating system service for reclaiming a page of real storage is altered to intersect with the LOCK PAGE facility.
摘要翻译：提供LOCK PAGE指令，用于使用虚拟地址锁定实际存储的页面。 LOCK PAGE指令包括指定要执行的操作的操作代码，第一操作数，其包含在执行LOCK PAGE指令期间获得的实际地址的值和包含页面的虚拟地址的值的第二操作数在执行LOCK PAGE期间被锁定。锁定页面可以锁定地址页面或数据页面，而不需要锁定整个地址空间。当通用寄存器0中的锁控制位为零时，页面被锁定，该页在主存储器中有效，并且位于页表条目中的锁位为零。除了上述之外，操作系统服务用于回收真实存储页面的技术被改变以与LOCK PAGE设备相交。

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