公开(公告)号：US4432053A

公开(公告)日：1984-02-14

申请号：US278155

申请日：1981-06-29

申请人： Blaine D. Gaither ,  William W. Farley, IV ,  Albert Johnson ,  Brian L. Parker

发明人： Blaine D. Gaither ,  William W. Farley, IV ,  Albert Johnson ,  Brian L. Parker

IPC分类号： G06F9/34 ,  G06F9/355 ,  G06F12/02 ,  G06F12/10 ,  G06F13/00 ,  G06F7/00 ,  G06F9/00

CPC分类号： G06F9/342 ,  G06F2212/656

摘要： Address generating apparatus which uses narrow data paths for generating a wide logical address and which also provides for programs to access very large shared data structures outside their normally available addressing range. Selective indexed addressing is employed for providing both index data and variable dimension override data. During address generation, selected index data is used in conjunction with a displacement provided by an instruction for determining an offset. Dimension override data accompanying the selected index data is used to selectively access an address locating entry in a table of entries corresponding to the applicable program. The resulting accessed address locating entry is in turn used to determine the particular portion of memory against which the offset is to be applied.

摘要翻译： 地址生成装置，其使用窄数据路径来生成广泛的逻辑地址，并且还提供用于访问非常大的共享数据结构超出其正常可用寻址范围的程序。 选择索引寻址用于提供索引数据和可变维度覆盖数据。 在地址生成期间，选择的索引数据与由用于确定偏移的指令提供的位移结合使用。 伴随所选索引数据的维度覆盖数据用于选择性地访问对应于适用程序的条目表中的地址定位条目。 结果访问的地址定位条目又被用于确定要应用偏移的存储器的特定部分。

公开(公告)号：US4453212A

公开(公告)日：1984-06-05

申请号：US282919

申请日：1981-07-13

申请人： Blaine D. Gaither ,  William W. Farley, IV ,  Albert Johnson ,  Brian L. Parker

发明人： Blaine D. Gaither ,  William W. Farley, IV ,  Albert Johnson ,  Brian L. Parker

IPC分类号： G06F9/34 ,  G06F9/355 ,  G06F12/02 ,  G06F12/10 ,  G06F13/00 ,  G06F7/00 ,  G06F9/00

CPC分类号： G06F9/342

摘要： Address generating apparatus which uses narrow data paths for generating a wide logical address and which also provides for programs to access very large shared data structures outside their normally available addressing range and over an extended range of addresses. Selective indexed addressing is employed for providing index data which is also used for deriving variable dimension override data. During address generation, selected index data is added to a displacement provided by an instruction for deriving a dimension override value as well as an offset. The derived dimension override value is used to selectively access an address locating entry in a table of entries corresponding to the applicable program. The resulting accessed address locating entry is in turn used to determine the particular portion of memory against which the offset is to be applied.

摘要翻译： 地址生成装置，其使用窄数据路径来生成广泛的逻辑地址，并且还提供用于访问非常大的共享数据结构之外的程序以在其通常可用的寻址范围之外以及扩展的地址范围。 选择索引寻址用于提供索引数据，其也用于导出可变维度覆盖数据。 在地址生成期间，将所选择的索引数据添加到由用于导出维度超越值以及偏移的指令所提供的位移。 导出的维度覆盖值用于选择性地访问与适用程序相对应的条目表中的地址定位条目。 结果访问的地址定位条目又被用于确定要应用偏移的存储器的特定部分。