Bit Range Isolation Instructions, Methods, and Apparatus
    10.
    发明申请
    Bit Range Isolation Instructions, Methods, and Apparatus 有权
    位范围隔离说明,方法和设备

    公开(公告)号:US20110153997A1

    公开(公告)日:2011-06-23

    申请号:US12645307

    申请日:2009-12-22

    IPC分类号: G06F9/305 G06F9/30 G06F12/02

    摘要: Receiving an instruction indicating a source operand and a destination operand. Storing a result in the destination operand in response to the instruction. The result operand may have: (1) first range of bits having a first end explicitly specified by the instruction in which each bit is identical in value to a bit of the source operand in a corresponding position; and (2) second range of bits that all have a same value regardless of values of bits of the source operand in corresponding positions. Execution of instruction may complete without moving the first range of the result relative to the bits of identical value in the corresponding positions of the source operand, regardless of the location of the first range of bits in the result. Execution units to execute such instructions, computer systems having processors to execute such instructions, and machine-readable medium storing such an instruction are also disclosed.

    摘要翻译: 接收指示源操作数和目标操作数的指令。 将结果存储在目标操作数中以响应指令。 结果操作数可以具有:(1)具有第一端的第一范围,其中每个位在相应位置中的每个位与源操作数的位相同的指令明确地指定; 和(2)与相应位置中的源操作数的位的值无关的所有位都具有相同值的第二范围。 不管移动第一范围的结果相对于源操作数的相应位置中相同值的位,执行指令都可以完成,而不考虑结果中第一个位的位置。 还公开了执行这些指令的执行单元,具有执行这种指令的处理器的计算机系统以及存储这种指令的机器可读介质。