公开(公告)号：US06618803B1

公开(公告)日：2003-09-09

申请号：US09510282

申请日：2000-02-21

Applicant: David P Hannum ,  Rohit Bhatia

Inventor： David P Hannum ,  Rohit Bhatia

IPC: G06F9312

CPC classification number: G06F9/3834 ,  G06F9/383 ,  G06F9/3842

Abstract: The present invention discloses a system and method for simultaneously identifying a most recent advanced load instruction employing a particular register and determining whether the instruction conflicts with a store instruction thereby requiring a recovery operation. Fully associative tables are advantageously employed for identifying the most recent load instruction, for comparing store instruction address information with addresses employed in advanced load instructions, and for logging a validity status associated with a register number. Parallel operation of load vs. check register numbers and load instruction and store instruction memory addresses conserves time and preferably enables a hit/miss determination for a particular check instruction to be completed in single machine cycle.

Abstract translation: 本发明公开了一种用于同时识别采用特定寄存器的最新高级加载指令并确定指令是否与存储指令冲突从而需要恢复操作的系统和方法。 用于识别最新加载指令的完全关联表有利于将存储指令地址信息与高级加载指令中采用的地址进行比较，以及用于记录与寄存器号相关联的有效性状态。 负载与检查寄存器编号和加载指令和存储指令存储器地址的并行操作节省了时间，并且优选地使特定检查指令的命中/错误确定在单个机器周期中完成。