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    • 1. 发明申请
    • A LOOP CONTROL CIRCUIT FOR A DATA PROCESSOR
    • 用于数据处理器的环路控制电路
    • WO2004049154A3
    • 2005-01-20
    • PCT/IB0304962
    • 2003-10-31
    • KONINKL PHILIPS ELECTRONICS NVMEUWISSEN PATRICK P EENGIN NURVAN BERKEL CORNELIS HBEKOOIJ MARCO J G
    • MEUWISSEN PATRICK P EENGIN NURVAN BERKEL CORNELIS HBEKOOIJ MARCO J G
    • G06F9/318G06F9/32G06F9/38
    • G06F9/30181G06F9/325
    • A data processor (200) includes an operation execution unit (225) for executing instructions from an instruction memory (210) indicated by a program counter (220). A loop control circuit (230) stores respective associated loop information for a plurality of instruction loops in a register bank (232). The loop information includes at least an indication of an end of the loop and a loop count for indicating a number of times the loop should be executed. The loop control circuit (230) detects that one of the loops needs to be executed and in response to said detection, loads the loop information for the corresponding loop, and controls the program counter to execute the corresponding loop according to the loaded loop information. The loop information is initialized in response to a loop initialization instruction (240), where the initialization instruction is issued prior to and independent of a start of the loop initialized by the loop information.
    • 数据处理器(200)包括用于从由程序计数器(220)指示的指令存储器(210)执行指令的操作执行单元(225)。 环路控制电路(230)将多个指令循环的相关联的环路信息存储在寄存器组(232)中。 循环信息至少包括循环结束的指示和循环计数,用于指示应该执行循环的次数。 环路控制电路(230)检测到需要执行一个环路,并响应于所述检测,加载相应环路的环路信息,并根据加载的环路信息控制程序计数器执行相应的环路。 响应于循环初始化指令(240)初始化循环信息,其中初始化指令是在由循环信息初始化的循环的开始之前发出的。
    • 3. 发明申请
    • A LOOP CONTROL CIRCUIT FOR A DATA PROCESSOR
    • 用于数据处理器的环路控制电路
    • WO2004049154A2
    • 2004-06-10
    • PCT/IB2003/004962
    • 2003-10-31
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.MEUWISSEN, Patrick, P., E.ENGIN, NurVAN BERKEL, Cornelis, H.BEKOOIJ, Marco, J., G.
    • MEUWISSEN, Patrick, P., E.ENGIN, NurVAN BERKEL, Cornelis, H.BEKOOIJ, Marco, J., G.
    • G06F9/38
    • G06F9/30181G06F9/325
    • A data processor (200) includes an operation execution unit (225) for executing instructions from an instruction memory (210) indicated by a program counter (220). A loop control circuit (230) stores respective associated loop information for a plurality of instruction loops in a register bank (232). The loop information includes at least an indication of an end of the loop and a loop count for indicating a number of times the loop should be executed. The loop control circuit (230) detects that one of the loops needs to be executed and in response to said detection, loads the loop information for the corresponding loop, and controls the program counter to execute the corresponding loop according to the loaded loop information. The loop information is initialized in response to a loop initialization instruction (240), where the initialization instruction is issued prior to and independent of a start of the loop initialized by the loop information.
    • 数据处理器(200)包括用于从由程序计数器(220)指示的指令存储器(210)执行指令的操作执行单元(225)。 环路控制电路(230)将多个指令循环的相关联的环路信息存储在寄存器组(232)中。 循环信息至少包括循环结束的指示和循环计数,用于指示应该执行循环的次数。 环路控制电路(230)检测到需要执行一个环路,并响应于所述检测,加载相应环路的环路信息,并根据加载的环路信息控制程序计数器执行相应的环路。 响应于循环初始化指令(240)初始化循环信息,其中初始化指令是在由循环信息初始化的循环的开始之前发出的。