Invention Grant
US07941653B2 Jump instruction having a reference to a pointer for accessing a branch address table 有权
跳转指令具有对用于访问分支地址表的指针的引用

Jump instruction having a reference to a pointer for accessing a branch address table
Abstract:
Methods and apparatus are provided for performing a jump operation in a pipelined digital processor. The method includes writing target addresses of jump instructions to be executed to a memory table, detecting a first jump instruction being executed by the processor, the first jump instruction referencing a pointer to a first target address in the memory table, the processor executing the first jump instruction by jumping to the first target address and modifying the pointer to point to a second target address in the memory table, the second target address corresponding to a second jump instruction. The execution of the first jump instruction may include prefetching at least one future target address from the memory table and writing the future target address in a local memory. The second target address may be accessed in the local memory in response to detection of the second jump instruction.
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