| 摘要 |
A hardware task manager operations in an adaptive computing system. The task manager indicates when input and output buffer resources are sufficient to allow a task to execute. The task can require an arbitrary number of input values from one or more other (or the same) tasks. Likewise, a number of output buffers must also be available before the task can start to execute and store results in the output buffers. The hardware task manager maintians a counter in association with each input and output buffer. For input buffers, a negative value for the counter means that there is no data in the buffer and hence, the respective input buffer is not ready or available. Thus, the associated task can not run. Predetermined numbers of bytes, or "units," are stored into the input buffer and an associated counter is incremented. When the counter value transitions from a negative value to a zero the higher-order bit of the counter is cleared, thereby indicating the input buffer has sufficient data and is available to be processed by a task. |
