Abstract: An instruction compressing apparatus and method for a parallel processing computer such as a very long instruction word (VLIW) computer, are provided. The instruction compressing apparatus includes a bundle code generating unit, an instruction compressing unit, and an instruction converting unit. The bundle code generating unit may generate a bundle code in response to an input of instructions to be compressed. The bundle code may indicate whether a current instruction group is terminated, and also whether an instruction group following the current instruction group is a no-operation (NOP) instruction group. The instruction compressing unit may remove a NOP instruction and/or a NOP instruction group from the input instructions according to the generated bundle code. The instruction converting unit may include the generated bundle code in the remaining instructions which have not been removed by the instruction compressing unit.

Abstract: An interrupt handling technology and a reconfigurable processor are provided. The reconfigurable processor includes a plurality of processing elements, and some of the processing elements are designated for interrupt handling. When an interrupt request occurs while the reconfigurable processor is executing a loop operation, the designated processing elements may process the interrupt request. The interrupt handling technology allows the interrupt request and the loop operation to be processed in parallel.

Abstract: An interrupt support determining apparatus and method for an equal-model processor, and a processor including the interrupt support determining apparatus are provided. The interrupt support determining apparatus determines whether an instruction input to a processor decoder is a multiple latency instruction, compares a current latency of the instruction with a remaining latency if the instruction is a multiple latency instruction, and updates the current latency to the remaining latency if the current latency is greater than the remaining latency.

Abstract: An apparatus and method for generating a very long instruction word (VLIW) command that supports predicated execution, and a VLIW processor and method for processing a VLIW are provided herein. The VLIW command includes an instruction bundle formed of a plurality of instructions to be executed in parallel and a single value indicating predicated execution, and is generated using the apparatus and method for generating a VLIW command. The VLIW processor decodes the instruction bundle and executes the instructions, which are included in the decoded instruction bundle, in parallel, according to the value indicating predicated execution.

Abstract: A scheduler of a reconfigurable array, a method of scheduling commands, and a computing apparatus are provided. To perform a loop operation in a reconfigurable array, a recurrence node, a producer node, and a predecessor node are detected from a data flow graph of the loop operation such that resources are assigned to such nodes so as to increase the loop operating speed. Also, a dedicated path having a fixed delay may be added to the assigned resources.

Abstract: A computing apparatus and method of handling an interrupt are provided. The computing apparatus includes a coarse-grained array, a host processor, and an interrupt supervisor. When an interrupt occurs in the coarse-grained array while performing a loop operation, the host processor processes the interrupt, and the interrupt supervisor may perform mode switching between the coarse-grained array and the host processor.

Abstract: Described herein is a reconfigurable processor which uses a distributed configuration memory structure and an operation method thereof in which power consumption is reduced. A processing unit which configures the reconfigurable processor includes a functional unit, a distributed configuration memory, a no-operation (NOP) register, and a controller. The NOP register stores information which represents whether or not a NOP operation is performed at each clock cycle. The controller controls to deactivate the distributed configuration memory at a clock cycle at which a NOP operation is performed.

Abstract: An apparatus and method for scheduling an instruction are provided. The apparatus includes an analyzer configured to analyze dependency of a plurality of recurrence loops and a scheduler configured to schedule the recurrence loops based the analyzed dependencies. When scheduling a plurality of recurrence loops, the apparatus first schedules a dominant loop whose loop head has no dependency on another loop among the recurrence loops.

Abstract: Provided are a reconfigurable processor and operating method thereof. The reconfigurable processor may use a configuration memory distributed to each operation unit. The distributed configuration memory may be separated into a distributed operation configuration memory including configuration information about an operation of a function unit, and a distributed routing configuration memory including configuration information about routing. The distributed operation configuration memory may be activated according to a predicate signal.