摘要:
An image processing apparatus has: a data memory configured to store image data; an RP register configured to hold a two-dimensional address indicating a position of an RP in a frame of image data; and an RP control section configured to control the two-dimensional address held by the RP register on the basis of the width and height of the frame. Furthermore, the image processing apparatus has an address calculation unit configured to, when reading target pixel data is read from the data memory on the basis of an instruction code provided with a field for specifying a two-dimensional relative position from the RP by a combination of two immediate values, calculate an address at which the reading target pixel data is stored, on the basis of the two-dimensional address, the combination of immediate values and the width of the frame.
摘要:
An image processor includes a video input unit that counts the number of input pixel data and a command fetch/issue unit calculates, when a command including information concerning a relative position register in which a delay amount from input of pixel data until execution of a command is stored is fetched, a pixel position of processing target pixel data based on the delay amount and a count result and determines, based on the calculated pixel position, whether signal processing should be performed or specifies an operand used in arithmetic operation.
摘要:
An image processing apparatus has: a data memory configured to store image data; an RP register configured to hold a two-dimensional address indicating a position of an RP in a frame of image data; and an RP control section configured to control the two-dimensional address held by the RP register on the basis of the width and height of the frame. Furthermore, the image processing apparatus has an address calculation unit configured to, when reading target pixel data is read from the data memory on the basis of an instruction code provided with a field for specifying a two-dimensional relative position from the RP by a combination of two immediate values, calculate an address at which the reading target pixel data is stored, on the basis of the two-dimensional address, the combination of immediate values and the width of the frame.
摘要:
A memory controller, on receiving a write request to write write-data into an address of a second memory region issued by a processor, determines whether read-data requested to be read from an address of a first memory region by the processor is matched with the write-data requested to be written into the address of the second memory region, and if the read-data is matched with the write-data, prevents the write-data from being written into the address of the second memory region.
摘要:
An image processor includes a video input unit that counts the number of input pixel data and a command fetch/issue unit calculates, when a command including information concerning a relative position register in which a delay amount from input of pixel data until execution of a command is stored is fetched, a pixel position of processing target pixel data based on the delay amount and a count result and determines, based on the calculated pixel position, whether signal processing should be performed or specifies an operand used in arithmetic operation.
摘要:
A memory controller, on receiving a write request to write write-data into an address of a second memory region issued by a processor, determines whether read-data requested to be read from an address of a first memory region by the processor is matched with the write-data requested to be written into the address of the second memory region, and if the read-data is matched with the write-data, prevents the write-data from being written into the address of the second memory region.
摘要:
A microprocessor that can perform sequential processing in data array unit includes: a load store unit that loads, when a fetched instruction is a load instruction for data, a data sequence including designated data from a data memory in memory width unit and specifies, based on an analysis result of the instruction, data scheduled to be designated in a load instruction in future; and a data temporary storage unit that stores use-scheduled data as the data specified by the load store unit.
摘要:
According to an embodiment, a compiling device compiling a source program written so as to use a frame memory includes a processing delay amount calculator configured to calculate respective processing delay amounts between a plurality of process tasks in the source program on the basis of processing states of pieces of data processed by the process tasks. The compiling device also includes a line memory amount calculator configured to calculate respective line memory sizes required for each of the process tasks on the basis of an access range of a frame memory from which the process task reads data and an instruction code converter configured to convert the plurality of process tasks to instruction codes executable in a pipeline on the basis of the processing delay amounts and the line memory sizes.
摘要:
According to an embodiment, a compiling device compiling a source program written so as to use a frame memory includes a processing delay amount calculator configured to calculate respective processing delay amounts between a plurality of process tasks in the source program on the basis of processing states of pieces of data processed by the process tasks. The compiling device also includes a line memory amount calculator configured to calculate respective line memory sizes required for each of the process tasks on the basis of an access range of a frame memory from which the process task reads data and an instruction code converter configured to convert the plurality of process tasks to instruction codes executable in a pipeline on the basis of the processing delay amounts and the line memory sizes.
摘要:
A projector is provided with: an input line memory which holds an input image signal corresponding to one line; an image processor which generates an intermediate image signal correction-processed according to distortion of a projection lens, using the input image signal transferred from the input line memory; an output line memory which holds the intermediate image signal corresponding to one line; and an LCOS which guides light radiated from a light source to the projection lens in accordance with the intermediate image signal. The image processor is provided with an input supplementation buffer which stores the input image signals of a plurality of lines, an input data buffer which stores input image signals required to generate the intermediate image signal corresponding to one line, and a number-of-supplementary-lines calculator which calculates the number of supplementary lines of the input image signals.