Address-translatable graphic processor, data processor and drawing method with employment of the same

Claim 2

A graphic processing system, comprising: a main memory for storing address conversion information; a buffer storage including a bit map memory; a central processing unit for converting a virtual address to a physical address; a graphic processor for transferring data between said main memory and said buffer storage and for converting a logical address represented by X-Y coordinates into a virtual address for accessing said main memory; interface means for interfacing said central processing unit and said main memory to said graphic processor; an address conversion unit, included in said graphic processor, for converting said virtual address into a physical address; and a register, included in said address conversion unit, for storing a base address of the address conversion information so that said address conversion unit can access the address conversion information in said main memory.

Claim 3

A graphic processing system, comprising: a main memory for storing address conversion information; a central processing unit for converting a virtual address to a physical address; a graphic processor for transferring data in said main memory and for converting a logical address represented by X-Y coordinates into a virtual address for accessing said main memory; interface means for interfacing said central processing unit and said main memory to said graphic processor; an address conversion unit, included in said graphic processor, for converting said virtual address into a physical address; and a register, included in said address conversion unit, for storing a base address of the address conversion information so that said address conversion unit can access the address conversion information in said main memory.

Claim 4

A graphic processing system, comprising: a main memory for storing address conversion information; a central processing unit for converting a virtual address to a physical address; a graphic processor for transferring data in said main memory and for converting a logical address represented by X-Y coordinates into a virtual address for accessing said main memory; interface means for interfacing said central processing unit and said main memory to said graphic processor; an address conversion unit, included in said graphic processor, for converting said virtual address into a physical address; and a register, included in said address conversion unit, for storing a base address of the address conversion information so that said address conversion unit can access the address conversion information in said main memory.

Claim 5

A data processing apparatus, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing the image data; and an image processor including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, and a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory.

Claim 6

A data processing apparatus, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing the image data; and an image processor including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, and a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory.

Claim 7

A data processing apparatus according to claim 3, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 8

A data processing apparatus, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing the image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing a accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected in said address conversion unit, and further outputting to said data processor a request signal for reading said conversion information is not located in said main memory, and a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus.

Claim 9

A data processing apparatus, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing the image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing a accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected in said address conversion unit, and further outputting to said data processor a request signal for reading said conversion information is not located in said main memory, and a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus.

Claim 10

A data processing apparatus according to claim 5, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 11

A data processing system, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting a image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus, and a display control unit for reading image data from said image memory to display said image data and outputting a synchronization signal for displaying said image data; a video converter, connected to said image memory, for converting said data in said image memory to analog data by means of said display control unit; and a display apparatus for displaying said analog signal converted by said video converter, by means of said display control unit.

Claim 12

A data processing system, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting a image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; a main memory for storing data or a program; an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus, and a display control unit for reading image data from said image memory to display said image data and outputting a synchronization signal for displaying said image data; a video converter, connected to said image memory, for converting said data in said image memory to analog data by means of said display control unit; and a display apparatus for displaying said analog signal converted by said video converter, by means of said display control unit.

Claim 13

A data processing system according to claim 7, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 14

An image processor, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of a main memory storing either of data and a program and an image memory storing image data, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data; a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory; a bus control unit for outputting, to a bus arbitration unit which controls use of said system bus, a request for using a system bus connected to said data processor, said main memory and said image processor, in order to read said conversion information from either of said main memory and said secondary storage apparatus; and a display control unit for reading image data from said image memory to display said image data, and outputting a synchronization signal for displaying said image data.

Claim 15

An image processor, comprising: a data processor for accessing data using a virtual address, processing the accessed data and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of a main memory storing either of data and a program and an image memory storing image data, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data; a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory; a bus control unit for outputting, to a bus arbitration unit which controls use of said system bus, a request for using a system bus connected to said data processor, said main memory and said image processor, in order to read said conversion information from either of said main memory and said secondary storage apparatus; and a display control unit for reading image data from said image memory to display said image data, and outputting a synchronization signal for displaying said image data.

Claim 16

An image processor according to claim 9, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 17

A data processing apparatus, comprising: a main memory for storing either of data and a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image memory for storing image data; and an image processor including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, and a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory.

Claim 18

A data processing apparatus, comprising: a main memory for storing either of data and a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image memory for storing image data; and an image processor including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, and a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory.

Claim 19

An image processor according to claim 11, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 20

A data processing apparatus, comprising: a main memory for storing data or a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information form said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, and a bus control unit for outputting, to said bus arbitration unit, a request for using said system bus in order to read said conversion information from either of said main memory and said secondary storage apparatus.

Claim 21

A data processing apparatus, comprising: a main memory for storing data or a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; and an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information form said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, and a bus control unit for outputting, to said bus arbitration unit, a request for using said system bus in order to read said conversion information from either of said main memory and said secondary storage apparatus.

Claim 22

An image processor according to claim 13, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 23

A data processing system, comprising: a main memory for storing data or a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data, an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus, and a display control unit for reading image data from said image memory to display said image data, and outputting a synchronization signal for displaying said image data; a video converter, connected to said image memory, for converting said data in said image memory to analog data by means of said display control unit; and a display apparatus for displaying said analog signal converted by said video converter, by means of said display control unit.

Claim 24

A data processing system, comprising: a main memory for storing data or a program; a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data, an image memory for storing image data; a system bus for connecting said data processor with said main memory; a bus arbitration unit for controlling use of said system bus in accordance with a request for using said system bus; an image processor, connected to said system bus, including: an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data, a memory management unit including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory, a bus control unit for outputting to said bus arbitration unit a request for using said system bus in order to read said conversion information from said main memory or said secondary storage apparatus, and a display control unit for reading image data from said image memory to display said image data, and outputting a synchronization signal for displaying said image data; a video converter, connected to said image memory, for converting said data in said image memory to analog data by means of said display control unit; and a display apparatus for displaying said analog signal converted by said video converter, by means of said display control unit.

Claim 25

An image processing system according to claim 15, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.

Claim 26

An image processor, comprising: a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data; a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory; a bus control unit for outputting, to a bus arbitration unit which controls use of said system bus, a request for using a system bus connected to said data processor, said main memory and said image processor, in order to read said conversion information from either of said main memory and said secondary storage apparatus; and a display control unit for reading image data from said image memory to display said image data, and outputting synchronization signal for displaying said image data.

Claim 27

An image processor, comprising: a data processor, including a first address conversion unit for converting a virtual address to a physical address in said main memory in order to access said main memory, said data processor accessing said main memory using a physical address produced by said first address conversion unit, processing said accessed data, and outputting an image processing command and a virtual address designating predetermined image data in image data to be processed, to process the image data; an image drawing unit for computing all virtual addresses of said image data to be processed in accordance with said virtual address designating predetermined image data, determining whether data corresponding to said computed virtual addresses are located in either of said main memory and said image memory, accessing said main memory if said computed virtual addresses are located in said main memory, accessing said image memory if said computed virtual addresses are located in said image memory, and processing said accessed data; a memory management unit, including an address conversion unit for converting all of said computed virtual addresses to physical addresses, said memory management unit detecting a presence of conversion information to be converted in said second address conversion unit, outputting to said data processor a request signal for reading said conversion information from said main memory when said presence of conversion information is not detected, and further outputting to said data processor a request signal for reading said conversion information from a secondary storage apparatus when said conversion information is not located in said main memory; a bus control unit for outputting, to a bus arbitration unit which controls use of said system bus, a request for using a system bus connected to said data processor, said main memory and said image processor, in order to read said conversion information from either of said main memory and said secondary storage apparatus; and a display control unit for reading image data from said image memory to display said image data, and outputting synchronization signal for displaying said image data.

Claim 28

An image processor according to claim 17, wherein said address conversion unit previously stores a correspondence table between physical addresses and virtual addresses, and outputs a physical address, stored in said correspondence table, which corresponds to said computed virtual address.