Storage-device address decoding method and apparatus thereof conducted in mutual exclusive pit-pattern comparison
A technology of memory address and decoding method, which is applied in the field of preliminary address decoding of memory, and can solve the problems of inability to quickly decode memory modules, low efficiency, and inability to effectively improve the efficiency of computer 10, etc.
Inactive Publication Date: 2006-04-19
VIA TECH INC
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The characteristics of the above-mentioned addition operation time consumption will be directly reflected in the known preliminary address decoding technology; when image 3 When the known technology in the method uses the subtraction operation carried out by the subtraction module to compare the size relationship between the given address 54 and the end addresses 46A to 46D respectively, it will consume a considerable amount of time on the subtraction operation, and cause the known control circuit 28 The efficiency of preliminary address decoding is low, and it is impossible to quickly decode the memory module to which a given address belongs
Once the efficiency of address decoding is low, the central processing unit 12 (see figure 1 ) will not be able to quickly and efficiently access the storage resources of the storage device 16, so that the efficiency of the operation of the entire computer 10 cannot be effectively improved
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[0064] Please refer to Figure 4 . Figure 4 It is a functional block diagram of the computer 60 in the present invention. As a microprocessor system, the computer 60 is provided with a central processing unit 62 , a chipset 64 , a storage device 66 , a display card 68 , a display 70 , a peripheral device 72 and a basic input / output system 74 . The central processing unit 62 is used to control the operation of the computer 60, and the storage device 66 is used to temporarily store the required programs, data and data during the operation of the central processing unit 62 in a volatile manner; the display card 68 is used to process image signals, The operation of the computer 60 can be displayed on the display 70 as a graphic image. The peripheral device 72 may include a keyboard for the user to input control commands, a mouse, a hard disk drive for storing data in a non-volatile manner, a CD-ROM drive, a sound card for processing sound signals, or for connecting the computer...
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The method and related device for decoding the addresses of the memory determine what segment the given addresses are located on. The storage device contains multiple segments. Each segment contains multiple storage units. Based on the quantity of the storage units in each segment, the different storage unit corresponds to different binary unit address in the invention. Common address is formed in part of bits in each storage unit. The different storage unit in the samke segment possesses the same common address. The common addresses for the storage units in the different segment are mutual exclusive. Comparing the common address corresponding to each segment with the relevant bits in the given address to see whether it is accorded with each other can detemrine what segment the given addresses belongs to.
Description
technical field [0001] The invention relates to a method and related device for performing preliminary address decoding of memory, in particular to a method and related device for performing preliminary address decoding of memory by using mutual exclusion bit pattern comparison. Background technique [0002] In modern society, the microprocessor system that can quickly process and manage various digital data, documents, materials and audio-visual information has become one of the most important basic equipment of the information society. Generally speaking, in order to realize various complex and diversified functions, the microprocessor system will set up a temporary data storage device (such as a random access memory) to temporarily store the programs and data required during the operation of the microprocessor. . The microprocessor reads and executes the programs and data temporarily stored in the storage device, and can control the microprocessor system to complete vari...
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IPC IPC(8): G06F12/06G06F7/38
Inventor 刘明熙
Owner VIA TECH INC