TW594579B - Basic input/output system with read-only blocks of built-in peripheral devices - Google Patents

Abstract

There is provided a basic input/output system (BIOS) with read only blocks of built-in peripheral devices, which can eliminate the need for the read only memory (ROM) of the peripheral devices. The present invention effectively utilizes the unused space in the BIOS by storing the ROM content of the peripheral devices into the BIOS. Accordingly, it is able to eliminate the need for the read only memory (ROM) of the peripheral devices, and thus reduce the cost and avoid wasting resources.

Description

594579

V. Description of the invention α) [Field of the invention] The present invention relates to a basic input and output unit, which is a basic subroutine for storing computer input and output, especially a basic round-in output unit with built-in read-only blocks of peripheral devices. . [Background of the Invention] The basic input output system (BIOS) is a program placed on a read-only memory (ROM). The program contains many subprograms that control the basic output unit of the entire computer system. And after the computer power is turned on, the system tests work and reads the data in the CMOS (such as the size of the hard disk, whether there is an optical drive, the system time, whether to use shadow random access memory (Shadow RAM), etc.). Usually the basic input / output unit comes with the computer host. You Rensi replaced the basic input / output unit on the computer motherboard, which may cause the computer to fail to start. This is because the basic input / output unit and the hardware have some Some degree of relevance. And general computer peripheral devices, such as a Local Area Network (LAN) card, are also equipped with read-only memory (ROM) to store programs and data needed to drive the network card, such as Programs required to communicate with a remote server, etc. Generally speaking, the read-only memory of a Network Interface Card (NIC) only occupies approximately 55 kilobytes; on the other hand, There is still a considerable amount of space for the basic input and output units that have not been used, so a lot of resources and costs have been wasted, and there is very little economic benefit. [Objective and summary of the invention]

Page 4 594579 5. Description of the invention (2) The main purpose of the present invention is to provide a basic input wheel-out unit of a repeating block, which eliminates the need to adjust the peripheral memory and build a memory, which greatly reduces costs. Read-only notes on DI clothing According to the present invention, the built-in weekly input-output unit is provided, which can be used to build the peripheral device ’s basic structure into the available space in the basic input-output unit. The read-only memory on the built-in content not only reduces the cost, but also Z, removes the extra space for peripheral output units, and X eliminates the waste of resources. Basic rotation is used to understand the purpose, structural features and understanding of the present invention. The detailed description of the figure is as follows: "[Detailed description of the embodiment] Root: The basic input and output of the read-only block with built-in peripheral devices disclosed in the present invention can be built into the basic input-output unit. The content of the only continuous body can save the read-only memory of the peripheral device and reduce the cost of the peripheral device. On the other hand, the extra space in the basic input-output unit can also be effectively used, which can be eliminated Waste of resources0

In the following, only a network card (Locai Area Network Card; LAN card) is used as an example 'to explain the actual implementation status of applying the present invention. First, save the content of the unique memory on the network card as a binary (B 丨 nar y) plant (part 14 will be provided by the network card manufacturer), and add it to the source code of the basic input and output unit. And make the system ’s basic input-output unit (Make system BIOS) with a translation program or an encoding program, the content of the read-only memory on the network card will be included in the basic input-output table

Page 5 594579 V. Description of the invention (3) Yuan. When driving the peripheral device or using the data in the read-only memory of the original peripheral device, it is only necessary to find the location where the rose is stored from the basic input and output unit and read it out so that the peripheral device can operate normally. . And find the storage location in the basic input and output unit, here, there are two methods: 1 · When storing the content of the read-only memory, give an immediate location (such as

FFF 3 0 0 0 0 H), and the read-only memory (NIC ROM) of the network interface card

), From this position, and in the basic input and output code, declare a defined value relative to this immediate position (for example, NicRomAddr EQU FFF 3 0 0 0 0 H), so you can get the read-only The starting position of the storage of the memory content can also be read from this position to find the content of the read-only memory of the network interface card when it is needed again. 2 · The read-only memory of the network interface card (n I C R 0 M) is an option for read-only memory

Memory (Opt ion ROM), and this type of read-only memory uses 55h and a ah as the starting values, so you only need to add a program to find the position of the interval FFF0000H ~ FFF7FFFFH in the basic input and output unit (assuming This section is the extra space of the basic I / O unit.) Because the positions of FFF0000H ~ FFF7FFFFH in the basic I / O unit are cleared when updating, you can find the network interface card as long as you find 5 5h and a ah. Read-only memory. As shown in the "Figure 1", select the location of the read-only memory. The 0th position 11 stores 5 5h, the 1st position 12 stores a ah, and the 2nd position 13 stores the size of this read-only memory, and the rest The data blocks 1 and 4 are stored downward from the third position; therefore, only 5 5h and 594579 need to be found in the basic input and output unit. 5. Description of the invention (4) a ah, and then cooperate with the structure definitions listed below. Find quasi 5 buy δ self 丨 Thinking content: OPT 丨 0N_R0M STRUC ROM .recognition DW ROM_ _LEN DB ROM_ .ENTRY DB OPTION_ROM ends; HOLD 0AA55 WORD IF REAL OPTION ROM; BYTE HOLDING ROM SIZE / 512

HERE CODE STARTS

IN OPTION ROM

Then according to the obtained data structure '篆, the existing mapping method in the basic input and output unit is used to map the content of the read-only memory of the network interface card to the shadow random access memory (shadow RAM). The content is moved from the FFF20000 H position 'mapping in the basic input output unit 21 to the D segment D 0 0 0: 〇〇0 0 Η (see 2A, 2 (Figure B). This method is a known technology, so it will not be described in detail. In this way, this network card can be initialized and operated normally.

[Achieved effect] The present invention can build the content of the read-only memory of the peripheral device into the available space in the basic input and output unit, and 'eliminate the read-only memory on the peripheral device, which not only reduces costs, but also effectively Utilize the extra space of the basic input and output unit, and avoid the waste of resources. The above are only the preferred embodiments of the present invention.

Page 594579 5. Description of the invention (5) It is not used to limit the scope of the invention; that is, all equivalent changes and modifications made in accordance with the patent application S of the present invention are covered by the scope of the invention patent. 594579 Schematic description and layout. The picture of the image of the body with the picture is shown in the book. We are reading and choosing the selected version 1 of 1. It is clear that it is clearly stated. It is said that B is single. The figure is simplified. The figure is A. Figure 00. Figure No. 2 3 4 Set the block position bit area ο 1 CXI material No. τ-Η 〇 0 2 2 Voxel voucher is recorded and stored in the machine.

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Claims (1)

594579 6. Scope of patent application [Scope of patent application] 1. A built-in cycle, which is characterized in that the basic input is a read-only memory input from the basic input 2. For example, the basic input input card of the patent application scope block. 3. If the content of the basic input input block of the patent application scope is stored in this input / output unit 4. If the basic input of the patent application scope block is added to the basic input location, the content can be used for the drive. 5. If the basic input and output system of the patent application range block is a choice (6. If the basic input and input elements of the patent application range block are found, the basic input and output single output unit of the read-only block of the selection edge device has a built-in one. The content of the peripheral device mentioned above, when driving the peripheral device, the required data and programs will be read out of the unit. The item 1 has a built-in peripheral device only read-out area, and the peripheral device is It is a read-only read-out unit with a built-in peripheral device described in Item 1 of a network, wherein the read-only memory of the peripheral device is a binary file, and then added to the code of the base. Item 1 has a read-only read-out unit with a built-in peripheral device, in which the content of the read-only memory is coded in and out of the output unit, and when the peripheral device is actuated, the read-only memory item 1 is found The read-only read-out unit with a built-in peripheral device has a read-only memory (op ti on) of the peripheral device. The read-only read-out unit with a built-in peripheral device described in Item 5 uses the initial values of read-only memory contents 5 5 h and a a h in the basic input-output list. Page 10 594579 VI. Determine the scope of the patent application. The basic input of the patent application block is to first set the read-only shot to an image. 8. A kind of characteristic is that the system driver reads the content and inputs the patent. The input of this basic is available, and the memory basic 9. The content of Rushen ’s basic force entry position 10 · Rushen ’s base is 1 1 Please input the patent, find the selection, the selection, the patent, select the read-only range, 1 random access of the input and output single memory, build the network card, and the data required to move the network is stored in the output unit range. 8 output unit input The output drives the net range 8th output unit option) The range 1st output unit selects the read-only record and selects the position of the memory content in the read-only range. The item described above has a read-only area of a built-in peripheral device, wherein when the peripheral device is driven, the content is reflected in the basic input-output unit memory. When reading the basic I / O unit of the read-only block ’card, the basic I / O unit and program will be read from the basic I / O unit and the program, and the read-only binary (B i n a r y) file of the network card will be added to the code. The item described in the item has a built-in network card read-only block, in which the content of the read-only memory is encoded in the unit, and given an immediate Luca, the item found in the item with the read-only memory Built-in network card read-only block. The read-only memory system of the network card reads only memory. The read-only block with a built-in network card described in item ○ refers to the location of the memory content by memorizing the initial values of 55 h and a a h in the basic input-output unit. Item Read-Only Block with Built-in Network Card Page 11 594579 VI. Basic I / O unit in the scope of patent application. When driving the network card, the content of the VW memory is first mapped from the basic I / O unit to an image random access memory. .