CN1361468A - BIOS with built-in read-only block for peripherals - Google Patents
BIOS with built-in read-only block for peripherals Download PDFInfo
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- CN1361468A CN1361468A CN 00136950 CN00136950A CN1361468A CN 1361468 A CN1361468 A CN 1361468A CN 00136950 CN00136950 CN 00136950 CN 00136950 A CN00136950 A CN 00136950A CN 1361468 A CN1361468 A CN 1361468A
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Abstract
The BIOS with built-in read-only block for peripherals makes it possible for the peripherals to omit ROM. The present invention uses the unused space in BIOS to store the content used to be stored in the ROM of peripherals. Omitting ROM in peripherals can reduce cost and avoid waste in resource.
Description
The present invention relates to a kind of Basic Input or Output System (BIOS), in order to deposit computer export into basic subroutine, particularly relate to the Basic Input or Output System (BIOS) that has read-only block for peripherals in a kind of.
Basic Input or Output System (BIOS) (Basic Input Output System; BIOS), it is the one section program that is put in above the ROM (read-only memory) (ROM), its program has comprised many subroutines of controlling the basic output unit of whole computer system, and after the computer power starting, the test job of system, and read data in the middle of the CMOS (as hard disk size, whether CD drive, system time are arranged, whether use reflection random access memory information such as (Shadow RAM)).Usually Basic Input or Output System (BIOS) is to be accompanied by host computer; if we changed the Basic Input or Output System (BIOS) on the computer motherboard arbitrarily; the situation that may cause computer to start, this is because Basic Input or Output System (BIOS) and hardware have the relevance of some degree.
And general computer peripheral is network (Local Area Network for example; LAN) card also is equiped with ROM (read-only memory) (ROM) on it, in order to storage drive network card required program and data, for example is to link up required program or the like with the far-end servomechanism, generally speaking, and network interface unit (Network Interface card; NIC) ROM (read-only memory) is approximately only occupied 55 kilobyte (kbyte); On the other hand, Basic Input or Output System (BIOS) also has sizable space not to be used, so wasted many resources and cost, does not have very much economic benefit.
Fundamental purpose of the present invention is provides a kind of Basic Input or Output System (BIOS) with built-in read-only block for peripherals, can save the ROM (read-only memory) on the peripherals, significantly reduces cost.
Basic Input or Output System (BIOS) with built-in read-only block for peripherals disclosed according to the present invention, the content of the ROM (read-only memory) of peripherals can be built in the free space in the Basic Input or Output System (BIOS), and can save ROM (read-only memory) on the peripherals, not only reduce cost, and effectively utilize the redundant space of Basic Input or Output System (BIOS), remove the waste of resource again from.
Below in conjunction with accompanying drawing shown in the embodiment purpose of the present invention, structural attitude and function thereof are described in further detail.
Fig. 1 is the arrangement plan of selection ROM (read-only memory) of the present invention;
Fig. 2 A, 2B are the synoptic diagram of the present invention's mapping.
Basic Input or Output System (BIOS) with built-in read-only block for peripherals disclosed according to the present invention, can be in Basic Input or Output System (BIOS) the content of the ROM (read-only memory) of built-in peripherals, and can save the ROM (read-only memory) of peripherals, to reduce the cost of peripherals; On the other hand, also the redundant space in the Basic Input or Output System (BIOS) can be done effectively to utilize, can remove the waste of resource from.
Below only with network card (Local Area Network Card; LAN card) is example, the execution situation of using reality of the present invention is described.At first with the content of the ROM (read-only memory) on the network card, store into scale-of-two (Binary) file (this part is that network card manufacturing plant can provide), and in the source code of its adding Basic Input or Output System (BIOS), and to organize the Basic Input or Output System (BIOS) (Make System BIOS) that translator program or coded program come manufacturing system, the content of the ROM (read-only memory) on that network card will involvedly enter in the Basic Input or Output System (BIOS).And during the data in driving peripherals and maybe need to use the ROM (read-only memory) of peripherals originally, only need from Basic Input or Output System (BIOS), to seek its position of depositing, and it is read out, but make the peripherals normal operation.
And in Basic Input or Output System (BIOS), seek its position of depositing, at this, provide two kinds of methods:
1, when storing the content of ROM (read-only memory), given one position (for example be FFF30000H) immediately, and the ROM (read-only memory) of network interface unit (NIC ROM), just begin to put by this position, and in the coding of basic input and output, declare that a definition value is with respect to this position (for example for NicRomAddr EQU FFF30000H) immediately, so just can obtain the reference position that the ROM (read-only memory) content is deposited, also just can be when needed, the content of the ROM (read-only memory) that finds network interface unit is read in a position thus.
2, the ROM (read-only memory) of network interface unit (NIC ROM) is a kind of selection ROM (read-only memory) (Option ROM), and this kind ROM (read-only memory) all is to be used as initial value with 55h and aah, so only need add a program, seek this interval position of FFFOOOOH～FFF7FFFFH in the Basic Input or Output System (BIOS) (supposing that this interval is the redundant space of Basic Input or Output System (BIOS)), because the interval position of FFFOOOOH in the Basic Input or Output System (BIOS)～FFF7FFFFH has just emptied when upgrading, as long as, just can find the content of the ROM (read-only memory) of network interface unit so search out 55h and aah.
As shown in Figure 1, select the position configuration of ROM (read-only memory), 55h is deposited in O position 11, and aah is deposited in the 1st position 12, and the size of ROM (read-only memory) is for this reason deposited in the 2nd position 13, and remaining block 14 is then deposited downwards by the 3rd position; So only need in Basic Input or Output System (BIOS), to find 55h and aah, cooperate following listed organization definition again, can find the content of ROM (read-only memory):
OPTION_ROM STRUC
ROM_RECOGNITION DW ；HOLD?OAA55?WORD?IF?REAL?OPTION?ROM
ROM_LEN DB ；BYTE?HOLDING?ROM?SIZE/512
ROM_ENTRY DB ；WHERE?CODE?STARTS?IN?OPTION?ROM
OPTION_ROM ENDS
Again according to resulting data structure content, use existing mapping method in the Basic Input or Output System (BIOS), with the content map of the ROM (read-only memory) of network interface unit to reflection random access memory (shadow RAM), be for example by the FFF20000H position in the Basic Input or Output System (BIOS) 21 with its content, D block (segment) D000:0000H that mapping is moved in the reflection random access memory 22 (sees Fig. 2 A, Fig. 2 B), this method is a technique known, so repeat no more, like this, make this network card can be initialised (Initial) and normal operation.
The present invention can be built into the content of the ROM (read-only memory) of peripherals in the free space in the Basic Input or Output System (BIOS), save the ROM (read-only memory) on the peripherals, not only reduce cost, and can effectively utilize the redundant space of Basic Input or Output System (BIOS), remove the waste of resource again from.
Above-described content only is the present invention's preferred embodiment wherein, is not to be used for limiting practical range of the present invention; All are claim of the present invention and contain according to equal variation and modification that claim of the present invention is carried out.
Claims (12)
1, a kind of Basic Input or Output System (BIOS) with built-in read-only block for peripherals is characterized in that:
This Basic Input or Output System (BIOS) has the content of the ROM (read-only memory) of more than one peripherals in also, and when driving this peripherals, can read required data and program in this Basic Input or Output System (BIOS).
2, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 1 is characterized in that: this peripherals is a network card.
3, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 1, it is characterized in that: the content of the ROM (read-only memory) of this peripherals stores into binary file, adds in the coding of this Basic Input or Output System (BIOS) again.
4, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 3, it is characterized in that: with the content of this ROM (read-only memory) in the coding that adds this Basic Input or Output System (BIOS), given one position immediately, in the time of can supplying to drive this peripherals, search out the content of this ROM (read-only memory).
5, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 1 is characterized in that: the ROM (read-only memory) of this peripherals is a selection ROM (read-only memory).
6, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 5, it is characterized in that:, and determine the position that this should select the ROM (read-only memory) content by the initial value 55h and the aah of this selection ROM (read-only memory) content of searching in this Basic Input or Output System (BIOS).
7, the Basic Input or Output System (BIOS) with built-in read-only block for peripherals as claimed in claim 1, it is characterized in that: when driving this peripherals, earlier the content of this ROM (read-only memory) is put a reflection random access memory by mapping in this Basic Input or Output System (BIOS).
8, a kind of Basic Input or Output System (BIOS) with built-in network card read-only block is characterized in that:
During this network card of system drive, can read required data and program in this Basic Input or Output System (BIOS), wherein the content of the ROM (read-only memory) of this network card stores into binary file, adds in the coding of this Basic Input or Output System (BIOS) again.
9, the Basic Input or Output System (BIOS) with built-in network card read-only block as claimed in claim 8, it is characterized in that: with the content of this ROM (read-only memory) in the coding that adds this Basic Input or Output System (BIOS), given one position immediately, in the time of can supplying to drive this network card, search out the content of this ROM (read-only memory).
10, the Basic Input or Output System (BIOS) with built-in network card read-only block as claimed in claim 8 is characterized in that: the ROM (read-only memory) of this network card is a selection ROM (read-only memory).
11, the Basic Input or Output System (BIOS) with built-in network card read-only block as claimed in claim 10, it is characterized in that:, and determine the position that this selects the ROM (read-only memory) content by the initial value 55h and the aah of this selection ROM (read-only memory) content of searching in this Basic Input or Output System (BIOS).
12, the Basic Input or Output System (BIOS) with built-in network card read-only block as claimed in claim 8, it is characterized in that: when driving this network card, earlier the content of this ROM (read-only memory) is put a reflection random access memory by mapping in this Basic Input or Output System (BIOS).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136950 CN1361468A (en) | 2000-12-29 | 2000-12-29 | BIOS with built-in read-only block for peripherals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00136950 CN1361468A (en) | 2000-12-29 | 2000-12-29 | BIOS with built-in read-only block for peripherals |
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| Publication Number | Publication Date |
|---|---|
| CN1361468A true CN1361468A (en) | 2002-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00136950 Pending CN1361468A (en) | 2000-12-29 | 2000-12-29 | BIOS with built-in read-only block for peripherals |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167040B (en) * | 2005-02-25 | 2012-10-03 | 晟碟以色列有限公司 | Signaling to a peripheral via irregular read operations |
-
2000
- 2000-12-29 CN CN 00136950 patent/CN1361468A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101167040B (en) * | 2005-02-25 | 2012-10-03 | 晟碟以色列有限公司 | Signaling to a peripheral via irregular read operations |
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