CN109508299A - Memory localization method, device, computer installation and computer readable storage medium - Google Patents
Memory localization method, device, computer installation and computer readable storage medium Download PDFInfo
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- CN109508299A CN109508299A CN201811042671.9A CN201811042671A CN109508299A CN 109508299 A CN109508299 A CN 109508299A CN 201811042671 A CN201811042671 A CN 201811042671A CN 109508299 A CN109508299 A CN 109508299A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
- G06F12/0292—User address space allocation, e.g. contiguous or non contiguous base addressing using tables or multilevel address translation means
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Abstract
The present invention relates to memory technology field, a kind of memory localization method, device, computer installation and computer storage medium are disclosed.The memory localization method, comprising: data to be stored is input in the structural body by definition structure body；Determine the initial memory address of memory；According to the initial memory address of the memory, deviation post of the data to be stored in the structural body is obtained；Using the data to be stored in the structural body deviation post, the actual storage address of the data to be stored is confirmed, to execute the reading or write operation of the data to be stored according to the actual storage address.Memory localization method in the embodiment of the present invention effectively increases the accuracy rate of storage address calculating, while improving the accuracy of storage operation.
Description
Technical field
The present invention relates to memory technology field more particularly to a kind of memory localization method, device, computer installation and
Computer readable storage medium
Background technique
Memory (Memory) is for protecting stored memory device in modern information technologies, in actual project application
In, we often use memory, such as EEPROM (E2), FLASH, RAM etc..Some memories are MCU included at present,
Some needs extend out.When carrying out the read-write operation process of memory, specific address space planning will be related to
And calculating.
In the prior art, memory needs user that the address of memory is known in advance, and pass through when carrying out data storage
The address reads or is written the storing data, due to needing user that address is known in advance, needs manually to be calculated address,
However, implementing in process of the present invention, at least there are the following problems in the prior art for inventor's discovery: manual calculations are easy error,
Leading to storage address mistake, and when variable is more, i.e. when the byte of storing data is more, destination address is not easy to calculate, and
There are problems that memory alignment, memory easy to operate is caused to malfunction.
Summary of the invention
The present invention provides a kind of memory localization method, it is intended to solve manual calculations in the prior art and be easy error, cause
Storage address mistake, and when variable is more, i.e. when the byte of storing data is more, destination address is not easy to calculate, and exists
Memory be aligned the problem of, cause memory easy to operate malfunction the technical issues of.
The invention is realized in this way a kind of memory localization method, which comprises
Data to be stored is input in the structural body by definition structure body；
Determine the initial memory address of memory；
According to the initial memory address of the memory, bits of offset of the data to be stored in the structural body is obtained
It sets；
Using the data to be stored in the structural body deviation post, confirm the actual storage of the data to be stored
Address, to execute the reading or write operation of the data to be stored according to the actual storage address.
The present invention also provides a kind of memory positioning device, described device includes:
Structural body definition unit is used for definition structure body, data to be stored is input in the structural body；
Initial memory address determination unit, for determining the initial memory address of memory；
Deviation post acquiring unit obtains the data to be stored for the initial memory address according to the memory
Deviation post in the structural body；
Actual storage Address Confirmation unit, for utilizing data to be stored deviation post in the structural body, really
The actual storage address of the data to be stored is recognized, to execute the reading of the data to be stored according to the actual storage address
Or write operation.
The present invention also provides a kind of computer installation, the server includes processor, and the processor is deposited for executing
The step of realizing method as described above when the computer program stored in reservoir.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program (instruction), feature
It is, the step of computer program (instruction) realizes method as described above when being executed by processor.
One of embodiment of the present invention memory localization method is obtained by the initial memory address of the memory
Deviation post of the data to be stored in structural body；Data to be stored deviation post in structural body is recycled, is confirmed wait store
The actual storage address of data, to carry out subsequent read-write operation.The embodiment of the present invention only needs to arrive memory storage is wanted
Storing data be input in structural body, recycle the macrodefinition of memory, can automatically calculate the storing data and deposit
Actual storage address in reservoir effectively increases the accuracy rate of storage address calculating, simultaneously to carry out subsequent read-write operation
Improve the accuracy of storage operation.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of memory localization method provided in an embodiment of the present invention；
Fig. 2 is schematic diagram of the structural body address of cache provided in an embodiment of the present invention to memory address space；
Fig. 3 is the schematic diagram of the address of structural body address provided in an embodiment of the present invention software distribution；
Fig. 4 is a kind of structural schematic diagram of memory positioning device provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
One of embodiment of the present invention memory localization method is obtained by the initial memory address of the memory
Deviation post of the data to be stored in structural body；Data to be stored deviation post in structural body is recycled, is confirmed wait store
The actual storage address of data, to carry out subsequent read-write operation.The embodiment of the present invention only needs to arrive memory storage is wanted
Storing data be input in structural body, recycle the macrodefinition of memory, can automatically calculate the storing data and deposit
Actual storage address in reservoir effectively increases the accuracy rate of storage address calculating, simultaneously to carry out subsequent read-write operation
Improve the accuracy of storage operation.
In embodiments of the present invention, preferred memory is E2 memory, and is illustrated such as below for E2 memory
What calculates the address of E2 memory with the method for structure solid offsetting, it is, of course, understood that the memory calculation method
It is equally applicable to other memories, such as semiconductor memory, magnetic surface storage, random access memory, sequential memory, read-only
Memory (ROM) random access memory (RAM), semiconductor memory, the memory of impermanent memory, permanent memory storage
Device, main memory, additional storage, cache memory, control memory etc., specifically without limitation.
Fig. 1 shows the flow diagram of one of embodiment of the present invention memory localization method, for ease of description,
Illustrate only part related to the present invention.The memory localization method, comprising:
Data to be stored is input in the structural body by step S11, definition structure body；
In embodiments of the present invention, the data to be stored can be variable to be stored or structural body.
In embodiments of the present invention, the structural body is used only to calculate the address of the data to be stored in the structural body
Offset, does not need to instantiate, such as can construct in the following ways:
typedef struct
{
uint32_t app_addr；
uint8_t md5[16]；
uint16_t crc；
}tsOTAProp；
typedef struc；
{
uint32_t value；
tsOTAProp ota_prop；
}E2MAP；
S12 determines the initial memory address of memory；
In embodiments of the present invention, the initial memory address of the memory can be 0, it is, of course, understood that institute
It states initial memory address and is also possible to other addresses, specifically without limitation.Specifically, starting storage can be obtained by following form
Address:
#define
Offset Of Struct(StructType,member)(uint32_t)(&(((StructType*)0)->
member))。
It is inclined in the structural body to obtain the data to be stored according to the initial memory address of the memory by S13
Pan position；
In embodiments of the present invention, the initial memory address according to the memory, obtains the data to be stored
Deviation post in the structural body specifically:
According to difference of the data to be stored between the initial address of address and the memory in the structural body
Value obtains the deviation post.
In embodiments of the present invention, after definition structure body, it is only necessary to which the storing data of desired storage to memory is inputted
Into structural body, the macrodefinition E2_ADDR of memory is recycled, positional shift can be automatically calculated, effectively increase and deposit
The accuracy rate of address calculation is stored up, while improving the accuracy of storage operation.
S14, using the data to be stored in the structural body deviation post, confirm the reality of the data to be stored
Storage address, to execute the reading or write operation of the data to be stored according to the actual storage address.
In embodiments of the present invention, specifically actual address acquisition can be illustrated in the following way:
Firstly, obtaining the initial memory address of variable in memory
#define E2_ADDR(x)OffsetOfStruct(E2MAP,x)
Then, the actual storage address of variable in memory is obtained, as follows:
1, the actual storage address of variable value in memory is obtained:
Uint32_t addr=E2_ADDR (value)；
2, the actual storage address of structural body variable ota_prop in memory is obtained:
Uint32_t addr=E2_ADDR (ota_prop)；
3, the actual storage address of structural body variable ota_prop.crc in memory is obtained:
Uint32_t addr=E2_ADDR (ota_prop.crc).
As shown in Fig. 2, as a preferred embodiment of the present invention, ground of the data to be stored in the structural body
Location is the Mirroring Mapping of the address of the memory, and the actual storage address is the deviation post.
As a practical application of the invention, firstly, then structural body is mapped to by defining a structural body
The initial address of memory extracts the offset address of the structural body data to be stored further according to the initial address, such as:
Offset=&vb-&va；Address=offset of actual storage is obtained according to the deviation post.
As shown in figure 3, as another preferred embodiment of the invention, ground of the data to be stored in the structural body
Location is what computer software distributed automatically, described to utilize data to be stored deviation post in the structural body, confirms institute
The actual storage address for stating data to be stored specifically includes
According between the initial address of the deviation post and the memory and value, with obtaining the actual storage
Location.
As a practical application of the invention, the address of variable can also be that computer software distributes automatically in structural body
Address.Firstly, then, extracting the structural body data to be stored according to the initial address by defining a structural body
Offset address, such as: offset=&vb-&va, at this point, address=memory initial address of actual storage+
offset
One of embodiment of the present invention memory localization method is obtained by the initial memory address of the memory
Deviation post of the data to be stored in structural body；Data to be stored deviation post in structural body is recycled, is confirmed wait store
The actual storage address of data, to carry out subsequent read-write operation.The embodiment of the present invention only needs to arrive memory storage is wanted
Storing data be input in structural body, recycle the macrodefinition of memory, can automatically calculate the storing data and deposit
Actual storage address in reservoir effectively increases the accuracy rate of storage address calculating, simultaneously to carry out subsequent read-write operation
Improve the accuracy of storage operation.
Fig. 4 shows the structure 100 of one of embodiment of the present invention memory positioning device, for ease of description, only
Show part related to the present invention.The memory positioning device, comprising:
Structural body definition unit 11 is used for definition structure body, data to be stored is input in the structural body；
In embodiments of the present invention, the data to be stored is variable to be stored or structural body.
In embodiments of the present invention, the structural body is used only to calculate the address of the data to be stored in the structural body
Offset, does not need to instantiate, such as can construct in the following ways:
typedef struct
{
uint32_t app_addr；
uint8_t md5[16]；
uint16_t crc；
}tsOTAProp；
typedef struc；
{
uint32_t value；
tsOTAProp ota_prop；
}E2MAP；
Initial memory address determination unit 12, for determining the initial memory address of memory；
In embodiments of the present invention, the initial memory address of the memory can be 0, it is, of course, understood that institute
It states initial memory address and is also possible to other addresses, specifically without limitation.Specifically, starting storage can be obtained by following form
Address:
#define
Offset Of Struct(StructType,member)(uint32_t)(&(((StructType*)0)->
member))。
Deviation post acquiring unit 13 obtains the number to be stored for the initial memory address according to the memory
According to the deviation post in the structural body；
In embodiments of the present invention, the deviation post acquiring unit 13 specifically includes:
Deviation post obtains module (not shown), for according to address of the data to be stored in the structural body with
Difference between the initial address of the memory obtains the deviation post.
As it can be seen that after definition structure body, it is only necessary to the storing data of desired storage to memory is input in structural body, then
The memory-aided macrodefinition of benefit, can automatically calculate positional shift, effectively increase the accuracy rate of storage address calculating, together
When improve the accuracy of storage operation.
Actual storage Address Confirmation unit 14, for utilizing data to be stored deviation post in the structural body,
The actual storage address of the data to be stored is confirmed, to execute the reading of the data to be stored according to the actual storage address
Out or write operation.
In embodiments of the present invention, specifically actual address acquisition can be illustrated in the following way:
Firstly, obtaining the initial memory address of variable in memory
#define E2_ADDR(x)OffsetOfStruct(E2MAP,x)
Then, the actual storage address of variable in memory is obtained, as follows:
1, the actual storage address of variable value in memory is obtained:
Uint32_t addr=E2_ADDR (value)；
2, the actual storage address of structural body variable ota_prop in memory is obtained:
Uint32_t addr=E2_ADDR (ota_prop)；
3, the actual storage address of structural body variable ota_prop.crc in memory is obtained:
Uint32_t addr=E2_ADDR (ota_prop.crc).
As shown in Fig. 2, as a preferred embodiment of the present invention, ground of the data to be stored in the structural body
Location is the Mirroring Mapping of the address of the memory, and the actual storage address is the deviation post.
As a practical application of the invention, firstly, then structural body is mapped to by defining a structural body
The initial address of memory extracts the offset address of the structural body data to be stored further according to the initial address, such as:
Offset=&vb-&va；Address=offset of actual storage is obtained according to the deviation post.
As shown in figure 3, as another preferred embodiment of the invention, ground of the data to be stored in the structural body
Location is what computer software distributed automatically, described to utilize data to be stored deviation post in the structural body, confirms institute
The actual storage address for stating data to be stored specifically includes
According between the initial address of the deviation post and the memory and value, with obtaining the actual storage
Location.
As a practical application of the invention, in embodiments of the present invention, the address of variable be can also be in structural body
The address that computer software distributes automatically.Firstly, then, extracting institute according to the initial address by defining a structural body
The offset address of structural body data to be stored is stated, such as: offset=&vb-&va, at this point, address=storage of actual storage
Initial address+the offset of device
One of embodiment of the present invention memory positioning device is obtained by the initial memory address of the memory
Deviation post of the data to be stored in structural body；Data to be stored deviation post in structural body is recycled, is confirmed wait store
The actual storage address of data, to carry out subsequent read-write operation.The embodiment of the present invention only needs to arrive memory storage is wanted
Storing data be input in structural body, recycle the macrodefinition of memory, can automatically calculate the storing data and deposit
Actual storage address in reservoir effectively increases the accuracy rate of storage address calculating, simultaneously to carry out subsequent read-write operation
Improve the accuracy of storage operation.
The embodiment of the present invention provides a kind of computer installation, which includes processor, and processor is for executing
The step of memory localization method that above-mentioned each embodiment of the method provides is realized when the computer program stored in memory.
Illustratively, computer program can be divided into one or more modules, one or more module is stored
In memory, and by processor it executes, to complete the present invention.One or more modules, which can be, can complete specific function
Series of computation machine program instruction section, the instruction segment is for describing implementation procedure of the computer program in computer installation.Example
Such as, computer program can be divided into the step of reverse car seeking method that above-mentioned each embodiment of the method provides.
It will be understood by those skilled in the art that the description of above-mentioned computer installation is only example, do not constitute to calculating
The restriction of machine device may include component more more or fewer than foregoing description, perhaps combine certain components or different portions
Part, such as may include input-output equipment, network access equipment, bus etc..
The processor can be central processing unit (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng the processor is the control centre of the computer installation, utilizes various interfaces and the entire computer installation of connection
Various pieces.
The memory can be used for storing the computer program and/or module, and the processor is by operation or executes
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
The various functions of computer installation.The memory can mainly include storing program area and storage data area, wherein storage program
It area can application program (such as sound-playing function, image player function etc.) needed for storage program area, at least one function
Deng；Storage data area, which can be stored, uses created data (such as audio data, phone directory etc.) etc. according to mobile phone.In addition,
Memory may include high-speed random access memory, can also include nonvolatile memory, such as hard disk, memory, grafting
Formula hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card
(Flash Card), at least one disk memory, flush memory device or other volatile solid-state parts.
If the integrated module/unit of the computer installation is realized in the form of SFU software functional unit and as independent
Product when selling or using, can store in a computer readable storage medium.Based on this understanding, the present invention is real
All or part of the process in existing above-described embodiment method, can also instruct relevant hardware come complete by computer program
At the computer program can be stored in a computer readable storage medium, which is being executed by processor
When, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer program includes computer program code, described
Computer program code can be source code form, object identification code form, executable file or certain intermediate forms etc..The meter
Calculation machine readable medium may include: can carry the computer program code any entity or device, recording medium, USB flash disk,
Mobile hard disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory
Device (RAM, Random Access Memory), electric carrier signal, electric signal and software distribution medium etc..
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these are improved and replacement
Also it should be regarded as protection scope of the present invention.
Claims (12)
1. a kind of memory localization method, which is characterized in that the described method includes:
Data to be stored is input in the structural body by definition structure body；
Determine the initial memory address of memory；
According to the initial memory address of the memory, deviation post of the data to be stored in the structural body is obtained；
Using the data to be stored in the structural body deviation post, with confirming the actual storage of the data to be stored
Location, to execute the reading or write operation of the data to be stored according to the actual storage address.
2. memory localization method as described in claim 1, which is characterized in that the data to be stored be variable to be stored or
Person's structural body.
3. memory localization method as described in claim 1, which is characterized in that described to be stored according to the starting of the memory
Address obtains deviation post of the data to be stored in the structural body, comprising:
It is obtained according to difference of the data to be stored between the initial address of address and the memory in the structural body
Take the deviation post.
4. memory localization method as described in claim 1, which is characterized in that the data to be stored is in the structural body
Address be that computer software distributes automatically, it is described to utilize data to be stored deviation post in the structural body, really
Recognize the actual storage address of the data to be stored, including
According between the initial address of the deviation post and the memory and value, the actual storage address is obtained.
5. memory localization method as described in claim 1, which is characterized in that the data to be stored is in the structural body
Address be the memory address Mirroring Mapping, the actual storage address be the deviation post.
6. a kind of memory positioning device, which is characterized in that described device includes:
Structural body definition unit is used for definition structure body, data to be stored is input in the structural body；
Initial memory address determination unit, for determining the initial memory address of memory；
Deviation post acquiring unit obtains the data to be stored in institute for the initial memory address according to the memory
State the deviation post in structural body；
Actual storage Address Confirmation unit confirms institute for utilizing data to be stored deviation post in the structural body
State the actual storage address of data to be stored, with executed according to the actual storage address data to be stored reading or
Write operation.
7. memory positioning device as claimed in claim 6, which is characterized in that the data to be stored be variable to be stored or
Person's structural body.
8. memory positioning device as claimed in claim 6, which is characterized in that the deviation post acquiring unit includes:
Deviation post obtains module, for according to address of the data to be stored in the structural body and the memory
Difference between initial address obtains the deviation post.
9. memory positioning device as claimed in claim 6, which is characterized in that the actual storage Address Confirmation unit includes
Actual storage Address Confirmation module, for according to the sum between the initial address of the deviation post and the memory
Value, obtains the actual storage address.
10. memory positioning device as claimed in claim 6, which is characterized in that the data to be stored is in the structural body
In address be the memory address Mirroring Mapping, the actual storage address be the deviation post.
11. a kind of computer installation, which is characterized in that the server includes processor, and the processor is for executing storage
It is realized when the computer program stored in device such as the step of any one of claim 1-5 the method.
12. a kind of computer readable storage medium is stored thereon with computer program (instruction), which is characterized in that the calculating
It is realized when machine program (instruction) is executed by processor such as the step of any one of claim 1-5 the method.
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| CN201811042671.9A CN109508299A (en) | 2018-09-07 | 2018-09-07 | Memory localization method, device, computer installation and computer readable storage medium |
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|---|---|---|---|
| CN201811042671.9A CN109508299A (en) | 2018-09-07 | 2018-09-07 | Memory localization method, device, computer installation and computer readable storage medium |
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ID=65745717
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110941730A (en) * | 2019-11-29 | 2020-03-31 | 南京甄视智能科技有限公司 | Retrieval method and device based on human face feature data migration |
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| CN103136107A (en) * | 2011-12-03 | 2013-06-05 | 南京南瑞继保电气有限公司 | Variable debugging method of embedded program dynamic storage allocation |
| CN108052320A (en) * | 2017-12-11 | 2018-05-18 | 上证所信息网络有限公司 | A kind of method that binary structure body is converted to JSON objects |
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2018
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103136107A (en) * | 2011-12-03 | 2013-06-05 | 南京南瑞继保电气有限公司 | Variable debugging method of embedded program dynamic storage allocation |
| CN108052320A (en) * | 2017-12-11 | 2018-05-18 | 上证所信息网络有限公司 | A kind of method that binary structure body is converted to JSON objects |
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