MoV assigns an immediate number to a register, but it requires a range of immediate numbers. It can only be the number of 8-bit continuous valid bits that can be obtained through an even number of shifts. If the number of values exceeds the value range, an mov command cannot be used to assign values to the Register.
In addition to normal reading, LDR also provides the function of assigning an immediate nu
When debugging the code of the function from the system database, the system function always starts with an mov EDI and EDI command. Next, the code for setting up the local stack of the function is standard. Disassemble the system DLL, such as NTDLL. dll. You can find that this is true for each of its export functions, and the mov EDI at the beginning of each export function followed by five NOP commands on
The arm is a hierarchical structure. The movement of data from memory to CPU can only be completed through the L/s command, that is, the LDR/STR command.For example, to read data from somewhere in the memory to a register, you can only use LDRFor example:LDR r0, 0x12345678Store the value in 0x12345678 to R0.But mov cannot do this job. mov can only move data between registers, or move the immediate number to
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In the arm instruction set, LDR is usually used as the loading command, but it can also be used as a pseudo command.Beginners generally do not notice their differences. In fact, these two commands are very common during embedded development! We should understand their differences.
The form of the LDR pseudo command is "ldr rn, = expr ". It is installed in a 32bit constant and an address to the Register.The followin
Memory card backup may be due to the computer power off, the display can not read to unplug the display needs to be formatted, after self-use on-line data recovery software to try to reply, most of the pictures have been restored, but the video can not play, telephoto video for MP4 format non-mov before the bar also asked, said the need to do debris level repair, Is that so?With the development of science and technology, more and more friends are enco
ARM is a RISC structure, the movement of data from memory to CPU can only be done by l/s instruction, that is, ldr/str instruction.For example, if you want to read data from somewhere in memory to a register, you can only use LDRLike what:Ldr R0, 0x12345678is to store the value of the 0x12345678 address in the r0.And MOV can not do this job, MOV can only move data between registers, or to move the number of
Geovid video to flash converter 6.1 pro Simplified Chinese version [Flash] 13.6 MB authorization method: free software environment: Win2000/WINXP/win2003 language: Simplified Chinese software type: Chinese software rating:High QualityFlash(SwF/FLV) encoder. We can convert Avi, ASF, WMV, mov, MP4, MPEG, mpg, and other video files into SWF or FLV files.FlashFile.Th
Typical Pentium software delay loops can be written using mov and loop instructions.For example, the following instruction sequence can be used for a delay loop: mov CX, countdelay: loop delayThe initial loop counter value of "Count" can be calculated using the cycles required to execute the following Pentium instructions: mov REG/Imm (1 cycle) loop label (5/6 cy
I was fooled and thought that Lea and mov commands are similar. Today I knoW it. By the way, I tested the efficiency of C inline assembly.
Discussion on mov (command group) and Lea commands
Quotes from kanxue:Lea eax, [EBX + 4] is equivalent to: eax = EBX + 4. The LEA command allows you to complete computation within a clock, which is fast.Add EBX, 4; equivalent to EBX = EBX + 4DifferentMoV eax and EBX +
MoV PC, R4 @ call kernel is definitely redirected to R4: 40008000 to start execution
Start to enter the image. The image is generated by vmlinux. Therefore, read and understand the image from vmlinux.
ARCH/Unicore/kernel directory. According to its link script, start from head. S:
_ Lookup_processor_type:
Compare proc_info_list with processor by using relative fetch address (because an image supports one processor, the processor information is retriev
The idea is to first obtain the file type and select different webpage player codes according to the type .. 3, 5, go, 2 ..... at the same time, in order to reuse the code in the future, a general call function is written. facilitate future calls in other systems ..
The source code is as follows:
Copy codeThe Code is as follows: Sub SelPlay (strUrl, strWidth, StrHeight)
Dim Exts, isExt
If strUrl IsExt = LCase (Mid (strUrl, limit Rev (strUrl, ".") + 1 ))
Else
IsExt = ""
End If
Exts = "avi, wmv, a
interpret theatom's data. use the atom's size field to skip this atom and all of its contents. this allows adegree of forward compatability with extensions to the QuickTime file format.
3. Extended size
If the size field of an atom is set to 1, the Type field is followed by a 64-bit extended size
Field, which contains the actual size of the atom as a 64-bit unsigned integer. This is used whenthe size of a media data atom exceeds 2 ^ 32 bytes.
4. Version
All version fields must be set to0, u
, and the result overwrites the order in reverse order.
This function returns the result of the target range. The first element to be overwritten is displayed in sequence (that is, the first element to be overwritten rather than the first element to be overwritten) (See the following example ).
The behavior is similar:
templateA simple example:
#include Run:
Note that the returned result is an iterator pointing to the 99 element in the result, instead of the first element in the last range!
the representative Longchamp leather folder He Jiace Qing's identity token, the younger brother collected. The city master took out a long-ready token, and some Dan pills. Lin Yu also no guest atmosphere, will dan all income ring space, hand only left on behalf of He Jiace Qing's token, this token with Longchamp leather folder before also went out of the same, the token there is a word, but the color is different, it is estimated that this is the region.Brother, let's go, the channel is open. T
One: Use Flash software to open SWF file
Because Flash animation design software designed to the final file of the animation file is SWF format file, then Flash software can open the type of file is not determined, but Flash software is larger, the general user just need to see the animation, running the animation in the game or video just, Obviously it's not realistic to go down and install a flash develo
What is the swf file? In fact, the SWF file is a flash animation file, then the SWF file with what open it? In fact, you need to open the SWF file method There are a lot, the following gives you several of the simplest way to open.
The specific methods are as follows:
One: Use Flash software to open
What is the SWF file
SWF is a flash animation file, typically created with flash software and generated in SWF file format, SWF format files are widely used to create attractive applications, they contain rich video, sound, graphics and animation. You can create raw content in Flash or import them from other Adobe app
In AS3, if the parent SWF loads a child SWF, and the child SWF loads a txt file, how does the parent SWF know when the child SWF loads the txt file?
Code in the child SWF:
var urlrequest:urlrequest=new urlrequest ("A.txt");var l
Local files without Network Environment
Currently, I have designed a website homepage using Flex builder 3 and want to run it on a non-Web Server (like a static webpage). An error occurred while accessing the local file as shown in the title SWF, some methods are found on the network. Here the URL (
Hi.baidu.com/wllw/blog/item/ae173fa8e80879b5ca130c30.html
(
Effective Test
).
the core excerpt is as follows: (solution)
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