odg r7

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8051 assembly command Record.

command.MOV DPTR, #0x028E//dptr is a 16-bit register that holds the address of the off-chip RAM.CLR A//current look is empty register AMOV R6, #0x01//Assign the immediate number to the R6 registerMOVC a,@a+dptr//MOVC is used to fetch data from ROM, a+dptr value as an address, and then assigns the stored value of this address to AJZ c:0155//According to register (accumulator result, that is, a) flag bit determines jump result, for 0 jump, not 0 not jump.INC DPTR//is the value of the DPTR registe

Unable to handle kernel paging request at virtual address

:80391ba8 80368080 c8e59f6c c8e59f38 800ae600 800ae304 00000000 800420cc9F40:C8E59FC4 b2d3fde0 b2d3fde0 c8e58000 800ae534 b2d3fde8 b2d3d660 000000009F60:C8E59FBC c8e59f70 8005e218 800ae540 80000013 b2d3fdf0 80375d40 000000009f80:c8e30040 80062628 c8e59f88 c8e59f88 8003d0f4 c8e41ef0 00000002 8005e10c9fa0:b2d3fde0 00000000 00000000 00000000 c8e59ff4 c8e59fc0 800623cc 8005e1189fc0:00000000 00000000 00000000 00000000 c8e59fd0 c8e59fd0 00000000 000000009fe0:00000000 00000000 00000000 C8e59ff8 8004e8f

Several methods for improving python performance

= [] for j in range (10 ): sublst. append (I % 10) # large division overhead, greater than multiplication I // = 10 sublst. reverse () yield (tuple (sublst), now) def force(): # better lst = range(5) for a1 in [1]: for a2 in lst: for a3 in lst: for b1 in lst: for b2 in lst: for b3 in lst: for c1 in lst: for c2 in lst: for c3 in lst: for d1 in lst: yield (a1, a2, a3, b1, b2, b3, c1, c2

Cadence PDK Automation System (PAS) Release v03.05.003 windows/linux 1CD

08.11.09.788 1DVDDelcam Dentcad R4 win32_64 1DVDMaplesoft.maple.v18.0.win32_64 2CDbentley.gint.pro.plus.ss2.v08.30.04.260 1CDMSC Apex Black Marlin 2014.0 with documentation Win64 2DVDMSC Marc 2014.0.0 with documentation win32_64 3DVDMSC Nastran, Patran 2014.0 with documentation Win64 4DVDMSC Sinda 2014.0 with Toolkit win32_64 2CDSafe.Software.FME.Desktop.v2015 win32_64 2CDSiemens Tecnomatix Plant Simulation 12.0 win32_64 1DVDHBM nCode 10.0 Update2 win32_64 2DVDOrange.cadpipe.gen2.v3.1.for.autoc

Registers for ARM processors

.****************************************************General purpose Registers8The general register is divided into three categories: backup register, non-backup register, program counter PCNo backup registersNo backup registers include R0-R7. for each non-backup register, the same physical register is used for all processor modes . Non-backup registers are not used by the system for special purposes, and no backup registers can be used where universa

RAC Cluster Replacement IP

RAC Cluster replacement IP is divided into three main steps: Stop the Cluster service, configure the server network, modify the cluster configuration. The following is an example of a replacement IP in the same network segment. (R7, R8 is the server name, ORCL is oracle_sid,scanip as the scan name).Stop Cluster ServiceExecutes on one of the nodesSRVCTL Disable ListenerSrvctl Stop ListenerSrvctl Disable database-d ORCLSrvctl Stop database-d Orcl-o Imme

Keil Optimization Level setting

, @DPTRMOV r7,aMOV down8,r7Setb MaxhbenMOV DPTR, #MAX197MOVX A, @DPTRMOV r7,aMOV up4,r7Two read operations are compiled. 2. 2 The best wayTell Keil C51, this address is not the general expansion RAM, but the connected device, with the "volatile" feature, each read is meaningful. You can modify the variable definition to increase the "volatile" keyword to describe its characteristics:unsigned char volatile x

Gen2.v3.1.for.autocad.2014-2015.win64 1cd+ 3DVIAStudio

Antenna Magus Pro 5.2 Update only 1CDBlue Marble geographic Calculator win32_64 2CDmechatools.shapedesigner.2013 1CDMoldworks SP0.6 for SolidWorks 2012-2015 Win64 1CDThunderhead.engineering.pyrosim.v2014.4.1208.win64 1CDClearterra Locatext v1.1 for ArcGIS, Google Earth Win64 1CDSIEMENS PLM NX 10.0.0 win64-iso 1DVDSchlumberger.visual.modflow.flex.2014.2.win32_64 2CDBentley powersurvey v8i SS4 08.11.09.788 1DVDDelcam Dentcad R4 win32_64 1DVDMaplesoft.maple.v18.0.win32_64 2CDbentley.gint.pro.plus.s

PHP PDO connection MySQL failed

In the conn.php with the PDO to connect to the local MySQL database, but the PHP Web page submitted by the data is not stored in MySQL, but run conn.php not error, do not know where the problem is!! Tangled up for three days!! Come on, guys, look. "SET NAMES UTF8"));} catch (Exception $e) { echo "Connectionã MySQL Impossible:", $e->getmessage (); Die ();}? > Reply to discussion (solution) You're just connecting.How do you use it? You're just connecting.How do you use it?

"G" "E" "H" "T" signal perfect explanation

Mobile users:The Network Diagram of the mobile phone is marked with the three types: "g, E, hG: The peak value of GPRS's transmission rate theory is 114 kbps, which is an early wireless network transmission method.E: edge has a transmission rate of 384 kbps at the peak, and is now a mainstream wireless network transmission mode.T: Full name: TD-SCDMA technology is in its infancy, the current version is divided into R4/R5/R6/R7. The theoretical value o

Realboard running 2440 ucosii minor accidents

For more information about realboard, visit the official website of huizhi technology.Www.hugacy.com Download a 2440 ucosii version from the Internet, and run it on the realboard simulator. Suddenly, it's a zombie. I immediately followed it step by step with the debugger, and finally found the culprit.Code: BL readnandidMoV R6, #0LDR r0, = 0xec73CMP R5, R0Beq % F1LDR r0, = 0xec75CMP R5, R0Beq % F1MoV R6, #11BL readnandstatusMoV R8, #0LDR R9, =__ entry2ANDS r0, R8, # 0x1fBNE % F3MoV r0,

Solrnet Advanced Usage (pagination, facet query, arbitrary grouping)

"); SolrqueryresultsSOLR. Query (qtbo,options); foreach(varFinchResults. facetfields["Brandid"]) { if(F.value >0) Console.WriteLine ("{0}: {1}", F.key, F.value); }Advanced Query Scenario two (any grouping)The above is the car source brand, the same price, you want to search according to the specified price range of vehicle source data will be used to task groups. Any grouped query results in the return value of the facetqueries, the traversal of the keyvalue

Several Methods for Improving python performance, and several python Methods

overhead, greater than multiplication I // = 10 sublst. reverse () yield (tuple (sublst), now) def force(): # better lst = range(5) for a1 in [1]: for a2 in lst: for a3 in lst: for b1 in lst: for b2 in lst: for b3 in lst: for c1 in lst: for c2 in lst: for c3 in lst: for d1 in lst: yield (a1, a2, a3, b1, b2, b3, c1, c2, c3, d1)   R0 = [1, 2] # readability and flexibility r1 = range (10)

Cocos2dx developed in windows and compiled to android (1)

Next I will introduce how to use vs2010 to develop cocos2dx and compile it to android. The procedure is as follows: 1. Prerequisites: Your eclipse code can be compiled to an Android mobile phone or virtual machine. If this step is not completed yet, check it with Google Baidu and configure the environment. [My sdk directory is: E: \ android-sdk-windows] 2. Download cygwin and install it. Please take a look at the tutorial online. cygwin must be able to use commands such as gcc, g ++, make, and v

Ro, RW, and Zi

domain. And so on. We can specify it in linker output. In simple mode, RO base corresponds to | image $ Ro $ base |, RW base corresponds to | image $ RW $ base | because RW is connected to Zi, | image $ Zi $ base | equal to | image $ Zi $ limit |. other values are automatically calculated by the compiler. Below is the handling part of the 2410 startup code. I will give a comment:Baseofrom DCD | image $ Ro $ base |Topofrom DCD | image $ Ro $ limit |Baseofbss DCD | image $ RW $ base |Baseofzero D

ARM instructions in the hopper of iOS reverse engineering

there is a higher priority function to use R0, then the value of R0 pushed to the stack, and so R0 by the higher priority function after the use of the pop from the stack before the value. The stack is typically manipulated when the function is called.The command for the stack operation is push and pop, usually in pairs, and at the beginning of the function, the value in the register to be used when the function is executed is pushed into the stack, and then at the end of the function the value

[Country EMBED strategy] [109] [Linux system calls]

System callsThe function implementation body in kernel space, provided to the application to use, is a system call.Work flow1. Switch from user space to kernel space via soft interrupt (Swi). Entry-common. The entry (VECTOR_SWI) in S is used to handle soft interrupts. System calls typically remove the system call number from the R7 register.2. Find the calling system call function from the system call table by the system call number. is also a calls.

Linux boot process

can be called by the following code: BL __lookup_processor_typeWhen the __lookup_processor_type call finishes returning to the source program, the returned results are saved to the register. Where R8 holds the flag bit of the page table, R9 holds the processor ID number, R10 holds the processor-related struct proc_info_list structure address.The detection processor type is done in assembly sub-function __lookup_architecture_type. Similar to __lookup_processor_type, it uses the code: "BL __looku

Arm Linux boot one: assembly boot to Start_kernel

+ III. Uboot passed the tags parameter also needs to be mapped (virtual 0xc** mapped to 0x3* *) for access.6) Ldr R13, __switch_data, will __switch_data the address of the data structure into the stack. 7)Add Pc,r10, #PROCINFO_INITFUNC, the PC will be changed to arch\arm\mm\proc-v7. S of the __v7_setup to execute, before jumping __enable_mmu to the LR, that is, __v7_setup after the execution of the return to __enable_mmu. __v7_setup is mainly related to CPU system initialization, such as Icac

Linux application access character device driver detailed process parsing

assembly codeYou can see that the read () function in the application actually calls the __libc_read function and then continues to search for the __libc_read function in dumpHere the red arrow pointing to the two lines is the more important two lines, the 3 passed to R7, and then use the SVC system call instruction, the PC pointer from the user space into the kernel space (through a fixed entrance), the second step will take the

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