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scopes. Here I remind you, for a clustered index table, because the data row is the leaf level of the index, the lock is a key lock complete instead of a row lock. The database engine typically has to obtain a lock on a multi-granularity level to fully protect resources. The locks on this set of multi-granularity levels are called lock hierarchies. For example, to fully protect the reading of an index, the instance of the database engine might have to obtain a shared lock on the row and an inte

"); return b; } int main () {test1 (); Test2 (); return 0; } First compilation: ARM-NONE-LINUX-GNUEABI-GCC Inline.c-o Inline Disassembly is as follows: arm-none-linux-gnueabi-objdump-d inline > Log View Log file Cat log: Partial assembler Code 000083d4 83d4:e1a0c00d mov ip, SP 83d8:e92dd800 Push {fp, IP, LR, PC} 83dc:e24cb004 Sub fp, IP, #4; 0x4 83e0:eb000005 bl 83fc 83e4:eb000012 bl 8434 83e8:e3a03000 mov r3, #0; 0x0 83ec:e1a00003 mov r0, R

instruction, will correspond to the value of some registers, one by one into the stack, the corresponding value into the stack inside, that is, the so-called pressure stack. Then the call to the completion of the child function, and then call the pop, the stack of values, assigned to the corresponding those you just start to press the stack used in the register, the corresponding value from the stack shot out, that is, the so-called out of the stack. The saved registers, also including the

defined in/uboot-root/include/configs/xxx.h. Find/uboot-root/include/configs/s5p4418_nanopi2.h here. Found in this header file does not define CONFIG_SKIP_LOWLEVEL_INIT this macro, that this code is to be executed. The first is to execute the BL CPU_INIT_CP15 this statement. Because the system stack is not initialized at this time, the call return address can only be logged by the LR register. Therefore, the contents of the current relevant register

this point, entire context of the process has been saved Os_cpu_pendsvhandler_nosave PUSH {R14} ; Save LR Exc_return value LDR R0, =ostaskswhook; OstaskswHook (); BLX R0 POP {R14} LDR R0, =ospriocur; Ospriocur = Ospriohighrdy; Ldr R1, =ospriohighrdy ldrb R2, [R1] STRB R2, [R0] Ldr R0, =ostcbcur ; Ostcbcur = Ostcbhighrdy; Ldr R1, =ostcbhighrdy ldr R2, [R1] STR R2,

Torch.optim is a package that implements a variety of optimization algorithms, and most of the common methods are supported, providing rich interface calls that will be integrated in more refined optimization algorithms in the future.In order to use Torch.optim, it is necessary to construct an optimizer object optimizerto hold the current state and to update the parameters based on the computed gradient.To build an optimizer optimizer, you have to give it a list of all the parameters (all parame

, is a meaning.Save the value of the register, generally with the push instruction, the corresponding value of some registers, one by one onto the stack, the corresponding value is pressed into the stack, that is, the so-called pressure stack. Then when the child function is called to complete the execution, then call the pop, the stack of values, assigned to the corresponding ones you just started to use the register, the corresponding value from the stack popped out, called the stack.The store

1. The processor may be in the following states before an exception occurs: 1.Handler 2.Thread, MSP 3.Thread, PSP Ii. Exceptions: 1,There is a stack pressure process. If PSP is used when an exception occurs, it is pushed to PSP. If an exception occurs, it is pushed to MSP. 2,The LR value will be set based on the processor mode and the stack used (of course, the configured LR value will be re-applied to the

, R0, C1, C0, 0 /** Before relocating, We Have To Setup RAM Timing* Because memory timing is board-dependend, you will* Find A lowlevel_init.s in your board directory.*/MoV IP, LRBL lowlevel_initMoV LR, IPMoV PC, LR This Program sets the arm coprocessor CP15 registers, CP15 has 16 32-bit registers, arm_920t manual can find the specific content. Registers 7 and 8 are used for cache (instruction and data buff

Regular expression string: PHPcode lt; ahref quot; teamMemberDisplay. php? TTeam gt; SWDesignandISSScrumTeam2 lt; a gt; lt; br gt; lt; ahref quot; programDisplay. php? Pid positive expression String: PHP code SW Design and ISS Scrum Team 2LR RF HW Modules->LR WCDMA CPRI Baseline->LR CPRI Misc.->SW Dev and Test Calculate lr rf HW Modules,

Start. S clear bss segment, start. sbss segment Start. S . Global _ start. global _ end. align 2. text_start: B reset ldr pc, _ undefined_instruction ldr pc, _ Your ldr pc, _ prefetch_abort ldr pc, _ data_abort ldr pc, _ not_used ldr pc, _ irq ldr pc, _ fiq_undefined_instruction :. word und_software_interrupt :. word svc_prefetch_abort :. word pre_abort_data_abort :. word data_abort_not_used :. word 0x12345678_irq :. word irq_fiq :. word fiqreset: mov ip, sp pu Sh {fp, ip,

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Http://blog.sina.com.cn/s/blog_6e5b342e0100m87x.html Arm Assembly programming is essentially a programming of CPU registers. So we need to first find out what registers arm has? How are these registers used? Arm registers are classified into two types: common registers and status registers. Register TypeRegister name in assemblyRegisters actually accessed in each modeUserSystemManagementAbortUndefinedInterruptedFast interruptionGeneral registers and program countersR0 (A1)R0R1 (A2)R1R2 (A3)R2R3

Some things are not complicated, but we do not pay attention to him, or we do not have a good concern, we use LR to do performance testing when there is a very important indicator, response time, we all know this indicator, but also know that this indicator can be found in the results analysis, But how many people know how these values are derived from LR? Today in this article I will give you the secret of

. long __dabt_invalid @ 8 . Long __dabt_invalid @ 9 . Long __dabt_invalid @ A . long __dabt_invalid @ b . long __dabt_invalid @ C . long __dabt_invalid @ d . long __dabt_invalid @ E . long __dabt_invalid @ F Vector_stub is a macro definition: . macro vector_stub, name, mode, correction=0 . Align 5 Vector_\name: . If \correction Sub LR, LR, #\correction . endif @ @ Save R0, lr_ @ (Parent CPSR) @ Stmia sp,

(y_hat, y): return (nd.argmax(y_hat, axis=1) == y).asnumpy().mean()def evaluate_accuracy(data_iter, net): acc = 0 for X, y in data_iter: acc += accuracy(net(X), y) return acc / len(data_iter)Because we have randomly initialized the model net, the accuracy of this model should be close to 1/num_outputs = 0.1.evaluate_accuracy(test_iter, net)# output0.0947265625Training modelDuring the training model, the iteration period number Num_epochs and the learning rate

the new root node */34. } 35. 36./* The two-fork sorting tree with P root is left-handed, */37. /* ProcessingThen p points to the new root node, which is 0 */38 of the roots of the right subtree before the rotation process. void L_rotate (Bitree *p) 39. {Bitree R; R= (*p)->rchild; /* r points to P's right subtree node */42. (*p)->rchild=r->lchild; /* The left sub-Rime of R is connected to the right subtree of p */43. R->lchild= (*P); *p=r; /* p points to the new root node */45

structure of the data message varies with the protocol. The protocol is hierarchical, generally we start with the IP layer, the TCP protocol layer, the UDP protocol layer, and the TCP and UDP protocol layer has the HTTP protocol layer, the FTP protocol layer, the SMTP protocol layer, and so on we see in LR the application layer of the Protocol. In fact, these high-level protocols are a further encapsulation of the underlying protocol. To give a simpl

keyword export, and use the extern in the C language. Of course, the function in the C language itself is the global label. ; Import main Entry // specifies the normal entry point of the program. The following code is a jump command. The entry pseudo Command tells the compiler that the following code is useful and should not be optimized. The compiler may think that this is a bunch of code that does not exist. B coldreset // The first is the jump command, which jumps to the coldreset to execut

the interrupt mode to be executed, to save the current status of the processor, the interrupt shielding bit, and the flag bit of each condition.② Set the corresponding bit in the current CPSR to block the corresponding interrupt and switch the processor mode.③ Save the address (breakpoint address) of the next instruction that causes the interruption to the subroutine link register LR in the interruption mode, so that the interrupted service program c