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,
Basic setup note generate key pairPort 22#RSAAuthentication Yes # using pure RSA authentication!? For version 1 only!Pubkeyauthentication Yes # Does it allow public Key? Of course! Only version 2Authorizedkeysfile. Ssh/authorized_keys # above this in the settings to use the password login without the account, then the account's storage file name!Passwordauthentication Yes do you want to allow public Key? Of course! Only version 2#PermitRootLogin Yes to allow root login!
program, and ngui will automatically stretch the image. So you need the art to put this 960x640 image in a 1024x1024 image, so that the image will not stretch, as shown in, just like this, the size of this image is 1024x1024, but in the program, only 960x640 is cut through the genie, so this image will not be stretched in the iPhone or android. Next is the material, and there are also some requirements for the selection of the material coloring device. as shown in, please select your material
equal to the displayed size value.
For example, if art shows you a 960x640 image, you directly put it in the program, and ngui will automatically stretch the image. So you need the art to put this 960x640 image in a 1024x1024 image, so that the image will not stretch, as shown in, just like this, the size of this image is 1024x1024, but in the program, only 960x640 is cut through the genie, so this image will not be stretched in the iPhone or android.
Next is the material, and there are a
, 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
foreground and background color "X"Toggle Standard mode and quick mask mode "Q"Standard screen mode, full-screen mode with menu bar, full-screen mode "F"Temporarily use the Move tool "Ctrl"Temporarily use the color-absorbing tool "Alt"Temporarily use the Hand tool "space"Open the tool options panel "Enter"Quick Input Tool options (at least one adjustable number in the current tool options panel): "0" to "9"Cycle through the selection brush "[" or "]"Select the first brush "Shift" + "["Select th
foreground and background color "X"Toggle Standard mode and quick mask mode "Q"Standard screen mode, full-screen mode with menu bar, full-screen mode "F"Temporarily use the Move tool "Ctrl"Temporarily use the color-absorbing tool "Alt"Temporarily use the Hand tool "space"Open the tool options panel "Enter"Quick Input Tool options (at least one adjustable number in the current tool options panel): "0" to "9"Cycle through the selection brush "[" or "]"Select the first brush "Shift" + "["Select th
image "Ctrl" + "S" Save As ... "Ctrl" + "Shift" + "S" Save Copy "Ctrl" + "Alt" + "S" Page settings "Ctrl" + "Shift" + "P" Print "Ctrl" + "P" Open the Presets dialog box "Ctrl" + "K" Displays the preset dialog box that was last displayed Alt + Ctrl + K Set general Options (in Presets dialog box) "Ctrl" + "1" Set "Save File" (In Presets dialog box) "Ctrl" + "2" Se
" Hand Tool "H" zoom Tool "Z" default foreground and background color "D" toggle foreground and background colors "X" toggle standard mode and quick mask mode "Q" standard screen mode, full screen mode with menu bar, full screen mode "F" temporarily use the Move tool "Ctrl" temporarily use the Color picker tool "ALT" temporarily use the hand tool "space" to open the tool options panel "Enter" Quick input tool options (the current tool options panel has at least one adjustable number): "0" to "9"
entire layer with the background color "CTRL" + "BackSpace" or "Ctrl" + "Del"Fills the selected area or entire layer with the foreground color "alt" + "BackSpace" or "alt" + "Del"Pop up the Fill dialog box "Shift" + "BackSpace"Populate "Alt" + "Ctrl" + "Backspace" from the historyOpen the Color Settings dialog box "Ctrl" + "Shift" + "K"Open the Pre-Adjustment Manager dialog box "Alt" + "E" release and press "M"Preset brushes (in the Pre-Adjustment Manager dialog box) "Ctrl" + "1"Preset color st
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
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
state (top left, top right, bottom left, and bottom right). The implementation code is as follows:
Point p = new Point ();
P. X = MousePosition. X + 10;
P. Y = MousePosition. Y + 10;
Size s = Screen. PrimaryScreen. Bounds. Size;
If (p. X> s. Width-this. Width)
P. X-= this. Width + 20;
If (p. Y> s. Height-this. Height)
P. Y-= this. Height + 20;
This. Location = p;
Now, I will attach all my code below:
Using System;
Using System. Collections. Generic;
Using System. ComponentModel;
Using Sy
For more information, see. LoadRunner's script language is actually no different from C. Many of his internal mechanisms are implemented by C.It is just a "Class C"So I will analyze it from several aspects.1: defining constant variables is the same as C2: The parameters of the LR function are a little different from those of C. In LR, the variables of C are different from those of LR.No C variable can be di
;**; **************************************** **************************************** ************************/
Software interruptionSoftwareinterruptLDR sp, stacksvc; reset the stack pointerStmfd SP !, {R0-R3, R12, LR}; parameter, IP (R12), LR into Stack. (These are the stack structures for the current processor Mode)MoV R1, SP; R1 stores the stack pointer of the parameter storage location, essentially th
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 execute
B enter_undef; undefinedin
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