Alienware Aurora R5 Gaming desktop evaluation.
In fact, Alienware Aurora R5 is a product designed for VR devices, and we all know that VR-display devices such as Oclus rift often require a higher hardware configuration, so Aurora R5 is equipped with i7-6700k overclocking processors and dual GTX 1070 SLI's unique hardware mix is sufficient to meet th
. Test whether cygwin has been installed.
Run cygwin and enter cygcheck in the pop-up command line window.The-C cygwin command prints the current cygwin version and running status. If the status is OK, cygwin runs normally.
Then input gcc-version, G ++ -- version, make-version, and GDB-version in sequence for testing. If both print the published version information and some description information, I am very happy to tell you, your cygwin installation is complete!
3. Configure ndk Environme
The toolchain in ndk R5 can finally support the makefile compilation system. However, it takes a lot of effort to support GNU libc ++, and the documentation is too lacking. The following is a simple successful case:
First, we will write a simple C ++ program named test. cpp, which contains the basic features of iostream, vector, typeid, and libc ++:
# Include
Then let's write our makefile:
Ndk_home =/developer/android-ndk-
. Test whether cygwin has been installed.
Run cygwin. In the displayed command line window, enter the cygcheck-C cygwin command to print the current cygwin version and running status. If the status is OK, cygwin runs normally.
Then input gcc-version, G ++ -- version, make-version, and GDB-version in sequence for testing. If both print the published version information and some description information, I am very happy to tell you, your cygwin installation is complete!
3. Configure ndk Envir
, enter the cygcheck-C cygwin command to print the current cygwin version and running status. If the status is OK, cygwin runs normally.
Then input gcc-version, G ++ -- version, make-version, and GDB-version in sequence for testing. If both print the published version information and some description information, I am very happy to tell you, your cygwin installation is complete!
3. Configure ndk Environment Variables
1. First find the installation directory of cygwin and find a home \
2. Open t
can affect viewing. If there is no strict division of its quality should be similar to the TC version.5, R5 (Russia 5 region version)Russian version 5 DVD, because the dubbing is Russian, so need to find the English voice track, R5 version is a synthetic version (Russian 5 DVD Video + other channels to obtain the English audio track), R5 version of the quality i
In the sources/cxx-STL/gnu-libstdc ++/readme file of ndk R5, it says:
To use it, define app_stl to 'gnustl _ static 'in your application. mk.
That is to say, if we add the following in the application. mk file:
App_stl: = gnustl_static
You can use GNU libstdc ++. This version supports C ++ exception and rtti. (I tried stlport in ndk R5. rtti is not supported. If typeid is used, an error is returned)
virtual machines such as: Virtual Box, Qemu, VMware;published the ISO archive for live CD, as well as the live USB image archive;Support wireless network and can be opened and set up from the GUI;New installation mode, can be installed to the Ext3/ext2/ntfs/fat32 disk format;Can be loaded into the hotplug of firmware;Improved keyboard support, can use USB keyboard;Press the power button to start or shut down, ctrl+alt+del restart, you can also use the SU command in the terminal simulator to tak
installation. Confused.
B. view the ndk Doc.
How to Use ndk in docs/howto. txt.
There are two ways to compile:
1) compile in the target project directory:
$CD android-ndk-r5/samples/Hello-JNI
Enter the example directory
Execute the ndk-build script
2) Compile in any directory:
$Ndk-Build-C $ ndk/samples/Hello-JNI
Use-C to point out the project directory path
Note: No matter which one is compiled, after successful compilation, the libs and
) + (2*125*200) + (2*200) +2
= (2*125+3) *200+3⑥
=50603μs
≈50ms
The formula is arranged by ⑥ (only above) delay time = (+3) * Outer cycle +3⑦
Description: Del This subroutine has five instructions, and now analyzes the number of times each instruction is executed and the elapsed time.
The first sentence: MOV R7, #200 is executed only once in the entire subroutine, and is a single-cycle instruction, so it takes time 1μs
The second sentence: MOV R6, #125 from ② see ④ as long as r7-1 not 0, will re
text section of kernel.__bss_start is the end of __data_loc and the beginning of the BSS section.As you can see, kernel must prepare the text segment with the initialized data segment, which is not required for uninitialized data segments and stack segments! Just set the stack pointer and the heap start address just fine! So there's no definition of stack and heap after 22 lines!. Type __switch_data,%object__switch_data:. Long __mmap_switchedA. Long __data_loc @ R4. long __data_start @ R5A. Lon
(16) label: HBCD function: convert a single-byte hexadecimal integer to a single-byte BCD code integer
Entry condition: The hexadecimal Integers of A single byte to be converted are in the accumulators.Exit information: the converted BCD code INTEGER (ten digits and one digit) is still in the accumulators A, and the hundred digits are in R3.Affected resources: PSW, A, B, and R3 stack requirements: 2 bytes
HBCD: mov B, #100; separates hundreds of BITs and stores them in R3.DIV ABMOV R3,Mov a, #1
Analysis of OSPF external routes E1 and E2 1. when ospf publishes an external route to a single asbr, 1.1 the equivalent path in the OSPF domain of a single ASBR re-publishes the rip route on the ospf of r2. When the release type is e2 or e1, there will be two routes on r5, respectively through r3 and r4 to 10.1.1.0 (because they are equal-cost routes, this part is relatively simple, not to mention) regarding the differences between ospf external rout
Tags: command start It's file DDR introduction MDK function FirstLearning Goals:Learn about Arch/arm/kernel/head. s functions implemented as the first file launched by the kernel!The previous analysis of the kernel makefile, you can know arch/arm/kernel/head. S is the first file that the kernel starts. In addition, when U-boot calls the kernel, the R1 Register Stores "machine type ID", which is used by the kernel.Open Arch/arm/kernel/head. s file, you can see that the Stext function is the kerne
Recently saw a cool drop-down refresh effect on the Web (http://iostuts.io/2015/10/17/elastic-bounce-using-uibezierpath-and-pan-gesture/). I tried to achieve the jelly rebound effect.Effect
DEMO
Because the writing is not very good-.-, it is recommended to download the demo first, combined with the following analysis, will be good to understand the point. Address Https://github.com/Resory/RYCuteView
Logic
P1, the blue part of the graphic is a cashapelay
hardware. Whether it's robots, drones or other smart hardware, this is an inevitable trend. First we look at the boot file head of the kernel. S . section ". Text.head", "Ax" . Type stext,%functionentry (stext) msr cpsr_c, #PSR_F_BIT | Psr_i_bit | Svc_mode @ Ensure svc MODE @ and IRQs disabled MRC P15, 0, R9, C0, C0 @ Get processor ID BL __loo Kup_processor_type @ r5=procinfo r9=cpuid
Router> en
Router # conf
Starting ing from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
Router (config) # host R4
R4 (config) # int lo4
% LINK-5-CHANGED: Interface Loopback4, changed state to up
% LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback4, changed state to up
R4 (config-if) # ip add 192.168.4.1 255.255.255.0
R4 (config-if) # no shut
R4 (config-if) # exit
R4 (config) # int s0/1/0
R4 (config-if) # ip add 192.168.45.4 255.255.2
Introduction: like the standard OSPF protocol, the is-is protocol is a link-state dynamic routing protocol, but it is much optimized than OSPF, reducing the routing type and LSA flooding, it is also widely used in the current network.
Tutorial topology:
650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M02/49/20/wKioL1QPrKWg-uTRAAHkPOs26io388.jpg "Title =" 1.png" alt = "wKioL1QPrKWg-uTRAAHkPOs26io388.jpg"/>
Objective: To run the is-is protocol on the R1-
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