r9 580x

VRRP (Virtual Router Redundancy Protocol, Virtual routing Redundancy Protocol) is a fault tolerance Protocol. By separating physical devices from logical devices, the Router line backup function is well realized! VRRP creates a group of routers in the LAN into a backup group, which is equivalent to a virtual router. hosts in the LAN set their default route next hop to the IP address of the vro. the host in the Network communicates with other networks through this virtual router.The extension dia

add 192.168.9.1 24 sub // configure secondary ip address (to achieve route summary) [R5-LoopBack1] ip add 192.168.10.1 24 sub [R5-LoopBack1] ip add 192.168.11.1 24 sub [R5-LoopBack1] quit [R5] int s1 [R5-Serial1] ospf enable area 1 [R5-Serial1] int lo 1 [R5-LoopBack1] ospf enable area 1 [R5] int s1 www.2cto.com [R5-Serial1] shut [R5-Serial1] undo shut router R9 Configuration: [Router] sysname r9 [

initialization code Analysis 1, _main The entrance to the board-level initialization code is _main. Start the analysis here.suggestions can be and "[Uboot] (Foreign article) Global_data Introduction" and "[Uboot] (chapter) Uboot Relocation Introduction" together look. Code below, removing extraneous code partsArch/arm/lib/crt0. S ENTRY (_main)/* * Set up initial C runtime environment and call Board_init_f (0). */Ldr SP, = (config_sys_init_sp_addr) Bic sp, SP, #7/* 8-byte alignment for ABI c

also the stack address, because the stack is growing downward, So do not have to worry about and Global_data conflict problem @@ 综 at this time R0 storage, is both the address of Global_data, is also the address of the stack mov sp, r0 @@ 综 the stack address r0 stored in the SP/* Set up GDHere, outside any C code */mov R9, r0 @@ 把 global_data address in R9 @@ 把 this time R0 store or Global_data address BL

frequency version of the HD7970, performance is very good, but the price is really expensive, and power consumption is high, on this basis again overclocking basic is impossible. Now AMD has released a new generation of r9-290x, performance than the HD7970 high-frequency version is also strong, overclocking players can also try to find out how much more cards, more worthy of recommendation. And if insist on HD7970, buy

Lab requirements:Set up the topology, import the pre-configuration, and troubleshoot the following errors.1. R4 cannot learn the host entries mounted on R5;2. The OSPF neighbor between R6 and R7 cannot start;3. R4 cannot form OSPF neighbors with R2 and R3;4. R7 cannot form an IPsec neighbor with R8 or R9;5. The host on R5 cannot be pinged to the host on R9;6. Ensure that the packets sent from the host on R5 to the host on R9 with the IP priority of 1

and dcqu allocate two-character memory units Dcw and dcwu allocate a half-Word Memory Unit Data is no longer used in code segments. Ltorg Ltorg is used to declare the beginning of a data buffer pool. Area example, code, readonly Start BL func1 Func1; subroutine ; Code LDR R1, = 0x55555555; LDR R1, [PC, # offest to literal Pool 1] ; Code MoV PC, LR; end of subroutine Ltorg; define data buffer pool 55555555 Data Space 4200; Allocate 4200 bytes of memory units from the current position End; the

From the Internet found a neon command optimization yuv420 to rgb24 code, in the cortex-A8 architecture, clock speed 1g CPU for a frame of qcif (176x144) data test, in addition, compared with the popular algorithm written in C on the Internet, it is found that the speed of the former is more than 700 times that of the latter: the former uses 1000 ms for 112 cycles, and the latter uses 88645 Ms. The related code is as follows: Assembly Code Area |. text |, code, readonly; name this block of code

handlexxx to Stack ldmfd sp !,{r0,pc}; POP the Work register and PC (jump to ISR) You can see that the HANDLERIRQ is a standard interrupt handling process (which is being encapsulated by using macros): Save the scene first, and then jump to handleirq , from handleirq returns to the scene after returning. HANDLEIRQ is actually a function pointer that we can point to a handler function in the program. Here we point to isrirq , we read intoffset Register value, Add the starting value of the e

1. Job Requirements: Using VRRP to implement backup between routers Achieve streaming traffic between the two routers (improve efficiency) Use channel technology to improve security 2. Topology Map 3. Equipment Description: Router: h3c quidway R2621 (R9 R6) Switch: H3C quidway S2000 (two-layer switch S2) H3C Quidway s3526e (three-layer switch S1) 4. Equipment Configuration 4.1 Basic configuration: Router

The company's website officially opened the new IMac with the Retina 5K screen. It all came so suddenly, we know that the 27-inch Retina 5K imac is a new product that Apple has been launching shortly before, with a resolution of up to 5K that has attracted much attention and even a lot of design and professional work. From the configuration to see the new 27-inch Retina 5K imac is more like the original low version, in the hard disk, graphics and other parts of the same time, the price is also n

counter {VAR} of the memory table is set to this address value. When the command contains this item, the first address of the structured memory table is the sum of the expr and Base-register content.Instructions for use: MAP and FIELD pseudo operations are used together to define a structured memory table structure.Example: MAP pseudo operationMAP fun; fun is the first address of the memory tableMAP 0x100, R9; the first address of the memory table is

This May, IDC, an almost "explosive news" of the smartphone shipments rankings, so that Oppo "forced" to go to the front of the media flash, in this ranking, "Oppo squeezed out of millet", in domestic mobile phones in the second only after Huawei.This is not only a simple ranking beyond, Xiaomi is the "Internet Model" Pathfinder, OPPO, Vivo is a typical representative of the bottom channel, the ranking changes behind, is actually two channels of the market game, this time some people think it is

transfer sessionLdrne FP,[R4], #4Strne FP,[R5], #41b BNEClears uninitialized data segments, clears the block for C code execution-mov fp, #0 @ Clear BSS (and Zero FP)Wuyi 1:cmp R6, R7STRCC FP, [R6], #41b BccPerforms a save operation. The most important thing here is the SP pointer loading! After the statement the SP has pointed to the kernel stack, the conditions for executing C code are ready (code snippet OK, initialization data segment OK, uninitialized data segment Ok,stackok)Ldmia R3,{r4,

　　 What is the difference in the power consumption of mainstream graphics? more and more players are starting to focus on the power design of the graphics card. To this end, we have the current AMD and Nvidia mainstream graphics products have been tested to see the different products in the whole card power consumption, PCI-E slot to take electricity, video card external access to some of the different. RX 480 video card "PCI-E slot power over" event caused the player to power the video card d

/*This article is prepared by Mo Gray Ash, reproduced please indicate the source.mo Ash Gray mailbox: [email protected]*/1. Vulnerability descriptionThe audio driver ACDB provides an IOCTL system interface for the application layer to invoke, however, it does not do a valid bounds check when processing the passed in parameters. Applications can achieve the purpose of elevation of privilege by/dev/msm_acdb device files.2. Vulnerability AnalysisThe original code is as followsif (Size 0) {Pr_err("%

problem, 1.2 Special-Purpose registers Some of the registers in the ARM processor have a special purpose as shown below: Register Device Use R0-r3 Passing parameters and return values R7 Frame pointer, pointing to the handover of the parent function to the called child function in the stack R9 Reserved by the system before iOS3.0