how to multiply in mips

To add a system call, follow these steps:1. Add your system call entry to the system call table sys_call_table of the kernel. Select the file to be modified based on the number of kernel bits (32/64 bits:ARCH/MIPS/kernel/scall32-o32.S ------> 32bit KernelARCH/MIPS/kernel/scall64-64.S ------> 64bit Kernel 64bit kernel, if compatible with 32 bit Abi (o32, n32), you also need to modify scall64-o32.S or scall64

The difference between Ioremap and ioremap_cachable in Linux (MIPS architecture) In Arch/mips/include/asm/io.h/** Ioremap-map bus memory to CPU space* @offset: Bus address of the memory* @size: Size of the resource to map** Ioremap performs a platform specific sequence of operations to* Make bus memory CPU accessible via the readb/readw/readl/writeb/* Writew/writel functions and the other Mmio helpers. Th

Cross-compilation tool for MIPS architecture Some MIPS-based set-top boxes provide six cross-compilation tools GCC, as follows:· Mipsel-Linux-gcc· Mipsel-Linux-uclibc-gcc· Mipsel-uclibc-gcc· MIPS-Linux-gcc· MIPS-Linux-uclibc-gcc· MIPS-uclibc-gcc What are the differences be

What mips sde knows? 1. mips sde Cognition1. Sde (software development environment) is a cross-Development System of software engineers. It is a component of the MIPs software toolkit (MTK. 2. MTK not only includes SDE, but also other tools and libraries to accelerate the development of high-quality, high-performance applications that run on the

TLB Miss is the core process of memory management in MIPS. In the previous article on MIPS, TLB miss related principles, this article focuses on the Linux kernel code implementation. TLB Refill Initialization In the kernel boot process, the TLB refill exception is initialized and the corresponding processing interface is set. The main processes are as follows (take r3k as an example): Start_secondary per_

The program operation effect chart is as follows: This article directory: 1. Introduction 2. Simple Requirements Analysis 3. Core function implementation 4. Interface and use 5. Test 1. Introduction: 1.1 Experimental Requirements: 1) Read in interactively or from a file (enter the filename suffix. mips) input a part of MIPS assembler, choose different execution mode, can give the program in the

Explanation of the MIPS architecture Linux trojan for vromips Most Windows operating systems are installed on PCs of individual users, while Linux systems are widely used on servers. Therefore, Linux systems have fewer Trojans than Windows systems. Due to the application limitations of the MIPS architecture, Linux trojans on the MIPS architecture are rare. Recent

64-bit multi-core MIPS exception and interrupt kernel code analysis (4) 1.3 initialization of other exception entries The entry for other exceptions is initialized: [ARCH/MIPS/kernel/traps. C] Void _ init trap_init () { ...... /** Copy the generic exception handlers to their final destination.* This will be overriden later as suitable for a participant* Configuration.*/Set_handler (0x180, except_vec3_gene

Tags: lin use gdb arc inux stack with file systemHow to run/debug binary arm/mips architecture on a Linux host Original link [email protected]The binary used in this paper is from the Add,typo two questions of PWN on Jarvis OJ. The main purpose of this tutorial is to make the PWN of other system architectures, so the first step is to set up the environment, search online a wave, found a lot of tutorials are need Raspberry Pi, chip and ot

Http://blogold.chinaunix.net/u1/40363/showart_434187.htmlchapter II register conventions For the development of a CPU, it is very important to master the register conventions of the CPU in which it works. The MIPS architecture provides 32 GPR (general purpose register ). The usage of these 32 registers is roughly as follows: REGISTER NAME USAGE$0 $ zero constant 0 (constant value 0)$2-$3 $ v0-$ return value of v1 function call (values for results and

Armeabi armeabi-v7a mips x86 understanding, armeabiarmeabi-v7aIntroduction Armeabi, armeabi-v7a, mips, x86 how to understand? ABI: indicates the instruction set based on which the application is compiled. ABI has four types: armeabi, armeabi-v7a, mips, and x86, which indicate the cpu type. Armeabi default options, Supports ARM * v5TE-based devices Supports soft f

/************************************************************************************** Mips-elf's cross compilation environment originates from an article in the network, but I can't find the source. At the same time, after my Some modifications, and finally I successfully configured this cross compilation environment in Slackware 12.0 Linux. As for Other versions of Linux I believe should be able to compile successfully, but I will be in other Linu

Related Software Packages: qt-embedded-free-3.3.8.tar.bz2, konquorer3-embedded-0.2-20060121.tar.bz2Command Execution sequence: Export qtedir =/root/qt-embedded-free-3.3.8Export cc = mipsel-Linux-GNU-gccExport CPP = 'mipsel-Linux-GNU-gcc-e'Export cxx = mipsel-Linux-GNU-G ++Export cxxcpp = 'mipsel-Linux-GNU-G ++-e' . /Configure -- prefix =/usr/local/konquerore -- Host = i686-pc-linux-gnu -- target = MIPS-Linux -- disable-Debug -- enable-QT-embedded -- e

Process Analysis **************************************** **************** 1. After the system is powered on Entry (_ start) program entry point is _ start board/mingddie/u-boot.lds 2. _ start: CPU/MIPS/start. s 3. La T9, board_init_f assign the board_init_f address of the function to T9The instruction in which J T9 redirects to the address point saved in the T9 registerJump to Ram and execute C codeSome information is printed here.3.1 board_init_f (

Work needs. We are going to port uboot on MIPS for two days. Now we can record the environment setup method as follows: 1. Prepare the compilation toolUboot MIPS part using mips_4kc-gcc compilation, so can not use the GNU development package MIPS-elf-GCC under cygwin, mainly because uboot using the GP pointer, when MIPS