Some problems encountered during the compilation of MIPS-Based C language compiler programs, mips Compiler
When I used Java to write a C-(simplified C Language) compiler, I encountered a long problem: After testing C-code input and executing parser and typechecking, A complete MIPS code is successfully compiled. However, when the
From: http://www.kernelchina.org /? Q = node/273
In the mips architecture, a maximum of four co-processors are supported ). Cp0 must be implemented in the architecture. It controls the CPU. MMU, exception handling, multiplication and division, and other functions depend on the cp0 of the coprocessor. It is one of the essence of MIPS and opens the door to the MIPs
Because ECOs needs MIPS-elf-GCC to compile the kernel, the GCC compiler of the latest gcc4.4.1 version is compiled today. The steps are as follows:
First, you must export the following variables before compiling:
Export target = MIPS-elf
Export prefix =/usr/local/$ Target
Export Path = $ path: $ prefix/bin
Echo $ Target
Echo $ prefix
Echo $ path
==============================
Compiling environment: fc9
Th
Http://blog.yaabou.com /? P = 96
Note that MIPs has the pipeline visibility, so the next command following the jump command will be executed before the jump is executed. This is called Branch latency. However, the compiler hides this feature, but you can set ". Set noreorder" to disable the compiler from reorganizing the code order.
Each Board has its own lDs file. This is mainly used to describe the instructions generated by the compilation and the
In order to compile the program on the computer composition and design-hardware/software interface, however, GCC on UbuntuX86 can only be compiled into the X86 assembly.
Sourcery codebench out a gcc toolchain for compiling to the MIPS assembler.
Our usual compilation, called Local compilation, is compiled into a compilation under the current platform. Instead, cross-compilation can be compiled into other platforms (the platform of the compiled platfor
Using JavaScript to simulate MIPS multiplication, mips Multiplication
This example describes how to simulate MIPS multiplication in JavaScript. Share it with you for your reference. The details are as follows:
I hope this article will help you design javascript programs.
Css attribute abbreviation set, css abbreviation set
As a front-end attacker, CSS is definitely the foundation, but it is also difficult to grasp the foundation. Today, we will summarize the simplified CSS attributes that are easy to write incorrectly.
1,Background
Background color: background-color basic syntax: background-color: transparent | color
Background image: background-image basic syntax: backgrou
CSS Abbreviation and how to optimize the skills, CSS abbreviation optimization skills
CSS abbreviationIt refers to simplifying the CSS attribute of multiple rows into one row, also knownCSS code optimizationOrCSS abbreviation. The biggest benefit of CSS abbreviation is that it can significantly reduce the size of CSS f
The ABI is the abbreviation for the application Binary interface, which identifies the operating mode of the processor and the encoding format of the specification target file.
The MIPS instruction set architecture formally supports the 64-bit mode of operation since MIPS3, so the code can follow O32 (o meaning old), N32 (n meaning new) and N64 Abi.
O32 and N64 are pure 32-bit and 64-bit modes
Instruction length and number of registersAll MIPS commands are 32-bit, and the Instruction format is simple. Unlike x86, The x86 instruction length is not fixed. Take 80386 as an example,The instruction length can be 1 byte (for example, push) to 17 bytes.CodeThe density is high, so the MIPs binary file is about 20% ~ larger than that of X86 ~ 30%. Fixed-length commands and formatsThe simple advantage is t
Http://blogold.chinaunix.net/u1/40363/showart_434186.htmlchapter I MIPS CPU Architecture Overview
Chen Huai Lin
1. Preface
This article introduces the MIPS architecture, focusing on its register conventions, MMU and storage management, exception and interrupt handling, and so on.
Through this article, we hope to provide a basic concept of contour for readers who are interested in
I will upload my new book, "Write My Own processor" (not yet published), today is the third article. I try four articles a week.MIPS instruction set architecture since the advent of the 80 's. has been upgrading, from the initial MIPS I to MIPS V, to support the expansion module MIPS32, MIPS64 series, and integrated code compression technology microMIPS32, microMIPS64. Each
After OpenWrt compiles the tool chain and SDK, you may have the following error:
zchx@zchx-system-product-name:~$ mips-openwrt-linux-g++ mips-openwrt-linux-uclibc-g++.bin:environment Variable " Staging_dir "Not defined
The solution is simple, that is, compile the SDK also choose to compile, in the compiled SDK, including the tool chain. The tool chain here will not be an error. Good time.Zchx@zchx-system-p
Http://blog.csdn.net/menuconfig/archive/2007/08/23/1756082.aspx
This chapter will show you how to read and write the assembly code under the MIPs system. The MIPs assembly code looks very different from the actual code because of the following reasons:
1. MIPS assembler compiler provides a large number of predefined macro commands (extra macro-instruction ). Th
Structure and long design cycle.
(7) user use:ProcessorSimple structure, regular instructions, easy to grasp, easy to learn and use; CISC microProcessorComplex Structure, powerful functions, and easy to implement special functions.
(8) Application Scope: due to the determination of the Proteus command system and the specific application fields, it is more suitable for dedicated machines, while CISC is more suitable for general machines.
Ii. x86, arm, MIPSArchitecture
X86, arm, and
This part of the record is kernel upgrade, before on the FPGA ran 2.6.29 kernel to verify the function of some IP.The source code for Android from Google's website is not part of the kernel, and kernel needs to be downloaded separately.A version of 3.0.72 was found after downloading from Google.So the record here is the process of kernel upgrading from 2.6.29.4 to 3.0.72.The first idea is to find a 3.0 on the MIPS architecture of the config file, and
There's nothing wrong with configure.My configure is:./configure-prefix/opt/qt-jz-xplatform qws/linux-mips-g++-embedded MIPSConfigure passed, but when make, there was mips-linux-gcc:commond not fount!I'm MIPSL-LINUX-GCC, and I've cross-compiled a Hello world.The errors that occur when make are:MAKE[1]: Entering directory '/root/desktop/download/qt-jz/src/corelib 'mips
Reprinted from http://blog.csdn.net/gujing001/article/details/8476685
MIPS Universal Register
MIPS has 32 general-purpose registers ($0-$31), the functions of each register and the use of the assembly procedures are as follows:
The following table describes the aliases and uses of 32 universal registers
REGISTER
NAME
USAGE
$
$zero
Constant 0 (constant value 0)
"NetEase technology News" June 16, the Chinese self-developed CPU godson recently obtained MIPS authorization. MIPS Technologies Monday, the Institute of Computing Technology of the Chinese Academy of Sciences (MIPS32) has obtained the authorization of the MIPS64 architecture, which will be used to develop the godson CPU.
The pain of the godson, card at the patent gateway
"The godson's supporters hope one
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