8051 instruction set

The arm instruction set provides two instructions to directly control the status register (psr,program State Register). The Mrs Instruction is used to transmit the value of the CPSR or SPSR to a register; In contrast, the MSR transmits the contents of a register to CPSR or SPSR. These two instructions are combined to read/write to CPSR and SPSR.Cpsr_c represents

SSE instruction set The SSE (streaming SIMD extensions, single-instruction multi-data stream extension) Instruction Set was first launched by intel in the Pentium III processor. In fact, before piII was officially launched, Intel once published the so-called kni (Katmai new

Xcode instruction set, xcode Instruction Set Currently, ios provides the following instruction sets: I386: macArmv6: iPhone, iPhone E2, iPhone 3G, first generation and second generation iPod TouchArmv7: iPhone 3GS, iPhone 4, iPhone 4S, iPod 3G/4G/5G, iPad, iPad 2, iPad 3, iP

Thumb Instruction Set The thumb command can be seen as a subset of arm commands in the form of compression. It is proposed for the code density [1] and has a 16-bit code density. Thumb is not a complete architecture and cannot expect the processing program to execute only thumb instructions rather than arm instruction sets. Therefore, the thumb command only need

Some manuals are listed in http://blog.csdn.net/gengshenghong/article/details/7008682, where the Intel intrinsic Guide can query all intrinsic functions, Corresponding assembly instructions and how to use, etc., so, the next is not all analysis, the following only part of the analysis, so as to understand how to use these advanced instruction set in C + + code basic methods, as for more instructions to use,

Instruction Set Y86 Instruction Set Operator: addl, subl, andl, and xorl Jump character: JMP, jle, JL, je, JNE, jge, andjg Condition characters: cmovle, cmovl, cmove, cmovne, cmovge, and cmovg Others: Call, pushl, popl, halt Registers % Eax, % ECx, % edX, % EBX, % ESI, % EDI, % ESP, % EBP The stack pointer has % ESP.

All intrinsic functions, corresponding Assembly commands, and how to use these functions can be queried in the intrinsic guide. Therefore, we will not analyze them all in the following sections, to learn how to use these advanced instruction sets in C/C ++ code, the query manual is easy to understand as to how to use more commands. Note: The commands used below may only involve SSE instruction sets, rather

I. Summary In peacetime project development, may use the third party to provide the static library. A, if the. A provider technology is immature, problems can arise when using it, such as: Compile error on the real machine: No architectures to compile for (Only_active_arch=yes, ACTIVE arch=x86_64, valid_archs=i386). Compile error on Simulator: No architectures to compile for (Only_active_arch=yes, ACTIVE arch=armv7s, Valid_archs=armv7 armv6). To solve these problems, you need to know some detail

The Java Virtual Machine directive consists of a byte length, an opcode (Opcode) that represents a particular meaning, and the following 0 to many operands representing this action parameter. Many of the instructions in the virtual machine do not contain operands, only one opcode. If you ignore exceptions, the JVM interpreter can work effectively with the code. Copy Code code as follows: do{ Automatically compute the PC register and remove the opcode from the PC register locati

Apple mobile device processor instruction set ARMV6, ARMV7, armv7s, and arm642014-09-15 09:35 Edit: suiling Category: iOS development Source: Cocoachina 05756ARM Mobile processor instruction set (via Ya Xiang Small build)The ARM processor, known for its low power consumption and small size, is based on arm for almost a

(Via Ya Xiang Xiao Zhu)The ARM processor, known for its low power consumption and small size, is based on arm for almost all handset processors, and is widely used in embedded systems, and its performance is also excellent in the same power consumption products.Armv6, ARMv7, armv7s, arm64 are all arm processor instruction sets, all instruction sets are in principle backwards compatible, such as Iphone4s's C

0. ARM Registers R13:sp R14:LR 1. Jump Instructions Jump instruction is used to implement the program flow jump, in the ARM program there are two ways to achieve the program flow jump:1) Use specialized jump commands.2) write the jump address value directly to the program counter PC. By writing the jump address value to the program counter PC, you can achieve any jump in the 4GB address space, and use it together before jumping MOV lr,pc such as inst

Reprint: http://blog.sina.com.cn/s/blog_7e4015380100tt9j.htmlThe following contains all the directives that can be used in Eclim and provides a brief reference usage.Full Region instruction Set ¶:P Ingeclim-Connect the ECLIMD server.: Shutdowneclim-Close the ECLIMD server.: eclimsettings-Browse/Edit region-wide setting options.Project Project Instruction

Five cycles of a RISC instruction setRISC (Reduced instruction set computer, compact instruction set computer) is abbreviated as a thin instruction set. RISC places the effort of execut

AMMX Technology IntroductionIntel's MMX (multimedia enhanced instruction set) technology can greatly improve the processing power of the application for two-dimensional graphics and images. Intel MMX technology can be used for complex processing of large amounts of data and complex arrays, and the basic unit of data that can be processed using MMX technology can be byte (byte), Word (word), or double Word (

ARMV6 devices: IPhone, IPhone2, iphone3g, first generation, second generation IPod Touch ARMV7 equipment: iphone3gs, IPhone4, iphone4s ipad, IPad2, IPad3 (the New ipad), ipad Mini ipod Touch 3G, ipod Touch4 armv7s equipment: IPhone5, IPHONE5C, IPad4 (IPad with Retina Display) Arm64 devices: iphone5s, ipad Air, ipad mini2 (ipad mini with Retina Display) The options associated with the instruction set in Xcod

ARM instruction Set 2The ARM microprocessor supports load/store instructions for transferring data between registers and memory, which is used to transfer data from memory to registers and the storage instruction to do the opposite.LDR instruction (different from MOV, MOV can only operate universal Register)The LDR

above mentioned factors have some bad effects on the portability of intrinsic function code, but porting the code containing intrinsic function is undoubtedly a lot easier than inline assembly. In addition, the 64-bit platform no longer supports inline assembly.2. SSE intrinsicVS and GCC support SSE directive Intrinsic,sse have several different versions, the corresponding intrinsic is also included in the different header files, if the only one version of the SSE directive is determined to inc

CPU as the core of a computer, its role is irreplaceable. And the CPU itself is only on the block silicon chip on the integration of ultra-large-scale integrated circuits, the number of integrated transistors can reach hundreds of millions, is a very advanced complex manufacturing process, with a fairly high technology content.CPU instruction Set-conceptThe CPU relies on instructions to calculate and contro

Greeting (String name) {System.out.println ("Hello," +name);}} When we compile Bootstrap.java into Bootstrap.class and execute this program, there are a few steps in the JVM's complex execution logic: 1. The JVM first loads this bootstrap.class information into the in-memory method area. The bootstrap.class includes the constant pool information, the definition of the method, and the binary form of the machine instruction