8051 instruction set

ADC addition carry incoming addition command data processing class Arithmetic Operation Command Add addition instruction data processing class arithmetic operation instruction And logic and data processing class arithmetic operation commands BbranchBIs the simplest branch. OnceBCommand, the ARM processor will jump to the given address immediately and continue to execute from there. Note that the actual valu

comparison jump instruction);bgeza1、Bgeza11、bltza1、Bltza11(If you need, these instructions are the original machine instructions for the conditional function call); 　　 Breakpoints and trap directives: Break(Produces an exception of type "Breakpoint");SDBBP(GenerateEJTAGException breakpoint instruction);Syscall(produces a convention for the type of exception used by the system call);Teq、Teqi、Tge、Tgei、TGEIU、

A serial port tool uses the AT command to communicate with the data card. I read some documents when I first came into contact with AT commands, but I am still confused about how to use these commands. Because the general document does not have specific examples returned. It is best to use a mobile phone, data card, modem, and other simple query tests to experience it. Of course, we need to use a Super Terminal for writing and querying. It is very convenient, very common, and very simple. In gen

Assembly Instruction Set 1. General Data Transmission commands MoV transfers words or bytes.Movsx first extends the symbol and then transmits it.Movzx is not extended before transmission.Push pushes words into the stack.Pop pops up the word stack.Pusha pushes ax, CX, dx, BX, SP, BP, Si, di into the stack in sequence.Popa pops up the stack of DI, Si, BP, SP, BX, dx, CX, and ax in sequence.Pushad pushes eax,

Data transmission Instruction Set MoV Function: sends the source operand to the destination operand. Syntax: mov destination operand, source operand Format: mov R1, R2 MoV R, m MoV M, R MoV R, Data XchgFunction: Exchange data of two operands.Syntax: xchgFormat: xchg R1, R2 xchg M, r xchg R, m Push, popFunction: pushes the operand to or from the stack.Syntax: Push operand pop operandFormat: Push R push m pus

Efficiency. Vi is short for "visualinterface" and vim is viIMproved (enhanced version vi ). In general system management and maintenance, vi is enough. if you want to use code to highlight it, you can use vim. What is VI? Vi (vim) is a commonly used editor on Linux. by default, vi (vim) is installed in many Linux distributions ). There are many vi (vim) commands, but if they are used flexibly, the efficiency will be greatly improved. Vi is short for "visual interface", and vim is vi IMproved (en

steps are taken in the complex JVM running logic: 1. First, the JVM will first load the Bootstrap. class information to the Method Area in the memory. Bootstrap. class contains constant pool information, method definitions, and binary machine commands implemented by compiled methods. All threads share a method zone, the Instruction Set for reading method definitions and methods. 2. Then, JVM will creat

The ARM7 processor has two instruction sets: 32-bit ARM instruction set, 16-bit thumb instruction set. 1> ARM Instruction set: High efficiency, high code density 2> Thumb

Only VS2002 and above support the SSE command function library Currently, most CPUs (Intel and AMD) on the market support the SSE instruction set. The SSE command function must contain the following header files: # Include The details of the SSE command are not described in detail here. Here we only talk about the batchcompute function. However, this batch operation only processes four 32-bit characters

The arm instruction set is relatively simple. This article describes the important and difficult-to-understand aspects of arm instruction sets. I. The arm instruction set is 32-bit, The program starts from the arm instruction

The processor uses the ARMv6-M thumb instruction set, including a large number of 32-bit instructions using the thumb-2 technology. Table 7-22 lists the Cortex-M0 instructions and their cycles. The cycle count is based on the system in the Zero Wait state. Table 7-22 Cortex-M0 instructions and their cycles Operation Description Sort order Weekly Move 8-bit immediate Movs Rd,

of the Java Virtual Machine is limited to one byte, and the parameter length alignment of the compiled code is discarded to obtain the short and concise compilation code, even if the JVM implementation may be paid a certain performance cost. Because the operation code can only have one byte length, the number of instruction sets is limited. It is not assumed that the data is aligned, which means that when the data exceeds one byte, you have to re-cre

Cmd.exePath path The file name of the executable file is set to an executable file.CMD launches a Win2K command Interpretation window. Parameters:/eff,/en Close, open command extension, more details see CMD/?REGEDIT/S registry File name Import registry, parameters/s refers to quiet mode import, without any hint;regedit/e registry File name Export RegistryThe cacls filename parameter displays or modifies the File access control List (ACL)-when it is f

Some il language explanations: Jump command set Public field static beq if the two values are equal, the control is transferred to the target command.Public field static beq_s if the two values are equal, the control is transferred to the target command (short format ).Public field static Bge if the first value is greater than or equal to the second value, the control is transferred to the target command.Public field static bge_s if the first value

Windows Instruction Set Cmd.exe --------- cmd Command PromptChkdsk.exe ----- chkdsk disk checkCertmgr. msc ---- Certificate Management UtilityCalc -------------- start CalculatorCharmap -------- start character ing tableCliconfg --------- SQL Server Client Network UtilityClipbrd --------- clipboard ViewerConf ------------- Start netmeetingCompmgmt. msc --- Computer ManagementCleanmgr ------- garbage collec

application cannot directly write r700 local memory, but it can command r700ProgramAnd data are copied between system memory and r700 memory. There are two methods for writing CPU to GPU memory: 1. Request the DMA engine of the GPU to write data to it by pointing to the location of the source data on the CPU memory, and then pointing to the offset in the GPU memory to be written. 2. Load a kernel and run it on the shader. The shader accesses the memory through the PCIe connection, processes

int, if one is greater than the second one, jumps If_icmpge Branchbyte1,branchbyte2 stack pops two int, if one is greater than or equal to the second, jump lcmp Pop two long from the stack, put the result-1, 0, 1 into the stack Fcmpg Pop two float from the stack, put the results-1, 0, 1 into the stack Fcmpl Pop two float from the stack, put the results-1, 0, 1 into the stack Dcmpg POPs two double from

Register:Register number Symbol Name purpose0 always 0 looks like a waste, actually very useful1 at reserved for assembler use2-3 v0,v1 function return value4-7 a0-a3 several function parameters8-15 t0-t7 Temporary Register, sub-process can be used without saving24-25 T8,t9 Ibid.16-23 S0-S7 Register variable, a sub-procedure must be saved before it can be usedThen recover before exiting to retain the value required by the caller26,27 K0,K1 reserved for exception handling function useGP global po

(f) registers. Previous vector (PV)-- R; no; 1; 128 (4*32-bit); registers that contain the results of previous Alu. [x, y, z, w] operations ). This status continues only for one ALU clause. Previous scalar (PS)-- R; no; 1; 32; a register that contains the results of previous Alu. Trans operations. This status continues only for one ALU clause. Local Data Sharing (LDS)-- R/W read: 16 KB; write: 16 to 256 bytes. Each thread can both read and write; no; each SIMD of the On-chip memory is shared

For more information about realboard, visit the official website www.hugacy.com. The fastest arm Instruction Set Simulator (twice the qemu performance) can directly run elf and wince programs. (Including test code)This is the fastest emulator for ARM, 2x faster than qemu, it is available to run program of ELF and wince. (speed test supported DED) Results of speed testing at 3.0 GHz and XP: E:/work/