iload

Alibabacloud.com offers a wide variety of articles about iload, easily find your iload information here online.

LM2596 Power Buck Regulator (150KHZ,3A) 020

Welding temperature T package (Solder, 10 sec) +260°c Maximum junction temperature + 150°c Operating conditions: Temperature range -40°c≤tj≤+125°c Supply voltage 4.5V to 40V lm2596-3.3 electrical Parameters Description: The item corresponding to the standard font is suitable for Tj=25℃, and the items corresponding to the bold text are suitable for the full temperature range. Symbol Significance Test conditions Typical values(Note 3) Limit value(Note 4) UnitLimit

Java Synchronized Keyword implementation Synchronization (ii)

: int i = 0;15 goto//Jump-to-loop condition check//This is the start of the body of the A for LOOP18 aload_0 Push the object ref at LOC var 0 (the This ref)//Pop object ref, push ref to instance variable IntArray19 GetField #4 arraylength//POP array ref, push int array length23 iconst_1/push Constant int 124 Isub//Pop II INTs, subtract, push int result25 iload 4//push int at local var 4 (i) 27 Isub//Pop ints, subtract, push int

Java bytecode Instruction Set Usage Details

bytes, you need to reserve the corresponding space for alignment. The length of the operation code 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 t

Javap (disassembly command)

. toString :() Ljava/lang/String; 32: Invokevirtual #9; // Method java/io/PrintStream. println :( Ljava/lang/String;) V 35: Return Int get (); Code: 0: Iconst_1 1: Istore_1 2: Iconst_2 3: Istore_2 4: Iconst_3 5: Istore_3 6: Iconst_4 7: Istore 4 9: Iconst_5 10: Istore 5 12: Bipush 6 14: Istore 6 16: Iload_1 17: Iload_2 18: Iadd 19: Iload_3 20: Iadd 21: Iload 4 23: Iadd 24: Iload 5 26: Iadd 27:

An in-depth understanding of jvm06--bytecode instruction introduction

no assumption that the data is aligned, this means that when the virtual machine processes data that exceeds one byte, The structure of specific data has to be rebuilt from bytes at run time, which in some way loses some performance.Data types vs. Java virtual machinesIn the instruction set of a Java virtual machine, most directives contain data type information for their operations. For example, the iload instruction is used to load the int data fro

Implementation of Return and Finally execution sequence in Java

this time x = 1 5: iconst_3 // write 3 to the stack top (Finally started) 6: istore_1 // write 3 to 2nd int local variables 7: iload 4 // laod the value of 4th int local variables to the Top 9 of the stack: ireturn // return the stack top value 10: astore_2 11: iconst_2 12: istore_1 13: iload_1 14: istore 4 16: iconst_3 17: istore_1 18: iload 4 20: ireturn 21: astore_3 22: iconst_3 23: istore_1 24: aload_3

StringBuilder Append, StringBuffer's append and string str = "a" + "B" difference?

: (ljava/lang/string;) ljava/lang/StringBuilder; 50:invokevirtual #46//Method Java/lang/stringbuilder.Ostring: () ljava/lang/String; 53: Astore_154:iinc 6, 1 57:iload 6 59:LDC #50//int 10000061:IF_ICMPLT 64:invokestatic #30//Method java/lang/system.currentImemillis: () J67:lstore 6 69:getstatic #51//Field Java/lang/system.out:ljav/io/PrintStream; 72:New#18//class Java/lang/stringbuilder75: DUP76:LDC #55//string string:78:invokespecial #22//Method Java

Use of Java byte Code instruction set detailed _java

bytes as the boundary, need to set aside the corresponding vacancy to achieve alignment. Limiting the length of the Java virtual machine opcode to one byte, and discarding the parameter length alignment of the compiled code, is to obtain a short, lean compilation code, even if it may cost a certain performance cost to the JVM implementation. Because the opcode can only have one byte length, it limits the number of instruction sets, and does not assume that the data is aligned, meaning that dat

Learn more about the Java Virtual Machine (3) class file structure

: Istore_12:iload_1//save X to ReturnValue, at which point X=13:istore 45:iconst_3//X=3 in the finaly block6: Istore_17:iload 4//put the value in ReturnValue to the top of the stack, ready to return to Ireturn9: Ireturn10:astore_2//assign value to exception e defined in catch, stored in slot 211:iconst_2//x=2 in a catch block12: Istore_113:iload_1//save X to ReturnValue, at which point x=214:istore 416:iconst_3//X=3 in the finaly block17: Istore_118:

Java byte code

Bipush Press a 8-bit signed integer into the stack Sipush Presses a 16-bit signed integer into the stack LDC presses an item in a constant pool into the stack Ldc_w to push items in a constant pool into the stack (using a wide index) Ldc2_w to press a long or double type item in a constant pool into the stack (using a wide index) instruction to load values from local variables in the stack iload to load an int type value from a local variable

Deep Java Virtual machine Note: Instruction set (GO)

constant pool into the stack Pop Pop up a word on the top of the stack Pop2 Pop-up stack top two characters Swap Swap stack top two words Dup Copy a WORD from the top of the stack Dup2 Copy the top two characters of the stack Dup_x1 Copy a word and the two words will pop up the stack Dup_x2 Copy a word and will pop up the three-word press stack Dup2_

Java syntax sugar foreach

, args_size=1 0: iconst_2 1: anewarray #2 // class java/lang/String 4: dup 5: iconst_0 6: ldc #3 // String s1 8: aastore 9: dup 10: iconst_1 11: ldc #4 // String s2 13: aastore 14: astore_1 15: aload_1 16: astore_2 17: aload_2 18: ar

DC Voltage Regulator (flow), the core function of Electronic Load, power MOS

Document directory DC Voltage Regulator (flow), the core function of Electronic Load, power MOS DC Voltage Regulator (flow), the core function of Electronic Load, power MOS Http://www.laogu.com/wz_15880.htm Designers use DC electronic loads to test power supplies, such as solar arrays or batteries, but commercial DC electronic loads are expensive. You only need to use the power MOSFET in its linear zone, you can make your own DC electronic load (figure 1 ). The load uses two simple feedback l

There is no correct answer to the difference between a short type + operation and a ++ operation.

Today, I again saw someone asking this question on the weitqin Forum: Short TMP = 0; Why TMP = TMP + 1; error but TMP ++; is correct. Google and Yahoo cannot find a correct answer.ProgramMembers do not need to care about the underlying layer. Is it true? In S + 1, The + operation has two operands. The minimum Type of the + operation in the JVM command is int, and other bytes, short, and Char are operated by iload and iadd, Then use i2b, I2S, and

Deep understanding of JVM Summary-class file structure

and a variable defined in Java source code, and is not required at runtime. is generated by default in the class file. 5.sourceFile Property--Used to record the name of the source file that generated this class file. Optional. 6.ConstantValue Property--notifies the virtual machine to automatically assign a value to a static variable. This property can only be used by variables that are modified by static. Non-static, in instance builder Introduction to Byte code directives The instruction of a

Deep understanding of Java Virtual Machines-sixth chapter

type information corresponding to their operation, for example: the iload directive is used to load int data from the local variable table into the operand stack.There are special notes in the opcode mnemonics to indicate which data types are specifically served, i:int, L:long, S:short, B:byte, C:char, F:float, D:double, A:reference.The Java virtual machine's opcode is only one byte long, and if each data type related instruction supports all runtime

How does java and c/c ++ treat a = a ++;

You can see this problem accidentally: int a = 1;a = a++; A = ?, I tested it myself. In vs2008, I Got a = 2. in linux, the gcc compilation result is also 2. in java, result a = 1 in the JDK7 environment; In order to find out what is going on, we did some research as follows: The following assembly code is available in vs2008: a = a++;00881445 8B 45 F8 mov eax,dword ptr [a] 00881448 89 45 F8 mov dword ptr [a],eax 0088144B 8B 4D F8 mov ecx,dword ptr

The difference between the short type + operation and the + + operation doesn't even have a correct answer.

Today again in the Wei Chen forum to see people ask this question: Short tmp = 0; Why TMP = TMP +1; error but TMP + + is correct. Google and Yahoo do not search for a correct answer. All say Java programmers don't need to care about the bottom, really? In S+1, the + operation has two operands, the minimum type of the JVM instruction + operation is int, and the other byte, short, char are operated by Iload,iadd, Then use I2B,I2S,I2C to convert bac

Java syntax sugar 1: variable length parameters and the Foreach Loop principle

: Public Static void Main (string[] args) { int[] ints = {1,2,3,4,5}; for (int i:ints) System.out.println (i);}Also decompile and look at the key information:10: Iconst_221:newarrayint33: DUP44: Iconst_055: Iconst_166: Iastore77: DUP88: Iconst_199: Iconst_2Ten10: Iastore One11: Astore_1 A12: Aload_1 -13: DUP -14:astore 5 the16: Arraylength -17:istore 4 -19: Iconst_0 -20: Istore_3 +21st:Goto39 -24:aload 5 +26: Iload_3 A27: Iaload at28: istore_2 -29:getstatic #16//Field Jav

Java Virtual Machine (learn more)

storage Zone 2.1jvm Command SystemThe JVM command system is very similar to the command system of other computers. Java commands are composed of operation codes and operands. The operation code is an 8-bit binary number, and the operands follow the operation code. The length varies according to requirements. The operation code is used to specify the nature of a command operation (which is described in the form of an assembly symbol here). For example, iloa

Total Pages: 3 1 2 3 Go to: Go

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.