This is the past DOS era of the compilation of source code, although has passed, but for the study of the assembly is still helpful, assembly language is just a basic programmer language, most people can grasp, not necessarily in-depth research.
Cgroup GROUP vector,codesegVECTOR SEGMENT at 0HDB 6CH DUP (?) ; FillerTime_lo DW? ;D OS TimeTime_hi DW? ;D OS TimeVec_ip DW; CLOCK UPDATE VECTOR IPVec_cs DW; CLOCK UPDATE VECTOR CSVECTOR ENDSCodeseg SEGMENT PARAAssume Cs:codeseg,ds:cgroupORG 100HCLK PRO
cx,cy,recnum;int dims[3],i,j,k;Char *pchar,*mloc;BOOL bshowmatlab;//screen when you screen the main MATLAB windowHWND hwin,hactw;HDC DC,MEMDC;RECT RECT;Hbitmap Hbitm,hold;Bitmapinfoheader Binfoh;if (nrhs!=1)//test the input parametersMexerrmsgtxt ("Need 1 argument!\n");if (!mxisdouble (Prhs[0]))Mexerrmsgtxt ("the input argument must be a numeric!\n");if (* (double*) (Mxgetdata (prhs[0)) ==0)Bshowmatlab=false;ElseBshowmatlab=true;Hactw=getforegroundwi
current DI is the first address of line 12thmov cx, 3H; To display 3 rows of data content, cx=3S0:push CX, the following loop nesting will also use CX, put it into the stack to save, and into the outer loopMOV dx, CX;d x is synchronized with the outer cyclic
, meaning that the variable initial value cannot be changed by the function
2. const int Fuction1 (int); The const value is returned here. Meaning refers to the return of the original function of the variable value can not be modified, but the function returned by the value of the variable is made a copy, can not be modified to have no meaning, it can be assigned to any const or non-const type variables, do not need to add this const keyword. But this is only for the internal type (because the i
Friends, have you ever heard of "Falling in the sky"? Oh, the trap cake It is a mody, today teaches you a heaven to drop ¥ of the Recruit son, and ~ ~ Hua Hua to drop! Ha-ha-ha, come on ^_*
Add the following JavaScript code to the
var no = 30;file://SetSet down the number of charactersvar speed = 5;file://SetThe speed of the falling of the fixed charactervar ns4up = (document.layers)? 1:0;var ie4up = (document.all)? 1:0;File://NETSCAPand IE two different browsers to define eachvar s, x, Y, SN,
Error 1, the database to open block change tracking, after the completion of the restoration of the file does not exist error.rman> ALTER DATABASE open resetlogs;RMAN-00571: ===========================================================RMAN-00569: =============== ERROR MESSAGE, STACK follows ===============RMAN-00571: ===========================================================Rman-03002:failure of Alter DB command at 10/25/2016 15:02:16Ora-19751:could not create the change tracking fileOra-19750:ch
ns/op 0 b/op 0 allocs/op ' ' You can also run [test cases] (HTTPS://PLAY.G OLANG.ORG/P/INJCAOXZPVG) (copy the code into your local ' main.go ' file and execute ' Go run main.go '-you won't be able to run this code in playground due to the running time limit). Still find the evidence insufficient? Let's take this [small example] (https://play.golang.org/p/F4xsmeGwy5d) as an example and export the assembly code. Save it to ' Main2.go ' and execute ' Go tool compile-s main2.go > Main.s '. Review t
Online circulating is a 2.x version, has now been updated to 3.x, after arduous, finally debugging success.1. First define the class to be boundAnimationkoo.h#ifndef __animationkoo_h__#define __animationkoo_h__namespace Ls{class AnimationKoo{public:virtual void Functest (); Static Animationkoo * Create ();};} #endif//__animationkoo_h__animationkoo.cpp#include "Cocos2d.h" #include "cocos2d_specifics.hpp" #include " AnimationKoo.h "void Ls::animationkoo::functest () {Cclog (" binding test ... ");
.
Instructions
The assembler uses a variety of directives to bind text and data to symbol names. For example, here is a simple but complete function definition. The TEXT directive declares the symbol runtime Profileloop, which is immediately in the body similar to the function. The end of the TEXT block must be some form of jump, usually a RET(pseudo) instruction. (if not, the linker appends an instruction that jumps to the block itself, theTEXT block does not have a fallthrough) after the symbo
{thensym, dosym} + fsys, lev, Tx ); /* analyze and compute the logical expression, and add the then and do statements in the error recovery set */If (sym = thensym)/* after the expression */getsym (); /* the token obtained after then should be a statement */elseerror (16);/* If then does not exist after if, a 16th error is thrown */cx1 = Cx; /* write down the pointer position of the current Code allocation */Gen (JPC, 0, 0);/* generate the conditiona
: encodeS file sizeL add the 100 h f sub-command to the file to fill in the memory length.C is only used to calculate the first encoding time.K judge C1 C2 C3W each line generates several 4-byte encoding characters. The default value is 18.If Q is equal to W, a line of encoded strings is output.N is used to filter out duplicate bytes.: Encode> NUL (chcp 437 graftabl 936)CLSFor % I in (% infile %) do set S = % ~ ZiIf % S % equ 0 exit/BIf % S % gtr 65535 set error = encoding failed. The maximum f
R Where R · X · Y is a word group, which requires that X and Y be placed in the D_SEG segment, and R be placed in the E_SEG segment.D_SEG segment
X dw 200,241,308,102,124 7
Y dw 20, 25, 2530,888,356
D_SEG ends
E_SEG segment
R dw 5 dup (?)
E_SEG ends
Groups roup group D_SEG, E_SEG
Code segment
Assume cs: code, ds: Role roup
Main proc far
Mov ax, role roup
Mov ds, ax
Call compute
Mov ax, 4c00h
Int 21 h
Main endp
Compute proc near
Mov cx, 5
Mov si, 0
Nex
32-bit CPUs contain the following registers:
Four data registers (eax, EBX, ECx, and EDX)2 address changes and pointer registers (ESI and EDI) 2 pointer registers (ESP and EBP)Six segment registers (ES, Cs, SS, DS, FS, and GS)1 Instruction Pointer register (EIP) 1 flag register (eflags)
1. Data RegisterData registers are mainly used to save information such as the operands and operation results, thus saving the time required to read the operands by occupying the bus and accessing the memory.The
Now in the study of the Assembly, it feels very interesting. , I will write down the learning things, as a later can learn notes ~
The loop instruction is in the form of a loop designator, which takes two steps when the CPU executes the Loop command
1: (CX) = (CX)-1
2: Determine the value in CX, not zero to go to the label to execute, if zero, then execute down
(hR = s_ OK );
Long nwidth, nheight; // width and height, mm_himetric mode, in 0.01mmPpicture-> get_width ( nwidth); // widthPpicture-> get_height ( nheight); // high
Crect rect;Getclientrect ( rect );
Csize SZ (nwidth, nheight );PDC-> himetrictodp ( sz); // converts the mm_himetric mode to the mm_text pixel unit.Long X, Y, CX, Cy;
// Original size/*Cx = Sz. CX;
Chapter 4 first programExperiment 3 programming, compilation, connection, and tracking1. Save the following program as a t1.asm file and generate the executable file t1.exe.Assume Cs: codesgCodesg segmentMoV ax, 2000 hMoV SS, axMoV sp, 0Add SP, 10Pop axPop BXPUSH AXPush BXPop axPop BX
MoV ax, 4c00hInt 21 h
Codesg ends
End
2. Use debugto track the execution process of t1.exe and write the internal
Content on the content and stack topDebug t1.exe-RAx = 0000 BX = 0000
Note that there are programs and test programs. For example, exp1303.asm refers to Chapter 13's third question. exp1303. ASM refers to the test of exp1303 program...
; Exp1301.asm
Install the 7ch Interrupt RoutineFunction: calculates the square of a word number.;;Assume Cs: Code
Code segmentStart:; Copy the code to a non-system management areaMoV ax, CSMoV ds, axMoV Si, offset sqr; copy from sqr of CS segment to 0: 200
MoV ax, 0MoV es, axMoV Di, 200 h
MoV
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