0 Base starts with C language. In the book see the single-chip assembly language and embedded C language comparison, more useful. 1. The main function in the embedded C program is the main program in the assembler, and the function in the embedded C program is the subroutine in the assembler program. The program runs from the main function or the main program and terminates at the last statement in the main
Ducomet, Bernard; Ne?asová,šárka; Vasseur, Alexis. On global motions of a compressible barotropic and selfgravitating gas with density-dependent viscosities. Z. Angew. Math. Phys. (+), No. 3, 479--491.by Eq. (+), we see readily that the authors concerns about the finite mass case, and thus $$\bex \int, \rho\rd x\leq C. \e ex$$ Moreover, $$\bex \int \rho \ln \rho =\int \rho \frac{1}{\ve}\ln \rho^\ve \leq \int \frac{1}{\ve}\rho (\rho^\ve-1) \le Q \frac
pressure loss is small, mass flowmeter wide range, the range of up to 10-25.13, no moving parts, long-term stability, simple structure for easy installation and maintenance.14, the mass flowmeter can measure the medium temperature up to +250℃.15, direct measurement of mass flow, without temperature and pressure compensation, mass flowmeter measurement is convenient, accurate, can get gas mass flow or standard volumetric flow.16, mass flowmeter can me
Tags: leetcode When the total amount of gas is greater than the total amount of cost, it is possible to circle all cities. Solution 1: Assume that there is enough oil at the beginning, starting from position I to position K, the remaining oil volume is L (I, K ). For any K, L (I, K), only the difference Constant varies according to I. We only need to find the minimum K and k + 1 corresponding to L (0, K. The Code is as follows: Int cancomplete
This PS Tutorial to learn how to use Photoshop to synthesize the doomsday scene, because the human for money crazy destruction of the environment, vegetation was destroyed air pollution serious, human have to wear gas masks to go out, mainly used brush, mask, adjust layer and material stack, first look at the effect of the picture. Tutorial Difficulty Intermediate
First turn on the girl wearing a gas mas
Arduino MQ135 Gas Sensor
first, the wiring
The MQ135 has 4 pins, VCC, GND, A0, D0, respectively, where VCC, GND, and A0 are required. The following diagram is a esp8266 wiring diagram. Due to the measurement of the gas value of PPM, it is related to the air temperature and humidity. So we've added a DHT22 here. DHT22 Portal
vcc->3v
Gnd->g
A0->a0
Second, MQ135 library
Download Address: https://github.com/zha
VS2012 in the Win32 platform compile time can be very good support of assembly language embedding. Create a console application and select an empty project. After the project is established, add a. cpp file. Write the following code in the CPP file:[CPP]View PlainCopyPrint?
#include
using namespace std;
int Add (int NUM1, int num2)
{
__asm
{
MOV eax,num1
MOV ecx,num2
Add EAX,ECX
}
}
void Main ()
{
inta = ADD (2,3);
cout
System ("pause");
}
executable file, and initializes the relevant initialization, such as Cs:ip pointing to the first assembly instruction to be executed. The program is then executed by the CPU. 3, a simple assembly language source program assume CS:CODESGNBSP;NBSP;NBSP;NBSP;NBSP;CODESG segment mov ax,0123h mov bx,0456h add ax,bx NBS P Add ax,ax mov ax,4c00h int 21h codesg ends end The code above is a simple addition operation, here are some concepts to explain.
Masmfor windows integrated development environment compiling Assembler
Recently I have been studying compilation, and I used a software called "MASM for Windows integrated development environment". However, I found that there is little information about the software. For those who just learned compilation, I have found a lot of information. The following describes the tool and two basic assembly programs.
I. Use of software
The following are the basi
*Map
Map
Defines the first address of a structured memory table. In this case, the location counter of the memory table
{Var}
Set to this address value
{Var}
Is the built-in variable of the assembler.
^
And
Map
Synonymous
.
Pseudocommand format:
Map expr
,
{Base_register}
Where:
Expr
Numeric expression orProgram. When the command does not contain
Base_register
,
Expr
It is the first address of the structured
Assemble the source program structure assembly instructions: There is a corresponding machine code instructions, can be compiled into machine instructions, and ultimately executed by the CPU. Pseudo-directive: instructions executed by the compiler, no corresponding machine code, compiler is related to the compiler according to pseudo-instructions. Segment: A assembler is made up of multiple segments. Used for storing code, data, or as a stack space, r
Csapp, the third edition of "in-depth understanding of computer systems: A programmer's Perspective", is a good book, but it needs to be quite basic in reading. Moreover, some of the expressions are not straightforward.For example, the No. 463 page mentions why the assembler sets the initial value of the reference in the call instruction to-4 (for 32-bit systems). Explained vague later. In conjunction with the expansion of the Code calculation formula
In assembly language learning to find a good entry tutorial, so excerpt some of the more important points 1. An assembler language program can be divided into 3 parts: 1. Data area
Used to define initialization variables (but the variables defined here are not allowed to change during program execution, so they are "variables" in a narrow sense)
From the C language point of view, these macros, import Declaration file library, etc. should be within t
Tags: opp span ISS OCA Pre SOF EFI open friendHttps://www.codeproject.com/Articles/43305/Tracing-SQL-Queries-in-Real-Time-for-MySQL-Databas Assembly and MySQLIntroductionOne of the more interesting things for any person are to see how the internal engines from the server software work. The purpose of this article are to show how we can apply basic assembler knowledge to find interesting runtime information. Few days ago, my friend is involved on Php+m
20145239 gdb Debug Assembler Stack Process analysis test source code#include ShortAddend1 =1;Static intAddend2 =2;Const Static LongAddend3 =3;Static intGintx) { returnX +Addend1;} Static Const intFintx) { returnG (x +addend2);}intMainvoid){ returnF8) +Addend3;}GCC compilationGenerate 32-bit assembly on a 64-bit machine using the gcc-g example.c-o example-m32 instruction and then enter the GDB debugger using the gdb example commandAfter enter
Gfm200 thermal gas Mass FlowmeterGas measurement experts have been manufacturing flow products for 20 years.● Direct measurement of medium quality flow without temperature and pressure compensation● Large Diameter Pipeline measurement Optimization● It is not sensitive to particulate matter in the medium, and the effect can be ignored.● The proprietary flow algorithm is suitable for high humidity gases and high temperature gases without affecting the a
1. condensation is dew, and high temperature moisture condenses into water on the surface of the object after cold. The most common is the autumn and winter season window glass of water droplets is. The insulation of the power system will be dew when the humidity and temperature change greatly, which will greatly reduce the insulation of the device, lead to surface discharge (creepage), and damage the insulation device caused the power system short circuit fault.2.
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