nasm code

$ nasm-f elf Foo.asm-o foo.o$ gcc-c Bar.c-o BAR.O$ ld-s foo.o Bar.o-o Foobar　　ld:i386 Architecture of input file ' foo.o ' is incompatible with i386:x86-64 outputThis means that the NASM compiler produces a 32-bit target code, and GCC produces a 64-bit target code by default on a 64-bit platform.These two errors are li

1. In nasm, the custom segments are aligned by 4 bytes by default. The manual says, "It is implemented by adding the 'align 'qualifier after the segment definition line. For example, section. data align = 16 switches to the segment '. data' and specifies that it must be aligned to the 16-byte boundary ." I also added align 16 to the custom segment and found that the compiled code is still aligned with 4 byt

Article Title: Linux Application Experience and tips: Use Nasm for compilation in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. With the popularity of Linux, how to program on the Linux platform, especially Assembly, has become a concern, but there is little information about this. After visiting websites

. text ; Code section Global main ; Make lab El available to linker main: mov edx,len ; arg3,length of string to print mov ecx,msg ; arg2, Pointer to string mov ebx,1 , arg1,wher to Write,screen mov eax,4 , write sysout command to int hex int 0x80 , interrupt Hex,call kernel Nasm-f elf64-l Hello.lst hello.asm Gcc-o Hello hello.o Run ./hello Hello.lst's Content [CPP] View Plain copy print?

Refer to nasm's Chinese manual for Reference 1.3.2 install NASM on UNIX If you get the NASM source package 'nasm-x.xx.tar.gz 'in Unix (here, X. XX indicatesNASM version), decompress it to a directory, such as '/usr/local/src '. The package will be created after being decompressedYour own subdirectory 'nasm-X. xx'

Code can be compiled directly ..Compilation parameter: nasmw-fbin msgboxa. ASM-O msgboxa.exe Download the latest NASM for Win32 CompilerLatest Version: NASM 0.98.39 Code :-------------------------------------------------------------------------------->>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >>>>>>>>>>>>>>>>>>>>>>>>>; Smal

80h, like saying to the system: "Yo, do this" of course the system kernel is available The function of the call is so much that we can find the Unistd.h file (or possibly Unistd32.h or unistd64.h) in the/usr/include/asm/directory that contains all the kernel calls that your system supports. Or view the Linux System Call table table that the author edits. 3. First Assembler HelloWorld View plain section.data hello:db ' helloworld! ',10; ' helloworld! ' plusalinefeedcharacter hellolen:equ $-h

Use GCC and NASM to compile together in Linux Today, we compiledProgramFirst, use NASM to compile an ASM file in ELF format. The Assembly file contains global _ start and functionc, which will be used for future connection. Extern is used to represent functions in the external C language. Call structure of my program: _ start (ASM)-> funb (c)-> func (ASM)Among them, the ASM files include extern funb, glob

Under Linux, especially the Ubuntu,sasm tool should be used to develop the best IDE for assembly, small and support debugging. Supported compilers are: NASM, MASM, gas, FASM.Installation steps:Download:http://download.opensuse.org/repositories/home:/Dman95/xUbuntu_16.04/amd64/Installation:sudo dpkg-i sasm_3.8.0_amd64.debIf you are prompted to rely on errors halfway, you can use sudo apt-get install-f to resolve them.Start:Reference:Https://dman95.gith

Error:Problem Solving Process:1, first determine the CPU architecture2, this is a 64-bit architecture of the CPU, if the use of ELF parameters, the default is in 32-bit mode to deal with, then need more precise to specify this mode, such as ELF32 (32-bit), ELF64 (64-bit), the specific reference: http://www.nasm.us/doc/ Nasmdoc7.htmlThen rewrite the above can be as follows:Nasm-f elf64-g-F stabs sandbox.asm-o sandbox. old-o sandbox. O3, if you want to compile 32-bit and 64-bit combination, then y

//////////////////////////////////////// ////////////////// Ming custom build step on./common/i386/colorspace_yuyv_mmx.asm// 'Nasm' is neither an internal or external command nor a running program// Or batch file.// Solve the problem above.//////////////////////////////////////// //////////////// Download nasm.exeand ndisasm.exe to load assembly code. (Xvid encoding and decoding)///////////////////////////

The first simple compilation is explained in the previous article.ProgramNext, let's have a deeper understanding of the compilation. 3. processing parameters when running the program Compared with DOS, it is simpler and more intuitive to call the

compiler based on 80x86 and x86-64 platform "Hello world!" As with the start of most program languages, we'll start with a very basic Hello World program, and I'll show you the code, and I suggest you do it manually, and don't copy and paste it to better remember it, First, let's create a directory to store our working files $ mkdir asm-tutorial $ cd asm-tutorial $ gedit hello-world.asm In the example above, I opened the hello-world.asm with Gedit,