I have two questions about X86 processors. First: What is SSE? What is it for? Is it CISC architecture?
I\'m a newbie to assembly programming, working through Programming Ground Up on an Ubuntu x86_64 desktop with GNU assembler v2.20.1.
I\'ve lately encountered a lot of functions where gcc generates really bad code on x86. They all fit a pattern of:
push eax push ecx and eax,0x3C ror eax,1 ror eax,1 inc eax mov edx,eax pop eax xor eax,edx pop ecx xor eax,ecx
simple upper-casifier loop infinitely what\'s wrong with my code? any advice? my programming environment is linux, emacs, assembly, at&t syntax
I am using MASM 开发者_运维问答to do some assembly programming. When I try to run my program it crashes immediately when it encounters \"call myFunction\", even after I\'ve stripped out all the code f
__asm__ __volatile__ ( \"movl 0x4(%ebp), %eax \\n\" \"addl $15, %eax \\n\" \"movl %eax, 开发者_高级运维0x4(%ebp)\"
The following excerpt is from Intel® 64 and IA-32 Architectures Software Developer\'s Manual, Volume 1: Basic Architecture (p.432, http://www.intel.com/Assets/PDF/manual/253665.pdf)
I am reading a \"programming from the ground up\", if you don\'t know what this book is, you still can help me.
I\'m trying to write a simple NASM program for fun, but I can\'t seem to figure out how to write a for loop in it. With the following code, I get a segmentation fault. The following code is supposed t
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