Top "Instruction-set" questions

Use for questions related to Instruction Set Architectures, ISA.

What is the difference between MOV and LEA?

I would like to know what the difference between these instructions is: MOV AX, [TABLE-ADDR] and LEA AX, [TABLE-ADDR]

assembly x86 instruction-set
What's the relationship between assembly language and machine language?

Are assembly language and machine language (for the same underlying system) really the same? Are there any differences between these …

assembly architecture operating-system machine-code instruction-set
Determine target ISA extensions of binary file in Linux (library or executable)

We have an issue related to a Java application running under a (rather old) FC3 on an Advantech POS board …

linux shared-libraries executable cpu-architecture instruction-set
assembly "mov" instruction

I'm learning assembly by comparing a c program to its assembly equivalent. Here is the code. .file "ex3.c" .section .…

assembly instruction-set mov
How to control which core a process runs on?

I can understand how one can write a program that uses multiple processes or threads: fork() a new process and …

multicore intel system-calls instruction-set
What is the ARM Thumb Instruction set?

under "The Thumb instruction set" in section 1-34 of "ARM11TechnicalRefManual" it said that: "The Thumb instruction set is a …

arm thumb instruction-set
How to check if a CPU supports the SSE3 instruction set?

Is the following code valid to check if a CPU supports the SSE3 instruction set? Using the IsProcessorFeaturePresent() function apparently …

c++ sse instruction-set avx cpuid
How does one do integer (signed or unsigned) division on ARM?

I'm working on Cortex-A8 and Cortex-A9 in particular. I know that some architectures don't come with integer division, but what …

assembly arm integer-division instruction-set cortex-a8
Why doesn't there exists a subi opcode for MIPS?

I am very new to Assembly language. I was reading about MIPS architecture and came to know that you have …

assembly mips cpu-architecture instructions instruction-set
Do graphic cards have instruction sets of their own?

Do graphic cards have instruction sets of their own? I assume they do, but I have been wondering if it …

gpu instruction-set