Dec 4, 2018 · The instruction and performs bit-wise AND operation on its operands. For example the instruction and al, bl should compute the AND operation on the register al and bl (as …

Jan 21, 2009 · "An assembly language is a low-level language for programming computers. It implements a symbolic representation of the numeric machine codes and other constants …

ORG (abbr. for ORiGin) is an assembly directive and is not an instruction. It defines where the machine code (translated assembly program) is to place in memory. As for ORG 100H this …

Feb 17, 2009 · In many CPUs this is just to make implementing languages easier--If you were hand-coding assembly you'd generally pass parameters to functions in registers (At least …

I need help about how to add two numbers and then print the result. Here is my code: .MODEL SMALL .STACK 200H .DATA NUM1 DB 12 NUM2 DB 3 VAL DB ? MSG1 DB "The sum …

Sep 28, 2018 · I am trying to understand how the assembly language works for a micro-computer architecture class, and I keep facing different syntaxes in examples: sub $48, %esp mov …

Feb 23, 2015 · For-loops: For-loop in C: for(int x = 0; x<=3; x++) { //Do something! } The same loop in 8086 assembler: xor cx,cx ; cx-register is the counter, set to 0 loop1 nop ; Whatever …

The other registers like EDI/RDI have a DI low 16-bit partial register, but no high-8 part, and the low-8 DIL is only accessible in 64-bit mode: Assembly registers in 64-bit architecture Writing …

Dec 6, 2009 · Jeff Duntemann in his assembly language book has an example assembly code for printing the command line arguments. The code uses esi and edi to store counters as they will …

With the 64 bit processors, Intel needed some way of identifying a 64 bit transfer versus a 32 bit or other transfer in the assembly language. At the same time Intel was introducing additional, …