Question

Ive been trying to teach myself some very basic assembly (output to console, Arithmetic). I would like to know how i could store somthing (say a byte) in memory and how to read it from memory.

Ideally a answer without using HLA would be be appreciated (if this is possible)
thanks

Answer 1

MOV instruction is what you are looking for!

This is how you load data from memory

MOV AL,moffs8* Move byte at (seg:offset) to AL
MOV AX,moffs16* Move word at (seg:offset) to AX
MOV EAX,moffs32* Move doubleword at (seg:offset) to EAX

seg indicates the segment registers (CS, DS, ES, FS, GS, SS-Code Segment, Data Segment, Extra Segment etc)

This is how you move data into the memory

MOV moffs8*,AL Move AL to (seg:offset)
MOV moffs16*,AX Move AX to (seg:offset)
MOV moffs32*,EAX Move EAX to (seg:offset)

Read about the complete intel x86 instruction set here
http://download.intel.com/design/intarch/manuals/24319101.pdf