Assembly Programming

[liahow]

In assembly language (on at least an Intel 586 arch) how would I copy the string contents of one buffer to another without using any string functions for copying? I want to copy the contents from buffer1 to buffer2. I'm just beginning to learn how to code in assembly language, so I'm completely lost!

[dduardo]

Are you doing real or protected mode assembly?

[exequor]

I was wondering, is it the real mode and protected mode difference that makes the current DOS in windows XP seem different to the DOS in windows 95? I know that real mode is limited to 1mb and protected is something like 4gb.