2014-10-05 10:04:45 +00:00
|
|
|
*Concepts you may want to Google beforehand: stack*
|
2014-10-05 10:03:44 +00:00
|
|
|
|
2014-10-05 16:39:45 +00:00
|
|
|
**Goal: Learn how to use the stack**
|
|
|
|
|
|
2014-10-05 10:03:44 +00:00
|
|
|
The usage of the stack is important, so we'll write yet another boot sector
|
|
|
|
|
with an example.
|
|
|
|
|
|
|
|
|
|
Remember that the `bp` register stores the base address (i.e. bottom) of the stack,
|
|
|
|
|
and `sp` stores the top, and that the stack grows downwards from `bp` (i.e. `sp` gets
|
|
|
|
|
decremented)
|
|
|
|
|
|
|
|
|
|
This lesson is quite straightforward, so jump ahead to the code.
|
|
|
|
|
|
|
|
|
|
I suggest that you try accessing in-stack memory addresses by yourself,
|
|
|
|
|
at different points in the code, and see what happens.
|
