lesson 4, manipulating the stack

04-bootsector-stack/README.md

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+*Concepts you may want to Google beforehand:stack*
+
+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.