my notes to myself

vmchale · Jun 21, 2024 · e04b03a · e04b03a
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+On x64, the stack has to be "16-byte aligned." `malloc` (for instance) uses
+this. However, the `call` instruction pushes an address (8 bytes) onto the stack, so it is 8 (mod 16) at the beginning of a procedure.
+
+- https://stackoverflow.com/a/19128544
+- community.intel.com/t5/Intel-ISA-Extensions/About-the-x64-stack-Alignment/m-p/881087#M2501
+
+# Apple
+
+In Apple procedures, the stack pointer should be `= 0 (mod 16)` at all times.