For x86 that value is typically stored in the stack base pointer register (bp): https://en.wikibooks.org/wiki/X86_Assembly/X86_Architecture https://en.wikibooks

For x86 that value is typically stored in the stack base pointer register (bp): https://en.wikibooks.org/wiki/X86_Assembly/X86_Architecture https://en.wikibooks.org/wiki/X86_Assembly/X86_Architecture