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POPA

Pops the general-purpose registers from the stack.

The following table covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available in 32-bit mode and compatibility mode. It is NOT supported in 64-bit mode.

The stack pointer (ESP) is incremented by 32 bytes after the operation. Using this instruction in 64-bit mode will result in an invalid opcode exception. Ensure the stack contains enough valid data to avoid reading from unmapped memory regions, which could trigger a page fault.