Callee:
eax: pointer to PIB
- edx: pointer to caller information struct, if such was
- requested
+ edx: pointer to caller information struct, or NULL if not
+ requested.
+ esp: NULL.
Jump to the 32-bit address stored at 0x7fff0004 to return.
Upon return:
eax: pointer to exception, or NULL if none.
edx: length of exception segment, if any
- ebx, esi, edi, ebp, esp: should be preserved
- ecx: may be clobbered
+ ebx, esi, edi, ebp, esp: may be clobbered