1 #define EBX 0 2 #define ECX 1 3 #define EDX 2 4 #define ESI 3 5 #define EDI 4 6 #define EBP 5 7 #define EAX 6 8 #define DS 7 9 #define ES 8 10 #define FS 9 11 #define GS 10 12 #define ORIG_EAX 11 13 #define EIP 12 14 #define CS 13 15 #define EFL 14 16 #define UESP 15 17 #define SS 16 18