//register, eg EAX
#define EAX 0x0
#define ECX 0x1
#define EDX 0x2
#define EBX 0x3
#define ESP 0x4
#define EBP 0x5
#define ESI 0x6
#define EDI 0x7
//memory indirection, eg [EAX]
#define EAXM 0x8
#define ECXM 0x9
#define EDXM 0xa
#define EBXM 0xb
#define ESPM 0xc
#define EBPM 0xd
#define ESIM 0xe
#define EDIM 0xf
//memory offset
#define DISP32 0x10
//Conditional branches with rel8 offset
#define JA 0x77
#define JAE 0x73
#define JB 0x72
#define JBE 0x76
#define JC 0x72
#define JCXZ 0xe3
#define JECXZ 0xe3
#define JRCXZ 0xe3
#define JE 0x74
#define JG 0x7f
#define JGE 0x7d
#define JL 0x7c
#define JLE 0x7e
#define JNA 0x76
#define JNAE 0x72
#define JNB 0x73
#define JNBE 0x77
#define JNC 0x73
#define JNE 0x75
#define JNG 0x7e
#define JNGE 0x7c
#define JNL 0x7d
#define JNLE 0x7f
#define JNO 0x71
#define JNP 0x7b
#define JNS 0x79
#define JNZ 0x75
#define JO 0x70
#define JP 0x7a
#define JPE 0x7a
#define JPO 0x7b
#define JS 0x78
#define JZ 0x74