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x86: add prefix constants X86_PREFIX_*. suggested by Pancake

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Nguyen Anh Quynh 2014-10-18 06:15:49 +08:00
parent 85cfb1839c
commit de65619fa8
1 changed files with 21 additions and 4 deletions
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25
include/x86.h
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@ -152,6 +152,23 @@ typedef enum x86_avx_rm {
X86_AVX_RM_RZ, // Round toward zero
} x86_avx_rm;
//> Instruction prefixes - to be used in cs_x86.prefix[]
typedef enum x86_prefix {
X86_PREFIX_LOCK = 0xf0, // lock (cs_x86.prefix[0]
X86_PREFIX_REP = 0xf3, // rep (cs_x86.prefix[0]
X86_PREFIX_REPNE = 0xf2, // repne (cs_x86.prefix[0]
X86_PREFIX_CS = 0x2e, // segment override CS (cs_x86.prefix[1]
X86_PREFIX_SS = 0x36, // segment override SS (cs_x86.prefix[1]
X86_PREFIX_DS = 0x3e, // segment override DS (cs_x86.prefix[1]
X86_PREFIX_ES = 0x26, // segment override ES (cs_x86.prefix[1]
X86_PREFIX_FS = 0x64, // segment override FS (cs_x86.prefix[1]
X86_PREFIX_GS = 0x65, // segment override GS (cs_x86.prefix[1]
X86_PREFIX_OPSIZE = 0x66, // operand-size override (cs_x86.prefix[2]
X86_PREFIX_ADDRSIZE = 0x67, // address-size override (cs_x86.prefix[3]
} x86_prefix;
// Instruction's operand referring to memory
// This is associated with X86_OP_MEM operand type above
typedef struct x86_op_mem {
@ -186,11 +203,11 @@ typedef struct cs_x86_op {
typedef struct cs_x86 {
// Instruction prefix, which can be up to 4 bytes.
// A prefix byte gets value 0 when irrelevant.
// prefix[0] indicates REP/REPNE/LOCK prefix (0xf3/0xf2/0xf0 respectively)
// prefix[0] indicates REP/REPNE/LOCK prefix (See X86_PREFIX_REP/REPNE/LOCK above)
// prefix[1] indicates segment override (irrelevant for x86_64):
// 0x2e = CS, 0x36 = SS, 0x3e = DS, 0x26 = ES, 0x64 = FS, 0x65 = GS
// prefix[2] indicates operand-size override (0x66)
// prefix[3] indicates address-size override (0x67)
// See X86_PREFIX_CS/SS/DS/ES/FS/GS above.
// prefix[2] indicates operand-size override (X86_PREFIX_OPSIZE)
// prefix[3] indicates address-size override (X86_PREFIX_ADDRSIZE)
uint8_t prefix[4];
// Instruction opcode, wich can be from 1 to 4 bytes in size.