-/*===- X86DisassemblerDecoderInternal.h - Disassembler decoder -----*- C -*-==*
+/*===-- X86DisassemblerDecoderInternal.h - Disassembler decoder ---*- C -*-===*
*
* The LLVM Compiler Infrastructure
*
extern "C" {
#endif
-#define INSTRUCTION_SPECIFIER_FIELDS \
- const char* name;
+#define INSTRUCTION_SPECIFIER_FIELDS
#define INSTRUCTION_IDS \
- InstrUID* instructionIDs;
+ unsigned instructionIDs;
#include "X86DisassemblerDecoderCommon.h"
/*
* Accessor functions for various fields of an Intel instruction
*/
-static inline uint8_t modFromModRM(uint8_t modRM){ return (modRM & 0xc0) >> 6; }
-static inline uint8_t regFromModRM(uint8_t modRM){ return (modRM & 0x38) >> 3; }
-static inline uint8_t rmFromModRM(uint8_t modRM) { return (modRM & 0x7); }
-static inline uint8_t scaleFromSIB(uint8_t sib) { return (sib & 0xc0) >> 6; }
-static inline uint8_t indexFromSIB(uint8_t sib) { return (sib & 0x38) >> 3; }
-static inline uint8_t baseFromSIB(uint8_t sib) { return (sib & 0x7); }
-static inline uint8_t wFromREX(uint8_t rex) { return (rex & 0x8) >> 3; }
-static inline uint8_t rFromREX(uint8_t rex) { return (rex & 0x4) >> 2; }
-static inline uint8_t xFromREX(uint8_t rex) { return (rex & 0x2) >> 1; }
-static inline uint8_t bFromREX(uint8_t rex) { return (rex & 0x1); }
+#define modFromModRM(modRM) (((modRM) & 0xc0) >> 6)
+#define regFromModRM(modRM) (((modRM) & 0x38) >> 3)
+#define rmFromModRM(modRM) ((modRM) & 0x7)
+#define scaleFromSIB(sib) (((sib) & 0xc0) >> 6)
+#define indexFromSIB(sib) (((sib) & 0x38) >> 3)
+#define baseFromSIB(sib) ((sib) & 0x7)
+#define wFromREX(rex) (((rex) & 0x8) >> 3)
+#define rFromREX(rex) (((rex) & 0x4) >> 2)
+#define xFromREX(rex) (((rex) & 0x2) >> 1)
+#define bFromREX(rex) ((rex) & 0x1)
+
+#define rFromVEX2of3(vex) (((~(vex)) & 0x80) >> 7)
+#define xFromVEX2of3(vex) (((~(vex)) & 0x40) >> 6)
+#define bFromVEX2of3(vex) (((~(vex)) & 0x20) >> 5)
+#define mmmmmFromVEX2of3(vex) ((vex) & 0x1f)
+#define wFromVEX3of3(vex) (((vex) & 0x80) >> 7)
+#define vvvvFromVEX3of3(vex) (((~(vex)) & 0x78) >> 3)
+#define lFromVEX3of3(vex) (((vex) & 0x4) >> 2)
+#define ppFromVEX3of3(vex) ((vex) & 0x3)
+
+#define rFromVEX2of2(vex) (((~(vex)) & 0x80) >> 7)
+#define vvvvFromVEX2of2(vex) (((~(vex)) & 0x78) >> 3)
+#define lFromVEX2of2(vex) (((vex) & 0x4) >> 2)
+#define ppFromVEX2of2(vex) ((vex) & 0x3)
/*
* These enums represent Intel registers for use by the decoder.
ENTRY(XMM13) \
ENTRY(XMM14) \
ENTRY(XMM15)
-
+
+#define REGS_YMM \
+ ENTRY(YMM0) \
+ ENTRY(YMM1) \
+ ENTRY(YMM2) \
+ ENTRY(YMM3) \
+ ENTRY(YMM4) \
+ ENTRY(YMM5) \
+ ENTRY(YMM6) \
+ ENTRY(YMM7) \
+ ENTRY(YMM8) \
+ ENTRY(YMM9) \
+ ENTRY(YMM10) \
+ ENTRY(YMM11) \
+ ENTRY(YMM12) \
+ ENTRY(YMM13) \
+ ENTRY(YMM14) \
+ ENTRY(YMM15)
+
#define REGS_SEGMENT \
ENTRY(ES) \
ENTRY(CS) \
ENTRY(DR6) \
ENTRY(DR7)
-#define REGS_CONTROL_32BIT \
- ENTRY(ECR0) \
- ENTRY(ECR1) \
- ENTRY(ECR2) \
- ENTRY(ECR3) \
- ENTRY(ECR4) \
- ENTRY(ECR5) \
- ENTRY(ECR6) \
- ENTRY(ECR7)
-
-#define REGS_CONTROL_64BIT \
- ENTRY(RCR0) \
- ENTRY(RCR1) \
- ENTRY(RCR2) \
- ENTRY(RCR3) \
- ENTRY(RCR4) \
- ENTRY(RCR5) \
- ENTRY(RCR6) \
- ENTRY(RCR7) \
- ENTRY(RCR8)
+#define REGS_CONTROL \
+ ENTRY(CR0) \
+ ENTRY(CR1) \
+ ENTRY(CR2) \
+ ENTRY(CR3) \
+ ENTRY(CR4) \
+ ENTRY(CR5) \
+ ENTRY(CR6) \
+ ENTRY(CR7) \
+ ENTRY(CR8)
#define ALL_EA_BASES \
EA_BASES_16BIT \
REGS_64BIT \
REGS_MMX \
REGS_XMM \
+ REGS_YMM \
REGS_SEGMENT \
REGS_DEBUG \
- REGS_CONTROL_32BIT \
- REGS_CONTROL_64BIT \
+ REGS_CONTROL \
ENTRY(RIP)
/*
SEG_OVERRIDE_GS,
SEG_OVERRIDE_max
} SegmentOverride;
+
+/*
+ * VEXLeadingOpcodeByte - Possible values for the VEX.m-mmmm field
+ */
+
+typedef enum {
+ VEX_LOB_0F = 0x1,
+ VEX_LOB_0F38 = 0x2,
+ VEX_LOB_0F3A = 0x3
+} VEXLeadingOpcodeByte;
+
+/*
+ * VEXPrefixCode - Possible values for the VEX.pp field
+ */
+
+typedef enum {
+ VEX_PREFIX_NONE = 0x0,
+ VEX_PREFIX_66 = 0x1,
+ VEX_PREFIX_F3 = 0x2,
+ VEX_PREFIX_F2 = 0x3
+} VEXPrefixCode;
typedef uint8_t BOOL;
uint8_t prefixPresent[0x100];
/* contains the location (for use with the reader) of the prefix byte */
uint64_t prefixLocations[0x100];
+ /* The value of the VEX prefix, if present */
+ uint8_t vexPrefix[3];
+ /* The length of the VEX prefix (0 if not present) */
+ uint8_t vexSize;
/* The value of the REX prefix, if present */
uint8_t rexPrefix;
- /* The location of the REX prefix */
- uint64_t rexLocation;
/* The location where a mandatory prefix would have to be (i.e., right before
the opcode, or right before the REX prefix if one is present) */
uint64_t necessaryPrefixLocation;
/* The segment override type */
SegmentOverride segmentOverride;
- /* Sizes of various critical pieces of data */
+ /* Sizes of various critical pieces of data, in bytes */
uint8_t registerSize;
uint8_t addressSize;
uint8_t displacementSize;
/* The instruction ID, extracted from the decode table */
uint16_t instructionID;
/* The specifier for the instruction, from the instruction info table */
- struct InstructionSpecifier* spec;
+ const struct InstructionSpecifier *spec;
/* state for additional bytes, consumed during operand decode. Pattern:
consumed___ indicates that the byte was already consumed and does not
need to be consumed again */
+
+ /* The VEX.vvvv field, which contains a third register operand for some AVX
+ instructions */
+ Reg vvvv;
/* The ModR/M byte, which contains most register operands and some portion of
all memory operands */
void* readerArg,
dlog_t logger,
void* loggerArg,
+ void* miiArg,
uint64_t startLoc,
DisassemblerMode mode);
+/* x86DisassemblerDebug - C-accessible function for printing a message to
+ * debugs()
+ * @param file - The name of the file printing the debug message.
+ * @param line - The line number that printed the debug message.
+ * @param s - The message to print.
+ */
+
+void x86DisassemblerDebug(const char *file,
+ unsigned line,
+ const char *s);
+
+const char *x86DisassemblerGetInstrName(unsigned Opcode, void *mii);
+
#ifdef __cplusplus
}
#endif
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