X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=opcodes%2Fi386-opc.h;h=aa080cfe3615ff9cdbaaf15eba762e818cb75d3e;hb=205c426a9bb387204a21165e2275e31c32248035;hp=0bfb4d808cb235a93e367398d95b8f27da000f44;hpb=75e5731b8f10129ef9a0e4202152c391d70375eb;p=deliverable%2Fbinutils-gdb.git

diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index 0bfb4d808c..aa080cfe36 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -403,14 +403,17 @@ enum
   Modrm,
   /* register is in low 3 bits of opcode */
   ShortForm,
-  /* special case for jump insns.  */
-  Jump,
+  /* special case for jump insns; value has to be 1 */
+#define JUMP 1
   /* call and jump */
-  JumpDword,
+#define JUMP_DWORD 2
   /* loop and jecxz */
-  JumpByte,
+#define JUMP_BYTE 3
   /* special case for intersegment leaps/calls */
-  JumpInterSegment,
+#define JUMP_INTERSEGMENT 4
+  /* absolute address for jump */
+#define JUMP_ABSOLUTE 5
+  Jump,
   /* FP insn memory format bit, sized by 0x4 */
   FloatMF,
   /* src/dest swap for floats. */
@@ -429,6 +432,8 @@ enum
   IgnoreSize,
   /* default insn size depends on mode */
   DefaultSize,
+  /* any memory size */
+  Anysize,
   /* b suffix on instruction illegal */
   No_bSuf,
   /* w suffix on instruction illegal */
@@ -443,7 +448,11 @@ enum
   No_ldSuf,
   /* instruction needs FWAIT */
   FWait,
-  /* quick test for string instructions */
+  /* IsString provides for a quick test for string instructions, and
+     its actual value also indicates which of the operands (if any)
+     requires use of the %es segment.  */
+#define IS_STRING_ES_OP0 2
+#define IS_STRING_ES_OP1 3
   IsString,
   /* RegMem is for instructions with a modrm byte where the register
      destination operand should be encoded in the mod and regmem fields.
@@ -644,16 +653,14 @@ typedef struct i386_opcode_modifier
   unsigned int load:1;
   unsigned int modrm:1;
   unsigned int shortform:1;
-  unsigned int jump:1;
-  unsigned int jumpdword:1;
-  unsigned int jumpbyte:1;
-  unsigned int jumpintersegment:1;
+  unsigned int jump:3;
   unsigned int floatmf:1;
   unsigned int floatr:1;
   unsigned int size:2;
   unsigned int checkregsize:1;
   unsigned int ignoresize:1;
   unsigned int defaultsize:1;
+  unsigned int anysize:1;
   unsigned int no_bsuf:1;
   unsigned int no_wsuf:1;
   unsigned int no_lsuf:1;
@@ -661,7 +668,7 @@ typedef struct i386_opcode_modifier
   unsigned int no_qsuf:1;
   unsigned int no_ldsuf:1;
   unsigned int fwait:1;
-  unsigned int isstring:1;
+  unsigned int isstring:2;
   unsigned int regmem:1;
   unsigned int bndprefixok:1;
   unsigned int notrackprefixok:1;
@@ -726,8 +733,9 @@ enum operand_instance
 {
   InstanceNone,
   Accum, /* Accumulator %al/%ax/%eax/%rax/%st(0)/%xmm0 */
-  RegC,  /* Register to hold shift count = %cl */
-  RegD,  /* Register to hold in/out port addr = %dx */
+  RegC,  /* %cl / %cx / %ecx / %rcx, e.g. register to hold shift count */
+  RegD,  /* %dl / %dx / %edx / %rdx, e.g. register to hold I/O port addr */
+  RegB,  /* %bl / %bx / %ebx / %rbx */
 };
 
 /* Position of operand_type bits.  */
@@ -769,10 +777,6 @@ enum
   Disp64,
   /* Register which can be used for base or index in memory operand.  */
   BaseIndex,
-  /* Absolute address for jump.  */
-  JumpAbsolute,
-  /* String insn operand with fixed es segment */
-  EsSeg,
   /* BYTE size. */
   Byte,
   /* WORD size. 2 byte */
@@ -793,8 +797,6 @@ enum
   Zmmword,
   /* Unspecified memory size.  */
   Unspecified,
-  /* Any memory size.  */
-  Anysize,
 
   /* The number of bits in i386_operand_type.  */
   OTNum
@@ -828,8 +830,6 @@ typedef union i386_operand_type
       unsigned int disp32s:1;
       unsigned int disp64:1;
       unsigned int baseindex:1;
-      unsigned int jumpabsolute:1;
-      unsigned int esseg:1;
       unsigned int byte:1;
       unsigned int word:1;
       unsigned int dword:1;
@@ -840,7 +840,6 @@ typedef union i386_operand_type
       unsigned int ymmword:1;
       unsigned int zmmword:1;
       unsigned int unspecified:1;
-      unsigned int anysize:1;
 #ifdef OTUnused
       unsigned int unused:(OTNumOfBits - OTUnused);
 #endif