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i386 PIII SIMD support, remove ReverseRegRegmem kludge
tidy a few things in i386 intel mode disassembly
This commit is contained in:
Alan Modra
1999-05-13 06:00:14 +00:00
parent 3f4438abfd
commit 3afcee8ec9
1 changed files with 16 additions and 9 deletions
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25
gas/config/tc-i386.h
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@ -270,14 +270,21 @@ extern const char extra_symbol_chars[];
#define Acc 0x200000 /* Accumulator %al or %ax or %eax */ #define Acc 0x200000 /* Accumulator %al or %ax or %eax */
#define JumpAbsolute 0x400000 #define JumpAbsolute 0x400000
#define RegMMX 0x800000 /* MMX register */ #define RegMMX 0x800000 /* MMX register */
#define EsSeg 0x1000000 /* String insn operand with fixed es segment */ #define RegXMM 0x1000000 /* XMM registers in PIII */
#define EsSeg 0x2000000 /* String insn operand with fixed es segment */
/* InvMem is for instructions with a modrm byte that only allow a
general register encoding in the i.tm.mode and i.tm.regmem fields,
eg. control reg moves. They really ought to support a memory form,
but don't, so we add an InvMem flag to the register operand to
indicate that it should be encoded in the i.tm.regmem field. */
#define InvMem 0x4000000
#define Reg (Reg8|Reg16|Reg32) /* gen'l register */ #define Reg (Reg8|Reg16|Reg32) /* gen'l register */
#define WordReg (Reg16|Reg32) #define WordReg (Reg16|Reg32)
#define ImplicitRegister (InOutPortReg|ShiftCount|Acc|FloatAcc) #define ImplicitRegister (InOutPortReg|ShiftCount|Acc|FloatAcc)
#define Imm (Imm8|Imm8S|Imm16|Imm32) /* gen'l immediate */ #define Imm (Imm8|Imm8S|Imm16|Imm32) /* gen'l immediate */
#define Disp (Disp8|Disp16|Disp32) /* General displacement */ #define Disp (Disp8|Disp16|Disp32) /* General displacement */
#define AnyMem (Disp|BaseIndex) /* General memory */ #define AnyMem (Disp|BaseIndex|InvMem) /* General memory */
/* The following aliases are defined because the opcode table /* The following aliases are defined because the opcode table
carefully specifies the allowed memory types for each instruction. carefully specifies the allowed memory types for each instruction.
At the moment we can only tell a memory reference size by the At the moment we can only tell a memory reference size by the
@ -323,7 +330,6 @@ typedef struct
#define D 0x2 /* D = 0 if Reg --> Regmem; #define D 0x2 /* D = 0 if Reg --> Regmem;
D = 1 if Regmem --> Reg: MUST BE 0x2 */ D = 1 if Regmem --> Reg: MUST BE 0x2 */
#define Modrm 0x4 #define Modrm 0x4
#define ReverseRegRegmem 0x8 /* swap reg,regmem fields for 2 reg case */
#define FloatR 0x8 /* src/dest swap for floats: MUST BE 0x8 */ #define FloatR 0x8 /* src/dest swap for floats: MUST BE 0x8 */
#define ShortForm 0x10 /* register is in low 3 bits of opcode */ #define ShortForm 0x10 /* register is in low 3 bits of opcode */
#define FloatMF 0x20 /* FP insn memory format bit, sized by 0x4 */ #define FloatMF 0x20 /* FP insn memory format bit, sized by 0x4 */
@ -341,12 +347,13 @@ typedef struct
#define No_wSuf 0x20000 /* w suffix on instruction illegal */ #define No_wSuf 0x20000 /* w suffix on instruction illegal */
#define No_lSuf 0x40000 /* l suffix on instruction illegal */ #define No_lSuf 0x40000 /* l suffix on instruction illegal */
#define No_sSuf 0x80000 /* s suffix on instruction illegal */ #define No_sSuf 0x80000 /* s suffix on instruction illegal */
#define FWait 0x100000 /* instruction needs FWAIT */ #define No_dSuf 0x100000 /* d suffix on instruction illegal */
#define IsString 0x200000 /* quick test for string instructions */ #define No_xSuf 0x200000 /* x suffix on instruction illegal */
#define regKludge 0x400000 /* fake an extra reg operand for clr, imul */ #define FWait 0x400000 /* instruction needs FWAIT */
#define IsPrefix 0x800000 /* opcode is a prefix */ #define IsString 0x800000 /* quick test for string instructions */
#define No_dSuf 0x1000000 /* d suffix on instruction illegal */ #define regKludge 0x1000000 /* fake an extra reg operand for clr, imul */
#define No_xSuf 0x2000000 /* x suffix on instruction illegal */ #define IsPrefix 0x2000000 /* opcode is a prefix */
#define ImmExt 0x4000000 /* instruction has extension in 8 bit imm */
#define Ugh 0x80000000 /* deprecated fp insn, gets a warning */ #define Ugh 0x80000000 /* deprecated fp insn, gets a warning */
/* operand_types[i] describes the type of operand i. This is made /* operand_types[i] describes the type of operand i. This is made