dev/i386/dis_tables.c

153 	LSEG,		/* for 3-bit seg reg encoding */
519  *bit pattern: 0000 1111 1100 1reg
1444 #define	REX_R 0x04	/* high order bit extension of ModRM reg field */
1446 #define	REX_B 0x01	/* extends ModRM r_m, SIB base, or opcode reg */
1467 #define	MM_OPND		2	/* "value" used to indicate a mmx reg */
1468 #define	XMM_OPND	3	/* "value" used to indicate a xmm reg */
1469 #define	SEG_OPND	4	/* "value" used to indicate a segment reg */
1470 #define	CONTROL_OPND	5	/* "value" used to indicate a control reg */
1471 #define	DEBUG_OPND	6	/* "value" used to indicate a debug reg */
1472 #define	TEST_OPND	7	/* "value" used to indicate a test reg */
1473 #define	WORD_OPND	8	/* w-bit value indicating word size reg */
1529 dtrace_get_modrm(dis86_t *x, uint_t *mode, uint_t *reg, uint_t *r_m)
1534 		dtrace_get_SIB(x, mode, reg, r_m);
1544 dtrace_rex_adjust(uint_t rex_prefix, uint_t mode, uint_t *reg, uint_t *r_m)
1547 	if (reg != NULL && r_m == NULL) {
1549 			*reg += 8;
1551 		if (reg != NULL && (REX_R & rex_prefix) != 0)
1552 			*reg += 8;
1660  * r_m = r_m (or reg if mode == 3) field from ModRM byte
1664  * the value of reg or r_m must have already been adjusted for any REX prefix.
1867 #define	STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, vbit)  {	\
1868 		dtrace_get_modrm(x, &mode, &reg, &r_m);			\
1869 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);	\
1871 		dtrace_get_operand(x, REG_ONLY, reg, wbit, 1 - vbit);	\
1878  *	w2 is for the reg operand
1880 #define	MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, w2, vbit)	{	\
1881 		dtrace_get_modrm(x, &mode, &reg, &r_m);			\
1882 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);	\
1884 		dtrace_get_operand(x, REG_ONLY, reg, w2, 1 - vbit);	\
1893 #define	THREEOPERAND(x, mode, reg, r_m, rex_prefix, wbit, w2, immsize, vbit) { \
1894 		dtrace_get_modrm(x, &mode, &reg, &r_m);			\
1895 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);	\
1897 		dtrace_get_operand(x, REG_ONLY, reg, w2, 1+vbit);	\
1904 #define	FOUROPERAND(x, mode, reg, r_m, rex_prefix, wbit, w2, immsize) { \
1905 		dtrace_get_modrm(x, &mode, &reg, &r_m);			\
1906 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);	\
1908 		dtrace_get_operand(x, REG_ONLY, reg, w2, 3);		\
1916 #define	ONEOPERAND_TWOIMM(x, mode, reg, r_m, rex_prefix, wbit, immsize) { \
1917 		dtrace_get_modrm(x, &mode, &reg, &r_m);			\
1918 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);	\
1951 	uint_t reg;		/* reg value from ModRM byte */
2213 		reg = opcode3;
2424 	vbit = 0;		/* initialize for mem/reg -> reg */
2427 		 * amd64 instruction to sign extend 32 bit reg/mem operands
2437 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2438 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2440 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 1);
2457 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2458 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2459 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 1);
2470 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2471 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2472 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 1);
2485 		THREEOPERAND(x, mode, reg, r_m, rex_prefix, wbit, LONG_OPND,
2492 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 0);
2502 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 1);
2508 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 1);
2519 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, MM_OPND, 1);
2524 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2528 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, MM_OPND, 1);
2534 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2535 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2537 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 1);
2546 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 1);
2564 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2575 		reg = REGNO(opcode2);
2576 		dtrace_rex_adjust(rex_prefix, mode, &reg, NULL);
2578 		r_m = reg;
2593 		reg = REGNO(opcode7);
2594 		dtrace_rex_adjust(rex_prefix, mode, &reg, NULL);
2595 		dtrace_get_operand(x, REG_ONLY, reg, wbit, 1);
2623 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2626 		dtrace_get_operand(x, REG_ONLY, reg, SEG_OPND, 1 - vbit);
2668 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2724 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2757 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2758 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2759 		dtrace_get_operand(x, REG_ONLY, reg, wbit, vbit);
2770 			reg = REGNO(opcode5);
2772 			reg = REGNO(opcode2);
2773 		dtrace_rex_adjust(rex_prefix, mode, &reg, NULL);
2774 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 0);
2784 		reg = REGNO(opcode2);
2785 		dtrace_rex_adjust(rex_prefix, mode, &reg, NULL);
2786 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 0);
2796 		reg = (x->d86_bytes[x->d86_len - 1] >> 3) & 0x3;
2797 		dtrace_get_operand(x, REG_ONLY, reg, SEG_OPND, 0);
2806 		/* long seg reg from opcode */
2807 		reg = (x->d86_bytes[x->d86_len - 1] >> 3) & 0x7;
2808 		dtrace_get_operand(x, REG_ONLY, reg, SEG_OPND, 0);
2814 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 0);
2819 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 1);
2822 	/* MMX/SIMD-Int memory or mm reg to mm reg		*/
2830 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, MM_OPND, 0);
2839 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2843 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
2845 		dtrace_get_operand(x, REG_ONLY, reg, MM_OPND, 1);
2849 	/* MMX/SIMD-Int and SIMD-FP predicated mm reg to r32 */
2856 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2860 		THREEOPERAND(x, mode, reg, r_m, rex_prefix, wbit, LONG_OPND, 1,
2866 		THREEOPERAND(x, mode, reg, r_m, rex_prefix, LONG_OPND, XMM_OPND,
2870 	/* MMX/SIMD-Int predicated r32/mem to mm reg */
2880 		THREEOPERAND(x, mode, reg, r_m, rex_prefix, wbit, w2, 1, 1);
2883 	/* MMX/SIMD-Int predicated mm/mem to mm reg */
2889 	/* MMX/SIMD-Int mm reg to r32 */
2892 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2896 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, LONG_OPND, 0);
2899 	/* SIMD memory or xmm reg operand to xmm reg		*/
2906 		STANDARD_MODRM(x, mode, reg, r_m, rex_prefix, wbit, 0);
2931 	/* SIMD xmm reg to memory or xmm reg */
2936 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2945 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 1);
2948 	/* SIMD memory to xmm reg */
2953 		dtrace_get_modrm(x, &mode, &reg, &r_m);
2963 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 0);
2966 	/* SIMD memory or r32 to xmm reg			*/
2969 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 0);
2974 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 1);
2977 	/* SIMD memory or mm reg to xmm reg			*/
2982 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 0);
2985 	/* SIMD memory or xmm reg to mm reg			*/
2990 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, MM_OPND, 0);
2994 	/* SIMD memory or xmm reg to r32			*/
2997 		MIXED_MM(x, mode, reg, r_m, rex_prefix, wbit, LONG_OPND, 0);
3003 		dtrace_get_modrm(x, &mode, &reg, &r_m);
3006 		dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
3008 		dtrace_get_operand(x, REG_ONLY, reg, LONG_OPND, 1);
3012 	/* SIMD predicated memory or xmm reg with/to xmm reg */
3018 		THREEOPERAND(x, mode, reg, r_m, rex_prefix, wbit, XMM_OPND, 1,
3052 		FOUROPERAND(x, mode, reg, r_m, rex_prefix, XMM_OPND, XMM_OPND,
3058 		ONEOPERAND_TWOIMM(x, mode, reg, r_m, rex_prefix, XMM_OPND, 1);
3301 		dtrace_get_modrm(x, &mode, &reg, &r_m);
3309 			dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
3315 			dtrace_rex_adjust(rex_prefix, mode, &reg, &r_m);
3347 	/* float reg */
3357 	/* float reg to float reg, with ret bit present */