gas/

2003-06-23 H.J. Lu <hongjiu.lu@intel.com> * gas/config/tc-i386.c (md_assemble): Support Intel Precott New Instructions. * gas/config/tc-i386.h (CpuPNI): New. (CpuUnknownFlags): Add CpuPNI. gas/testsuite/ 2003-06-23 H.J. Lu <hongjiu.lu@intel.com> * gas/i386/i386.exp: Add prescott. * gas/i386/prescott.d: New file. * gas/i386/prescott.s: Likewise. include/opcode/ 2003-06-23 H.J. Lu <hongjiu.lu@intel.com> * i386.h (i386_optab): Support Intel Precott New Instructions. opcodes/ 2003-06-23 H.J. Lu <hongjiu.lu@intel.com> * i386-dis.c (PNI_Fixup): New. Fix up "mwait" and "monitor" in Intel Precott New Instructions. (PREGRP27): New. Added for "addsubpd" and "addsubps". (PREGRP28): New. Added for "haddpd" and "haddps". (PREGRP29): New. Added for "hsubpd" and "hsubps". (PREGRP30): New. Added for "movsldup" and "movddup". (PREGRP31): New. Added for "movshdup" and "movhpd". (PREGRP32): New. Added for "lddqu". (dis386_twobyte): Use PREGRP30 to replace the "movlpX" entry. Use PREGRP31 to replace the "movhpX" entry. Use PREGRP28 for entry 0x7c. Use PREGRP29 for entry 0x7d. Use PREGRP27 for entry 0xd0. Use PREGRP32 for entry 0xf0. (twobyte_has_modrm): Updated. (twobyte_uses_SSE_prefix): Likewise. (grps): Use PNI_Fixup in the "sidtQ" entry. (prefix_user_table): Add PREGRP27, PREGRP28, PREGRP29, PREGRP30, PREGRP31 and PREGRP32. (float_mem): Use "fisttp{l||l|}" in entry 1 in opcode 0xdb. Use "fisttpll" in entry 1 in opcode 0xdd. Use "fisttp" in entry 1 in opcode 0xdf.
2024-11-21 01:12:32 +08:00 · 2003-06-23 20:15:34 +00:00 · 2003-06-23 20:15:34 +00:00 · ca164297eb
commit ca164297eb
parent b2a02dda88
11 changed files with 248 additions and 18 deletions
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@ -1,3 +1,11 @@
+2003-06-23  H.J. Lu <hongjiu.lu@intel.com>
+
+	* gas/config/tc-i386.c (md_assemble): Support Intel Precott New
+	Instructions.
+
+	* gas/config/tc-i386.h (CpuPNI): New.
+	(CpuUnknownFlags): Add CpuPNI.
+
 2003-06-23    <davidm@hpl.hp.com>

 	* config/tc-ia64.c (pseudo_func): Add ABI constants for linux,
--- a/gas/config/tc-i386.c
+++ b/gas/config/tc-i386.c
@ -1413,6 +1413,21 @@ md_assemble (line)

  if (i.tm.opcode_modifier & ImmExt)
    {
+      if ((i.tm.cpu_flags & CpuPNI) && i.operands > 0)
+	{
+          /* These Intel Precott New Instructions have the fixed
+	     operands with an opcode suffix which is coded in the same
+	     place as an 8-bit immediate field would be. Here we check
+	     those operands and remove them afterwards.  */
+	  unsigned int x;
+
+	  for (x = 0; x < i.operands; x++) 
+	    if (i.op[x].regs->reg_num != x)
+	      as_bad (_("can't use register '%%%s' as operand %d in '%s'."),
+			i.op[x].regs->reg_name, x + 1, i.tm.name);
+	  i.operands = 0;
+ 	}
+
      /* These AMD 3DNow! and Intel Katmai New Instructions have an
 	 opcode suffix which is coded in the same place as an 8-bit
 	 immediate field would be.  Here we fake an 8-bit immediate
--- a/gas/config/tc-i386.h
+++ b/gas/config/tc-i386.h
@ -243,13 +243,14 @@ typedef struct
 #define CpuSSE	       0x1000	/* Streaming SIMD extensions required */
 #define CpuSSE2	       0x2000	/* Streaming SIMD extensions 2 required */
 #define Cpu3dnow       0x4000	/* 3dnow! support required */
+#define CpuPNI	       0x8000	/* Prescott New Instuctions required */

  /* These flags are set by gas depending on the flag_code.  */
 #define Cpu64	     0x4000000   /* 64bit support required  */
 #define CpuNo64      0x8000000   /* Not supported in the 64bit mode  */

  /* The default value for unknown CPUs - enable all features to avoid problems.  */
-#define CpuUnknownFlags (Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuP4|CpuSledgehammer|CpuMMX|CpuSSE|CpuSSE2|Cpu3dnow|CpuK6|CpuAthlon)
+#define CpuUnknownFlags (Cpu086|Cpu186|Cpu286|Cpu386|Cpu486|Cpu586|Cpu686|CpuP4|CpuSledgehammer|CpuMMX|CpuSSE|CpuSSE2|CpuPNI|Cpu3dnow|CpuK6|CpuAthlon)

  /* the bits in opcode_modifier are used to generate the final opcode from
     the base_opcode.  These bits also are used to detect alternate forms of
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@ -1,3 +1,10 @@
+2003-06-23  H.J. Lu <hongjiu.lu@intel.com>
+
+	* gas/i386/i386.exp: Add prescott.
+
+	* gas/i386/prescott.d: New file.
+	* gas/i386/prescott.s: Likewise.
+
 2003-06-21  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>

 	* gas/mips/elf-rel-got-n32.d: Remove special handling for n32 ABI.
--- a/gas/testsuite/gas/i386/i386.exp
+++ b/gas/testsuite/gas/i386/i386.exp
@ -56,6 +56,7 @@ if [expr ([istarget "i*86-*-*"] ||  [istarget "x86_64-*-*"]) && [gas_32_check]]
    run_dump_test "absrel"
    run_dump_test "pcrel"
    run_dump_test "sub"
+    run_dump_test "prescott"

    # PIC is only supported on ELF targets.
    if { ([istarget "*-*-elf*"] || [istarget "*-*-linux*"] )
--- a/gas/testsuite/gas/i386/prescott.d
+++ b/gas/testsuite/gas/i386/prescott.d
@ -0,0 +1,37 @@
+#objdump: -dw
+#name: i386 prescott
+
+.*: +file format .*
+
+Disassembly of section .text:
+
+0+000 <foo>:
+   0:	66 0f d0 01 [ 	]*addsubpd \(%ecx\),%xmm0
+   4:	66 0f d0 ca [ 	]*addsubpd %xmm2,%xmm1
+   8:	f2 0f d0 13 [ 	]*addsubps \(%ebx\),%xmm2
+   c:	f2 0f d0 dc [ 	]*addsubps %xmm4,%xmm3
+  10:	df 88 90 90 90 90 [ 	]*fisttp 0x90909090\(%eax\)
+  16:	db 88 90 90 90 90 [ 	]*fisttpl 0x90909090\(%eax\)
+  1c:	dd 88 90 90 90 90 [ 	]*fisttpll 0x90909090\(%eax\)
+  22:	dd 88 90 90 90 90 [ 	]*fisttpll 0x90909090\(%eax\)
+  28:	dd 88 90 90 90 90 [ 	]*fisttpll 0x90909090\(%eax\)
+  2e:	66 0f 7c 65 00 [ 	]*haddpd 0x0\(%ebp\),%xmm4
+  33:	66 0f 7c ee [ 	]*haddpd %xmm6,%xmm5
+  37:	f2 0f 7c 37 [ 	]*haddps \(%edi\),%xmm6
+  3b:	f2 0f 7c f8 [ 	]*haddps %xmm0,%xmm7
+  3f:	66 0f 7d c1 [ 	]*hsubpd %xmm1,%xmm0
+  43:	66 0f 7d 0a [ 	]*hsubpd \(%edx\),%xmm1
+  47:	f2 0f 7d d2 [ 	]*hsubps %xmm2,%xmm2
+  4b:	f2 0f 7d 1c 24 [ 	]*hsubps \(%esp,1\),%xmm3
+  50:	f2 0f f0 2e [ 	]*lddqu  \(%esi\),%xmm5
+  54:	0f 01 c8 [ 	]*monitor %eax,%ecx,%edx 
+  57:	0f 01 c8 [ 	]*monitor %eax,%ecx,%edx 
+  5a:	f2 0f 12 f7 [ 	]*movddup %xmm7,%xmm6
+  5e:	f2 0f 12 38 [ 	]*movddup \(%eax\),%xmm7
+  62:	f3 0f 16 01 [ 	]*movshdup \(%ecx\),%xmm0
+  66:	f3 0f 16 ca [ 	]*movshdup %xmm2,%xmm1
+  6a:	f3 0f 12 13 [ 	]*movsldup \(%ebx\),%xmm2
+  6e:	f3 0f 12 dc [ 	]*movsldup %xmm4,%xmm3
+  72:	0f 01 c9 [ 	]*mwait   %eax,%ecx 
+  75:	0f 01 c9 [ 	]*mwait   %eax,%ecx 
+	...
--- a/gas/testsuite/gas/i386/prescott.s
+++ b/gas/testsuite/gas/i386/prescott.s
@ -0,0 +1,34 @@
+#Prescott New Instructions
+
+	.text
+foo:
+	addsubpd	(%ecx),%xmm0
+	addsubpd	%xmm2,%xmm1
+	addsubps	(%ebx),%xmm2
+	addsubps	%xmm4,%xmm3
+	fisttp		0x90909090(%eax)
+	fisttpl		0x90909090(%eax)
+	fisttpd		0x90909090(%eax)
+	fisttpq		0x90909090(%eax)
+	fisttpll	0x90909090(%eax)
+	haddpd		0x0(%ebp),%xmm4
+	haddpd		%xmm6,%xmm5
+	haddps		(%edi),%xmm6
+	haddps		%xmm0,%xmm7
+	hsubpd		%xmm1,%xmm0
+	hsubpd		(%edx),%xmm1
+	hsubps		%xmm2,%xmm2
+	hsubps		(%esp,1),%xmm3
+	lddqu		(%esi),%xmm5
+	monitor
+	monitor		%eax,%ecx,%edx
+	movddup		%xmm7,%xmm6
+	movddup		(%eax),%xmm7
+	movshdup	(%ecx),%xmm0
+	movshdup	%xmm2,%xmm1
+	movsldup	(%ebx),%xmm2
+	movsldup	%xmm4,%xmm3
+	mwait
+	mwait		%eax,%ecx
+
+	.p2align	4,0
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@ -1,3 +1,7 @@
+2003-06-23  H.J. Lu <hongjiu.lu@intel.com>
+
+	* i386.h (i386_optab): Support Intel Precott New Instructions.
+
 2003-06-10  Gary Hade <garyhade@us.ibm.com>

 	* ppc.h (PPC_OPERAND_DQ): Define.
--- a/include/opcode/i386.h
+++ b/include/opcode/i386.h
@ -1302,6 +1302,30 @@ static const template i386_optab[] = {
 {"punpckhqdq",2, 0x660f6d,  X, CpuSSE2, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
 {"punpcklqdq",2, 0x660f6c,  X, CpuSSE2, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },

+/* Prescott New Instructions.  */
+
+{"addsubpd",  2, 0x660fd0,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"addsubps",  2, 0xf20fd0,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"fisttp",    1, 0xdf,      1, CpuPNI, sl_FP|FloatMF|Modrm, { ShortMem|LongMem, 0, 0} },
+/* Intel Syntax */
+{"fisttpd",   1, 0xdd,      1, CpuPNI, FP|Modrm,	{ LLongMem, 0, 0} },
+{"fisttpq",   1, 0xdd,      1, CpuPNI, FP|Modrm,	{ LLongMem, 0, 0} },
+{"fisttpll",  1, 0xdd,      1, CpuPNI, FP|Modrm,	{ LLongMem, 0, 0} },
+{"haddpd",    2, 0x660f7c,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"haddps",    2, 0xf20f7c,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"hsubpd",    2, 0x660f7d,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"hsubps",    2, 0xf20f7d,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"lddqu",     2, 0xf20ff0,  X, CpuPNI, FP|Modrm,	{ LLongMem, RegXMM, 0 } },
+{"monitor",   0, 0x0f01, 0xc8, CpuPNI, FP|ImmExt,	{ 0, 0, 0} },
+/* Need to ensure only "monitor %eax,%ecx,%edx" is accepted. */
+{"monitor",   3, 0x0f01, 0xc8, CpuPNI, FP|ImmExt,	{ Reg32, Reg32, Reg32} },
+{"movddup",   2, 0xf20f12,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"movshdup",  2, 0xf30f16,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"movsldup",  2, 0xf30f12,  X, CpuPNI, FP|Modrm,	{ RegXMM|LLongMem, RegXMM, 0 } },
+{"mwait",     0, 0x0f01, 0xc9, CpuPNI, FP|ImmExt,	{ 0, 0, 0} },
+/* Need to ensure only "mwait %eax,%ecx" is accepted.  */
+{"mwait",     2, 0x0f01, 0xc9, CpuPNI, FP|ImmExt,	{ Reg32, Reg32, 0} },
+
 /* AMD 3DNow! instructions.  */

 {"prefetch", 1, 0x0f0d,	   0, Cpu3dnow, FP|Modrm,		{ ByteMem, 0, 0 } },
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@ -1,3 +1,26 @@
+2003-06-23  H.J. Lu <hongjiu.lu@intel.com>
+
+	* i386-dis.c (PNI_Fixup): New. Fix up "mwait" and "monitor" in
+	Intel Precott New Instructions.
+	(PREGRP27): New. Added for "addsubpd" and "addsubps".
+	(PREGRP28): New. Added for "haddpd" and "haddps".
+	(PREGRP29): New. Added for "hsubpd" and "hsubps".
+	(PREGRP30): New. Added for "movsldup" and "movddup".
+	(PREGRP31): New. Added for "movshdup" and "movhpd".
+	(PREGRP32): New. Added for "lddqu".
+	(dis386_twobyte): Use PREGRP30 to replace the "movlpX" entry.
+	Use PREGRP31 to replace the "movhpX" entry. Use PREGRP28 for
+	entry 0x7c. Use PREGRP29 for entry 0x7d. Use PREGRP27 for
+	entry 0xd0. Use PREGRP32 for entry 0xf0.
+	(twobyte_has_modrm): Updated.
+	(twobyte_uses_SSE_prefix): Likewise.
+	(grps): Use PNI_Fixup in the "sidtQ" entry.
+	(prefix_user_table): Add PREGRP27, PREGRP28, PREGRP29, PREGRP30,
+	PREGRP31 and PREGRP32.
+	(float_mem): Use "fisttp{l||l|}" in entry 1 in opcode 0xdb.
+	Use "fisttpll" in entry 1 in opcode 0xdd.
+	Use "fisttp" in entry 1 in opcode 0xdf.
+
 2003-06-19  Christian Groessler  <chris@groessler.org>

 	* z8k-dis.c (instr_data_s): Change tabl_index from long to int.
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@ -93,6 +93,7 @@ static void OP_XS PARAMS ((int, int));
 static void OP_3DNowSuffix PARAMS ((int, int));
 static void OP_SIMD_Suffix PARAMS ((int, int));
 static void SIMD_Fixup PARAMS ((int, int));
+static void PNI_Fixup PARAMS ((int, int));
 static void BadOp PARAMS ((void));

 struct dis_private {
@ -417,6 +418,12 @@ fetch_data (info, addr)
 #define PREGRP24  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 24, NULL, 0
 #define PREGRP25  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 25, NULL, 0
 #define PREGRP26  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 26, NULL, 0
+#define PREGRP27  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 27, NULL, 0
+#define PREGRP28  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 28, NULL, 0
+#define PREGRP29  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 29, NULL, 0
+#define PREGRP30  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 30, NULL, 0
+#define PREGRP31  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 31, NULL, 0
+#define PREGRP32  NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 32, NULL, 0

 #define X86_64_0  NULL, NULL, X86_64_SPECIAL, NULL,  0, NULL, 0

@ -776,11 +783,11 @@ static const struct dis386 dis386_twobyte[] = {
  /* 10 */
  { PREGRP8 },
  { PREGRP9 },
-  { "movlpX",		XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */
+  { PREGRP30 },
  { "movlpX",		EX, XM, SIMD_Fixup, 'h' },
  { "unpcklpX",		XM, EX, XX },
  { "unpckhpX",		XM, EX, XX },
-  { "movhpX",		XM, EX, SIMD_Fixup, 'l' },
+  { PREGRP31 },
  { "movhpX",		EX, XM, SIMD_Fixup, 'l' },
  /* 18 */
  { GRP14 },
@ -895,8 +902,8 @@ static const struct dis386 dis386_twobyte[] = {
  { "(bad)",		XX, XX, XX },
  { "(bad)",		XX, XX, XX },
  { "(bad)",		XX, XX, XX },
-  { "(bad)",		XX, XX, XX },
-  { "(bad)",		XX, XX, XX },
+  { PREGRP28 },
+  { PREGRP29 },
  { PREGRP23 },
  { PREGRP20 },
  /* 80 */
@ -990,7 +997,7 @@ static const struct dis386 dis386_twobyte[] = {
  { "bswap",		RMeSI, XX, XX },
  { "bswap",		RMeDI, XX, XX },
  /* d0 */
-  { "(bad)",		XX, XX, XX },
+  { PREGRP27 },
  { "psrlw",		MX, EM, XX },
  { "psrld",		MX, EM, XX },
  { "psrlq",		MX, EM, XX },
@ -1026,7 +1033,7 @@ static const struct dis386 dis386_twobyte[] = {
  { "pmaxsw",		MX, EM, XX },
  { "pxor",		MX, EM, XX },
  /* f0 */
-  { "(bad)",		XX, XX, XX },
+  { PREGRP32 },
  { "psllw",		MX, EM, XX },
  { "pslld",		MX, EM, XX },
  { "psllq",		MX, EM, XX },
@ -1078,15 +1085,15 @@ static const unsigned char twobyte_has_modrm[256] = {
  /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
  /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */
  /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */
-  /* 70 */ 1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */
+  /* 70 */ 1,1,1,1,1,1,1,0,0,0,0,0,1,1,1,1, /* 7f */
  /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
  /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
  /* a0 */ 0,0,0,1,1,1,0,0,0,0,0,1,1,1,1,1, /* af */
  /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */
  /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
-  /* d0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
+  /* d0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
  /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */
-  /* f0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0  /* ff */
+  /* f0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0  /* ff */
  /*       -------------------------------        */
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
 };
@ -1095,21 +1102,21 @@ static const unsigned char twobyte_uses_SSE_prefix[256] = {
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
  /*       -------------------------------        */
  /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
-  /* 10 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
+  /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
  /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0, /* 2f */
  /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
  /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
  /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
  /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */
-  /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, /* 7f */
+  /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1, /* 7f */
  /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
  /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
  /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
  /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
  /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
-  /* d0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
+  /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
  /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
-  /* f0 */ 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0  /* ff */
+  /* f0 */ 1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0  /* ff */
  /*       -------------------------------        */
  /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
 };
@ -1349,7 +1356,7 @@ static const struct dis386 grps[][8] = {
  /* GRP7 */
  {
    { "sgdtQ",	 M, XX, XX },
-    { "sidtQ",	 M, XX, XX },
+    { "sidtQ", PNI_Fixup, 0, XX, XX },
    { "lgdtQ",	 M, XX, XX },
    { "lidtQ",	 M, XX, XX },
    { "smswQ",	Ev, XX, XX },
@ -1638,6 +1645,48 @@ static const struct dis386 prefix_user_table[][4] = {
    { "punpcklqdq", XM, EX, XX },
    { "(bad)", XM, EX, XX },
  },
+  /* PREGRP27 */
+  {
+    { "(bad)", MX, EX, XX },
+    { "(bad)", XM, EX, XX },
+    { "addsubpd", XM, EX, XX },
+    { "addsubps", XM, EX, XX },
+  },
+  /* PREGRP28 */
+  {
+    { "(bad)", MX, EX, XX },
+    { "(bad)", XM, EX, XX },
+    { "haddpd", XM, EX, XX },
+    { "haddps", XM, EX, XX },
+  },
+  /* PREGRP29 */
+  {
+    { "(bad)", MX, EX, XX },
+    { "(bad)", XM, EX, XX },
+    { "hsubpd", XM, EX, XX },
+    { "hsubps", XM, EX, XX },
+  },
+  /* PREGRP30 */
+  {
+    { "movlpX", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */
+    { "movsldup", XM, EX, XX },
+    { "movlpd", XM, EX, XX },
+    { "movddup", XM, EX, XX },
+  },
+  /* PREGRP31 */
+  {
+    { "movhpX", XM, EX, SIMD_Fixup, 'l' },
+    { "movshdup", XM, EX, XX },
+    { "movhpd", XM, EX, XX },
+    { "(bad)", XM, EX, XX },
+  },
+  /* PREGRP32 */
+  {
+    { "(bad)", XM, EX, XX },
+    { "(bad)", XM, EX, XX },
+    { "(bad)", XM, EX, XX },
+    { "lddqu", XM, M, XX },
+  },
 };

 static const struct dis386 x86_64_table[][2] = {
@ -2294,7 +2343,7 @@ static const char *float_mem[] = {
  "fidivr{l||l|}",
  /* db */
  "fild{l||l|}",
-  "(bad)",
+  "fisttp{l||l|}",
  "fist{l||l|}",
  "fistp{l||l|}",
  "(bad)",
@ -2312,7 +2361,7 @@ static const char *float_mem[] = {
  "fdivr{l||l|}",
  /* dd */
  "fld{l||l|}",
-  "(bad)",
+  "fisttpll",
  "fst{l||l|}",
  "fstp{l||l|}",
  "frstor",
@ -2330,7 +2379,7 @@ static const char *float_mem[] = {
  "fidivr",
  /* df */
  "fild",
-  "(bad)",
+  "fisttp",
  "fist",
  "fistp",
  "fbld",
@ -4137,6 +4186,33 @@ SIMD_Fixup (extrachar, sizeflag)
    }
 }

+static void
+PNI_Fixup (extrachar, sizeflag)
+     int extrachar ATTRIBUTE_UNUSED;
+     int sizeflag ATTRIBUTE_UNUSED;
+{
+  if (mod == 3 && reg == 1)
+    {
+      char *p = obuf + strlen (obuf);
+
+      /* Override "sidt".  */
+      if (rm)
+	{
+	  /* mwait %eax,%ecx  */
+	  strcpy (p - 4, "mwait   %eax,%ecx");
+	}
+      else
+	{
+	  /* monitor %eax,%ecx,%edx"  */
+	  strcpy (p - 4, "monitor %eax,%ecx,%edx");
+	}
+
+      codep++;
+    }
+  else
+    OP_E (0, sizeflag);
+}
+
 static void
 BadOp (void)
 {