Gabe Black
eabbdbee63
X86: Replace the stupd microop with a store/update sequence.
2011-02-02 19:56:38 -08:00
Gabe Black
c41e633e0e
X86: Fix the RIP relative versions of the BT, BTC, BTR, and BTS instructions.
2010-09-29 11:31:03 -07:00
Gabe Black
d43eb42d00
X86: Mark serializing macroops and regular instructions as such.
2010-08-23 09:44:19 -07:00
Tushar Krishna
11bb678a80
Fix x86 XCHG macro-op to use locked micro-ops for all memory accesses
2010-07-21 09:55:57 -07:00
Nathan Binkert
13d64906c2
copyright: Change HP copyright on x86 code to be more friendly
2010-05-23 22:44:15 -07:00
Gabe Black
c7ca1d3c8a
X86: Add a common named flag for signed media operations.
2009-12-19 01:48:31 -08:00
Gabe Black
2554511533
X86: Create a common flag with a name to indicate high multiplies.
2009-12-19 01:48:07 -08:00
Gabe Black
e474079ddc
X86: Create a common flag with a name to indicate scalar media instructions.
2009-12-19 01:47:30 -08:00
Vince Weaver
53e27c0277
X86: Fix bugs in movd implementation.
...
Unfortunately my implementation of the movd instruction had two bugs.
In one case, when moving a 32-bit value into an xmm register, the
lower half of the xmm register was not zero extended.
The other case is that xmm was used instead of xmmlm as the source
for a register move. My test case didn't notice this at first
as it moved xmm0 to eax, which both have the same register
number.
2009-11-10 11:29:30 -05:00
Vince Weaver
5cf2e7ccf0
X86: Fix problem with movhps instruction
...
This problem is like the one fixed with movhpd a few weeks ago.
A +8 displacement is used to access memory when there should
be none.
This fix is needed for the perlbmk spec2k benchmark to run.
2009-11-04 13:22:15 -05:00
Vince Weaver
a12557439b
X86: Add support for x86 psrldq and pslldq instructions
...
These are complicated instructions and the micro-code might be suboptimal.
This has been tested with some small sample programs (attached)
The psrldq instruction is needed by various spec2k programs.
2009-10-30 12:49:37 -04:00
Vince Weaver
5873ec2238
X86: Implement movd_Vo_Edp on X86
...
This patch implements the movd_Vo_Edp series of instructions.
It addresses various concerns by Gabe Black about which file the
instruction belonged in, as well as supporting REX prefixed
instructions properly.
This instruction is needed for some of the spec2k benchmarks, most
notably bzip2.
2009-10-30 15:52:33 -04:00
Vince Weaver
b2067840a6
X86: Implement the X86 sse2 haddpd instruction
...
This patch implements the haddpd instruction.
It fixes the problem in the previous version (pointed out by Gabe Black)
where an incorrect result would happen if you issue the instruction
with the same argument twice, i.e. "haddpd %xmm0,%xmm0"
This instruction is used by many spec2k benchmarks.
2009-10-30 14:19:06 -04:00
Gabe Black
f9624e49f6
X86: Replace "DISPLACEMENT" with disp in movhpd.
2009-10-27 23:50:25 -07:00
Vince Weaver
87b97f28bd
Fix problem with the x86 sse movhpd instruction.
...
The movhpd instruction was writing to the wrong memory offset.
2009-10-27 14:11:06 -04:00
Vince Weaver
14691148cd
Implement X86 sse2 movdqu and movdqa instructions
...
The movdqa instruction should enforce 16-byte alignment.
This implementation does not do that.
These instructions are needed for most of x86_64 spec2k to run.
2009-10-21 13:40:43 -04:00
Gabe Black
239f1dea31
X86: Fix checking the NT bit during an IRET.
2009-09-16 19:28:30 -07:00
Gabe Black
eec6bfaa9d
X86: Fix setting the busy bit in the task descriptor in LTR.
2009-09-16 19:28:01 -07:00
Gabe Black
e8c0ca5cd1
X86: Fix the decoding for and fill out FST and FSTP.
2009-08-20 00:42:14 -07:00
Gabe Black
92867cac95
X86: Implement MOVNTI.
2009-08-17 20:25:15 -07:00
Gabe Black
56d87cdc08
X86: Implement MOVQ2DQ.
2009-08-17 20:25:14 -07:00
Gabe Black
317a9ac6d1
X86: Implement MOVDQ2Q.
2009-08-17 20:25:14 -07:00
Gabe Black
1606663aa9
X86: Implement the media instructions that convert fp values to ints.
2009-08-17 20:25:14 -07:00
Gabe Black
123ea3b229
X86: Implement the instructions that compare fp values and write a mask as a result.
2009-08-17 20:25:14 -07:00
Gabe Black
87ad677209
X86: Implement the instructions that compare fp values and write to rflags.
2009-08-17 20:25:14 -07:00
Gabe Black
7d4db7266e
X86: Implement MOVSS.
2009-08-17 20:25:14 -07:00
Gabe Black
179fd4e536
X86: Implement LDMXCSR.
2009-08-17 20:25:14 -07:00
Gabe Black
b315c3effc
X86: Implement STMXCSR.
2009-08-17 20:25:13 -07:00
Gabe Black
7fbd9e1296
X86: Implement the shuffle media instructions.
2009-08-17 20:25:13 -07:00
Gabe Black
d9970f139a
X86: Implement the mask move instructions.
2009-08-17 20:22:56 -07:00
Gabe Black
90dc1abd0b
X86: Implement the instructions that move sign bits.
2009-08-17 20:22:56 -07:00
Gabe Black
4c23e631f2
X86: Implement the insert/extract instructions.
2009-08-17 20:22:56 -07:00
Gabe Black
2beab367d7
X86: Implement the media average instructions.
2009-08-17 20:15:16 -07:00
Gabe Black
45bae0c70f
X86: Implement the multiply and add instructions.
2009-08-17 20:15:16 -07:00
Gabe Black
cf2fc2613d
X86: Implement the media shifts that operate on 64 bits or less at a time.
2009-08-17 20:15:16 -07:00
Gabe Black
dabbc7d9d3
X86: Implement the sum of absolute differences instructions.
2009-08-17 20:15:16 -07:00
Gabe Black
31d29ee3f8
X86: Implement the media integer subtract instructions.
2009-08-17 20:15:15 -07:00
Gabe Black
c40698e315
X86: Implement the integer media multiply instructions.
2009-08-17 20:15:15 -07:00
Gabe Black
5d834c28eb
X86: Implement the integer media max instructions.
2009-08-17 20:04:03 -07:00
Gabe Black
be6267e895
X86: Implement the integer media min instructions.
2009-08-17 20:04:03 -07:00
Gabe Black
e678df6263
X86: Implement the media integer addition instructions.
2009-08-17 20:04:02 -07:00
Gabe Black
f5ac4f51d9
X86: Implement the instructions that convert between forms of floating point.
2009-08-17 20:04:02 -07:00
Gabe Black
35b0983ca9
X86: Implement the instructions that compare fp values and write masks as the result.
2009-08-17 20:04:02 -07:00
Gabe Black
df1b3fdcfb
X86: Implement the MOVDDUP instruction.
2009-08-17 18:50:29 -07:00
Gabe Black
cf9634a43f
X86: Implement many of the media mov instructions.
2009-08-17 18:44:44 -07:00
Gabe Black
ae64377afe
X86: Implement the media instructions that convert integer values to floating point.
2009-08-17 18:41:27 -07:00
Gabe Black
b34b507fd8
X86: Implement the floating point media instructions.
2009-08-17 18:40:40 -07:00
Gabe Black
fcb5b2226c
X86: Implement the floating point media multiply instructions.
2009-08-17 18:38:53 -07:00
Gabe Black
dd81a34829
X86: Implement the floating point media subtract instructions.
2009-08-17 18:36:20 -07:00
Gabe Black
49c2610c04
X86: Implement the floating point media add instructions.
2009-08-17 18:35:06 -07:00
