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Author SHA1 Message Date
Vince Weaver
e81cc233a6 X86: Remove double-cast in Cvtf2i micro-op 
This double cast led to rounding errors which caused
some benchmarks to get the wrong values, most notably lucas
which failed spectacularly due to CVTTSD2SI returning an
off-by-one value.  equake was also broken.
 2009-11-10 11:18:23 -05:00
Gabe Black
bbbfdee2ed X86: Don't panic on faults on prefetches in SE mode. 2009-11-08 22:49:58 -08:00
Gabe Black
44e912c6bd X86: Explain what really didn't work with unmapped addresses in SE mode. 2009-11-08 22:49:57 -08:00
Gabe Black
53086dfefe X86: Make x86 use PREFETCH instead of PF_EXCLUSIVE. 2009-11-08 22:49:57 -08:00
Nathan Binkert
708faa7677 compile: wrap 64bit numbers with ULL() so 32bit compiles work 
In the isa_parser, we need to check case statements.
 2009-11-08 13:31:59 -08:00
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
Nathan Binkert
2c5fe6f95e build: fix compile problems pointed out by gcc 4.4 2009-11-04 16:57:01 -08:00
Vince Weaver
a1042db290 X86: Enable x86_64 vsyscall support 
64-bit vsyscall is different than 32-bit.
There are only two syscalls, time and gettimeofday.
On a real system, there is complicated code that implements these
without entering the kernel.  That would be complicated to implement in m5.
Instead we just place code that calls the regular syscalls (this is how
tools such as valgrind handle this case).

This is needed for the perlbmk spec2k benchmark.
 2009-11-04 00:47:12 -05:00
Vince Weaver
9b0a747dd4 X86: Hook up time syscall on X86 
This has been tested and verified that it works.
 2009-11-04 00:19:15 -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
Vince Weaver
cf269025f9 X86: Hookup truncate/ftruncate syscalls on X86 
This patch hooks up the truncate, ftruncate, truncate64 and ftruncate64
system calls on 32-bit and 64-bit X86.

These have been tested on both architectures.

ftruncate/ftruncate64 is needed for the f90 spec2k benchmarks.
 2009-10-30 12:51:13 -04:00
Gabe Black
3f722b991f Syscalls: Make system calls access arguments like a stack, not an array. 
When accessing arguments for a syscall, the position of an argument depends on
the policies of the ISA, how much space preceding arguments took up, and the
"alignment" of the index for this particular argument into the number of
possible storate locations. This change adjusts getSyscallArg to take its
index parameter by reference instead of value and to adjust it to point to the
possible location of the next argument on the stack, basically just after the
current one. This way, the rules for the new argument can be applied locally
without knowing about other arguments since those have already been taken into
account implicitly.

All system calls have also been changed to reflect the new interface. In a
number of cases this made the implementation clearer since it encourages
arguments to be collected in one place in order and then used as necessary
later, as opposed to scattering them throughout the function or using them in
place in long expressions. It also discourages using getSyscallArg over and
over to retrieve the same value when a temporary would do the job.
 2009-10-30 00:44:55 -07:00
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
Vince Weaver
5b6f707a00 hook up stat syscall on 64-bit x86_SE 2009-10-20 16:48:00 -04:00
Vince Weaver
2b473cb099 hook up stat64 syscall on 32-bit X86_SE 2009-10-20 14:44:51 -04:00
Vince Weaver
776f9405fa Fix stat64 structure on 32-bit X86_SE 
The st_size entry was in the wrong place
 (see linux-2.6.29/arch/x86/include/asm/stat.h )

Also, the packed attribute is needed when compiling on a
64-bit machine, otherwise gcc adds extra padding that
break the layout of the structure.
 2009-10-20 15:15:37 -04:00
Vince Weaver
56154cff5e Enable getuid and getgid related syscalls on X86_SE 
I've tested these on x86 and they work as expected.

In theory for 32-bit x86 we should have some sort of special
handling for the legacy 16-bit uid/gid syscalls, but in practice
modern toolchains don't use the 16-bit versions, and m5 sets the uid
and gid values to be less than 16-bits anyway.

This fix is needed for the perl spec2k benchmarks to run.
 2009-10-19 17:29:34 -04:00
Vince Weaver
22dc2b5595 Ignore rt_sigaction() syscalls on x86 and x86_64 
This is currently how alpha handles this syscall.

This is needed for the gcc spec2k benchmarks to run.
 2009-10-16 13:54:20 -04:00
Vince Weaver
30a185dcd0 Hook up the munmap() syscall for 32-bit x86. 
This is straightforward, as munmapFunc() doesn't do anything.
I've tested it with code running munmap() just in case.
 2009-10-10 22:31:56 -07:00
Gabe Black
44ceb80c2d X86: Make successive anonymous mmaps move down in 32 bit SE mode Linux. 2009-10-02 01:32:58 -07:00
Nathan Binkert
9a8cb7db7e python: Move more code into m5.util allow SCons to use that code. 
Get rid of misc.py and just stick misc things in __init__.py
Move utility functions out of SCons files and into m5.util
Move utility type stuff from m5/__init__.py to m5/util/__init__.py
Remove buildEnv from m5 and allow access only from m5.defines
Rename AddToPath to addToPath while we're moving it to m5.util
Rename read_command to readCommand while we're moving it
Rename compare_versions to compareVersions while we're moving it.

--HG--
rename : src/python/m5/convert.py => src/python/m5/util/convert.py
rename : src/python/m5/smartdict.py => src/python/m5/util/smartdict.py
 2009-09-22 15:24:16 -07:00
Gabe Black
931405da2f X86: Fix the expected size of the immediate offset in MOV_MI. 2009-09-17 02:56:06 -07:00
Gabe Black
c876a781a5 X86: Sign extend the immediate of wripi like the register version. 2009-09-16 19:29:51 -07:00
Gabe Black
7a0ef6c36f X86: Make the imm8 member of immediate microops really 8 bits consistently. 2009-09-16 19:28:57 -07:00
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
Vince Weaver
9b8e61beb3 Syscalls: Implement sysinfo() syscall. 2009-09-15 22:36:47 -07:00
Vince Weaver
9900ac95b5 [mq]: x86syscalls.patch 2009-09-15 05:30:08 -07:00
Gabe Black
e251b42c59 Merge with head. 2009-08-23 14:19:14 -07:00
Gabe Black
d0d597004f X86: Preserve the NO_ACCESS flag when giving CDA a specialized interface. 2009-08-23 14:16:58 -07:00
Nathan Binkert
890be77362 X86: fix some simple compile issues 
static should not be used for constants that are not inside a class definition.
 2009-08-21 09:10:25 -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
843d064668 X86: Add microassembler symbols for floating point stack register operands. 2009-08-20 00:41:27 -07:00
Gabe Black
ed088ed15e X86: Decode the immediate byte opcode extension for 3dNow! instructions. 2009-08-18 00:52:47 -07:00
Gabe Black
fd45c04cad X86: Decode three byte opcodes. 2009-08-18 00:52:45 -07:00
Gabe Black
9df74ab401 X86: Double check the two byte portion of the decoder and fix bugs/clean up. 2009-08-17 20:25:15 -07:00
Gabe Black
92867cac95 X86: Implement MOVNTI. 2009-08-17 20:25:15 -07:00
Gabe Black
6415252a0f X86: Initialize the MXCSR in SE mode. 2009-08-17 20:25:14 -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
e3ef432a55 X86: Implement a microop for converting 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
288f428632 X86: Implement a microop that compares fp values and writes 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
2c9ee52c37 X86: Implement a microop that compares fp values and writes 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
1fed0161d9 X86: Implement a shuffle media microop. 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
75528a497c X86: Implement a mask move microop. 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
90786e43fc X86: Implement a microop that moves 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
c0e850c77a X86: Fix a bug in the decoder where the insert/extract instructions go. 2009-08-17 20:22:56 -07:00
Gabe Black
965e546df3 X86: Extend mov2int and mov2fp so they can support insert and 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
f6b12bfa8d X86: Implement a media average microop. 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
200fed31de X86: Let the integer multiply microop use every other possible source value. 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
c8a0cf5df7 X86: Implement the media shift microops. These don't handle full 128 bit wide shifts. 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
470dcef229 X86: Implement a "sum of absolute differences" microop. 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
a4437f8f14 X86: Implement an integer media subtract microop. 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
3424de2861 X86: Implement a media integer multiply microop. 2009-08-17 20:15:15 -07:00
Gabe Black
c76459e5a7 X86: Make larger blocks of instructions use the Inst format by default. 2009-08-17 20:04:03 -07:00
Gabe Black
5d834c28eb X86: Implement the integer media max instructions. 2009-08-17 20:04:03 -07:00
Gabe Black
c9a954c77a X86: Implement an integer media max microop. 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
e2759fe69c X86: Add a media integer min microop. 2009-08-17 20:04:02 -07:00
Gabe Black
e678df6263 X86: Implement the media integer addition instructions. 2009-08-17 20:04:02 -07:00
Gabe Black
c278760da0 X86: Implement an integer media addition microop with optional saturation. 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
83df309a7e X86: Implement a media microop that converts between floating point data types. 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
f122c93faa X86: Implement a microop that compares fp values and writes a mask as its 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
8e97cd9c8f X86: Implement a media microop for converting integer values to floating point. 2009-08-17 18:41:25 -07:00
Gabe Black
b34b507fd8 X86: Implement the floating point media instructions. 2009-08-17 18:40:40 -07:00
Gabe Black
af3a53726b X86: Implement a floating point media divide microop. 2009-08-17 18:40:38 -07:00
Gabe Black
fcb5b2226c X86: Implement the floating point media multiply instructions. 2009-08-17 18:38:53 -07:00
Gabe Black
94e771e283 X86: Implement a floating point media multiply microop. 2009-08-17 18:38:51 -07:00
Gabe Black
dd81a34829 X86: Implement the floating point media subtract instructions. 2009-08-17 18:36:20 -07:00
Gabe Black
9fee8b75aa X86: Implement a media floating point subtract microop. 2009-08-17 18:36:18 -07:00
Gabe Black
49c2610c04 X86: Implement the floating point media add instructions. 2009-08-17 18:35:06 -07:00
Gabe Black
df163284fc X86: Implement a floating point media add microop. 2009-08-17 18:35:04 -07:00
Gabe Black
449db8a370 X86: Implement the media sqrt instructions. 2009-08-17 18:34:19 -07:00
Gabe Black
6a923c1c79 X86: Implement a media square root microop. 2009-08-17 18:34:16 -07:00
Gabe Black
09eed9ff62 X86: Implement the media floating point max instructions. 2009-08-17 18:33:28 -07:00
Gabe Black
8d37ce8652 X86: Implement the floating point media max microop. 2009-08-17 18:33:25 -07:00
Gabe Black
34f528bd95 X86: Implement the media floating point min instructions. 2009-08-17 18:32:12 -07:00
Gabe Black
1d706c0434 X86: Implement a floating point media min microop. 2009-08-17 18:32:09 -07:00
Gabe Black
e20c8a4b05 X86: Implement the pack instructions. 2009-08-17 18:32:08 -07:00
Gabe Black
1273277d3b X86: Create a pack media microop. 2009-08-17 18:27:54 -07:00
Gabe Black
e6b5192c26 X86: Rename sel to ext for media microops. 2009-08-17 18:27:44 -07:00
Gabe Black
80b4456fec X86: Move the MMX version of MOVD into the simd64 directory. 2009-08-17 18:27:30 -07:00
Gabe Black
63403bd562 X86: Implement the remaining unpack instructions. 2009-08-17 18:27:19 -07:00
Gabe Black
7b18f8a062 X86: Implement PANDN, ANDNPS, and ANDNPD. 2009-08-17 18:25:00 -07:00
Gabe Black
458521f055 X86: Implement a multimedia andn microop. 2009-08-17 18:24:58 -07:00
Gabe Black
3633392ec4 X86: Implement PAND, ANDPS, and ANDPD. 2009-08-17 18:24:18 -07:00
Gabe Black
ab49a34a4e X86: Implement a multimedia and microop. 2009-08-17 18:24:16 -07:00
Gabe Black
83a78072df X86: Implement POR, ORPD and ORPS. 2009-08-17 18:23:33 -07:00
Gabe Black
25c6b016a6 X86: Implement a media or microop. 2009-08-17 18:23:30 -07:00
Gabe Black
f9346d25c8 X86: Implement PXOR. 2009-08-17 18:23:04 -07:00
Gabe Black
69f0bf743c X86: (Re)implement XORPS and XORPD. 2009-08-17 18:22:37 -07:00
Gabe Black
982b3ad1f0 X86: Implement a media xor microop. 2009-08-17 18:22:33 -07:00
Gabe Black
f3fb444af4 X86: Implement PUNPCKLQDQ. 2009-08-17 18:21:46 -07:00
Gabe Black
cfaeb5eaf7 X86: Implement PUNPCKHQDQ. 2009-08-17 18:21:09 -07:00
Gabe Black
aabbb22cca X86: Implement PUNPCKHDQ. 2009-08-17 18:20:50 -07:00
Gabe Black
535ba241f8 X86: Implement PUNPCKHWD. 2009-08-17 18:19:43 -07:00
Gabe Black
093b5b3274 X86: Implement PUNPCKHBW. 2009-08-17 18:19:19 -07:00
Gabe Black
3ae2f03927 X86: Implement PUNPCKLDQ. 2009-08-17 18:19:01 -07:00
Gabe Black
673b19f5d4 X86: Implement PUNPCKLWD. 2009-08-17 18:18:40 -07:00
Gabe Black
ae4ee21ecd X86: Implement the versions of PUNPCKLBW that use XMM registers. 2009-08-17 18:18:19 -07:00
Gabe Black
24496060e5 X86: Implement the MOVQ instruction. 2009-08-17 18:17:29 -07:00
Gabe Black
f1bfa9d6e4 X86: Implement the lfpimm microop. 2009-08-17 18:17:26 -07:00
Gabe Black
fca7cb83f0 X86: Implement the versions of MOVD that have an MMX source. 2009-08-17 18:16:07 -07:00
Gabe Black
247ed2379d X86: Implement the versions of PUNPCKLBW that use MMX registers. 2009-08-17 18:15:42 -07:00
Gabe Black
ecc62e750e X86: Implement an unpack microop. 2009-08-17 18:15:39 -07:00
Gabe Black
6457fb7003 X86: Implement the versions of MOVD that have an MMX destination. 2009-08-17 18:15:24 -07:00
Gabe Black
191590bcc4 X86: Ignore the size part of XMM/MMX operands. The instructions know what they want. 2009-08-17 18:15:23 -07:00
Gabe Black
33cb4c2f09 X86: Use suffixes to differentiate XMM/MMX/GPR operands. 2009-08-17 18:15:21 -07:00
Gabe Black
3a4438a868 X86: Add microcode assembler symbols for mmx registers. 2009-08-17 18:15:19 -07:00
Gabe Black
2f1001e95c X86: Set up a media microop framework and create mov2int and mov2fp microops. 2009-08-17 18:15:18 -07:00
Gabe Black
cec4e3b39e X86: Create base classes for use with media/SIMD microops. 2009-08-17 18:15:16 -07:00
Gabe Black
0b68fbdbe1 X86: Turn the DIV and IDIV microcode into templates and generate all the variants. 2009-08-17 18:15:14 -07:00
Gabe Black
a9b2bf5119 X86: Remove some FIXMEs from IDIV that have been fixed. 2009-08-17 18:15:13 -07:00
Gabe Black
3f2f3bede8 X86: Turn the CMPXCHG8B microcode into a template and generate each variant. 2009-08-17 18:15:00 -07:00
Gabe Black
32c8514b45 X86: Fix a bug introduced to IDIV in a recent attempt to fix another bug. 2009-08-17 00:20:03 -07:00
Gabe Black
c5fae51774 X86: Implement the CMPXCHG8B/CMPXCHG16B instruction. 2009-08-09 01:01:41 -07:00
Gabe Black
bbf117b20e X86: Don't clobber the original dividend when doing signed divide. 2009-08-09 01:01:18 -07:00
Gabe Black
3b07a5829d X86: Decode byte sized singed divide as byte sized. 2009-08-09 01:00:47 -07:00
Gabe Black
6e97feb8a5 X86: Make not taken conditional moves leave the destination alone. Adjust CMOVcc. 
The manuals from both AMD and Intel say that when writing to a 32 bit
destination in 64 bit mode, the upper 32 bits of the register are filled with
zeros. They also both say that the CMOV instructions leave their destination
alone when their condition fails. Unfortunately, it seems that CMOV will zero
extend its destination register whether or not it was supposed to actually do
a move on both platforms. This seems to be the only case where this happens,
but it would be hard to say for sure.
 2009-08-08 17:23:19 -07:00
Gabe Black
7c606e3835 X86: (Re)Implemented SHRD. 2009-08-07 10:13:33 -07:00
Gabe Black
4f5270f946 X86: Implement SHLD. 2009-08-07 10:13:24 -07:00
Gabe Black
3a55fc5cac X86: Implement shift right/left double microops. 
This is my best guess as far as what these should do. Other existing microops
use implicit registers, mul1s and mul1u for instance, so this should be ok.
The microop that loads the implicit DoubleBits register would fall into one
of the microop slots for moving to/from special registers.
 2009-08-07 10:13:20 -07:00
Gabe Black
62a2e85c9a X86: Make the qaud width bswap instruction handle the fact that 32 bit operations zero extend. 2009-08-07 10:12:58 -07:00
Gabe Black
0526f453aa X86: Use the right field when using legacy prefixes to distinguish instructions. 2009-08-07 10:12:52 -07:00
Gabe Black
2daba26359 X86: Don't truncate the immediate parameter for the ENTER instruction. 2009-08-07 10:12:29 -07:00
Gabe Black
2e3446a410 X86: Adjust the various sizes used for the enter and leave instructions. 2009-08-06 21:44:42 -07:00
Gabe Black
c7b894a06f X86: Make scas compare its operands in the right order. 2009-08-06 21:44:41 -07:00
Gabe Black
011c1865ad X86: Fix a copy/paste error for cmovnp. 2009-08-06 21:44:40 -07:00
Gabe Black
da2df2fc25 X86: Make conditional moves zero extend their 32 bit destinations always. 2009-08-05 03:07:55 -07:00
Gabe Black
b64d0bdeda X86: Fix condition code setting for signed multiplies with negative results. 2009-08-05 03:07:01 -07:00
Gabe Black
2914a8eb16 X86: Make the check for negative operands for sign multiply more direct. 2009-08-05 03:06:37 -07:00
Gabe Black
e2e0ae576a X86: Make sure immediate values are truncated properly. 
Register values will be "picked" which will assure they don't have junk beyond
the part we're using. Immediate values don't go through a similar process, so
we should truncate them explicitly.
 2009-08-05 03:06:01 -07:00
Gabe Black
ef3896d851 X86: Use the new forced folding mechanism for the SAHF and LAHF instructions. 2009-08-05 03:04:17 -07:00
Gabe Black
664d50b439 X86: Fix the indexing for ah in byte division instructions. 2009-08-05 03:03:41 -07:00
Gabe Black
abe8fb3844 X86: Fix the indexing for ah in byte multiply instructions. 2009-08-05 03:03:28 -07:00
Gabe Black
df1abc4412 X86: Let microops force folding an index into the high byte of a register. 2009-08-05 03:03:07 -07:00
Gabe Black
c4140d7d60 X86: Handle rotate left with carry instructions that go all the way around or more. 2009-08-05 03:02:28 -07:00
Gabe Black
3990445354 X86: Set the flags on rotate left with carry instructions. 2009-08-05 03:02:05 -07:00
Gabe Black
d265f7683e X86: Handle rotate right with carry instructions that go all the way around or more. 2009-08-05 03:01:49 -07:00
Gabe Black
77dc6b33ee X86: Fix the overflow bit for rotate right with carry. 2009-08-05 03:01:23 -07:00
Gabe Black
c8b1a4583e X86: Fix the computation of the bottom part of rotate right with carry. 2009-08-05 03:01:07 -07:00
Gabe Black
bab4597fc5 X86: Fix the computation of the upper part of rotate right with carry. 2009-08-05 03:00:43 -07:00
Gabe Black
4e4adcaaa8 X86: Set the flags for rotate right with carry instructions. 2009-08-05 03:00:23 -07:00
Gabe Black
64d7948692 X86: Handle rotating right all the way around or more. 2009-08-05 03:00:03 -07:00
Gabe Black
88041f75c4 X86: Set the flags on a rotate right instruction. 2009-08-05 02:59:39 -07:00
Gabe Black
029d360db2 X86: Make shifts/rotations that write to 32 bits of a register zero extend. 2009-08-05 02:59:25 -07:00
Gabe Black
7f9a3af250 X86: Handle left rotations that go all the way around or more. 2009-08-05 02:58:54 -07:00
Gabe Black
99adfd9dae X86: Actually set the flags on a rotate left instruction. 2009-08-05 02:58:20 -07:00
Gabe Black
c087b60af3 X86: Fix the sar carry flag. 2009-08-05 02:58:03 -07:00
Gabe Black
860f0f8350 X86: Fix sign extension when doing an arithmetic shift right by 0. 2009-08-05 02:57:47 -07:00
Gabe Black
a238959c34 X86: Fix the carry flag for shr. 2009-08-05 02:56:49 -07:00
Gabe Black
22a5f66820 X86: Fix the carry flag for shl. 2009-08-05 02:56:38 -07:00
Gabe Black
df2c862a07 X86: Fix how the parity flag is computed. 
It's only for the lowest order byte, and I had the polarity wrong.
 2009-08-05 02:56:12 -07:00
Gabe Black
676dc6d292 X86: Fix segment override prefixes on instructions that use rbp/rsp and a displacement. 2009-08-03 11:01:40 -07:00
Gabe Black
aff57202b4 X86: Fix the high result of mul1s, and removed undefined shifts from the mult microops. 2009-08-02 08:39:29 -07:00
Steve Reinhardt
1c28004654 Clean up some inconsistencies with Request flags. 2009-08-01 22:50:13 -07:00
Gabe Black
3e8e813218 CPU: Separate out native trace into ISA (in)dependent code and SimObjects. 
--HG--
rename : src/cpu/nativetrace.cc => src/arch/sparc/nativetrace.cc
rename : src/cpu/nativetrace.hh => src/arch/sparc/nativetrace.hh
rename : src/cpu/NativeTrace.py => src/arch/x86/X86NativeTrace.py
 2009-07-19 23:54:56 -07:00
Gabe Black
f0cb698a87 X86: Move a displaced comment back to where it goes. 2009-07-19 23:51:47 -07:00
Gabe Black
563654275f X86: Add some misc registers for FP control state. 2009-07-19 23:51:41 -07:00
Gabe Black
d85cd08113 X86: Set up a named constant for the "fold bit" for int register indices. 2009-07-17 18:49:22 -07:00
Gabe Black
7b6587fc9c X86: Tame the wilds of def operands. 2009-07-17 00:29:56 -07:00
Gabe Black
df378285f8 X86: Shift some register flattening work into the decoder. 2009-07-17 00:29:42 -07:00
Gabe Black
e9eccf7225 X86: Add range checks for miscreg indexing utility functions. 2009-07-16 09:30:14 -07:00
Gabe Black
ba6b8389ee X86: Take limitted advantage of the compilers type checking for microop operands. 2009-07-16 09:29:29 -07:00
Gabe Black
80c834ccac X86: Fix a number of places where the wrong form of a microop was used. 2009-07-16 09:27:56 -07:00
Gabe Black
3f9b0cc5ca X86: Fix x87 stack register indexing. 2009-07-16 09:26:38 -07:00
Gabe Black
9993ca8280 X86: Fold the MiscRegFile all the way into the ISA object. 2009-07-09 20:29:02 -07:00
Gabe Black
c9a27d85b9 Get rid of the unused get(Data|Inst)Asid and (inst|data)Asid functions. 2009-07-08 23:02:22 -07:00
Gabe Black
b398b8ff1b Registers: Add a registers.hh file as an ISA switched header. 
This file is for register indices, Num* constants, and register types.
copyRegs and copyMiscRegs were moved to utility.hh and utility.cc.

--HG--
rename : src/arch/alpha/regfile.hh => src/arch/alpha/registers.hh
rename : src/arch/arm/regfile.hh => src/arch/arm/registers.hh
rename : src/arch/mips/regfile.hh => src/arch/mips/registers.hh
rename : src/arch/sparc/regfile.hh => src/arch/sparc/registers.hh
rename : src/arch/x86/regfile.hh => src/arch/x86/registers.hh
 2009-07-08 23:02:21 -07:00
Gabe Black
5c37d10624 Registers: Eliminate the ISA defined RegFile class. 2009-07-08 23:02:21 -07:00
Gabe Black
43345bff6c Registers: Move the PCs out of the ISAs and into the CPUs. 2009-07-08 23:02:21 -07:00
Gabe Black
ecde884404 X86: Phase out x86's intregfile.hh. 2009-07-08 23:02:20 -07:00
Gabe Black
a480ba00b9 Registers: Eliminate the ISA defined integer register file. 2009-07-08 23:02:20 -07:00
Gabe Black
0cb180ea0d Registers: Eliminate the ISA defined floating point register file. 2009-07-08 23:02:20 -07:00
Gabe Black
25884a8773 Registers: Get rid of the float register width parameter. 2009-07-08 23:02:20 -07:00
Gabe Black
32daf6fc3f Registers: Add an ISA object which replaces the MiscRegFile. 
This object encapsulates (or will eventually) the identity and characteristics
of the ISA in the CPU.
 2009-07-08 23:02:20 -07:00
Gabe Black
d029110fa1 X86: Fix a bug in IRET_PROT's microcode. The immediate form of sra was intended. 2009-07-08 23:01:54 -07:00
Gabe Black
7f50ea05ac X86: Keep track of more descriptor state to accomodate KVM. 2009-05-28 23:27:56 -07:00
Gabe Black
d93392df28 X86: Really set up the GDT and various hidden/visible segment registers. 2009-05-26 02:23:08 -07:00
Nathan Binkert
8d2e51c7f5 includes: sort includes again 2009-05-17 14:34:52 -07:00
Nathan Binkert
709d859530 includes: use base/types.hh not inttypes.h or stdint.h 2009-05-17 14:34:51 -07:00
Nathan Binkert
eef3a2e142 types: Move stuff for global types into src/base/types.hh 
--HG--
rename : src/sim/host.hh => src/base/types.hh
 2009-05-17 14:34:50 -07:00
Gabe Black
7146eb79f1 X86: Precompute the default and alternate address and operand size and the stack size. 2009-04-26 16:49:24 -07:00
Gabe Black
b6bfe8af26 X86: Split out the internal memory space from the regular translate() and precompute mode. 2009-04-26 16:48:44 -07:00
Gabe Black
4ee34dfb4e X86: Centralize updates to the handy M5 reg. 2009-04-26 16:47:48 -07:00
Gabe Black
2f34a7eaeb X86: Tell the function that sends int messages who to send to instead of figuring it out itself. 2009-04-26 02:09:27 -07:00
Gabe Black
88ab4bb257 X86: Make the local APICs register themselves with the IO APIC. 
This is a hack so that the IO APIC can figure out information about the local
APICs. The local APICs still have no way to find out about each other.
Ideally, when the local APICs update state that's relevant to somebody else,
they'd send an update to everyone. Without being able to do a broadcast, that
would still require knowing who else there is to notify. Other broadcasts are
implemented using assumptions that may not always be true.
 2009-04-26 02:09:13 -07:00
Gabe Black
c5e2cf841d X86: Record the initial APIC ID which identifies an APIC in M5. 
The ID as exposed to software can be changed. Tracking those changes in M5
would be cumbersome, especially since there's no guarantee the IDs will remain
unique.
 2009-04-26 02:06:21 -07:00
Gabe Black
ee7055c289 X86: Put the StoreCheck flag with the others, and don't collide with other flags. 2009-04-23 01:43:00 -07:00
Steve Reinhardt
52b6764f31 syscall: Resolve conflicts between m5threads and Gabe's recent SE changes. 2009-04-21 08:17:36 -07:00
Daniel Sanchez
b0e9654f86 Commit m5threads package. 
This patch adds limited multithreading support in syscall-emulation
mode, by using the clone system call.  The clone system call works
for Alpha, SPARC and x86, and multithreaded applications run
correctly in Alpha and SPARC.
 2009-04-21 08:17:36 -07:00
Gabe Black
089b384086 X86: Fix the functions that manipulate large bit arrays in the local APIC. 2009-04-19 13:47:15 -07:00
Gabe Black
eee74ba427 X86: Fix up a copyright. 2009-04-19 13:17:35 -07:00
Gabe Black
6910baa015 X86: Fix how the TLB handles the storecheck flag. 2009-04-19 04:57:51 -07:00
Gabe Black
0a6ff60caa X86: Recognize and handle the lock legacy prefix. 2009-04-19 04:57:28 -07:00
Gabe Black
61edc9ba66 X86: Implement a locking version of XADD. 2009-04-19 04:56:49 -07:00
Gabe Black
209cfc89fd X86: Implement a locking version of BTC. 2009-04-19 04:56:45 -07:00
Gabe Black
e475cf85f0 X86: Implement a locking version of BTR. 2009-04-19 04:56:43 -07:00
Gabe Black
43f58927d6 X86: Implement a locking version of CMPXCHG. 2009-04-19 04:56:40 -07:00
Gabe Black
b493906eb9 X86: Implement a locking version of BTS. 2009-04-19 04:56:36 -07:00
Gabe Black
985d959ea6 X86: Implement a locking version of DEC. 2009-04-19 04:56:34 -07:00
Gabe Black
4f2d4f466a X86: Implement a locking version of INC. 2009-04-19 04:56:31 -07:00
Gabe Black
2394f73f90 X86: Implement a locking version of NEG. 2009-04-19 04:56:28 -07:00
Gabe Black
9b9b7a412c X86: Implement a locking version of NOT. 2009-04-19 04:56:25 -07:00
Gabe Black
b8f81c62a2 X86: Implement a locking version of XCHG. 2009-04-19 04:56:22 -07:00
Gabe Black
750f5a0a67 X86: Implement a locking version of XOR. 2009-04-19 04:56:20 -07:00
Gabe Black
cfb289ebeb X86: Implement a locking version of SUB. 2009-04-19 04:56:16 -07:00
Gabe Black
789b3191b9 X86: Implement a locking version of AND. 2009-04-19 04:56:14 -07:00
Gabe Black
e742cad6f4 X86: Implement a locking version of SBB. 2009-04-19 04:56:11 -07:00
Gabe Black
193265c6e5 X86: Implement a locking version of ADC. 2009-04-19 04:56:08 -07:00
Gabe Black
2f607b882c X86: Implement a locking version of OR. 2009-04-19 04:56:06 -07:00
Gabe Black
a7f79c9049 X86: Implement a locking version of ADD. 2009-04-19 04:56:02 -07:00
Gabe Black
d90456a486 X86: Implement the stul microop. 
This microop does a store and unlocks the requested address. The RISC86
microop ISA doesn't seem to have an equivalent to this, so I'm guessing that
the store following an ldstl is automatically unlocking. We don't do it this
way for performance reasons since the behavior is the same.
 2009-04-19 04:55:58 -07:00
Gabe Black
d2554ff030 X86: Implement the ldstl microop. 
This microop does a load, checks that a store would succeed, and locks the
requested address.
 2009-04-19 04:55:43 -07:00
Gabe Black
ca85981478 SE mode: Make keeping track of the number of syscalls less hacky. 2009-04-19 04:15:32 -07:00
Gabe Black
5f164ba720 X86: Actually handle 16 bit mode modrm. 2009-04-19 04:14:31 -07:00
Gabe Black
93cccf7d19 X86: Make the TEST instruction set all the flags it's supposed to. 2009-04-19 04:14:16 -07:00
Gabe Black
f82c123242 X86: Implement broadcast IPIs. 2009-04-19 04:14:01 -07:00
Gabe Black
829e424353 X86: Fix the ordering of the vendor string reported by CPUID. 2009-04-19 04:13:45 -07:00
Gabe Black
18b3863127 X86: Only recognize the first startup IPI after INIT or reset. 2009-04-19 03:56:36 -07:00
Gabe Black
4d32cd10ce X86: Use recvResponse to implement the idle bit in the Local APIC ICR. 2009-04-19 03:56:24 -07:00
Gabe Black
bdda224d41 X86: Add a function which gets called when an interrupt message has been delivered. 2009-04-19 03:54:11 -07:00
Gabe Black
3eed59768c X86: Explicitly use the right width in a few places that need a 64 bit value. 2009-04-19 03:47:59 -07:00
Gabe Black
8761057c78 X86: Keep track of the pioAddr for the local APIC. 2009-04-19 03:47:12 -07:00
Gabe Black
038225a6ca X86: Implement far jmp. 2009-04-19 03:42:41 -07:00