sanchayanmaity/gem5
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233 commits

Author SHA1 Message Date
Gabe Black
65db30992c X86: Take into account the regular registers and the microcode registers when decided whether or not to fold. 
--HG--
extra : convert_revision : 26feec984dec61799c4afb03a4503a53c35872c5
 2007-07-30 15:38:40 -07:00
Gabe Black
9536120845 X86: Fix up the stat structure. This probably still isn't right. 
--HG--
extra : convert_revision : 2e2a22cdf3abe648c9e1309b9070cfd10fc4a8b8
 2007-07-30 13:31:59 -07:00
Gabe Black
a1b193f026 X86: Hook in the new instructions. 
--HG--
extra : convert_revision : c4233001b35b52161083482841593ec28da6ff7d
 2007-07-30 13:31:27 -07:00
Gabe Black
ab8ba813c9 X86: Turn on some system calls, and make the kernel version match my development machine. 
--HG--
extra : convert_revision : 2f1969a45aa82708dc4cddef09c01306f76f0a81
 2007-07-30 13:30:41 -07:00
Gabe Black
9e2b1f8630 X86: Make sure FP_Base_DepTag is big enough to avoid trouble. 
--HG--
extra : convert_revision : 7e0a83d5deb7fc9aaa69b7d024ea6ae6890df133
 2007-07-30 13:29:56 -07:00
Gabe Black
18be07289f X86: Implement a stub CPUID function which is hardcode to return certain values. 
--HG--
extra : convert_revision : 4085e04fd13e834646106faa55726d07d9631f42
 2007-07-30 13:29:33 -07:00
Gabe Black
dbc979b9e2 X86: Force jumps to use 64 bit operand size. 
--HG--
extra : convert_revision : 1c3685e7f4d07d5b4ded6c78b794964f51a358a9
 2007-07-30 13:28:31 -07:00
Gabe Black
bae96272a1 X86: Make instructions use pick, and implement/adjust some multiplication microops and instructions. 
--HG--
extra : convert_revision : 5c56f6819ee07d936b388b3d1810a3b73db84f9c
 2007-07-30 13:28:05 -07:00
Gabe Black
fad96cd0fc X86: Make merge and pick work with high bytes. Fix a sizing issue in pick. 
--HG--
extra : convert_revision : 4ddc2ca8c23bb7e90a646329ebf27a013ac5e3d6
 2007-07-30 13:26:48 -07:00
Gabe Black
0d31a41304 X86: Make register names in disassembly reflect high bytes. 
--HG--
extra : convert_revision : e2891581e5504de0a2c8e5932fd22425cafd4fc7
 2007-07-30 13:26:14 -07:00
Gabe Black
31a862b8f1 X86: missed a file which adds a "fold" bit. 
--HG--
extra : convert_revision : 2c8eea425221d069a9bb888c8f18839843061899
 2007-07-30 13:25:38 -07:00
Gabe Black
da84aa95a9 Make the register indices use the appropriate "fold" bit. 
--HG--
extra : convert_revision : 89e15e2ef1f709f2c09238b78f94505ce8ef146d
 2007-07-30 13:25:00 -07:00
Gabe Black
d8beeff324 X86: Make disassembly use the final register index. Add bits to indicate whether or not register indexes should be "folded". 
--HG--
extra : convert_revision : 4b46e71ca91e480f6e1662b7f37b75240d6598e9
 2007-07-30 13:23:33 -07:00
Gabe Black
9b5421dcba X86: Missed a file for adding a bit to indicate that an REX prefix was present. 
--HG--
extra : convert_revision : f1bbd5165a7415d0daf27660575d30c41510f531
 2007-07-30 13:20:08 -07:00
Gabe Black
4b3a20cdec X86: Implement LEAVE 
--HG--
extra : convert_revision : c642d5018ece82c644e1cfa389b2d3dbd6ab5ffd
 2007-07-30 13:19:11 -07:00
Gabe Black
e70ffb0117 X86: Add a bitfield to indicate whether or not an REX prefix was present. 
--HG--
extra : convert_revision : 9c4802f6c6e4eaab36aac900e2c7576682cb0f33
 2007-07-30 13:17:34 -07:00
Gabe Black
7309d5ee45 X86: Make logic instructions flag setting work. 
The instructions now ask for the appropriate flags to be set, and the microops do the "right thing" with the CF and OF flags, namely zero them.

--HG--
extra : convert_revision : 85138a832f44c879bf8a11bd3a35b58be6272ef3
 2007-07-29 13:51:40 -07:00
Gabe Black
1af50a9e8b X86: Make arithmetic instructions set the appropriate flags. 
--HG--
extra : convert_revision : 3bdef3876c7b86bc93365edee876b74a201d625f
 2007-07-29 13:50:10 -07:00
Gabe Black
5e34c62b3b X86: Initial stack frame fixes and constant shuffling. 
The initial stack frame for x86 is now substantially more correct. The fixes made here can be back ported to SPARC and possible the other ISAs as well. The auxiliary vector types were moved to the LiveProcess base class because they are independent of ISA. Some of the types may only apply to Linux, though, so they may have to be moved.

--HG--
extra : convert_revision : 89ace35fcc8eb9586d2fee8eeccbc3686499ef24
 2007-07-29 01:33:06 -07:00
Gabe Black
e5f5890365 X86: Make limm use merge and allow overriding the data size. 
--HG--
extra : convert_revision : c6057226b8ff8f272612a9d3bf7d1d9ba90c819b
 2007-07-29 01:30:28 -07:00
Gabe Black
33847f8c83 X86: return -return_value.value() on failure. 
--HG--
extra : convert_revision : d8e1486ff075b2917be62a0008f83fd6c9e4c09a
 2007-07-29 01:27:34 -07:00
Gabe Black
d995575342 X86: Fix popa and push with the stack pointer. 
POPA used st instead of ld, and it didn't skip rsp. push rsp needs to store the -original- value of the stack pointer.

--HG--
extra : convert_revision : 376370c99b6ab60fb2bc4cd4f0a6dce71153ad06
 2007-07-29 01:26:47 -07:00
Gabe Black
3dcd848ec3 X86: Fix a bug with merge 
Merge was returning the value to merge in, not the actual result of the merge.

--HG--
extra : convert_revision : 230b4b5064037d099ae7859edabdf5be84603849
 2007-07-29 01:24:57 -07:00
Gabe Black
dc86f3229c X86: Fix a comment and adjust the stack base address. 
The stack base on my development machine starts one page below where it needs to. I don't know why it does, but I've duplicated it in m5.

--HG--
extra : convert_revision : c4783ba885b90f17e843f61e07af0bc3330a74bc
 2007-07-28 21:18:53 -07:00
Gabe Black
e996ff7497 X86: Fix up auxiliary vectors. 
The type constants should go into an architecture independent spot since they are universal to all Linux elf binaries. The right value for some of the vectors needs to be determined. Also, x86 does not store argc or argv_array_base in registers like some other architectures.

--HG--
extra : convert_revision : 8d3f6a3e028d881d3c41e8ddf4f29d25738b529c
 2007-07-28 20:33:42 -07:00
Gabe Black
d1e533a1e2 X86: Fix argument register indexing. 
Code was assuming that all argument registers followed in order from ArgumentReg0. There is now an ArgumentReg array which is indexed to find the right index. There is a constant, NumArgumentRegs, which can be used to protect against using an invalid ArgumentReg.

--HG--
extra : convert_revision : f448a3ca4d6adc3fc3323562870f70eec05a8a1f
 2007-07-26 22:13:14 -07:00
Gabe Black
876849724d X86: Hook in shift and rotate by one instructions, and NOT. 
--HG--
extra : convert_revision : b3ab74e09f5cd02671cc6425c8cb8638bd58cbee
 2007-07-26 22:10:59 -07:00
Gabe Black
edaaf1ebf1 X86: Fix pc relative versions of add and subtract. 
--HG--
extra : convert_revision : c7e578aae8d36aa5d279fc27d6d7d28ed0a54181
 2007-07-26 22:10:21 -07:00
Gabe Black
647a3270d1 X86: Implement rotate-by-one instructions, and make register rotates use registers. 
--HG--
extra : convert_revision : 701691951688ecefdc6450d31076b45e9af15324
 2007-07-26 22:09:41 -07:00
Gabe Black
9e975a7e08 X86: Implement shift-by-one instructions, and make register shifts use registers. 
--HG--
extra : convert_revision : ce4af3e56b45821e0a8b27f288b532d2f9dd3336
 2007-07-26 22:09:24 -07:00
Gabe Black
c0670187c5 X86: Add functions to read and write to an exec context. 
These functions take care of calling the thread contexts read and write functions with the right sized data type, and handle unaligned accesses.

--HG--
extra : convert_revision : b4b59ab2b22559333035185946bae3eab316c879
 2007-07-26 22:08:35 -07:00
Gabe Black
57428b8b0b X86: Fix carry calculation for subtraction based microops. 
The carry flag should be calculated using the -complement- of the second operand, not it's negation. The carry in which is part of computing the 2's complement may induce a carry, but if you've already caused the carry before you get the carry computing logic involved, it will miss it.

--HG--
extra : convert_revision : 318cf86929664fc52ed9e023606a9e892eba635c
 2007-07-26 22:06:30 -07:00
Gabe Black
749ed15b60 Add functions for mmap and brk. 
--HG--
extra : convert_revision : 3d0340a2aae87b3462d6562b34ac7e02c685c1ef
 2007-07-26 22:04:33 -07:00
Gabe Black
7d826f632c Implement NOT 
--HG--
extra : convert_revision : 09cbed6332224d06644d401f21178eb7914993df
 2007-07-26 22:03:19 -07:00
Gabe Black
02c39000bf Hook in a bunch of new instructions, fix a few minor bugs, and expand out one of the prefix multiplexed opcode groups. 
--HG--
extra : convert_revision : b5afd54a180a8fbdf9a892b1a2316fcf0d11afc6
 2007-07-24 15:43:38 -07:00
Gabe Black
93365f7d1a Add a tgt_iovec structure to support writev, change the name of X86Linux to X86Linux64, add some syscalls. 
--HG--
extra : convert_revision : 9c13e9c68f331fe6c4a9abd96f7aee0f064101fc
 2007-07-24 15:42:11 -07:00
Gabe Black
4bb1c5ba0c Add a special case for "test" which needs an immediate even though everything else with it's opcode doesn't. 
Also made some spacing consistent.

--HG--
extra : convert_revision : 72a317f29c11705782e19840bef24354214d3143
 2007-07-24 15:37:16 -07:00
Gabe Black
97c4258383 The groups of instructions hanging off opcode 71h, 72h, and 73h all need a byte immediate 
--HG--
extra : convert_revision : 9559047adfec1490c2d40065442a579549624fcc
 2007-07-24 15:19:02 -07:00
Gabe Black
69f4a6dc86 Make the shift and rotate microops mask the shift/rotate amount correctly. 
--HG--
extra : convert_revision : 31c5d3fa8ef0d37494d0e35cef31be6056d5d93f
 2007-07-24 15:10:53 -07:00
Gabe Black
15f57bd7cb Fix immediate shifts. Implement register shifts. 
--HG--
extra : convert_revision : 0b83422ad3c190021e46cada07e64d8d57d29859
 2007-07-24 15:10:20 -07:00
Gabe Black
66911a1fab Fix immediate rotates and add register ones. 
--HG--
extra : convert_revision : a6b9cee59019ea0f906c8a8e76eeb2cd73093671
 2007-07-24 15:08:56 -07:00
Gabe Black
d961846e8c Clean out part of an old comment. 
--HG--
extra : convert_revision : 6a6b2a06576ebe7383f7ce0e4e9f96bc96b84b56
 2007-07-24 15:08:09 -07:00
Gabe Black
340ce8e680 Implement cmov. 
--HG--
extra : convert_revision : 2e92623b53c1fe8b4da3fef3486c0dcd8d5ef9f5
 2007-07-24 15:07:35 -07:00
Gabe Black
28614addff Implement cdqe and cqo, which are also called cbw and cwde, and cwd and cdq respectively, depending on the operand size. 
--HG--
extra : convert_revision : 67ac035c68608d7260c21ce32009b344f3834e46
 2007-07-24 15:07:03 -07:00
Gabe Black
f8f7f994b8 Implement setcc. 
--HG--
extra : convert_revision : 7a47b9971fe9e4ac638b275fb56fdcba08c2d671
 2007-07-24 15:05:17 -07:00
Gabe Black
1cec0a3249 Get rid of an old comment. 
--HG--
extra : convert_revision : 1b86a7f60489bc65a03919b27afd4dfbe4e09bba
 2007-07-24 15:04:53 -07:00
Gabe Black
7e52393432 Get rid of an old comment 
--HG--
extra : convert_revision : 4d626721ad54af9cbf5b0c07a3a6e8a05e4e9ab5
 2007-07-24 15:03:43 -07:00
Gabe Black
ecf2621f4f Implement pusha, popa, three operand imul, hook them into the decoder, and clean up the decoder a little. 
--HG--
extra : convert_revision : c1b8f0f433f629e4104e2b04addcdaabf57595e3
 2007-07-23 11:20:57 -07:00
Gabe Black
85f9415a67 Make the operand size reflect the size specifier on the operand tags, and implement NEG 
--HG--
extra : convert_revision : da73ed6820d57f083c18f44b2fa868fc0976dd16
 2007-07-23 01:07:49 +00:00
Gabe Black
2cd454d102 Add the "open" syscall. 
--HG--
extra : convert_revision : d405ed5d3738639809dd2887955db9253138ccbb
 2007-07-22 02:43:03 +00:00