sanchayanmaity/gem5
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
4790 commits 2 branches 0 tags 204 MiB
Commit graph

4790 commits

This branch
This branch
All branches
Author SHA1 Message Date
Gabe Black
ec5f66190e Fix code that computes displacement size. 
--HG--
extra : convert_revision : a9be3eb2b90b88086936aeb4dcf87ec7b58a48cb
 2007-07-20 14:57:34 -07:00
Gabe Black
5d882984d1 Add a bitfield to decode based on what prefixes are used. 
--HG--
extra : convert_revision : 7ff4998b3249ccfe86ae9cbcc63fb910683707f5
 2007-07-20 14:57:04 -07:00
Gabe Black
dcfaa348b1 Add a parameter type to read a register index from the opcode itself. 
--HG--
extra : convert_revision : d2b5468ebf5df5a6ccadb57a30c52c8d16417b9a
 2007-07-20 14:55:16 -07:00
Gabe Black
ee22bcd609 Fix function which calculates the carry flag. 
--HG--
extra : convert_revision : aeb4f2d4c3936089421dbe80647f28ae36178283
 2007-07-20 14:54:17 -07:00
Gabe Black
0baae59c09 Fix carry flag for subtracts, and clean up code slightly. 
--HG--
extra : convert_revision : 668f5d5aeba888488b41284de6c72a0d055c4ef4
 2007-07-20 14:53:38 -07:00
Gabe Black
0781609693 Fixed width parameter and provided a parameter to flip the carry bit on subtract. 
--HG--
extra : convert_revision : d01bb791b000a2fdfc8600f8fb2f8aadd52b0b63
 2007-07-20 14:52:44 -07:00
Gabe Black
cfadef74d1 x86 fixes 
Make the emulation environment consider the rex prefix.
Implement and hook in forms of j, jmp, cmp, syscall, movzx
Added a format for an instruction to carry a call to the SE mode syscalls system
Made memory instructions which refer to the rip do so directly
Made the operand size overridable in the microassembly
Made the "ext" field of register operations 16 bits to hold a sparse encoding of flags to set or conditions to predicate on
Added an explicit "rax" operand for the syscall format
Implemented syscall returns.

--HG--
extra : convert_revision : ae84bd8c6a1d400906e17e8b8c4185f2ebd4c5f2
 2007-07-19 15:15:47 -07:00
Gabe Black
09f056a1ef Check for the two opcode prefix correctly and add in some instructions. 
--HG--
extra : convert_revision : 751e54843f5c81b81529050a1ae9d46d07c36e97
 2007-07-18 17:51:05 -07:00
Gabe Black
f6d326d6fc Hook near returns into the decoder. 
--HG--
extra : convert_revision : b38d4417552991e44f5d1de1f35d5d1ad8f32340
 2007-07-18 17:48:16 -07:00
Gabe Black
dbf361128a Implement near returns. 
--HG--
extra : convert_revision : 3d6e8a976d31cb016a4b78200716b0ece155137a
 2007-07-18 17:47:40 -07:00
Gabe Black
99310a1d93 Make instructions that conditionally set registers set them to their old value if they don't actually execute. 
--HG--
extra : convert_revision : 36e63dd0c6ac1a3e1133c7985cf5507b83e9ee45
 2007-07-18 17:46:38 -07:00
Gabe Black
776283cff8 Fix the overload which prints ExtMachInst in X86. 
--HG--
extra : convert_revision : 2ef8ee71999f36b09270ba9526c2846beda65051
 2007-07-18 17:45:43 -07:00
Gabe Black
05a33a443f Make store microops actually store instead of load. 
--HG--
extra : convert_revision : fe90f8adc96dd0e680cfa45e4c510a906046ae3d
 2007-07-18 17:45:06 -07:00
Gabe Black
e209fce9de Fix a comment to refer to the right type of instruction. 
--HG--
extra : convert_revision : dd441d8fbaed1ed8b2b66e3ad0275009bd4dcef4
 2007-07-18 17:44:12 -07:00
Gabe Black
17f3da6c29 Fix the panic in the "error" format for x86, 
--HG--
extra : convert_revision : bd0715b5b63665f9160082d67c5b5d90d2405c5c
 2007-07-18 17:43:30 -07:00
Gabe Black
6c54b654a8 Implement some forms of add. 
--HG--
extra : convert_revision : adbff2e9b9952ec09853cc43d40243e7262410a7
 2007-07-18 16:33:56 -07:00
Gabe Black
bafb7ee5c1 Fix the operand types in a section of the decoder. 
--HG--
extra : convert_revision : c37600fd65b44817eed2ba653f9d4f08a9869874
 2007-07-18 16:26:52 -07:00
Gabe Black
b949458d4c Make the data size used by regops overridable in the microassembly. 
--HG--
extra : convert_revision : 84d850aa5340c9d02d03502704b063215f6e2140
 2007-07-18 16:26:17 -07:00
Gabe Black
387f00e3dd Fill out the miscreg file and add types to miscregs.hh 
--HG--
extra : convert_revision : 865432256518c4340d9f319bdd9b7d160dc656a0
 2007-07-18 16:12:39 -07:00
Gabe Black
5cca5ca3d9 Hook x86 nop into the decoder. 
--HG--
extra : convert_revision : 26f765ecf74a0bb6a1ec89816f1d630a1a8e4553
 2007-07-18 16:11:52 -07:00
Gabe Black
d21c16fd37 Fix a compilation error for SubBitUnions, 
--HG--
extra : convert_revision : aad9388afe81ba6541d0b18fa9777e6ffcfd871c
 2007-07-18 16:11:16 -07:00
Gabe Black
3bd42af99e Implement the x86 nop to be a "fault" microop which returns "NoFault". 
--HG--
extra : convert_revision : 1b446def756f1d0f80631db944d1cc41be95efbd
 2007-07-18 16:10:44 -07:00
Gabe Black
dffc40ff62 Add a generateDisassembly function to the MicroFault StaticInst. 
--HG--
extra : convert_revision : 73811bf99b26fad413c9b84a54f44e3763ff1835
 2007-07-18 16:09:35 -07:00
Gabe Black
6fbcb225af Make name, isMachineCheckFault, and isAlignmentFault const. 
--HG--
extra : convert_revision : a27e0cbdfcb2a5fdc5979686f887cec7d106542b
 2007-07-18 16:09:00 -07:00
Gabe Black
85f32920fb Calculate the correct address size. 
--HG--
extra : convert_revision : 6bd9d5a01ba6600781e3678e0403dca524fb2cba
 2007-07-17 20:54:55 -07:00
Gabe Black
e524240d68 Make disassembled x86 register indices reflect their size. 
This doesn't handle high byte register accesses. It also highlights the fact that address size isn't actually being calculated, and that the size a microop uses needs to be overridable from the microassembly.

--HG--
extra : convert_revision : d495ac4f5756dc55a5f71953ff6963b3c030e6cb
 2007-07-17 18:12:33 -07:00
Gabe Black
2e80f71dcd Implemented jnz. 
--HG--
extra : convert_revision : ea169ad68acbb3383443586b783b831b3a9eecf9
 2007-07-17 16:55:33 -07:00
Gabe Black
62ffc71fab Use limm to set up immediate value for subtract instruction. 
--HG--
extra : convert_revision : f94e391e36a47c2f5222f30d7e28f48f7875db58
 2007-07-17 16:50:13 -07:00
Gabe Black
d77d4c04b7 Implement the jz instruction. 
--HG--
extra : convert_revision : 7c0bd7ce244f724ac03bbb5fdf770c7a3eba78b4
 2007-07-17 15:36:45 -07:00
Gabe Black
c4004482a5 Make "test" set some condition codes. 
It still needs to zero the overflow and carry flags to be correct.

--HG--
extra : convert_revision : 73cb3a55f7b4234389d9355f5ad45da6aaaa6c60
 2007-07-17 15:35:34 -07:00
Gabe Black
a6757095c3 Add in support for condition code flags. 
Some microops can set the condition codes, and some of them can be predicated on them. Some of the codes aren't implemented because it was unclear from the AMD patent what they actually did. They are used with string instructions, but they use variables IP, DTF, and SSTF which don't appear to be documented.

--HG--
extra : convert_revision : 2236cccd07d0091762b50148975f301bb1d2da3f
 2007-07-17 15:33:18 -07:00
Gabe Black
cf846d5205 Add in operand which holds the condition code bits of the flag register. 
--HG--
extra : convert_revision : 416052f41fccc8286b3bdbe8d559512a761224f2
 2007-07-17 15:28:48 -07:00
Gabe Black
bbf7163dd9 Add symbols for each of the flags a microop could set and each condition it could check. 
--HG--
extra : convert_revision : 1f542b8aadfd5146539cadef631b49d77f578472
 2007-07-17 15:27:28 -07:00
Gabe Black
cbc24d6600 Actually include miscregs.hh 
--HG--
extra : convert_revision : 6ebf906d2211b94f28c173f0d2da91bd446fcb2c
 2007-07-17 13:30:23 -07:00
Gabe Black
b0643a08a3 Create a file to describe misc registers. 
Define bitfields, indices, etc.

--HG--
extra : convert_revision : 8fffdc4cf796d304b12b317d8bddf5685bd50cf4
 2007-07-17 13:29:40 -07:00
Gabe Black
8f3153ffb3 Create a file of functions for computing condition codes. 
These haven't been very thuroughly tested, so use at your own risk.

--HG--
extra : convert_revision : 938885d36fea4a99f8228cdf195a0e0a38dd9031
 2007-07-17 13:28:03 -07:00
Gabe Black
aad11bf879 Add a spot for the condition code portion of the flag register. 
This is stored in the integer register file so that it can be renamed, but it should be a misc reg.

--HG--
extra : convert_revision : eee48f24dd80b145f14427482047c4d8af2521ab
 2007-07-17 13:26:06 -07:00
Gabe Black
13ccac1a3c Add a conversion constructor so a bitunion can be initialized to a value. 
Previously, the bitunion would need to be declared and then assigned to separately.

--HG--
extra : convert_revision : d229bd83bc7baeca2259d4e7b080f359915015f3
 2007-07-17 13:23:42 -07:00
Steve Reinhardt
658eeee507 Handle broken swig version that prints version info on stderr. 
--HG--
extra : convert_revision : 83021779c40972fa56893d21713c6115cd481bc4
 2007-07-14 21:35:26 -04:00
Gabe Black
873b762d4b Move bitunion code into it's own file. 
--HG--
extra : convert_revision : 8d55ca9645ee4e357b7f4595435542eb72490331
 2007-07-14 17:28:26 -07:00
Gabe Black
4f7809d5e6 Pull some hard coded base classes out of the isa description. 
--HG--
rename : src/arch/x86/isa/base.isa => src/arch/x86/isa/outputblock.isa
extra : convert_revision : 7954e7d5eea3b5966c9e273a08bcd169a39f380c
 2007-07-14 17:14:19 -07:00
Steve Reinhardt
e5ecfa2745 Disable PrintThreadInfo since it causes a panic when using VPtr. 
See Flyspray #281.

--HG--
extra : convert_revision : 199ef802bcabed09f6ea6922c3a3954fea161190
 2007-07-14 12:22:04 -07:00
Steve Reinhardt
c2ee69d687 Make NO_FAST_ALLOC compile. 
--HG--
extra : convert_revision : 80579a61eb8d220e75cdee11bc09ca985c8fd85c
 2007-07-14 12:12:46 -07:00
Steve Reinhardt
7cd6c7ee05 Fix & tweak DPRINTFs for tracediff w/new cache code. 
Note that we should *not* print pointer values in DPRINTFs as
these needlessly clutter tracediff output.

--HG--
extra : convert_revision : 25a448f1b3ac8d453a717a104ad6dc0112fb30bb
 2007-07-14 11:48:30 -07:00
Nathan Binkert
92bb9242fb ignore stuff that we don't want to see in the status 
--HG--
extra : convert_revision : c4a4711cf515507d4debcacacef5799adcfe3bef
 2007-07-13 22:39:41 -07:00
Nathan Binkert
2c8b9cbd7f transfer tags 
--HG--
extra : convert_revision : 7e83aabe9926dae16d4732a6260c89b4344919e9
 2007-07-13 22:24:04 -07:00
Korey Sewell
738ecc495b fix store instructions, pass fast/quick Atomic/TimingSimpleCPU regressions... 
src/arch/mips/isa/decoder.isa:
    commment out deret instruction for now...
src/arch/mips/isa/formats/fp.isa:
    edit fp format
src/arch/mips/isa/formats/mem.isa:
    fix for basic store instructions

--HG--
extra : convert_revision : 30cb5a474e78ac9292b6ab37d433db947a177731
 2007-06-29 15:13:50 -04:00
Korey Sewell
e28cbc98a0 o3cpu build for mips 
--HG--
extra : convert_revision : 2c0be7a8c0a54ba5b1b2b69468f788d20abc8452
 2007-06-28 05:30:46 -04:00
Korey Sewell
ac19e0c505 FINISH off merge of mips mt/dsp isa extensions by adding the ControlBitfieldOPerand to ISA Parser. Now, while things do build, we have to fix broken functionality... 
src/arch/isa_parser.py:
    add back deleted writeback in Control Operand

--HG--
extra : convert_revision : dba11af220a1281fa53f79d87e4f8752bdfc56db
 2007-06-22 21:09:35 -04:00
Korey Sewell
c6d137f565 add Control Bitfield class 
--HG--
extra : convert_revision : 31e7243c8820cb9f6744c53c417460dee9adaf44
 2007-06-22 20:09:46 -04:00