Commit graph

240 commits

Author SHA1 Message Date
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
Gabe Black
47b0242618 Fixed immediate byte accounting bug.
--HG--
extra : convert_revision : ee5275da14a2923b9a525ae5b5c582c15df4608a
2007-07-22 02:34:52 +00:00
Gabe Black
bff4f765f5 Fixed displacement size bug.
--HG--
extra : convert_revision : c39249ef598c1bd555098d688381dc62541a07c0
2007-07-22 02:23:03 +00:00
Gabe Black
f7ff068b30 Implemented and hooked in xchg, rotate with carry, and ret instructions
--HG--
extra : convert_revision : a8e67b0ab4072308f01e0df7f7ee05b31f605a35
2007-07-21 19:29:39 -07:00
Gabe Black
ee6fbdc28b Implement rotate with carry microops.
--HG--
extra : convert_revision : 1d7ff6611e5b4766a5257c1e73681fabbe5f6d76
2007-07-21 19:27:38 -07:00
Gabe Black
fc1b7d62b7 Fixed the distinction between far and near versions of jmp, call and ret. Implemented some shifts, rotates, and pushes.
--HG--
extra : convert_revision : fcb06189ff213e82da16ac43231feb308cb3a285
2007-07-20 23:16:03 -07:00
Gabe Black
75f6c6a016 Implement UD2 and replace the place holder in the decoder.
--HG--
extra : convert_revision : 16d0d2b2ddad8759698fa4aa668c22063307c72b
2007-07-20 18:27:02 -07:00
Gabe Black
8dd93f32e4 Make the "name" function const.
--HG--
extra : convert_revision : eb71bc3edd92a544a5333786635fce550aaef233
2007-07-20 18:24:46 -07:00
Gabe Black
9093cb79a1 Implement adc and sbb instructions and microops.
--HG--
extra : convert_revision : a2d3068c5b487f4fa7bf5c9cebba7753bc390bfa
2007-07-20 17:17:11 -07:00
Gabe Black
c3669b8925 Implement the rest of the conditional jump instructions and hook them into the decoder.
--HG--
extra : convert_revision : 8d1d6abce29371def560e1c3f31dabb4de01366f
2007-07-20 17:02:39 -07:00
Gabe Black
231cc3effb Make the decoder take advantage of the new "B" operand format which takes a register index from the opcode itself.
--HG--
extra : convert_revision : 35f9be6559ee9833049eda1817982efdde7082be
2007-07-20 16:48:59 -07:00
Gabe Black
1ed6a8ed79 Define and fill out a lot of different instructions and instruction versions. Added two of the shift microops.
--HG--
extra : convert_revision : 0b76953dbb1dc3366242d4d209cccebde86bbe4e
2007-07-20 16:39:07 -07:00
Gabe Black
705a22b999 Hook in newly implemented instructions.
--HG--
extra : convert_revision : 53319d2363211af407dabaa2b63ad8a4df09c369
2007-07-20 15:05:37 -07:00
Gabe Black
dfcb2ffa46 Comment, implement, fix, and trim the move microassembly.
--HG--
extra : convert_revision : aa5ee7270e740bfbe42e70c4dfccc4c91ecacb33
2007-07-20 15:04:41 -07:00
Gabe Black
fcc23891bb Implement jnbe.
--HG--
extra : convert_revision : cdbf1ff5ed3a63787cbd2187a8a3455a41cc5085
2007-07-20 15:03:36 -07:00
Gabe Black
79b3208aa5 Appended _NEAR to the near version of call and return.
--HG--
extra : convert_revision : 70adb38d59ff7b5d103e58a9f0773dfb911fec6d
2007-07-20 15:03:03 -07:00
Gabe Black
f09847c7a6 Make load and store ops use the appropriate sized data access.
--HG--
extra : convert_revision : 6b808586fab10ca433ef04b062bf701b906634b9
2007-07-20 15:02:09 -07:00
Gabe Black
d926de462a Implement the increment and decrement instructions, and the two operand form of signed multiplication.
--HG--
extra : convert_revision : d87df4b1b5470bed1d963dfe8e2ffa1403718342
2007-07-20 14:59:14 -07:00
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
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
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
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
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
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
Gabe Black
70d6044527 Make symbols for regular registers.
--HG--
extra : convert_revision : 28a6df1efe4298877dc2b20179caeb25dfdc4622
2007-06-21 20:35:27 +00:00
Gabe Black
ec24de8b59 Get rid of an unnecessary include file.
--HG--
extra : convert_revision : d8d139180917f54006a5a79df4a0f206ddd39fed
2007-06-21 20:35:26 +00:00
Gabe Black
25e385e0cf Use the new symbols to clean up the assembler.
--HG--
extra : convert_revision : 005464e875ede1e37dfe0e0482c29fd793ca52be
2007-06-21 15:30:05 +00:00
Gabe Black
13bf022053 Needed for last change set to work :P
--HG--
extra : convert_revision : 9e57e582dd1ef2805d5adffcc0ccfd99596d9f54
2007-06-21 15:29:02 +00:00
Gabe Black
ae60d58083 Define symbols for the x86 specialization of the microassembler.
--HG--
extra : convert_revision : 1fd66ba519d211fec18641b6df94b7640c56080c
2007-06-21 15:28:08 +00:00
Gabe Black
0dc15742e3 Fix a comment.
--HG--
extra : convert_revision : 17e67cf6ea17fe6f971ef608547983fbb94adec9
2007-06-21 15:26:38 +00:00
Gabe Black
efce09e958 Add in code that lays the ground work for setting flags.
--HG--
extra : convert_revision : e4fcb64d45804700a0ef34e8acf5615b66e2a527
2007-06-21 13:48:44 +00:00
Gabe Black
77aa98d0f8 Implement rip relative addressing and put in some missing loads and stores.
--HG--
extra : convert_revision : 99053414cef40f13c5226871a72909b2622d8c26
2007-06-20 19:08:04 +00:00
Gabe Black
c4ebfa850e Fix a newly introduced bug where the predecoder wasn't picking up all the displacement.
--HG--
extra : convert_revision : 9202c11ee187458adcd85ba616b7f7f4bdd4eec1
2007-06-20 19:06:08 +00:00
Gabe Black
a19f1c4014 X86 probably doesn't need a window save area.
--HG--
extra : convert_revision : c4a76262d4396f5f5b96b1c9e751014c2abbd78a
2007-06-20 19:05:06 +00:00
Gabe Black
6c4b3db04c Fix a typo in one of the operand type tags.
--HG--
extra : convert_revision : bea87214ba4b40d75a350b803154836ec6d0ae9e
2007-06-20 19:04:41 +00:00
Gabe Black
e6328170e1 Comment out some unnecessary debug output.
--HG--
extra : convert_revision : 9df17841d970a7995d8ed1d51ee66e2c5457e5e3
2007-06-20 19:04:40 +00:00
Gabe Black
a735b7e282 Forgot to check these in...
--HG--
extra : convert_revision : f489fda15740bae0a73bfb012f3bab5790b5c2b5
2007-06-20 19:04:39 +00:00
Gabe Black
a68ddf685c Make memory instructions work better, add more macroop implementations, add an lea microop, move EmulEnv into it's own .cc and .hh.
--HG--
extra : convert_revision : 1212b8463eab1c1dcba7182c487d1e9184cf9bea
2007-06-20 15:02:50 +00:00
Gabe Black
d2ccf5e509 More faithfulness to what instructions should work in what modes, and added the MOVSXD instruction.
--HG--
extra : convert_revision : 38b9bf6cd4bdec6355b1158967c7d3562715cacd
2007-06-19 22:40:10 +00:00
Gabe Black
ea70e6d6da Make branches work by repopulating the predecoder every time through. This is probably fine as far as the predecoder goes, but the simple cpu might want to not refetch something it already has. That reintroduces the self modifying code problem though.
--HG--
extra : convert_revision : 802197e65f8dc1ad657c6b346091e03cb563b0c0
2007-06-19 18:17:34 +00:00
Gabe Black
d496492793 Make instructions that are illegal in 64 bit mode not do the wrong thing in 64 bit mode. Also add in more versions of PUSH and POP, and a version of near CALL.
--HG--
extra : convert_revision : 7d8266cdfa54ac25610466b3533d3e9e5433297b
2007-06-19 17:56:06 +00:00
Gabe Black
ebe4d05f70 Renovate the "fault" microop implementation.
--HG--
extra : convert_revision : dc9d67dd5413f00f16d37cb2d0f8b0d10971e14a
2007-06-19 14:50:35 +00:00
Gabe Black
056cfc345b Get rid of the commented out versions of macroops which have been reimplemented. The comments are basically functioning like a todo list.
--HG--
extra : convert_revision : cb07e3813f6cf882b4a5c77c498ffbca26adf586
2007-06-19 14:26:42 +00:00
Gabe Black
6e286cddfa Get rid of the immediate and displacement components of the EmulEnv struct and use them directly out of the instruction. The extra copies are conceptually realistic but are just innefficient as implemented. Also don't use the zeroeth microcode register for general storage since it's now the zero register, and implement a load and a store microops.
--HG--
extra : convert_revision : 0686296ca8b72940d961ecc6051063bfda1e932d
2007-06-19 14:18:25 +00:00
Gabe Black
8caef7d25a Add a stack size bitfield and expose the mode component of the ExtMachInst.
--HG--
extra : convert_revision : aad0ec51745fb94335898b0565bb11c1b399bbee
2007-06-19 14:15:21 +00:00
Gabe Black
1012fd4427 Add a function to print out segment names.
--HG--
extra : convert_revision : 8cbe3ca0d05165f7da5d6fa38c899ecc9e782511
2007-06-19 14:14:17 +00:00
Gabe Black
4ae284282e Get rid of unnecessary output.
--HG--
extra : convert_revision : 0df9a12788b8ce3225c113c095d5f13e49a7c544
2007-06-18 14:15:47 +00:00
Gabe Black
6c12577937 Add in incomplete pick and merge functions which read and write pieces of registers, and fill out microcode disassembly.
--HG--
extra : convert_revision : 56332b3999a9079b1bd305ee2826abdf593367e1
2007-06-18 14:15:00 +00:00
Gabe Black
3ceb0a46ae Add in some microregs.
--HG--
extra : convert_revision : e8a894c2f7901329bd390a4cfd92209d0e29cf80
2007-06-14 20:52:25 +00:00
Gabe Black
dad3058224 Sign extend byte immediates as well. There might need to be a fancier system in place to handle this in the future.
--HG--
extra : convert_revision : 2c5bd719c770d9a93a57bd29782842f82384863d
2007-06-14 20:52:24 +00:00
Gabe Black
7213944110 Fix limm.
--HG--
extra : convert_revision : ab76b11c2bb2f3abc0e7a84f7167d92d16ed074e
2007-06-14 20:52:23 +00:00
Gabe Black
866cc8214b Implement a handful more instructions and differentiate macroops based on the operand types they expect.
--HG--
extra : convert_revision : f9c8e694a8c0eb33b988657dca03ab495b65bee8
2007-06-14 20:52:22 +00:00
Gabe Black
a8f65b18bc Move the high byte register indices to the right place.
--HG--
extra : convert_revision : 3f04036d598b6572bab6ec06d162b97564a6529c
2007-06-14 20:52:21 +00:00
Gabe Black
752199f827 Make POP special case its dataSize to default to 64 bits in 64 bit mode.
--HG--
extra : convert_revision : 5c6251d962d9997676ffc795bb92eeb588caed39
2007-06-14 13:52:08 +00:00
Gabe Black
cd3fee1b81 Put the mode in the ExtMachInst.
--HG--
extra : convert_revision : 7fc6567ab3d35c06901e6c8a0435f7cab819e17e
2007-06-14 13:50:58 +00:00
Gabe Black
640ab1d2e7 Get rid of an unnecessary debug statement.
--HG--
extra : convert_revision : 0b306dd96f5358474ad6a8bf4a949c12bcd139cd
2007-06-14 13:49:23 +00:00
Gabe Black
20ec77fdc1 Get rid of some debug output and let macroops set headers in their constructor. The intention is to allow them to modify the emulation environment struct before it's used to construct its microops.
--HG--
extra : convert_revision : b04fc9ead8e3322fc3af3f14d75e2206ddfbe561
2007-06-14 13:47:52 +00:00
Gabe Black
cd8f604cc9 Seperate the pc-pc and the pc of the incoming bytes, and get rid of the "moreBytes" which just takes a MachInst.
src/arch/x86/predecoder.cc:
    Seperate the pc-pc and the pc of the incoming bytes, and get rid of the "moreBytes" which just takes a MachInst. Also make the "opSize" field describe the number of bytes and not the log of the number of bytes.

--HG--
extra : convert_revision : 3a5ec7053ec69c5cba738a475d8b7fd9e6e6ccc0
2007-06-13 20:09:03 +00:00
Gabe Black
5fd567425d Fix the operand type tag parser to recognize multi character register names.
--HG--
extra : convert_revision : e025620e29f2515d51240e96c4a05a4f74bdf72e
2007-06-13 18:08:06 +00:00
Gabe Black
715efab3b9 Partially implement "POP"
--HG--
extra : convert_revision : ba454579a6a82ce4924102a633e5758fb2a30b2d
2007-06-13 18:06:34 +00:00
Gabe Black
fd45c4a58f Move load/store microops into their own file. They still don't do anything, though.
--HG--
extra : convert_revision : 251763c614b9056c3ca7a85ef92c416552da893f
2007-06-13 18:05:08 +00:00
Gabe Black
dc13db8578 Fix the immediate version of register operations, and get their name to show up correctly.
--HG--
extra : convert_revision : 9fc36b99c9027e35f22983d5d1e22c940fa093de
2007-06-13 18:01:23 +00:00
Gabe Black
4e7786d971 Minor comment fix up.
--HG--
extra : convert_revision : 20d517c4bc2aae54e53368c708b5abb27ed3a469
2007-06-12 17:35:11 +00:00
Gabe Black
0d8d3f988f Make use of some of the REX prefix.
--HG--
extra : convert_revision : 948eceb59a1cd9b02ad9355dd5894af0bbec4e83
2007-06-12 16:47:10 +00:00
Gabe Black
baf145e0f5 Reset the rex and legacy prefix components of the ExtMachInst as well.
--HG--
extra : convert_revision : 832a324fec2d2b59f1c101d7fa72d7f670f0495d
2007-06-12 16:46:04 +00:00