T0b1/fadec
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
357 Commits 1 Branch 0 Tags
master
Commit Graph

357 Commits

This Branch
This Branch
All Branches
Author SHA1 Message Date
Alexis Engelke
01e1587c5c decode: Move prefix before other opcode extensions 2020-11-09 09:47:36 +01:00
Alexis Engelke
2e7e396325 decode: Remove TABLE_PREFIX_REP and use NFx prefix 2020-11-09 09:47:36 +01:00
Alexis Engelke
69ce124354 encode: Add library for x86-64 encoding 2020-11-09 09:46:38 +01:00
Alexis Engelke
4e95c8d152 instrs: Several operand size and AVX-related fixes 2020-07-05 14:59:24 +02:00
Alexis Engelke
9d7aeb2b61 instrs: Replace LIG attribute with LIG specifier 2020-07-05 14:57:22 +02:00
Alexis Engelke
468eeaa249 parseinstrs: Create a separate class for parsed opcode 2020-07-05 14:57:22 +02:00
Alexis Engelke
9b6caeb2ae parseinstrs: Write mnemonics to separate file 2020-07-04 14:35:51 +02:00
Alexis Engelke
dc668691d8 instrs: Specify segment register size 2020-07-04 14:25:22 +02:00
Alexis Engelke
0da46cba98 instrs: Add missing VEXLIG for compares 2020-07-04 14:25:20 +02:00
Alexis Engelke
c9333ac2c9 instrs: Enforce memory for VSIB encodings 2020-07-04 14:24:59 +02:00
Alexis Engelke
141680e77c instrs: Remove MUSTMEM, encode in operands 2020-07-04 14:24:56 +02:00
Alexis Engelke
da4ad137d8 instrs: Remove redundant IMM_8 2020-07-04 08:55:51 +02:00
Alexis Engelke
854082a156 instrs: Remove invalid SIZE_8 markers 2020-07-02 08:39:51 +02:00
Alexis Engelke
7ee9320840 decode: Add second fixed operand size 2020-06-30 22:07:18 +02:00
Alexis Engelke
08490d4503 parseinstrs: Simplify opkind lookup 2020-06-30 21:02:31 +02:00
Alexis Engelke
e7b5982ba9 tests/decode: Add CRC32 and MOVBE test cases 2020-06-27 19:01:26 +02:00
Alexis Engelke
ab27ea6338 tests/decode: Print architecture mode on failure 2020-06-27 19:01:26 +02:00
Alexis Engelke
ceea786c7f tests/decode: Rewrite in C, speed-up is >100x 2020-06-27 19:01:26 +02:00
Alexis Engelke
9556d34a8a fadec: Deprecate address parameter of fd_decode 2020-06-27 19:01:26 +02:00
Alexis Engelke
7333453a19 instrs: Update several operand types and sizes 2020-06-27 19:01:26 +02:00
Alexis Engelke
3221a319d3 instrs: Don't use O-encoding hack for FSTSW 2020-06-27 17:33:58 +02:00
Alexis Engelke
1b5461036e decode: Don't walk escape opcodes in tables 2020-06-27 17:33:58 +02:00
Alexis Engelke
3ad518e22e decode: Store op types early and compact encoding 
* The encoding of operand types in the decode table now only requires 9
  bits instead of the previous 16 bits.
* Operand types are decoded before the operands itself are stored. This
  allows to ignore REX.RB prefixed for specific register types.
 2020-06-27 17:33:58 +02:00
Alexis Engelke
5e1bb1871f decode: Check CR/DR/SEG reg count in ModRM decoder 2020-06-27 17:33:58 +02:00
Alexis Engelke
618d90ed42 instrs: Encode memory size for FPU instructions 2020-06-27 17:33:58 +02:00
Alexis Engelke
bacfecfead fadec: Allow 64-bit decoding on 32-bit platforms 2020-06-27 17:33:58 +02:00
Alexis Engelke
8445060ad9 fadec: Make memory displacement 64-bit large 
While for almost all instructions the memory address displacement is
sign-extended 32-bits (like for immediate operands), there is a single
case where this is not true: the FD/TD mov encoding allows for a 64-bit
memory address to be specified.
 2020-06-25 21:04:10 +02:00
Alexis Engelke
55197817a7 decode: Remove several unneeded #ifdef's 
In many cases, the compiler is able to figure out itself whether support
for one decoding mode is disabled.
 2020-06-25 21:04:10 +02:00
Alexis Engelke
348d1aec4b decode: Minor refactoring for better performance 
This improves decoding performance by ~4%.
 2020-06-25 21:04:10 +02:00
Alexis Engelke
bb4b195dbe instrs/sse,avx: Fix several operand sizes 2020-06-25 21:04:10 +02:00
Alexis Engelke
807d8a817b decode: Change imm_control to get rid of imm_byte 2020-06-19 14:04:17 +02:00
Alexis Engelke
ab5e0c67c1 decode: Don't fall back to memory encoding with 72-table 2020-06-19 14:04:17 +02:00
Alexis Engelke
f978785df3 parseinstrs: Make TrieEntry always hashable 2020-06-17 18:36:18 +02:00
Alexis Engelke
93a61a0ff1 parseinstrs: Remove mnemonic from instr bitstruct 2020-06-17 17:16:53 +02:00
Alexis Engelke
38f52c98b5 parseinstrs: Store mnemonic enum entry in trie 2020-06-17 17:08:23 +02:00
Alexis Engelke
af5b36a58e parseinstrs: Don't needlessly convert to bytes 2020-06-17 16:49:27 +02:00
Alexis Engelke
f4b41a7e80 decode: Use uint16_t for trie 2020-06-17 16:44:22 +02:00
Alexis Engelke
1fedc069b6 parseinstrs: Propagate unpacked data for trie 2020-06-17 16:34:27 +02:00
Alexis Engelke
545ec30ad0 decode: Return partial error on incomplete opcode 2020-06-14 14:01:39 +02:00
Alexis Engelke
8716bd1991 format: Handle offset operands properly 2020-06-14 14:01:14 +02:00
Alexis Engelke
9454f5f746 travis: Remove Travis CI 2020-06-14 13:45:03 +02:00
aengelke
d18b6bb3cf ci: Add CI via GitHub Actions 2020-06-14 13:43:26 +02:00
Alexis Engelke
80ec7ed960 instrs: Fix decoding of XCHG r8, rax 
Opcode 90 is only a NOP if there is no REX.B.
 2020-06-14 13:36:11 +02:00
Alexis Engelke
c3df15e19b api: Store index register in operand struct 
Combined with some reordering of the struct fields, this reduces the
size of an FdInstr from 56 bytes to 48 bytes.
 2020-06-14 13:36:01 +02:00
Alexis Engelke
7a364fcada api: Drop unused internal FD_FLAG_REX 2020-05-17 11:14:52 +02:00
Alexis Engelke
da4cbc237f parseinstr: Use typing.NamedTuple 2020-05-10 14:20:34 +02:00
Alexis Engelke
afc574503f Decode jump targets as offset if address is NULL 
Addresses relative to the actual address of the instruction are decoded
as new offset operand, where the RIP has to be added to obtain the real
value. For backwards compatibility, the new behavior is only exposed if
the address of the instruction is specified as zero.
 2020-03-07 14:30:07 +01:00
Alexis Engelke
dc286b14f2 Unify instruction mnemonics [API break] 
It is a longer standing issue that some instructions like ADD, IMUL, and
SHL have multiple mnemonics for different encoding forms. This is a
relict from a time where such information was not stored in the
instruction decoding. This, however, is no longer the case and therefore
the extra mnemonics just increase the number of cases to be handled by
users.
 2020-02-20 10:56:17 +01:00
Alexis Engelke
513a913feb decode: Store CL as register operand for shifts 2020-02-19 16:53:59 +01:00
Alexis Engelke
e65086c76c parseinstr: Separate fields for operand properties 2020-02-16 18:12:07 +01:00