marcothms
5ee80c9364
fix: read data section as words, not bytes
2025-06-03 10:30:35 +09:00
marcothms
4c63b7a21a
ft: add dump flag
2025-05-28 16:00:18 +09:00
marcothms
7e8fdeba54
ft: implement missing lock instruction
2025-05-28 14:23:56 +09:00
marcothms
a21cc2b4b3
ft: add debug script
2025-05-28 14:13:12 +09:00
marcothms
c396d33f76
fix: align pointer parsing with spec
...
Previously pointer parsing was completely wrong.
Now split into Pointer32 for immediates with
segment;offset and Pointer16 for short jumps, which
use DS or ES as segment and the Pointer16 value
as offset.
2025-05-28 13:31:14 +09:00
marcothms
0893969f4e
chore: whole swoop of enhanced documentation
2025-05-28 09:41:40 +09:00
marcothms
322a276617
fix: dont interpret padding as instructions
...
a.out padds the text section with 0-bytes, which where interpreted
as 0x00 0x00 instruction and occasionally as a single 0x00 byte. Add
logic to ignore single 0x00 bytes and to remove dangling 0x00 0x00
instructions at the end of the instruction vec, so only the 'actual'
instructions are presented in the end. Also adjust visibility of
methods, so only the truncated instructions will ever be presented.
Of course, this could remove an actual `0x00 0x00` instruction from the
end, but they would not have any effect on execution anyway.
2025-05-27 11:13:16 +09:00
marcothms
5c8702fb95
fix: only push raw instruction once
2025-05-27 09:37:57 +09:00
marcothms
3463b5b4ae
chore: fix panic
...
ModRM parsing still used old parsing style.
2025-05-27 09:21:40 +09:00
marcothms
8ea91d80b8
ft: add first basic test
2025-05-25 21:20:12 +09:00
marcothms
35207d23f0
chore: add nice debug output
2025-05-25 21:06:47 +09:00
marcothms
f9ae0dc6ee
chore: move pointer parsing function to disasm module
2025-05-25 20:31:55 +09:00
marcothms
74e936ab76
chore: replace all panic's with proper error propagation
2025-05-25 15:45:09 +09:00
marcothms
73b1a99cbd
ft: Implement memory pointer (Mp) operand
2025-05-25 11:00:47 +09:00
marcothms
6762195378
chore: show raw pointer value in disasm
2025-05-25 10:27:32 +09:00
marcothms
90fb88aec6
chore: fix byte/word size ambiguitis in disasm output
2025-05-25 10:09:23 +09:00
marcothms
058afeb7ba
chore: split up some structs and add comments
2025-05-20 18:59:09 +09:00
marcothms
48eeff16fa
chore: align disasm print more with objdump(1)
2025-05-20 11:28:23 +09:00
marcothms
beccff0d79
chore: update metadata
2025-05-20 11:22:35 +09:00
marcothms
1173dd3d63
chore: output parity for hex
...
Output all immediate bytes and words as hex.
2025-05-20 11:02:46 +09:00
marcothms
ac78e9705c
fix: correctly parse jump bytes
...
Previously only a single byte was read and saved,
but the J-byte means, that the read signed-byte
must be added to the address of the next
instruction.
2025-05-20 10:56:54 +09:00
marcothms
3fe58e8bac
ft: implement fmt::Display for all mnemonics
2025-05-20 10:46:52 +09:00
marcothms
fd15e57569
fix: correctly add displacement for short jumps
2025-05-20 10:12:13 +09:00
marcothms
cb924af0fb
chore: naming parity
2025-05-15 23:15:22 +09:00
marcothms
1c7ddbe9fa
fix: use unsigned Operand type for immediates
2025-05-15 09:28:28 +09:00
marcothms
8ff92c81b3
ft: decode last set of instructions
2025-05-15 08:32:49 +09:00
marcothms
fbec2ddad9
ft: add documentation section to Readme
2025-05-15 01:20:47 +02:00
marcothms
db6d7c30a9
fix: typo in cargo.toml
2025-05-14 20:55:30 +09:00
marcothms
beec1ae161
ft: Add Readme
2025-05-14 13:52:02 +02:00
marcothms
45ab158b95
ft: implement some more instructions
2025-05-14 20:38:51 +09:00
marcothms
22d7c5571f
fix: align disasm output correctly
2025-05-14 20:21:13 +09:00
marcothms
1aa3e2ba84
chore: align disasm output with intel spec
2025-05-14 16:11:11 +09:00
marcothms
227f1bd133
fix: fix displacement parsing
...
1. correctly return when only displacement in modrm mem adressing
Previously the disassmbler wouldn't stop if only a displacement value
should be used without any base or offset index.
2. Displacement can be negative, so use the signed version where applicable
2025-05-14 14:36:21 +09:00
marcothms
c0bb448d79
chore: prettify printing
2025-05-14 13:54:13 +09:00
marcothms
5c13267145
ft: implement Group 1 sign extended instruction
2025-05-14 13:45:20 +09:00
marcothms
1f88db75f5
ft: partially implement Group 5 instructions
2025-05-14 13:41:08 +09:00
marcothms
4fa789e6bb
ft: Implement Group 4 Instructions
2025-05-14 13:35:00 +09:00
marcothms
986c99873d
ft: implement Group 2 instructions
2025-05-14 12:12:57 +09:00
marcothms
4252986b7e
ft: implement CALL and JMP instructions
2025-05-14 11:57:00 +09:00
marcothms
38a2782cc6
ft: implement group3a/b instructions
2025-05-14 11:46:09 +09:00
marcothms
04493b1179
ft: implement more mnemonics
2025-05-14 11:28:07 +09:00
marcothms
b5c178ea61
chore: remove Immediate from Immediate::{Word, Byte, Operand}
...
It's already clear that its an Immediate value
without the prefix.
2025-05-14 10:40:52 +09:00
marcothms
a61b82fe22
ft: implement some more mnemonics
2025-05-14 10:39:07 +09:00
marcothms
f7446c14b1
chore: move register into own module
2025-05-13 16:23:47 +09:00
marcothms
3cb3f8d4b1
chore: Update comments
2025-05-13 14:25:32 +09:00
marcothms
6908fb3c69
chore: use lower letters for disasm output
2025-05-13 14:20:25 +09:00
marcothms
4443f84297
chore: dedup u8/u16 byte/word immediate type
2025-05-13 12:44:00 +09:00
marcothms
27b39ee94a
fix: correctly parse word instead of byte for GPR
2025-05-13 12:35:58 +09:00
marcothms
47a002cd79
chore: add macros for ModRM GPR Instruction parsing
2025-05-13 12:23:33 +09:00
marcothms
c71ddb4419
fix: rename OperandSize to OperandWidth
2025-05-13 12:17:25 +09:00
marcothms