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960cca163e
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140 Commits

Author SHA1 Message Date
Thomas Harte
960cca163e Make better guess at CALL/JMP size; apply same sizing-logic as offset for disassembly matching. 
13 failures.
 2023-09-28 14:52:42 -04:00
Thomas Harte
249da884a7 Trim trailing space. 2023-09-28 13:59:41 -04:00
Thomas Harte
035a1265f6 Map invalid reg numbers properly for the 8086. 
17 failures.
 2023-09-28 13:11:15 -04:00
Thomas Harte
ff4d79e77e Add test synonym, fix operand size. 
19 failures.
 2023-09-28 09:43:26 -04:00
Thomas Harte
78cb39ad67 Also fix AddrReg. 
24 failures.
 2023-09-27 22:47:14 -04:00
Thomas Harte
9207de4164 Fix RegAddr macro. 
26 failures.
 2023-09-27 22:44:10 -04:00
Thomas Harte
c20e7ed9b6 Fix TEST. 
28 failures.
 2023-09-27 22:30:40 -04:00
Thomas Harte
2d882d2153 Switch shift/roll semantics to reduce extension words and for sanity generally. 
37 failures.
 2023-09-27 16:40:46 -04:00
Thomas Harte
b59eae3676 Adopt normative ESC decoding. 
55 failures.
 2023-09-27 10:32:22 -04:00
Thomas Harte
5368f789f6 Shuffle list slightly. 2023-09-26 17:30:27 -04:00
Thomas Harte
b03b408984 Give the decoder responsibility for sanity-checking repetitions. 
This may avoid some spurious extension words.
 2023-09-26 17:29:20 -04:00
Thomas Harte
cd072e1b57 LEA implies a word. Otherwise add TODOs. 
So that's now 69 failures.
 2023-09-26 15:41:51 -04:00
Thomas Harte
f16ac603f2 Deal with printing segment:offset. 
70 failing files remaining.
 2023-09-26 15:28:51 -04:00
Thomas Harte
0a0051eb59 I've just been inconsistent with POP. Stop being so. 
71 failures from 288 tests.
 2023-09-26 15:16:41 -04:00
Thomas Harte
92c8e1ca93 Add missing #include. 2023-09-26 14:52:08 -04:00
Thomas Harte
87097c44b9 Curate list of known failures; apply easiest fixes. 
Now at 157 failures of 288 applicable tests.
 2023-09-25 11:39:12 -04:00
Thomas Harte
7fadf01e4e BP in isolation acts as a base. 2023-09-24 18:06:53 -04:00
Thomas Harte
d2b9c435e5 Allow for non-sign-extended offsets/displacements. 2023-09-24 15:00:16 -04:00
Thomas Harte
5fd98e9833 Add an ignore list. 
Leaves 180 failures amongst the valid 306 instructions.
 2023-09-22 22:56:33 -04:00
Thomas Harte
787e9e770e Retain baseless addresses correctly. 2023-09-22 17:27:27 -04:00
Thomas Harte
c8c0c3ca6d Default segment is ::DS if there was no base. 2023-09-22 17:03:40 -04:00
Thomas Harte
5a5f71e703 JMPs imply their size. 2023-09-22 17:00:10 -04:00
Thomas Harte
587ec81900 Improve string output, better to find actual errors. 
Still at 194/324 failures, but a lot of them seem reasonable.
 2023-09-22 11:24:33 -04:00
Thomas Harte
9f63db991c Capture default segments, fix base/index confusion. 2023-09-22 11:07:09 -04:00
Thomas Harte
7ebecd2f41 Add notes to self, finally figuring out segment issue. 2023-09-19 23:27:42 -04:00
Thomas Harte
6f5fcf23dc Add missing substitutions. 2023-09-19 14:00:27 -04:00
Thomas Harte
02fcaf0dbd JCXZ seems to be preferred over JPCX. 2023-09-19 13:56:48 -04:00
Thomas Harte
a7cf7d3183 Resolve LOOPNE, LOOPE, etc. 2023-09-19 13:55:19 -04:00
Thomas Harte
9b3199d97b Reduce failures to 205/324. 2023-09-19 13:45:19 -04:00
Thomas Harte
e5dfc882cb Agree that JZ/JNZ are clearer (for me) of the synonyms. 2023-09-19 13:38:08 -04:00
Thomas Harte
3582d2c9e3 Start to beef up operand count list. 2023-09-18 16:34:52 -04:00
Thomas Harte
da953fdf0d Complete 8086 operation list; standardise enum order. 2023-09-18 16:25:04 -04:00
Thomas Harte
710017ada2 Largely resolve the operation-name problem. 2023-09-18 15:57:26 -04:00
Thomas Harte
f8dc5b8ebc Attempt to get close on index + base addresses. 2023-09-17 17:05:19 -04:00
Thomas Harte
f039d44ee3 Fully handle rm = 6, mod = 0. 2023-09-15 22:08:20 -04:00
Thomas Harte
7ee5adc481 Forcing a displacement upon BP reduces to 29 failures. 
(At the current limited fidelity of testing)
 2023-09-15 16:09:04 -04:00
Thomas Harte
3e09afbb59
Remove errant square bracket. 2023-06-21 11:57:09 -04:00
Thomas Harte
8578dfbf22 Eliminate various other errant spaces. 2023-05-16 16:40:09 -04:00
Thomas Harte
28c79b2885 Eliminate redundant [space][tab] pairs. 2023-05-12 14:14:45 -04:00
Thomas Harte
2b56b7be0d Simplify namespace syntax. 2023-05-10 16:02:18 -05:00
Thomas Harte
5e355383df Correct SIB test. 2022-04-27 19:53:15 -04:00
Thomas Harte
1725894fe9 Eliminate redundant CMPSD, CDQ, CWDE. 
Also removes IBTS for now, as I'm unclear where it should sit in the opcode map.
 2022-03-12 12:24:44 -05:00
Thomas Harte
fd4f85eb19 Add SMSW. 2022-03-12 12:23:48 -05:00
Thomas Harte
f1c4864016 Eliminate INSD. 2022-03-12 11:37:21 -05:00
Thomas Harte
e6bd265729 Explain which BOUNDs operand is which. 2022-03-11 20:34:28 -05:00
Thomas Harte
c22e8112e7 Expand exposition. 2022-03-11 20:30:56 -05:00
Thomas Harte
44252984c2 Eliminate INT3 special case. 2022-03-11 14:03:46 -05:00
Thomas Harte
4b4f92780e Shuffle extension word order. 
The primary objective here is simplifying index calculation, but as per the note it does also potentially open up options with regard to packing in the future.
 2022-03-11 13:24:45 -05:00
Thomas Harte
f694620087 Resolve TODO. 2022-03-11 13:10:44 -05:00
Thomas Harte
9b4048ec6e The address size modifier doesn't seem to affect far address sizes. 
It's meant to affect only instructions with operands that reside in memory, I think. So probably only ::DirectAddress in my nomenclature. More research to do.
 2022-03-11 12:46:07 -05:00