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10,379 Commits 9 Branches 118 Tags 496 MiB
787e9e770e
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121 Commits

Author SHA1 Message Date
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
Thomas Harte
c744a97e3c Ensure no extensions for default constructed Instruction. 2022-03-11 11:55:26 -05:00
Thomas Harte
91d75d7704 Switch strategy on 8086 instruction lengths. 2022-03-11 09:48:26 -05:00
Thomas Harte
dc8cff364f Switch to common test. 2022-03-11 09:48:02 -05:00
Thomas Harte
572dc40e6b Allow assignments. 2022-03-11 09:47:23 -05:00
Thomas Harte
f92ffddb82 Add instruction length limits. 2022-03-10 20:47:56 -05:00
Thomas Harte
641e0c1afc Resolve default segment question. 2022-03-10 20:27:35 -05:00
Thomas Harte
bf7faa80c1 Add TODO. 2022-03-10 16:47:54 -05:00
Thomas Harte
a2ae3771eb Add test for switch to Source::IndirectNoBase. 2022-03-10 15:45:56 -05:00
Thomas Harte
673ffc50da Switch to intended compact version of Instruction. 2022-03-10 15:14:50 -05:00
Thomas Harte
6dc9973754 Incorporate length into Instruction. 2022-03-10 07:12:12 -05:00
Thomas Harte
cf6a910630 Handle no-base case directly in existing switch. 2022-03-09 20:20:32 -05:00
Thomas Harte
520baa6ec8 Formalise IndirectNoBase and permit a knowledgable caller to avoid conditionals. 2022-03-09 20:19:40 -05:00
Thomas Harte
bbf925a27e Clarify, unify and correct decoding and encoding of [CALL/RET/JMP][near/far/relative/absolute]. 2022-03-09 16:48:06 -05:00
Thomas Harte
381fd5dbe4 E8 is a relative call. 2022-03-09 16:37:07 -05:00
Thomas Harte
ead8b7437e Remove done TODO. 2022-03-09 15:26:20 -05:00
Thomas Harte
acd9df6745 Fix segment/offset sizes for far calls. 2022-03-09 15:23:43 -05:00
Thomas Harte
f96c051932 Record PUSH immediate operation size. 2022-03-09 14:24:57 -05:00
Thomas Harte
67b2e40fae Fixed: INs and OUTs remain single byte. 2022-03-09 10:51:16 -05:00
Thomas Harte
081a2acd61 Fix shift group operand size. 2022-03-09 09:33:25 -05:00