Michel Heily
74329c2a0b
Never leave unfinished work..
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Former-commit-id: 91acecdaf3ec7f9de892bd9f712e3cf521e08beb
2019-07-05 16:10:21 +03:00
Michel Heily
0c50209735
Fix wrong calculation of conditional branch offset in Thumb mode
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Former-commit-id: 4cc28b13b19b2bf45e2b0e34d9a9dc0f83f82b01
2019-07-05 16:01:16 +03:00
Michel Heily
37117257a6
Impl Thumb 10 (load store halfword)
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Former-commit-id: 0d5e88f200613b6df2b999ecbb855ce480e73322
2019-07-05 15:50:14 +03:00
Michel Heily
d4b6952411
Impl Thumb 19, fix warnings and rustfmt
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Former-commit-id: 8690aa25b1aa343b344776716b6213596bd1459a
2019-07-05 15:34:52 +03:00
Michel Heily
fb0d3acb14
Impl Thumb Format 1 untested
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Former-commit-id: e80617fd415ba951310a42c79b6ca37251d0e250
2019-07-05 14:09:04 +03:00
Michel Heily
058760d7e4
Impl thumb Format4
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Former-commit-id: 7b8705ee7b76bbeb5b2a21e830d16db06ce8d63c
2019-07-05 13:58:26 +03:00
Michel Heily
01290f6a28
Impl Thumb LdrStrSp
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Untested.
Former-commit-id: 8fa842d4969e30247fc1706dfe053c7dfbb37843
2019-07-05 13:20:37 +03:00
Michel Heily
be9499c76d
Move cycle counting to CPU Core
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This isn't accurate, I'm probably missing something but at least it'll
make the instruction implementation more clean for now..
Former-commit-id: de24b15e1a51e1998207e5ea96fc8543f2553a26
2019-07-05 13:08:07 +03:00
Michel Heily
f8ebe26e5e
Implement thumb format 13
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(NOT TESTED)
Former-commit-id: 160ee3a6c09a12cab53f69c94b385ea17666bd5f
2019-07-05 03:46:04 +03:00
Michel Heily
5df9b6f317
Add thumb push-pop.
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Not tested, cycle modeling is crap
Former-commit-id: a5092dab79a1a660fc6c96a71f0908cc2054be27
2019-07-05 03:28:02 +03:00
Michel Heily
702a08e30c
Add many thumb instructions..
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TODO add more tests for all the instructions I've got implemented so
far.
Also, I need to rewrite the whole "sysbus" module again because it's
crap and I keep refactoring it as I go.
I've added the "Dummy" because the bios for some reason tries to memzero
an unmapped region on the work ram (the thumb loop that ends at 0x126)
Former-commit-id: 67befd0935ee10df9ac8ceeaebd14f69767a7f16
2019-07-04 01:56:50 +03:00
Michel Heily
eaf972de93
Implement thumb format 6 (PC-Relative Load) and test it.
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Former-commit-id: ae161edb0c8968913d2ef72a14053c118c6f7692
2019-07-03 02:15:16 +03:00
Michel Heily
b82874809f
Implement thumb format3 instruction and add a test for it.
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Former-commit-id: 8cf6664027dc3d5dbeb6d2ca3d089820baac2709
2019-07-03 01:26:48 +03:00
Michel Heily
4011911cca
Pass around "Bus" instead of "SysBus"
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Former-commit-id: c20dae7dd3ddcb3bd8f671a16fd67a241bd6c459
2019-07-03 01:22:36 +03:00
Michel Heily
6f81c236a6
Mega Commit #2 - Add some thumb decoding and disassembly
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Former-commit-id: e3a89ac681a8d6f6f0bee85b32f64d181e11242f
2019-07-03 00:03:35 +03:00
