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A32: Implement Thumb-1's CBZ/CBNZ instructions

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Introduced in ARMv6T2, this allows for short forward branches.
This commit is contained in:
Lioncash
2019-05-03 18:17:08 -04:00
committed by MerryMage
parent bd755ae494
commit 03e6899fd7
4 changed files with 32 additions and 0 deletions
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src/frontend/A32/decoder/thumb16.h
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@@ -116,6 +116,7 @@ std::optional<std::reference_wrapper<const Thumb16Matcher<V>>> DecodeThumb16(u16
// Branch instructions
INST(&V::thumb16_BX, "BX", "010001110mmmm000"), // v4T
INST(&V::thumb16_BLX_reg, "BLX (reg)", "010001111mmmm000"), // v5T
INST(&V::thumb16_CBZ_CBNZ, "CBZ/CBNZ", "1011o0i1iiiiinnn"), // v6T2
INST(&V::thumb16_UDF, "UDF", "11011110--------"),
INST(&V::thumb16_SVC, "SVC", "11011111xxxxxxxx"),
INST(&V::thumb16_B_t1, "B (T1)", "1101ccccvvvvvvvv"),