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| author | Mitchell Johnson <ehntoo@ehntoo.org> | 2022-09-04 17:33:39 -0400 |
|---|---|---|
| committer | iximeow <git@iximeow.net> | 2022-09-29 15:50:31 -0700 |
| commit | 189cbcfdad097363e66f41daf4d6a76acbf3661c (patch) | |
| tree | 9bc36b467dad5344b53e4b683d9d57ab81b2850d /tests/armv7/thumb.rs | |
| parent | d9765358159886ce3be0031e409dec9443ea7e17 (diff) | |
Fix 32-bit Thumb unconditional branch decoding
T4 encodings of unconditional branches were not being interpreted correctly
(#6), and 32-bit bl/blx instructions were similarly incorrect. Correct the bits
selected for op1 and op2 and handle the slightly-unusual i1/i2 sign bit xor for
these instructions.
Diffstat (limited to 'tests/armv7/thumb.rs')
| -rw-r--r-- | tests/armv7/thumb.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/armv7/thumb.rs b/tests/armv7/thumb.rs index 9182f6e..be5434f 100644 --- a/tests/armv7/thumb.rs +++ b/tests/armv7/thumb.rs @@ -723,6 +723,19 @@ fn test_decode_bcc_cases() { ); } #[test] +fn test_decode_32b_branch_cases() { + // encoding t4 + test_display( + &[0xf3, 0xf7, 0x7c, 0xbe], + "b.w $-0xc308" + ); + // encoding t4 + test_display( + &[0x0c, 0xf0, 0x84, 0xb9], + "b.w $+0xc308" + ); +} +#[test] fn test_decode_bkpt_cases() { test_display( &[0x00, 0xbe], |