diff options
| -rw-r--r-- | src/armv8/a64.rs | 6 | ||||
| -rw-r--r-- | test/armv8/a64.rs | 16 |
2 files changed, 19 insertions, 3 deletions
diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs index abe0cae..b698f6c 100644 --- a/src/armv8/a64.rs +++ b/src/armv8/a64.rs @@ -4138,11 +4138,11 @@ impl Decoder<ARMv8> for InstDecoder { } } } else { - if op3 & 0b000100001 == 0b000000001 && op0 & 0b1011 == 0b0010 { + if op3 & 0b000100001 == 0b000000000 && op0 & 0b1011 == 0b0010 { // `Advanced SIMD extract` let Rd = (word >> 0) & 0b11111; - let Rn = (word >> 6) & 0b11111; - let imm4 = (word >> 11) & 0b111; + let Rn = (word >> 5) & 0b11111; + let imm4 = (word >> 11) & 0b1111; let Rm = (word >> 16) & 0b11111; let op2 = (word >> 22) & 0b11; let Q = (word >> 30) & 1 == 1; diff --git a/test/armv8/a64.rs b/test/armv8/a64.rs index eb88da2..6f43c22 100644 --- a/test/armv8/a64.rs +++ b/test/armv8/a64.rs @@ -4267,3 +4267,19 @@ fn test_fabd_general() { assert!(errs.is_empty()); } + +#[test] +fn test_ext() { + const TESTS: &[([u8; 4], &'static str)] = &[ + ([0xa5, 0x40, 0x05, 0x6e], "ext v5.16b, v5.16b, v5.16b, 0x8"), + ([0xc7, 0x40, 0x06, 0x6e], "ext v7.16b, v6.16b, v6.16b, 0x8"), + ([0xc7, 0x20, 0x06, 0x2e], "ext v7.8b, v6.8b, v6.8b, 0x4"), + ]; + let errs = run_tests(TESTS); + + for err in errs.iter() { + println!("{}", err); + } + + assert!(errs.is_empty()); +} |