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-rw-r--r--src/armv8/a64.rs5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index eb709d0..c0d61e6 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -7421,7 +7421,7 @@ impl Decoder<ARMv8> for InstDecoder {
return Err(DecodeError::InvalidOpcode);
}
- if opcode >= 0b001000 && Rn != 0b11111 {
+ if opcode >= 0b100000 {
return Err(DecodeError::InvalidOperand);
}
@@ -7449,6 +7449,9 @@ impl Decoder<ARMv8> for InstDecoder {
if opcode < 0b001000 {
Operand::RegisterOrSP(SizeCode::X, Rn)
} else {
+ if Rn != 0b11111 {
+ return Err(DecodeError::InvalidOpcode);
+ }
Operand::Nothing
},
Operand::Nothing,