diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/core.rs | 5 | ||||
| -rw-r--r-- | src/decode.rs | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/src/core.rs b/src/core.rs index 8f6aaa7..9e82521 100644 --- a/src/core.rs +++ b/src/core.rs @@ -47,6 +47,8 @@ impl Core { } }; + assert_eq!(instr & 3, 3, "Compressed instructions not supported"); + let instr = Instruction(instr); let runner = find_runner(instr); @@ -65,6 +67,9 @@ impl Core { break; } } + } else { + eprintln!("Invalid Instruction"); + break; } } } diff --git a/src/decode.rs b/src/decode.rs index 409aedb..5e19ab9 100644 --- a/src/decode.rs +++ b/src/decode.rs @@ -12,7 +12,7 @@ impl Instruction { /// Returns the opcode of the instruction, with the last 2 bits stripped away, as they are always 0b11 in a non-compressed instruction pub fn opcode_noncompressed(&self) -> u8 { - debug_assert_eq!(self.0 & 0b11, 0b11); + debug_assert_eq!(self.0 & 0b11, 0b11, "Compressed (or invalid) opcode"); (self.0 >> 2 & 0x1f) as u8 } |