break 7, 1024 # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
break 1024, 1024 # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
wait 1024 # CHECK: :[[@LINE]]:{{[0-9]+}}: error: invalid operand for instruction
+ prefx 33, $8($5) # CHECK: :[[@LINE]]:{{[0-9]+}}: error: immediate operand value out of range