If this option is on, IDA will simplify instructions and replace them by clearer pseudo-instructions. For example, mov pc, lr will be replaced by retn If this option is on, IDA will not use =label syntax for pointer references. For example, LDR R1, =dst ... off_0_1003C DCD dst will be replaced by LDR R1, off_0_1003C If this option is on, IDA will use macro-instructions. For example, MOV R7,#2 ADD R7,R7,#3 will be replaced by MOVL R7, #5 Apart from the ADD instruction, SUB, ORR and LSL instructions are supported. Also, MVN Rx, #x will be replaced by MOVL Rx, #~x If this option is on, IDA will use the bit 0 of the value moved to PC as the thumb mode bit. If this option is on, IDA will not switch ARM-THUMB modes automatically.