PUSH #4and PUSH #8 need longer encodings on the MSP430. This option is enabled by default, and cannot be disabled.
SPto an odd value.
PCin the same instruction.
BIC #8, SR,
BIS #8, SRor
MOV.W <>, SR) must be followed by a NOP instruction in order to ensure the correct processing of interrupts. By default it is up to the programmer to supply these NOP instructions, but this command line option enables the automatic insertion by the assembler, if they are missing.
Note that this option can be stacked with the
option so that the assembler will both warn about missing NOP instructions and then insert them automatically.