msim Target Use simulator runtime masm-hex Target Mask(ASM_HEX) Force assembly output to always use hex constants mmcu= Target Joined RejectNegative Var(target_cpu) Specify the cpu to build for. If the name begins with 'msp430x' then the 430X instructions are enabled mlarge Target Mask(LARGE) RejectNegative Select large model - 20-bit addresses/pointers msmall Target InverseMask(LARGE) RejectNegative Select small model - 16-bit addresses/pointers (default) mrelax Target Report Optimize opcode sizes at link time mOs Target Undocumented Mask(OPT_SPACE)