The macro syntax used on the MSP 430 is like that described in the MSP 430 Family Assembler Specification. Normal
as macros should still work.
Additional built-in macros are:
Extracts least significant word from 32-bit expression exp.
Extracts most significant word from 32-bit expression exp.
Extracts 3rd word from 64-bit expression exp.
Extracts 4rd word from 64-bit expression exp.
They normally being used as an immediate source operand.
mov #llo(1), r10 ; == mov #1, r10 mov #lhi(1), r10 ; == mov #0, r10