9.29.2.1 Macros

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:

llo(exp)
Extracts least significant word from 32-bit expression 'exp'.
lhi(exp)
Extracts most significant word from 32-bit expression 'exp'.
hlo(exp)
Extracts 3rd word from 64-bit expression 'exp'.
hhi(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