Found an answer to my own problem.
I found that the TI_Asm_Guide.zip 467 KB zip file posted on the
yahoomsp430 group FILE section is the best guide for learning usage
of pure assembly language assembler and linker. The file is posted
there by onestone_apc.
Every new user who does not want to use C compiler must use this
IDE for this is provided under name ADT430 by TI.
This is a very good combination for pure assembly language users who
migrate from other microcontrollers to msp.