27. Consider the program below. a. What does the program do? Be concise. b. Are the list items signed or unsigned? How do you know? c. What value is assigned to the symbol LENGTH by the assembler? d. What specific changes would need to be made to the previous program so that it now worked with words rather than longwords? e. How many times does the BEQ.S instruction execute? COUNT LIST1 LIST2 LENGTH START LOOP ELSE DONE ORG DS.W DC.L 1,2,3,4,5,6,7,8,9,0 DC. L 0,9, 8,7,6,5,4,3,2,1 EQU LEA LEA $400 1 CLR.L MOVE. W TST.W BEQ.S CMPM. L BLE.S ADDQ.W SUBQ.W BRA. S MOVE.W END (*-LIST2)/4 LIST1, A1 LIST2, A2 DO #LENGTH, D1 D1 DONE (A1) +, (A2)+ ELSE #1, DO #1,D1 LOOP DO, COUNT START