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Complete the following program that only adds integers that are even negatives. The program considers the NON - ZERO integers at labels N 1 ,
Complete the following program that only adds integers that are even negatives. The program considers the NONZERO integers at labels N N and N and stores the sum of the appropriate integers in the memory at label SUM. It uses a subroutine at label CHKN to check each integer.
ORIG x
LD R N
Select
L ADD R R #
LD R N
LEA R CHKN
Select
JMP R
L ADD R R R
LD R N
Select
L ADD R R R
ST R SUM
HALT
CHKN ADD R R # ; move in to R for testing
Select
AND R R x ; right most bit is always if odd
Select
WRONG AND R R # ; zero out wrong values
RETURN RET
NFILL ; value not shown
NFILL ; value not shown
NFILL ; value not shown
SUM FILL #
ENDComplete the following program that only adds integers that are even negatives. The program considers the NONZERO integers at labels N N and N and stores the sum of the appropriate integers in the memory at label SUM. It uses a subroutine at label CHKN to check each integer.
ORIG x
LD R N
Select
L ADD R R #
LD R N
LEA R CHKN
Select
JMP R
L ADD R R R
LD R N
Select
L ADD R R R
ST R SUM
HALT
CHKN ADD R R # ; move in to R for testing
Select
AND R R x ; right most bit is always if odd
Select
WRONG AND R R # ; zero out wrong values
RETURN RET
NFILL ; value not shown
NFILL ; value not shown
NFILL ; value not shown
SUM FILL #
END
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Database Design For Mere Mortals
Authors: Michael J Hernandez
4th Edition
978-0136788041
