Suppose the LC-3 datapath allows combining the two registers into one. Using separate registers, the test to see if the Ready bit is set simply involves checking bit 15 of the status register. This is performed using a branch instruction that tests if the value of the register is negative. If the KBSR and DSR are combined, the test to see if the Display device Ready bit is set involves masking out bit 14 and testing if the bit is set or cleared. Doing it this way requires more instructions than the first method

no. when the asker posts the question they can make a question worth what ever they think is a fair price. although it must be within the limit of the points they currently own. 5 is the minimum number of points a question can be worth. if a question is complicated or has lots of parts to it, it is better to make it worth more because more people will be more willing to answer.

hope this !

what is your question exactly? when you let me know i will gladly you. : )

what class is it and how much will you pay?

answer; correction;