4-1. The logic rung of Figure 10-2 is an example of a: 4-1 a) data compare instr

Question

4-1. The logic rung of Figure 10-2 is an example of a:                      4-1

a) data compare instruction.

b) data move instruction.

c) timer instruction.

d) counter instruction.

4-2. The logic rung is telling the processor to copy the                     4-2.

data stored in word:

a) N7:30 to word N7:20 when input A is true.

b) N7:20 to word N7:30 when input A is true.

c) N7:30 to word N7:20 when input A is false.

d) N7:20 to word N7:30 when input A is false.

4-3. If input A is closed and than opened:                                         4-3.

a) 15 will be stored in N7:20 and 0 in N7:30

b) 0 will be stored in N7:20 and 15 in N7:30

c) 15 will be stored in N7:20 and 15 in N7:30

d) 0 will be stored in N7:20 and 0 in N7:30

Figure 10-2 Logic rung for question 4.

5. The masked move instruction (MVM) instruction:                           5.

a) is an output instruction.

b) moves data through a mask to get to their destination.

c) hides a portion of a binary word before transferring it to its destination.

d) all of these.

Explanation / Answer

4-1. The logic rung of Figure 10-2 is an example of a:   

data move instruction.

4-2. The logic rung is telling the processor to copy the data stored in word:

N7:30 to word N7:20 when input A is true.

4-3. If input A is closed and than opened:

15 will be stored in N7:20 and 15 in N7:30

5. The masked move instruction (MVM) instruction:

all of these.

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