Final Exam

Question 1

LD (Load)

Answer 1

16 bit instruction that loads a 4 digit value (Aaaa) in BCD or in Hexadecimal.
Can put V- user memory and K - constant

Question 2

LDD (Load Double)

Answer 2

16 bit instruction that loads a 8 digit value (Aaaa) in BCD or in Hexadecimal.
Can put V- user memory and K - constant.
Takes two V-memory spots

Question 3

OUT (Box instruction)

Answer 3

A 16 bit instruction that copies the value in the lower 16 bits of the accumulator into a specified v- memory location.
V-memory

Question 4

OUTD (Out Double )

Answer 4

a 32 bit instruction that copies 32 bit value or the 8 digit BCD or hexadecimal from the accumulator into two consecutive V-memory location.
ie: V1400 and V1401

Question 5

ADD (Box)

Answer 5

Add is a 16 bit instruction that adds a 16 bit 4 digit BCD value in the accumulator with another 16 bit 4 digit BCD in V-memory.
V memory in add box must be in a V-memory location.
# V-memory #Pointers

Question 6

ADDD (Add Double)

Answer 6

A 32 bit instruction that adds 32 bit 8 digit BCD Value with another one. Goes into two consecutive V-memory locations.
%V-memory,% Pointers,%Constants K

Question 7

SUB

Answer 7

Subtract 16 bit 4 digit BCD value with another one. Can’t use k- constants in box.
%V-memory,%Pointers
Special Relay- SP70 ON anytime the value in accumulator is negative.

Question 8

SUBD

Answer 8

Subtract 32 bit 8 Digit BCD value with another one. Must be outed into two consecutive V-memory location.
%V-memory,%Pointers,% Constants

Question 9

MUL (Multiply)

Answer 9

A 16 bit instruction the multiplies 4 digit BCD values with another one. The result can be up to 8 digits and resides in the accumulator.
%V-memory,%Pointer,%Constants

Question 10

MULD (Multiply Double)

Answer 10

64 bit instruction that can multiply two 32 bit 8 digit BCD value into two consecutive V-memory locations.
%V-memory, %Pointers

Question 11

DIV (Divide)

Answer 11

Divides a 32, 8 digit BCD value by a 16 bit 4 digit value BCD value.
%V-memory, %Pointers, % Constants

Question 12

DIVD (Divide Double)

Answer 12

Divides a 32, 8 digit BCD value by a 32 bit 8 digit value BCD value. Outed into two consecutive V-memory locations.
% V-memory % Pointers

Question 13

AND

Answer 13

16 bit instruction that logically AND’s the binary value in the lower 16 bits of the accumulator.
0101,0011,1001,111
AND with 0000,0000,1111,1111
equals 0000,0000,1001,1111
– Resets specific bits (using 0’s in those places)
%V-memory, %Pointers

Question 14

OR

Answer 14

16 bit instruction that logically OR’s the binary value of the with a specific V-memory location.
Sets specific bits (using 1’s in those places)
0101,0011,1001,1111 or it with
0000,1111,0000,0000 equals
0101,1111,1001,1111
%V-memory, %Pointers

Question 15

XOR (Exclusive OR)

Answer 15

16 bit instruction that performs an exclusive-OR of the binary value of a specific V-memory location.
Selectively inverts bits (using 1’s)
0101,0011,1001,1111 XOR with
1111,1100,0000,0000 equals
1010,1111,1001,1111

Question 16

SHFL (Shift Left)

Answer 16

32 bit instruction that moves bit in the accumulator a specific number of places to the left in BCD. Then the Vacant positions are filled with zeros and shifted bits are lost.
0101,0011,1001,1111 SHFL K1 equals
1010,0111,0011,1110
%V-memory, %Constants (1-32)

Question 17

SHFR (Shift Right)

Answer 17

32 bit instruction that moves bit in the accumulator a specific number of places to the right in BCD. Then the Vacant positions are filled with zeros and shifted bits are lost.
0101,0011,1001,1111 SHFR K1 equals
0010,1001,1100,1111
%V-memory, %Constants (1-32)

Question 18

ROTL (Rotate Left)

Answer 18

32 bit instruction that moves the bits in the accumulator a specific number of places. Bits shifted out to the left end then goes back into the right end
%V-memory and %constants

Question 19

ROTR (Rotate Right)

Answer 19

32 bit instruction that moves the bits in the accumulator a specific number of places. Bits shifted out to the right end then goes back into the left end
%V-memory and %constants