Arithmetic/Logic Unit (ALU)
Purely combinational logic
ALU
n
n
n
Y
A
B
F
carry out C
Y < 0 N
Y = 0 Z
Condition
codes
Result
Operands
F
Y
000 A + B
001 A - B
010 A - 1
011 A and B
100 A or B
101 A * B
.
.
Previous slide
Next slide
Back to first slide
View graphic version