Using a one-bit serial arithmetic logic unit ( ALU ) implementation, allowed the PDP-8 / S to be smaller, less expensive and slower than the original PDP-8.
32.
The Ebox therefore has four 64-bit adders, four logic units, two barrel shifters, byte-manipulation logic, two sets of conditional branch logic equally divided between U1 and U0.
33.
For execution, the FXU contains the POWER1's fixed-point register file, an arithmetic logic unit ( ALU ) for general instructions, and a dedicated fixed-point multiply and divide unit.
34.
The Arithmetic and Logic Unit is responsible for performing boolean operations ( and, or, not, nand, nor, xor, xnor ) and also for performing integer addition and subtraction.
35.
The 7400 series contains hundreds of devices that provide everything from basic logic gates, flip-flops, and counters, to special purpose bus transceivers and arithmetic logic units ( ALU ).
36.
Each functional unit is not a separate CPU core but an execution resource within a single CPU such as an arithmetic logic unit, a bit shifter, or a multiplier.
37.
For example, a divide-by-zero exception will be thrown if the processor's arithmetic logic unit is commanded to divide a number by zero as this instruction is in error and impossible.
38.
Parts of the machine were up and running quickly, with the math and logic units ( the arithmetic logic unit in modern terminology ) running by the autumn of 1950.
39.
The x704 was a superscalar microprocessor that issued up to three instructions per cycle to an arithmetic logic unit ( ALU ), floating-point unit ( FPU ) and branch unit.
40.
Parts of the machine were up and running quickly, with the math and logic units ( the arithmetic logic unit in modern terminology ) running by the autumn of 1950.
