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Arithmetic logic unit, Schemes and Mind Maps of Computer science

Computer science

ALU diagram, blocks, working, architecture

Typology: Schemes and Mind Maps

2024/2025

Uploaded on 12/16/2025

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ALU Block-Level Diagram & Bit-Sliced Floorplan (Medium Detail)
Block-Level Diagram
Operands A[15:0] & B[15:0]
Bit-Slice Array (16 slices)
Control signals■sel[1:0], carry in
XOR■FA■Out MUX carry ->
16-bit Output MUX DataOut[15:0]
Zero Detection
Selected Result[15:0] ->
ZeroFlag
pf2

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ALU Block-Level Diagram & Bit-Sliced Floorplan (Medium Detail)

Block-Level Diagram

Operands A[15:0] & B[15:0]

Bit-Slice Array (16 slices)

Control signalsnsel[1:0], carry in

XORnFAnOut MUX carry ->

16-bit Output MUX DataOut[15:0]

Zero Detection

Selected Result[15:0] ->

ZeroFlag

Floorplan - Bit-Sliced B*-Tree (Medium Detail) Core Area

Control & Statusn(Scan, Test, Ctrl)

S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 S

Output MUX Row (aligned with slices) + Zero reduction tree near here

Notes: Each bit-slice contains XOR, Full-Adder (FA) for add/sub, and local multiplexers. Carry routing is shown as a horizontal rail across slices. Place the final 16-bit output MUX aligned with slices to minimize vertical routing. Zero detection is implemented as a small balanced NOR/OR tree near the output MUX.