Understanding Arithmetic Circuits

Adder

• Binary Adder Architecture Exploration ( pdf )

Adder type	Overview	Analysis	VHDL Level Design	CMOS Level Design
1. Ripple Carry Adder	A		pdf	pdf
2. Carry Lookahead Adder	A		pdf
3. Carry Save Adder	A
4. Carry Select Adder	A
5. Carry Skip Adder	A			pdf
6. Carry Chain Adder	A		pdf, pdf	pdf
7. Kogge-Stone Adder	A		pdf
8. Prefix Adder	A
9.1 Variable Block Adder	A, B, C
9.2 Multi-Level Variable Block Adder	A

Adder Architectures Suitable for FPGA

• FPGA Carry-Chain Adder (pdf)
• FPGA Carry Select Adder (pdf)
• FPGA Variable Block Adder (pdf)
• FPGA Carry Lookahead Adder (pdf)
• Carry-Skip Adder

Barrel Shifter

• Barrel Shifter Architecture Exploration (bshfit.vhdl, bshfit.makefile)

Mux Based Barrel Shifter

• Analysis (pdf)
• Implementation

Multiplier

Array Multipliers

• Analysis (pdf)

Tree Mulltipliers

• Lattice Multiplication (pdf)
• Wallace Tree (pdf)
• Dadda Tree (pdf)

Booth Multipliers

• Booth Encoding Note
• Booth Multiplier Note (H1.pdf)

Divider

• Binary Divider (pdf)
  

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