Entity arith_div

Block Diagram of arith_div

Implementation of a Non-Performing restoring divider with a configurable radix. The multi-cycle division is controlled by 'start' / 'rdy'. A new division is started by asserting 'start'. The result Q = A/D is available when 'rdy' returns to '1'. A division by zero is identified by output Z. The Q and R outputs are undefined in this case.

Generics

Name	Type	Default	Description
A_BITS	positive		Dividend Width
D_BITS	positive		Divisor Width
RAPOW	positive	1	Power of Compute Radix (2**RAPOW)
PIPELINED	boolean	false	Computation Pipeline

Ports

Name	Type	Direction	Description
clk	std_logic	in	Global Reset/Clock
rst	std_logic	in
start	std_logic	in	Ready / Start
ready	std_logic	out
A	std_logic_vector	in	Arguments / Result (2's complement) Dividend
D	std_logic_vector	in	Divisor
Q	std_logic_vector	out	Quotient
R	std_logic_vector	out	Remainder
Z	std_logic	out	Division by Zero

• Architecture rtl of arith_div
  • Functions

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