Download Website

You are here: OSU8 Microprocessor

N & Z Bits

OSU8 Microprocessor

CPU Programming

Hardware Info

Schematic

Xilinx Implementation

Address Decoder

OSU8 Core

8-Bit Data ALU

N & Z Bits

16-Bit Addr ALU

Control State Machine

Status Bits

Operand Register

Program Counter

Stack Pointer

Full Hierarchy Index

Implementation

N & Z Status Bits Output

This circuit creates the N (negative) and Z (zero) output bits from the ALU, which just reflect if the output is negative and/or zero.

Schematic Drawing

OSU8: Simple 8-Bit Microprocessor Design; Paul Stoffregen
http://www.pjrc.com/tech/osu8/sch/alu_np.html
Last updated: February 24, 2005
Status: These pages are a work-in-progress
Comments, Suggestions: <paul@pjrc.com>