PJRC.COM Offline Archive, February 07, 2004
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OSU8 Microprocessor
Schematic
OSU8 Core
8-Bit Data ALU
Misc Logic
Full Adder
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OSU8 Microprocessor
Overview
CPU Programming
Hardware Info
Schematic
Xilinx Implementation
Address Decoder
OSU8 Core
Normal Size
Large Size
8-Bit Data ALU
ALU-8 Main
8-Bit Adder
8-Bit Shifter
8-Bit 3:1 Mux
Function Dec
N & Z Bits
8-Bit AND
8-Bit OR
Zero A
Zero B
Compare A
Compare B
Misc Logic
Full Adder
2:1 Mux
3:1 Mux
4:1 Mux
2:1 Mux
3:1 Mux
16-Bit Addr ALU
Control State Machine
State Register
Bus Control
Accumulator
B Register
Status Bits
Operand Register
Program Counter
Stack Pointer
P1 Pointer
P2 Pointer
16-Bit Equals
Temp Register
8-Bit Zero
Buffers
Full Hierarchy Index
Implementation
Download Files
Single Bit Full Adder
The
8-bit Ripple Adder
uses 8 of these full adder circuits.
OSU8: Simple 8-Bit Microprocessor Design; Paul Stoffregen
http://www.pjrc.com/tech/osu8/sch/my_fadd_ripple8.html
Last updated: November 28, 2003
Status: These pages are a work-in-progress
Comments, Suggestions:
<paul@pjrc.com>
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Complete List of All OSU8 Schematics