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alarmclock

12hr/24hr alarm clock with display dimming showcasing Mercury+Baseboard hardware (http://www.micro-nova.com/)

am9511

Spin object to drive Am9511 vintage floating point co-processor, plus test / demo / sample object

hashset_vs_switch

hex_io

Memory import/export using Intel HEX format without embedded processor

microcodecompiler

https://hackaday.io/project/172073-microcoding-for-fpgas

opencores-am9080

Imported from opencores.org

opencores-muldiv

Imported from opencores.org

sys0800

VHDL implementation of vintage TMS0800 calculator chip

sys9080

Simple system built around VHDL implementation of Am9080 8-bit CPU based on 29XX bit-slice series of devices, as described here: https://en.wikichip.org/w/images/7/76/An_Emulation_of_the_Am9080A.pdf

sys_180x

Simple computer using CDP1802 compatible core written using the "mcc" Micro-code compiler (also on my github)

sys_cas

FPGA-based casette interface

sys_dbg8085

Custom machine cycle tracing of 8085-based SBC (single board computer)

sys_emz1001

FPGA recreation of Iskra EMZ1001 4-bit microcontroller

sys_primegen

Signed / unsigned multiplier / divider used by a microcode-driven prime number generator

sys_sbc8085

Various experiments with MiniMax 8085 single board computer

sys_sbc8816

Switch based computer

sys_sifp

Simple computer to illustrate "Single Instruction Format Processor"

sys_tim-011

Various circuits to support the TIM-011 recreation project

sys_tm1638

Driver component for MT1638 based boards (LEDs + keys)

tinycomputer

Tiny 4-bit CPU using AMD2901 bit slice (https://github.com/Amrnasr/AM2901) and program memory initialized from a file

tms9918a-spindemo

Spin object to drive TMS9918A (or compatible, such as F18A) Video Display Processor (also here: http://obex.parallax.com/object/864 )