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==== Table of Contents ====

[[#michael_kamprath_s_retro_computer_projects|Michael Kamprath's Retro Computer Projects]]

[[#bit_putey-1_breadboard_computer|8-bit PUTEY-1 Breadboard Computer]]

[[#home_built_retro_systems|Home Built Retro Systems]]

[[#tms_9995_system|TMS 9995 System]]

[[#tms_9900_system|TMS 9900 System]]

[[#tms_99110_system|TMS 99110 System]]

[[#rc2014|RC2014]]

[[#smbaker_z80_computer|SMBaker Z80 Computer]]

[[#xi_8088|Xi 8088]]

[[#gigatron|Gigatron]]

[[#section|]]

====== Michael Kamprath's Retro Computer Projects ======

====== 8-bit PUTEY-1 Breadboard Computer ======

I've built a 8-bit breadboard computer using TTL chips based on [[https://eater.net/8bit|Ben Eater's excellent video series]]. However, I have extended this design in serval ways. I have made some videos that describe the improvements I have made to the original design:

[[https://youtu.be/pwLErAYZvzI|Additional control lines]]

[[https://youtu.be/Ps2bChnnHDg|Increment registers]]

[[https://youtu.be/DLajNGYMC2o|64K RAM and ROM Memory Module]]

[[https://youtu.be/Oe24BykYX04|Full 8-bit Instruction Register and Control Logic]]

[[https://youtu.be/sUqvItfVIRc|Stack Pointer]]

[[https://youtu.be/l4i19C4Lpbo|LCD Display]]

[[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=929d6b&media=https://retrobrewcomputers.org//lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/kamprath/eater-sap1-kamprath.jpeg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=400&h=400&tok=babc9a&media=https%3A%2F%2Fretrobrewcomputers.org%2F%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fkamprath%2Feater-sap1-kamprath.jpeg?400x400|SAP-1 Breadboard Computer}}]]

====== Home Built Retro Systems ======

===== TMS 9995 System =====

[[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=4c6634&media=https://retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/kamprath/tms9995_system.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=400&h=400&tok=6af3ff&media=https%3A%2F%2Fretrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fkamprath%2Ftms9995_system.jpg?400x400|TMS 9995 System}}]]

This system is based on the Texas Instruments TMS 9995 16-bit microprocessor. The system was designed by Stuart Conner, and has ROMs for either BASIC or Forth programming.

//**Links**//

[[http://www.stuartconner.me.uk/tms9995_breadboard/tms9995_breadboard.htm|TMS 9995 Breadboard/PCB System]]

[[http://www.cpu-world.com/CPUs/TMS9995/index.html|Texas Instruments TMS 9995 Microprocessor]]

===== TMS 9900 System =====

[[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=dda9bb&media=https://retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/kamprath/tms9900_system.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=514&h=400&tok=d4055a&media=https%3A%2F%2Fretrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fkamprath%2Ftms9900_system.jpg?514x400|TMS 9900 System}}]]

This system is based on the Texas Instruments TMS 9900 16-bit microprocessor. The system was designed by Stuart Conner, and has ROMs for BASIC programming. It also has the battery-backed RAM, allowing you to persist your BASIC programs, and a TMS 9901 systems interface.

//**Links**//

[[http://www.stuartconner.me.uk/tms9900_breadboard/tms9900_breadboard.htm|TMS 9900 Breadboard/PCB System]]

[[https://en.wikipedia.org/wiki/Texas_Instruments_TMS9900|Texas Instruments TMS 9900 Microprocessor]]

[[http://www.bitsavers.org/components/ti/TMS9900/TMS_9901_Programmable_Systems_Interface_Jul78.pdf|Texas Instruments TMS 9901 Systems Interface]]

===== TMS 99110 System =====

[[https://retrobrewcomputers.org/lib/exe/fetch.php?tok=e75699&media=https://retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/kamprath/tms99110_system.jpg|{{https://www.retrobrewcomputers.org/lib/exe/fetch.php?w=454&h=400&tok=6a854e&media=https%3A%2F%2Fretrobrewcomputers.org%2Flib%2Fplugins%2Fckgedit%2Ffckeditor%2Fuserfiles%2Fimage%2Fbuilderpages%2Fkamprath%2Ftms99110_system.jpg?454x400|TMS 99110 System}}]]

This system is based on the Texas Instruments TMS 99110 16-bit microprocessor, and can run just as well with the TMS 99105 processor. The system was designed by Stuart Conner, and has ROMs for BASIC and Forth programming.

//**Links**//

[[http://www.stuartconner.me.uk/tms99110_breadboard/tms99110_breadboard.htm|TMS 99110 Breadboard/PCB System]]

[[http://www.cpu-world.com/CPUs/TMS99110/index.html|Texas Instrument TMS 99110 Microprocessor]]

===== RC2014 =====

===== SMBaker Z80 Computer =====

===== Xi 8088 =====

===== Gigatron =====