Retro computing code for the TRS-80. Mostly z80 assembly language. This is Tim Halloran's code site.
Why bigmit? A homage to Big Five Software.
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z80unit – A programmer-friendly unit testing library for TRS-80 assembly. Supports all z80 TRS-80s and most DOSs.
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Tandy Assembly 2019 VBLANK Modification Exhibit – This directory contains the z80 assembly code for my Tandy Assembly 2019 Raycaster. I exhibited at Tandy Assembly 2019 with George Phillips the Model I no-chip VBLANK Modification. Includes a few pictures of the conference.
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Tandy Assembly 2021 Modern z80 Assembly Programming – This directory contains the example source code from my Tandy Assembly 2021 introduction tutorial to modern TRS-80 z80 assembly programming using George Phillip's toolchain. Includes a few pictures of the conference.
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Tandy Assembly 2022 ChromaTRS, trs80gp RealSerial, and MULTIDOS Use – This directory contains the ChromaTRS demo I did from Tandy Assembly 2023. It includes a new Chroma BASIC program
TA23/BAS
just for the show.