SEBHC.ORG

Society of Eight-Bit Heathkit Computerists

A web site dedicated to preserving the Heathkit 8 bit computers

DOCUMENTATION HOME
New REMarks newsletters, Edited by Glenn Roberts
REMarks

PDF files by David Troendle for Heathkit hardware and software
BitBucket link BitBucket
Full Repository download here HeathkitDocs.zip (320mb)

H-8
H-9
H-19
H-89/Z-90
H/Z-100
ANAPRO
ATG SYSTEMS
Corvus Systems
DG Electronics
Magnolia Microsystems
SoftStuff
TMSI
MISC
GAMES

Update March 4, 2012
REMark Magazine Scans at Richard Pestingers website

Update March 17, 2013
Heathkit Source Code Listings

Heathkit Adapter Cables 597-1836-01 (PDF 103KB)
(WH9-1, WH8-51, WH11-51, WH8-41)

EEPROM pinouts (PDF 26KB)
(6116 2Kx8, 6264 8Kx8, 62256 32Kx8 RAM)
(27C16 2Kx8, 27C32 4Kx8, 27C64 8Kx8, 27C128 16Kx8, 27C256 32Kx8, 27C512 64Kx8, 27C0x0 EEPROM)

Update August 23, 2014
Added Floppy and Hard Drive Listing (Floppy_ZDS_GC57.pdf)

Heathkit H-8

H8 Computer (Assembly, Operation, Schematics)

H8-2 Parallel Interface (Assembly, Operation, Illustration, Schematic)

HA8-3 Color Graphics Card (PDF, 10mb)
TMS9918 graphics chip, AY3-8910 sound chip

H8-4 Multi Port Serial (Assembly, Operation, Illustration, Schematic)

H8-5 Cassette/Serial Interface (Assembly, Operation, Illustration, Schematic)

HA8-6 Z80 CPU (Operation, Schematic)

H8-7 Breadboard (Assembly, Operation, Illustration, Schematic)

HA8-8 Extended Configuration (Assembly, Operation, Schematic)

H-17 Disk Controller (Operation, Schematic)

H-37 Double Density Controller (Operation, Schematic)

H-47 Interface and Serial I/O (Operation)

H-67 HDOS Software Installation
Part 1 (PDF)
Part 2 (PDF)

WH8-64 64K Operation/Service Manual (zip, 5mb)
H8-64 64K Dynamic RAM (Schematic)

PAM37 ROM Listing (444-140) (zip 40mb)

Heathkit H-9

H-9 Terminal (Operation 595-2017-03)

H-9 Terminal (Assembly 595-1996-05)

Heathkit H-19

H/Z-19 Terminal (Operation)

H/Z-19 Terminal (Engineer Schematics)

H/Z-88/89/90

H-88 Computer (Assembly)

H-88 Computer (Operation)

H-88-1 Floppy Controller (Schematic)

H-89 Computer (Engineer Schematics)

H-89A Computer (Schematic)

H-88/89/90 Configuration Guide

Z-89-37 Double Density Controller (Installation, Operation, Schematic)
QuickData Systems Z-89-37 Clone Illustration (200KB pdf)
QuickData Systems Z-89-37 Clone Docs (3.6MB pdf)

Z-89-67 Operation Manual (Operation)

MTR-89 ROM Reference and Source Listing

MTR-90 ROM Reference and Source Listing
H/Z-100

Operators Manual Part 1 (pdf 1.5MB)
Operators Manual Part 2 (pdf 2.7MB)
W-HD Supplement (pdf 600KB)

HEATHKIT SOURCE LISTINGS

DOWNLOAD ALL (ZIP, 78MB)

VIEW ONLINE (PDF)
ASM.ASM
BASIC.ASM
DBUG.ASM
DEMO.ASM
DEMO2.ASM
DEMO3.ASM
EDIT.ASM
FLAGS.ASM
INIT.ASM
ONECOPY.ASM
PATCH.ASM
PIP.ASM
SET.ASM
SYSCMD.ASM
SYSGEN.ASM
TEST17.ASM
TEST47.ASM
XREF.ASM

ANAPRO

4MHz MOD for H89
H89/H19 Automatic Key Repeat
ATG Systems

Super-19 ROM upgrade for H-19 Documentation (updated 9-11-2011)
Super-19 ROM Image for 2732 eeprom
DG Electronics

DG-80 Z80 CPU Card for the H-8 computer (Installation/Operation)
DG-80 CPU Schematic for the H-8 computer (JPG)
DG-FP8 Front Panel Monitor for DG-80 Z80 CPU Card (Operation)
DG-FP8 Front Panel Monitor Source Listing
DG-Heartbeat and Super89 Operation Manual
DG-64K RAM board PDF
DG-64K RAM schematic PDF
CORVUS Systems

Corvus CP/M Users Guide (PDF 1.3MB)
Corvus H89 Installation Guide (PDF 1.8MB)
Magnolia 77314 Disk I/O Board (PDF 2.2MB)
MAGNOLIA Microsystems

Magnolia CP/M and hardware documentation
(77314, 77316, 77318, CP/M 2.2, CP/M 2.24, MTR-84B)

SoftStuff

PIE 1.6 Full Screen Editor

TMSI

Superset ROM upgrade for H/Z-19 Terminal (Assembly, Operation)

NORBERTO COLLADO

6 MHz Mod for H8 using static RAM memory board (from Sextant article)
MISC

Microcomputing Magazine Dissecting the HDOS Disk
QUIKSTOR-15 Winchester Operation Manual
TANDON TM500 Hard Disk Users Manual
Floppy and Hard Drive Listings

GAMES

A Galactic Experience (H19/H89) (updated 9-11-2011)
Graph Pac II Graphics Library for the Color Graphics Card
GraviTron (Arcade Game for the H19/H89) (9-15-2011)
Space Pirates (Arcade Game for the H19/H89) (9-15-2011)
Starfleet Manual (Star Trek game for the H19/H89)
Tour-700 Manual (A European Card Game)
YWing-2 Manual (Arcade Game for the H19/H89)

SOFTWARE REFERENCE MANUALS
All software reference below is in PDF format

CP/M

Volume I (Setup)
Part 1
Part 2
Part 3
Part 4
Part 5
Part 6

Volume II (Reference)
Part 1
Part 2
Part 3
Part 4
Part 5

CP/M Quick Reference

MBASIC Quick Reference

BIOS-80 Disk Modification

HDOS 2.0

Software Reference

Chapter 1
System Configuration

Chapter 2
General Operations

Chapter 3
Console Debugger

Chapter 4
Heath Text Editor

Chapter 5
Heath Assembly Language

Chapter 6
Benton Harbor Basic

HDOS System Programmer's Guide

HDOS Relocating Debugging Tool by Pat Swayne

HDOS 3.0

Software Reference Manual

Software Reference (1977 Tape Version)

Chapter 0 - Introduction
Chapter 1 - Panel Monitor (PAM-8)
Chapter 2 - Console Debugger (BUG-8)
Chapter 3 - Heath Text Editor (TED-8)
Chapter 4 - Heath Assembly Language (HASL-8)
Chapter 5 - BASIC and Extended BH BASIC

Source Listings

HOS-1-SL (595-2466) HDOS Source Listing (ZIP 33 PDF files, 78mb)
H17 ROM Source Listing (PDF format)

ROM Listings

PAM-8 Source Listing

MTR-88 Source Listing

XCON8 Source Listing

H19 Source Listing (PDF 23mb)

February 25, 2023

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