GitHub – DOS 1.0: Transcription of Tim Paterson's DOS Printouts

Tim Paterson's DOS listings, containing source code of 86-DOS 1.00 kernel, various PC-DOS 1.00 pre-release kernels and utilities, and the Microsoft BASIC-86 Compiler runtime library.

The DOS-related portions have been transcribed and turned into compilable source code.

1_transcription - transcription of the listings, essentially the raw printer output 2_printed_files - the original files that were printed, extracted from the raw printer output above 3_source_code - compilable source code extracted from the printed files above

If you just want to browse the source code or compile/assemble it, choose 3_source_code.

Paterson's stack of DOS listings contains 10 bundles of continuous-feed paper, from top to bottom:

• Bundle 01 (86 pages)
• Bundle 02 (62 pages): 86DOS.A86 (created: 1981/07/07)
• Bundle 03 (18 pages): EDLIN.DIF, CHKDSK.A86
• Bundle 04 (58 pages): 86DOS.ASM (created: 1981/06/15)
• Bundle 05 (57 pages)
• Bundle 06 (71 pages)
• Bundle 07 (10 pages): CHKDSK.A86
• Bundle 08 (32 pages): 86DOS.DIF
• Bundle 09 (459 pages): LIBLST.LOG, BASLIB.PRT
• Bundle 10 (20 pages): PAINT.ASM, CIRCLE.ASM

Bundles 9 and 10 have not yet been transcribed. If you wish to help transcribe them, please submit a pull request. Only contributions that provide direct transcriptions of the listings or correct typos in existing transcriptions will be merged.

Most of the sources here target Seattle Computer Products' ASM assembler, so you will need a copy. It can be obtained from any release of 86-DOS or MS-DOS by Seattle Computer Products. You will also need the HEX2BIN utility from Seattle Computer Products to convert Intel HEX objects produced by the assembler into binaries.

The simplest way to assemble a source file is to run ASM <FILENAME-NO-EXTENSION>, followed by HEX2BIN <FILENAME-NO-EXTENSION>.

Example:

A:ASM 86DOS
Seattle Computer Products 8086 Assembler Version 2.24
Copyright 1979,80,81 by Seattle Computer Products, Inc.
Error Count = 0
A:HEX2BIN 86DOS
A: