https://largescalesystems.org/ 2026-09-30T00:11:31+0000 https://largescalesystems.org/ https://largescalesystems.org/lib/tpl/dokuwiki/images/favicon.ico text/html 2026-09-22T14:11:07+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/bug_report?rev=1790086267&do=diff Bug reports are very important, as they help us and you. Please use this form to file bug reports or feature requests for our software. Due to limited resources, we typically will not respond directly or immediately, but the relevant people within our organization will be informed. text/html 2026-09-23T02:22:52+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/gopher-ng?rev=1790130172&do=diff gopher-ng A modern, beautiful Gopher client for Linux and OS X (GTK) By Dave McGuire Gopher-ng is a program that is used to browse the Gopherspace. It follows modern user interface and GUI program conventions, and gives the user a reasonable amount of configurability, including the ability to set a default home page. text/html 2026-09-24T00:31:45+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/kicad_bom?rev=1790209905&do=diff kicad_bom A KiCad component indexing and search tool By Dave McGuire kicad_bom searches your directory structure for KiCad design files and builds a database of components that you've used in those project. You can then query the database for a component and get a list of the projects where you've used it. text/html 2026-09-24T01:15:41+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/mdl?rev=1790212541&do=diff MDL - Modcomp Diagnostic Loader A serial loader program for Modcomp fillable, SAL, DAX, and EDAX programs By Dave McGuire MDL is a paced serial downloader for fillable, SAL, DAX, and EDAX executable programs. It has a set of built-in second-level loader programs, including SAL, DAX, and EDAX, as well as a large array of hardware diagnostic programs. text/html 2026-09-24T20:39:56+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/p50-tiny-basic?rev=1790282396&do=diff P-50 Tiny BASIC A Tiny BASIC interpreter for the Westinghouse Prodac-50 (P-50) computer By Dave McGuire P-50 Tiny BASIC is a new (2026) BASIC interpreter for the Westinghouse P-50. It has not yet been tested on real hardware, but it runs under text/html 2026-09-27T22:40:33+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/p50asm?rev=1790548833&do=diff p50asm A cross assembler for the Westinghouse Prodac-50 (P-50) computer By Dave McGuire p50asm runs on modern computers and generates executable code for the Westinghouse P-50, a 14-bit process control computer from 1964. The original Westinghouse assembler for this architecture, which was a cross-assembler that ran on Univac computers, has been lost. text/html 2026-09-24T19:05:24+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/p50docs?rev=1790276724&do=diff Westinghouse P-50 Programming Documentation New programming documentation for the Westinghouse Prodac-50 (P-50) computer By Dave McGuire These are new (2026) documents related to programming the Westinghouse P-50 process control computer. The Instruction Repertoire document is a re-typeset rendition of the original manual from Westinghouse, and the Quick Reference Card is a new document. text/html 2026-09-29T12:51:37+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/p50emu?rev=1790686297&do=diff p50emu An emulator for the Westinghouse Prodac-50 (P-50) computer By Dave McGuire p50emu runs on modern computers and emulates the Westinghouse P-50, a 14-bit process control computer from 1964. All 25 instructions and both addressing modes are implemented, as well as a facility to connect external I/O devices. Both TUI text/html 2026-09-25T15:05:44+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/pdp11xfer?rev=1790348744&do=diff pdp11xfer A disk imaging package for PDP-11 computers By Dave McGuire pdp11xfer is a command-line program that allows the user to write disk image files on a modern computer to a real disk drive in a PDP-11, or read a real disk drive in a PDP-11 and create an image of that disk on a modern computer, both over a serial console port. text/html 2026-09-24T01:59:49+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/phshim?rev=1790215189&do=diff phshim A shim program that connects to a back-end database server and presents a CCSO Nameserver (RFC 2378) interface By Dave McGuire The CCSO Nameserver protocol, also known as the Ph protocol, was an early network database search system, dating to the early 1990s. It was primarily used to store data such as telephone numbers and email addresses within and between organizations. Ph servers were accessed by Ph clients, typically from a command line on a UNIX or VMS host. It originated at th… text/html 2026-09-24T02:00:22+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/phtui?rev=1790215222&do=diff phtui A TUI client for CCSO Nameserver Ph/Qi protocol By Dave McGuire Phtui is TUI client that connects to CCSO Nameserver Ph/Qi protocol (RFC 2378) servers and facilitates searching, retrieving, and editing of database records. The CCSO Nameserver protocol, also known as the Ph protocol, was an early network database search system, dating to the early 1990s. It was primarily used to store data such as telephone numbers and email addresses within and between organizations. Ph servers were … text/html 2026-09-23T02:23:24+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/rsp-browser?rev=1790130204&do=diff rsp-browser A modern TUI viewer/navigator for RSP (Radial Serial Protocol) tape drives, such as the DEC TU58. By Dave McGuire Rsp-browser is a program that accesses RSP-protocol tape drives via a serial port (either a local serial port or a USB<-> text/html 2026-09-26T14:42:11+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/tapt88?rev=1790433731&do=diff tapt88 A conversion program for .tap files and Systems Integration/MODCOMP T88 tape format By Dave McGuire The Systems Integration Corporation/MODCOMP T88xx mass storage subsystems for MODCOMP computers shipped Archive 2150S QIC tape drives, which have a fixed record size of 512 bytes. However, original MODCOMP tape subsystems implement variable-length records, and most software depends on that. The T88 implements a proprietery format that stores the original records and their lengths to sy… text/html 2026-09-23T02:23:39+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/tapview?rev=1790130219&do=diff tapview A modern TUI viewer/navigator for .tap and .tpc tape image files By Dave McGuire Tapview is a program to view and navigate .tap (4-byte block size) and .tpc (2-byte block size) tape image files. It presents a list of blocks and their sizes, and the user can view the data within each block in a variety of formats via navigation and display option hotkeys. It also calculates the Shannon entropy of block data, as an aid to identifying text/html 2026-09-27T22:40:23+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/v620asm?rev=1790548823&do=diff v620asm A DAS-compatible cross assembler for the Varian 620/L computer By Dave McGuire v620asm runs on modern computers and generates executable code for the Varian 620/L, a 16-bit minicomputer from 1973. The original Varian assemblers for this architecture appear to have been lost. text/html 2026-09-27T22:29:49+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/v620docs?rev=1790548189&do=diff Varian 620/L Programming Documentation New programming documentation for the Varian 620/L computer By Dave McGuire These are new (2026) documents related to programming the Varian 620/L minicomputer. There is a quick-reference card for the processor architecture and instruction set, and another quick reference card that covers our DAS-compatible assembler, text/html 2026-09-27T23:54:12+0000 Anonymous (anonymous@undisclosed.example.com) https://largescalesystems.org/software/v620emu?rev=1790553252&do=diff v620emu An emulator for the Varian 620/L minicomputer By Dave McGuire v620emu runs on modern computers and emulates the Varian 620/L, a 16-bit minicomputer from 1973. The processor, some options, and several I/O devices are implemented. Both TUI