rcornwell

GW-BASIC

The original source code of Microsoft GW-BASIC from 1983

printf-tac-toe

tic-tac-toe in a single call to printf

Hypervisor-From-Scratch

Source code of a multiple series of tutorials about the hypervisor. Available at: https://rayanfam.com/tutorials

simh

The Open SIMH simulators package

6502_65C02_functional_tests

Tests for all valid opcodes of the 6502 and 65C02 processor

hyperion

The SDL Hercules 4.x Hyperion version of the System/370, ESA/390, and z/Architecture Emulator

berkeley-softfloat-3

SoftFloat release 3

ProcessorTests

A language-agnostic JSON-encoded instruction-by-instruction test suite for the 8088, 68000, 65816, 65[c]02 and SPC700 that includes bus activity.

sims

Burroughs B5500, ICL1900, SEL32, IBM 360/370, IBM 7000 and DEC PDP10 KA10/KI10/KL10/KS10, PDP6 simulators for SimH

CP-67-CMS-Source

This is the original source code for the CP/67 CMS operating system from 1969

nankervis-pdp10-js

DECsystem-10 (PDP-10 KI10) Emulator in Javascript

test386.asm

x86 CPU tester for emulators

ibm-system-360-50-simulator

Simulator of an IBM System/360 Model 50

simtools

A collection of tools for use with SIMH

p50em

Prime 50-Series Emulator

68k-undoc

The undocumented 68000

mse

MSE - Multi-System Emulator

HistoricAerospaceSoftware

A collection of NASA (and others) public domain software, much of which is for early mainframes like the IBM360 and 7090/7074

GB

Yet another Game Boy Emulator

minnow-disk

Reading and analyzing IBM 23FD Minnow floppy disks

kl10-microcode

KL10 model B (KL10-PV) PDP-10 CPU emulation through execution of the original microcode

vtapeutils

Utilities for handling virtual tapes in several formats.

ksim

fress-hacks

utilities and command line hacks for FRESS retrocomputing

pdp6-programs

.github

KA10sn32

Simulation code for the specific PDP-10 serial number 32 at the Stanford A. I. Lab in 1974 as a solo processor with all the I/O devices simulated as on the PDP-10. Omit the co-processor PDP-6 sn16.

simh

The Open SIMH simulators package

tops10vm

Abandoned PDP-10/TOPS-10 Emulator

undart-2018

Software to curate and present the SAILDART archive of backup tape data from the first Stanford Artificial Intelligence Lab of the 1970s.