From mboxrd@z Thu Jan 1 00:00:00 1970 From: cowan@mercury.ccil.org (John Cowan) Date: Wed, 16 Sep 2015 08:54:25 -0400 Subject: [TUHS] Happy Programmers' Day! In-Reply-To: <20150916031030.GH81320@eureka.lemis.com> References: <1442094566.302.for-standards-violators@oclsc.org> <1e69b028f0bba306576914ab0a37de42.squirrel@webmail.yaccman.com> <20150916031030.GH81320@eureka.lemis.com> Message-ID: <20150916125424.GA3771@mercury.ccil.org> Greg 'groggy' Lehey scripsit: > Clearly a reference to Dave H's PDP-8 with its 16 word (24 byte) RIM > loader. The RK8E bootstrap for OS/8 was even shorter: just two instructions. The first loaded a block from the disk (you forced it to be block 0 loaded at address 0 of field 0 by using the CLEAR key on the front panel first), and the second was jump-to-self, which executed until the disk overwrote it with code that waited until the block had been loaded and then continued executing the newly loaded code. -- John Cowan http://www.ccil.org/~cowan cowan at ccil.org Uneasy lies the head that wears the Editor's hat! --Eddie Foirbeis Climo