From: utzoo!decvax!ucbvax!C70:info-cpm Newsgroups: fa.info-cpm Title: H89 at 4 Mhz with Percom Controller Article-I.D.: ucb.1227 Posted: Mon May 31 00:13:38 1982 Received: Mon May 31 05:21:24 1982 >From PLK@Mit-Mc Mon May 31 00:13:12 1982 The Percom soft sectored disk controller can be operated with a 4 MHz CPU on the H89. An ASM file for modifying the Percom BIOS and formatting program is available as: MC:AR44:CPM;ZB4MHZ ASM There is an accompanying DOC file: MC:AR44:CPM;ZB4MHZ DOC Bugs/suggestions may be addressed to PLK at MIT-MC.