Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Thu, 28 May 2020 12:27:26 -0700 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 04SJHtmw032097; Thu, 28 May 2020 15:18:17 -0400 Received: from outgoing-exchange-7.mit.edu (OUTGOING-EXCHANGE-7.MIT.EDU [18.9.28.58]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 04SJHscw032094 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 28 May 2020 15:17:54 -0400 Received: from oc11exedge1.exchange.mit.edu (OC11EXEDGE1.EXCHANGE.MIT.EDU [18.9.3.17]) by outgoing-exchange-7.mit.edu (8.14.7/8.12.4) with ESMTP id 04SJGQlD030396 for ; Thu, 28 May 2020 15:17:04 -0400 Received: from w92exhyb4.exchange.mit.edu (18.7.71.74) by oc11exedge1.exchange.mit.edu (18.9.3.17) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Thu, 28 May 2020 15:16:52 -0400 Received: from oc11exhyb4.exchange.mit.edu (18.9.1.100) by w92exhyb4.exchange.mit.edu (18.7.71.74) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 28 May 2020 15:17:20 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (104.47.59.172) by oc11exhyb4.exchange.mit.edu (18.9.1.100) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Thu, 28 May 2020 15:17:20 -0400 Received: from DM5PR1401CA0023.namprd14.prod.outlook.com (2603:10b6:4:4a::33) by MN2PR01MB5392.prod.exchangelabs.com (2603:10b6:208:10f::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3021.24; Thu, 28 May 2020 19:17:19 +0000 Received: from DM3NAM03FT037.eop-NAM03.prod.protection.outlook.com (2603:10b6:4:4a:cafe::49) by DM5PR1401CA0023.outlook.office365.com (2603:10b6:4:4a::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3045.19 via Frontend Transport; Thu, 28 May 2020 19:17:19 +0000 Received: from mail-wm1-f52.google.com (209.85.128.52) by DM3NAM03FT037.mail.protection.outlook.com (10.152.83.55) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3045.17 via Frontend Transport; Thu, 28 May 2020 19:17:19 +0000 Received: by mail-wm1-f52.google.com with SMTP id k26so189278wmi.4 for ; Thu, 28 May 2020 12:17:18 -0700 (PDT) Received: by 2002:a1c:3cd7:0:0:0:0:0 with HTTP; Thu, 28 May 2020 12:17:17 -0700 (PDT) From: John Gardner To: Microcontroller discussion list - Public. Sender: "piclist-bounces@mit.edu" Date: Thu, 28 May 2020 12:17:17 -0700 Subject: Re: [EE]:: Reversing Sinclair's amazing 1974 calculator hack - half the ROM of the HP-35 | & Some HP35 links Thread-Topic: [EE]:: Reversing Sinclair's amazing 1974 calculator hack - half the ROM of the HP-35 | & Some HP35 links Thread-Index: AdY1JgXSU7QIHR4bTcSBI3fxySRlfg== Message-ID: References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of gmail.com designates 209.85.128.52 as permitted sender) receiver=protection.outlook.com; client-ip=209.85.128.52; helo=mail-wm1-f52.google.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=ZEixsIkS7n9uw6RBoP3PUTqnKa/zTxqQqKXVSmEQwpA=; b=bf5LI3FG3B4iZnH9p/62kO3d04SBpS/UdfilKpQmfwIMHI7RVxnthNa9yj9p1QJ6s2 tGuU251fzVrYAW553l+8NjOwBsTO1oESGMBI7ZHSWkgL8PxIv5pibhH9RbR5LN6H4ct6 URS1qlh+aZOB+Acz6a/Vxl4TGhXsBSVFQH6/d3LVlwdiOC3jxIxedZEhh71XfsCe2M7V FUSFHESqR84hTsVdS3ku0DEKRaVnEDM6WsS0w+bJkGKDLyaEaISzE1gqSY4DD9XCrW5o /HH5CLXSywe+0nR3stnRF/YdIAh0F2+oj+Bu/73DatKRU+8aNsPL9N4/IkJ2fpI8m23D y4nA== authentication-results: spf=pass (sender IP is 209.85.128.52) smtp.mailfrom=gmail.com; mit.edu; dkim=pass (signature was verified) header.d=gmail.com;mit.edu; dmarc=pass action=none header.from=gmail.com;compauth=pass reason=100 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-received: by 2002:a1c:4143:: with SMTP id o64mr257712wma.157.1590693437804; Thu, 28 May 2020 12:17:17 -0700 (PDT) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 .... https://www.jwz.org/doc/worse-is-better.html ! --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .