Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!mgnetp!ihnp4!zehntel!hplabs!sri-unix!RCONN@Simtel20.ARPA From: RCONN@Simtel20.ARPA Newsgroups: net.micro.cpm Subject: LDR Problem Message-ID: <623@sri-arpa.UUCP> Date: Wed, 1-Aug-84 23:50:00 EDT Article-I.D.: sri-arpa.623 Posted: Wed Aug 1 23:50:00 1984 Date-Received: Sat, 4-Aug-84 04:02:49 EDT Lines: 49 From: Richard ConnHi, Ted, Your report of problems with LDR is interesting. No, no one has reported having any similar problems. I notice a few items from your report: 1. First, since you did not assemble LDR, you should have received a distribution version. It contains a Class 1 Environment Descriptor and you should see the address of your Environment Descriptor buffer at 109H and 10AH. I recommend that you check the original CRC against the value in the distribution list to make sure that you have a good copy. Also, after running Z3INS on LDR, load LDR.COM with DDT and check 109H-10AH to see that the address of your Environment Descriptor is properly in place. LDR.COM should extend from 100H to 0AFFH (next PC is 0B00H). 2. I highly suspect the LDR.COM that you have as being invalid since you report a "DIRALPHA -- Pointer Error" message, and there is no such message inside of the distribution version of LDR.COM. This particular message comes from the SYSLIB2 DIRALPHA routine and, as a rule, should never appear anyway, since it indicates that the pointer-based sort routine failed. If someone tried to reassemble LDR with SYSLIB2 instead of SYSLIB 3, they would have had to change the source and would now be bringing in all sorts of older routines which should not be there, such as routines which deal with disk-based named dirs. In short - one absolute mess. 3. You are quite correct in the loading sequence. Once LDR has been installed, it contains only a pointer to an Environment Descriptor. This descriptor must be resolved first, and then the other System Segments may be loaded. This is a common mistake which is made the first time around, and it looks like you avoided it. That is the analysis I can offer from the information you gave me. It sounds like your source does not have the correct files, offhand. You might want to consider going with the Echelon alternative, because for only $39 you can get a complete starter kit and a hard copy of the installation manual and Sampler without having to worry about corrupted or modified files (a CRC list is provided). This also ties you into the support system of Echelon and gets you a subscription to the newsletter (of which issue 4 is now coming up). The newsletter, among other things, talks about questions that people have been asking on a recurring basis and may resolve some of your problems before you encounter them. SIMTEL20 contains the CRC lists if you don't have access to one. Rick