Talk:BIOS parameter block

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The referenced page: http://homepage.ntlworld.com./jonathan.deboynepollard/FGA/bios-parameter-block.html is far more useful than this wiki page. 80.176.88.36 (talk) —Preceding undated comment added 14:30, 24 October 2009 (UTC).[reply]

JdBP 12.8

The interesting article by JdPB listed in the external references suggests a fix for what he identifies as BPB version 7.0. Later he jumps to the conclusion that 0x80 indicates version 8.0 at offset 0x26 for NTFS. However, he correctly identified magic 0x28 as version 4.0, with the common 0x29 also used for version 4.0. Other sources claim that 0x28 differed in the last bytes, and/or that it was used for what is known as the "European DOS 4.0", a multi-tasking DOS created by MS for Siemens. All sources I'm aware of agree that the magic hex. value corresponds to a decimal version, e.g., the fix suggested by JdPB uses 0x46 for 7.0 (4*16+6=70). In other words, I don't believe that 0x80 is any version 8.0, it would be version 12.8, and that makes no sense. Nothing to do in the article, just be very careful with the given sources, e.g., there were a few hard to spot errors in the FAT article some weeks ago. –82.113.103.164 (talk) 13:52, 20 August 2011 (UTC)[reply]