please dont rip this site
Function  53h   "Used Internally by DOS" - Translate BPB 
 *              Translates BPB (BIOS Parameter Block, see below) into a DOS Disk 
		Block (see function call 32h).   
entry   AH      53h 
	DS:SI   pointer to BPB  
	ES:BP   pointer to area for DOS Disk Block. 
		Layout of Disk Block: 
		bytes   value 
		00h-01h bytes per sector, get from DDB bytes 02h-03h. 
		02h     sectors per cluster, get from (DDB byte 4) + 1 
		03h-04h reserved sectors, get from DDB bytes 06h-07h 
		05h     number of FATs, get from DDB byte 08h 
		06h-07h number of root dir entries, get from DDB bytes 09h-0Ah 
		08h-09h total number of sectors, get from:  
			((DDB bytes 0Dh-0Eh) - 1) * (sectors per cluster (BPB  
			byte 2)) + (DDB bytes 0Bh-0Ch) 
		0Ah     media descriptor byte, get from DDB byte 16h 
		0Bh-0Ch number of sectors per FAT, get from DDB byte 0Fh 
return  unknown                           
 
 
file: /Techref/INT/21f/53.htm, 1KB, , updated: 1999/2/20 10:26, local time: 2024/12/21 08:14,
TOP NEW HELP FIND: 
13.59.0.25:LOG IN
 ©2024 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF="http://massmind.org/techref/INT/21f/53.htm"> INT 21f 53</A>
After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.


Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?
 

Welcome to massmind.org!

 
Quick, Easy and CHEAP! RCL-1 RS232 Level Converter in a DB9 backshell
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  .