From:	"Angelene and Klaus Thane" <thane AT nospam DOT net>
Newsgroups:	comp.os.msdos.djgpp
References:	<Pine DOT LNX DOT 4 DOT 10 DOT 10001072334080 DOT 691-100000 AT yahoo DOT com>
Subject:	Re: biosdisk & int 13 extensions
Lines:	28
X-Priority:	3
X-MSMail-Priority:	Normal
X-Newsreader:	Microsoft Outlook Express 5.00.2615.200
X-MimeOLE:	Produced By Microsoft MimeOLE V5.00.2615.200
Message-ID:	<jvUd4.14451$Ak.200392@news1.mia>
Date:	Sat, 8 Jan 2000 22:53:14 -0600
NNTP-Posting-Host:	216.76.249.221
X-Trace:	news1.mia 947393615 216.76.249.221 (Sat, 08 Jan 2000 23:53:35 EST)
NNTP-Posting-Date:	Sat, 08 Jan 2000 23:53:35 EST
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Inp.:
 AH = 48h
 DL = drive (80h-FFh)
 DS:SI -> buffer for drive parameters (see #0183)
Return: CF clear if successful
     AH = 00h
     DS:SI buffer filled
 CF set on error
     AH = error code (see #0144)


Format of IBM/MS INT 13 Extensions drive parameters:
Offset Size Description
 00h WORD (call) size of buffer (001Ah for v1.x, 001Eh for v2.x)
  (ret) size of returned data
 02h WORD information flags (see #0184)
 04h DWORD number of physical cylinders on drive
 08h DWORD number of physical heads on drive
 0Ch DWORD number of physical sectors per track
 10h QWORD total number of sectors on drive
 18h WORD bytes per sector
---v2.0+ ---
 1Ah DWORD -> EDD configuration parameters (see #0186)
  FFFFh:FFFFh if not available
Note: if the size is less than 30 on call, the final DWORD will not be
   returned by a v2.x implementation

- Raw text -