www.delorie.com/djgpp/doc/rbinter/55.html   search  
2FD201BX4849

Category: memory management

INT 2F - Quarterdeck RPCI - QEMM/QRAM v5.0+ - GET HIRAM MEMORY CHAIN

	AX = D201h
	BX = 4849h ("HI")
	CX = 5241h ("RA")
	DX = 4D30h ("M0")
Return: BX = 4F4Bh ("OK")
	CX = segment of start of HIRAM chain
	DX = reserved block owner (QEMM/QRAM code segment)
Range:	AH=C0h to AH=FFh, selected by scanning AH=D2h-FFh, then AH=C0h-D1h
Note:	the HIRAM memory chain has the same format as the regular DOS 4.0
	  memory chain (see #01628 at INT 21/AH=52h), except that XMS Upper
	  Memory Blocks have the block header program name field set to
	  "UMB"; blocks whose "owner" field is set to the reserved segment
	  returned in DX are locked-out regions such as video memory and ROMs.
SeeAlso: AX=12FFh/BX=0006h,AX=D200h

  webmaster   donations   bookstore     delorie software   privacy  
  Copyright 2000   by Ralf Brown     Updated Jul 2000