From: hpa <hpa>
Date: Wed, 27 Aug 2003 20:37:51 +0000 (+0000)
Subject: Slight optimization
X-Git-Tag: syslinux-3.11~522
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a3fbe314c9726172d6ffd52378b83c6c22716406;p=platform%2Fupstream%2Fsyslinux.git

Slight optimization
---

diff --git a/memdisk/memdisk.asm b/memdisk/memdisk.asm
index ad295b4..f356328 100644
--- a/memdisk/memdisk.asm
+++ b/memdisk/memdisk.asm
@@ -173,9 +173,9 @@ Reset:
 		; user didn't request HD reset, then just drop the command.
 		xor ax,ax		; Bottom of memory
 		mov es,ax
-		mov al,[es:0x410]	; BIOS equipment byte
-		shr al,6		; Top two bits + 1
-		jz success		; If this is the only device, just report success
+		; BIOS equipment byte, top two bits + 1 == total # of floppies
+		test byte [es:0x410],0C0h	
+		jz success
 		; ... otherwise pass it to the BIOS
 .pass_on:
 		pop ax			; Drop return address