Changeset 491 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/BootVars.asm

Timestamp:

Dec 15, 2012, 2:46:29 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Added a new define (USE_UNDOC_INTEL) that enables optimizations possible by using undocumented instructions available on all Intel processors and truly compatible clones. AFAIK the only exceptions are the NEC V-series and the Sony CXQ70108 processors so this option should be safe for use on the AT builds.
• Building BIOSDRVS or the BIOS without MODULE_STRINGS_COMPRESSED would fail due to the recent code exclusions so I changed them a bit. Also fixed the mistaken change to Main.asm
• Changed the Tandy specific info in Configuration_FullMode.txt so it matches the info in the Wiki.
• Optimizations and fixes in general.

File:

• trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/BootVars.asm (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Src/VariablesAndDPTs/BootVars.asm

@@ -3 +3 @@
 
 ;
-; XTIDE Universal BIOS and Associated Tools 
+; XTIDE Universal BIOS and Associated Tools
 ; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2012 by XTIDE Universal BIOS Team.
 ;
@@ -10 +10 @@
 ; the Free Software Foundation; either version 2 of the License, or
 ; (at your option) any later version.
-; 
+;
 ; This program is distributed in the hope that it will be useful,
 ; but WITHOUT ANY WARRANTY; without even the implied warranty of
 ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-; GNU General Public License for more details.      
+; GNU General Public License for more details.
 ; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
-;       
+;
 
 ; Section containing code
@@ -33 +33 @@
 BootVars_Initialize:
 %ifdef MODULE_8BIT_IDE
-    mov     WORD [es:BOOTVARS.wNextXTCFportToScan], XTCF_BASE_PORT_1
+    mov     WORD [es:BOOTVARS.wNextXTCFportToScan], XTCF_BASE_PORT_DETECTION_SEED
 %endif
 
@@ -72 +72 @@
 
 %endif ; MODULE_HOTKEYS
-
-
-%ifdef MODULE_8BIT_IDE
-;--------------------------------------------------------------------
-; BootVars_GetNextXTCFportToDetectToDX
-;   Parameters:
-;       ES:     BDA Segment
-;   Returns:
-;       DX:     Next XT-CF port to detect
-;   Corrupts registers:
-;       AX
-;--------------------------------------------------------------------
-BootVars_GetNextXTCFportToDetectToDX:
-    mov     dx, [es:BOOTVARS.wNextXTCFportToScan]
-    test    dl, dl
-    jz      SHORT .NextOneIs240hor340h
-    add     WORD [es:BOOTVARS.wNextXTCFportToScan], XTCF_BASE_PORT_3 - XTCF_BASE_PORT_2
-    ret
-.NextOneIs240hor340h:
-    mov     BYTE [es:BOOTVARS.wNextXTCFportToScan], XTCF_BASE_PORT_2 & 0FFh ; 40h
-    ret     
-%endif ; MODULE_8BIT_IDE