Changeset 412 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeIO.asm

Timestamp:

Apr 28, 2012, 4:08:03 PM (12 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes:

• Minor optimizations to the JR-IDE/ISA code.
• Some cleanups (the MemoryMappedIDE folder and Bootmenu_SwapDrives.txt were deleted).

File:

• trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeIO.asm (modified) (7 diffs)

trunk/XTIDE_Universal_BIOS/Src/Device/IDE/IdeIO.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
@@ -42 +42 @@
     jmp     SHORT OutputToJrIdeRegister
 .OutputToIoMappedIde:
-%endif
-%endif
+%endif  ; MODULE_JRIDE
+%endif  ; MODULE_8BIT_IDE
 
     mov     bl, IDEVARS.wPortCtrl
@@ -68 +68 @@
     jnz     SHORT OutputALtoIOmappedIdeRegisterInDL
 
+%if JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET & 0FFh = 0
+    mov     dh, JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET >> 8
+%else
     add     dx, JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET
+%endif
 OutputToJrIdeRegister:
     mov     bx, dx
@@ -75 +79 @@
 ALIGN JUMP_ALIGN
 OutputALtoIOmappedIdeRegisterInDL:
-%endif
-%endif
+%endif  ; MODULE_JRIDE
+%endif  ; MODULE_8BIT_IDE
 
     mov     bl, IDEVARS.wPort
@@ -116 +120 @@
     jnz     SHORT .InputToALfromIOmappedIdeRegisterInDL
 
+%if JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET & 0FFh = 0
+    mov     dh, JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET >> 8
+%else
     add     dx, JRIDE_COMMAND_BLOCK_REGISTER_WINDOW_OFFSET
+%endif
     mov     bx, dx
     mov     al, [cs:bx]
     ret
 .InputToALfromIOmappedIdeRegisterInDL:
-%endif
-%endif
+%endif  ; MODULE_JRIDE
+%endif  ; MODULE_8BIT_IDE
     mov     bl, IDEVARS.wPort
     call    GetIdePortToDX
@@ -172 +180 @@
 %else   ; Only standard IDE devices
     xor     bh, bh
+    add     bl, [di+DPT.bIdevarsOffset]         ; CS:BX now points port address
     xor     dh, dh
-    add     bl, [di+DPT.bIdevarsOffset]     ; CS:BX now points port address
-    add     dx, [cs:bx]                     ; DX now has port address
+    add     dx, [cs:bx]                         ; DX now has port address
     ret
 %endif