Changeset 117 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH15h_HSize.asm

Timestamp:

Feb 28, 2011, 12:16:21 PM (14 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes to the XTIDE Universal BIOS:

• Bugfix: The stack swapping in BootVars_SwitchBackToPostStack wasn't really an atomic operation anymore (on 186 and 286 CPUs) so I reverted the change I did in the previous revision.
• A very small size optimization in AH15h_HSize.asm

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH15h_HSize.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH15h_HSize.asm

@@ -1 @@
-; File name     :   AH15h_HSize.asm
-; Project name  :   IDE BIOS
-; Created date  :   28.9.2007
-; Last update   :   24.8.2010
-; Author        :   Tomi Tilli
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Int 13h function AH=15h, Read Disk Drive Size.
 
@@ -36 +32 @@
     push    ax
 
-    call    HCapacity_GetSectorCountFromOurAH08h; Sector count to DX:AX
+    call    HCapacity_GetSectorCountFromOurAH08h; Sector count to DX:AX (clears CF)
     mov     cx, dx                              ; HIWORD to CX
     xchg    dx, ax                              ; LOWORD to DX
@@ -43 +39 @@
     pop     bx
     mov     ah, 3                               ; Type code = Hard disk
-    clc
     jmp     Int13h_ReturnWithValueInDL