Changeset 170 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH48h_GetExtendedDriveParameters.asm

Timestamp:

Aug 22, 2011, 2:25:51 PM (13 years ago)

Author:

krille_n_@…

google:author:

krille_n_@hotmail.com

Message:

Changes to all parts of the project:

• Minor size optimizations
• Commented away some ALIGN JUMP_ALIGN directives in the Int13h handler (they are either in init procedures, procedures that are rarely called or are unnecessary due to conditional assembly)
• Fixed what appears to be a typo in EBIOS.inc

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH48h_GetExtendedDriveParameters.asm (modified) (1 diff)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/EBIOS/AH48h_GetExtendedDriveParameters.asm

@@ -39 +39 @@
     mov     ds, [bp+IDEPACK.intpack+INTPACK.ds]
     mov     ax, MINIMUM_EDRIVEINFO_SIZE
-    cmp     WORD [di+EDRIVE_INFO.wSize], ax
+    cmp     [di+EDRIVE_INFO.wSize], ax
     jb      SHORT AH42h_ReturnWithInvalidFunctionError
     je      SHORT .SkipEddConfigurationParameters
 
     ; We do not support EDD Configuration Parameters so set to FFFF:FFFFh
-    xor     ax, ax
-    dec     ax          ; AX = FFFFh
+    mov     ax, -1      ; AX = FFFFh
     mov     [di+EDRIVE_INFO.fpEDDparams], ax
     mov     [di+EDRIVE_INFO.fpEDDparams+2], ax