Changeset 158 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm

Timestamp:

May 2, 2011, 9:41:51 AM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Optimized few bytes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm (modified) (5 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH9h_HInit.asm

@@ -46 +46 @@
 
     ; Try to select drive and wait until ready
-    or      WORD [di+DPT.wFlags], MASK_DPT_RESET        ; Everything uninitialized
+    or      BYTE [di+DPT.bFlagsHigh], MASKH_DPT_RESET       ; Everything uninitialized
     call    AccessDPT_GetDriveSelectByteToAL
     mov     [bp+IDEPACK.bDrvAndHead], al
     call    Device_SelectDrive
     jc      SHORT .ReturnNotSuccessfull
-    and     WORD [di+DPT.wFlags], ~FLG_DPT_RESET_nDRDY  ; Clear since success
+    and     BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_RESET_nDRDY ; Clear since success
 
     ; Initialize CHS parameters if LBA is not used
     call    InitializeDeviceParameters
     jc      SHORT .RecalibrateDrive
-    and     WORD [di+DPT.wFlags], ~FLG_DPT_RESET_nINITPRMS
+    and     BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_RESET_nINITPRMS
 
     ; Recalibrate drive by seeking to cylinder 0
@@ -62 +62 @@
     call    AH11h_RecalibrateDrive
     jc      SHORT .InitializeBlockMode
-    and     WORD [di+DPT.wFlags], ~FLG_DPT_RESET_nRECALIBRATE
+    and     BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_RESET_nRECALIBRATE
 
     ; Initialize block mode transfers
@@ -68 +68 @@
     call    InitializeBlockMode
     jc      SHORT .ReturnNotSuccessfull
-    and     WORD [di+DPT.wFlags], ~FLG_DPT_RESET_nSETBLOCK  ; Keeps CF clear
+    and     BYTE [di+DPT.bFlagsHigh], ~FLGH_DPT_RESET_nSETBLOCK ; Keeps CF clear
 
 .ReturnNotSuccessfull:
@@ -90 +90 @@
 InitializeDeviceParameters:
     ; No need to initialize CHS parameters if LBA mode enabled
-    test    BYTE [di+DPT.wFlags], FLG_DRVNHEAD_LBA  ; Clear CF
+    test    BYTE [di+DPT.bFlagsLow], FLG_DRVNHEAD_LBA   ; Clear CF
     jnz     SHORT ReturnSuccessSinceInitializationNotNeeded
 
@@ -115 +115 @@
 ALIGN JUMP_ALIGN
 InitializeBlockMode:
-    test    WORD [di+DPT.wFlags], FLG_DPT_BLOCK_MODE_SUPPORTED  ; Clear CF
+    test    BYTE [di+DPT.bFlagsHigh], FLGH_DPT_BLOCK_MODE_SUPPORTED ; Clear CF
     jz      SHORT ReturnSuccessSinceInitializationNotNeeded