Changeset 148 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH11h_HRecal.asm

Timestamp:

Mar 19, 2011, 8:09:41 PM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• INT 13h optimizations to save almost 100 bytes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH11h_HRecal.asm (modified) (4 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h/AH11h_HRecal.asm

@@ -1 @@
-; File name     :   AH11h_HRecal.asm
-; Project name  :   IDE BIOS
-; Created date  :   28.9.2007
-; Last update   :   14.1.2011
-; Author        :   Tomi Tilli,
-;               :   Krister Nordvall (optimizations)
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Int 13h function AH=11h, Recalibrate.
 
@@ -15 +10 @@
 ; AH11h_HandlerForRecalibrate
 ;   Parameters:
-;       AH:     Bios function 11h
-;       DL:     Drive number
-;   Parameters loaded by Int13h_Jump:
-;       DS:     RAMVARS segment
-;   Returns:
+;       DL:     Translated Drive number
+;       DS:DI:  Ptr to DPT (in RAMVARS segment)
+;       SS:BP:  Ptr to INTPACK
+;   Returns with INTPACK in SS:BP:
 ;       AH:     BIOS Error code
 ;       CF:     0 if succesfull, 1 if error
-;       IF:     1
-;   Corrupts registers:
-;       Flags
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
 AH11h_HandlerForRecalibrate:
-    push    dx
-    push    cx
-    push    bx
-    push    ax
 %ifndef USE_186
     call    AH11h_RecalibrateDrive
-    jmp     Int13h_PopXRegsAndReturn
+    jmp     Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
 %else
-    push    Int13h_PopXRegsAndReturn
+    push    Int13h_ReturnFromHandlerAfterStoringErrorCodeFromAH
     ; Fall through to AH11h_RecalibrateDrive
 %endif
@@ -42 +29 @@
 
 ;--------------------------------------------------------------------
-; Int 13h function AH=11h, Recalibrate.
-;
 ; AH11h_HRecalibrate
 ;   Parameters:
-;       DL:     Drive number
-;       DS:     RAMVARS segment
+;       DS:DI:  Ptr to DPT (in RAMVARS segment)
 ;   Returns:
-;       DS:DI:  Ptr to DPT
 ;       AH:     BIOS Error code
 ;       CF:     0 if succesfull, 1 if error
@@ -55 +38 @@
 ;       AL, BX, CX, DX
 ;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
 AH11h_RecalibrateDrive:
     ; Recalibrate command is optional, vendor specific and not even