Changeset 35 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h.asm

Timestamp:

Aug 24, 2010, 6:44:44 PM (14 years ago)

Author:

Tomi Tilli

google:author:

aitotat

Message:

Cleaned recent changes a bit to save few bytes.

File:

• trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h.asm (modified) (7 diffs)

trunk/XTIDE_Universal_BIOS/Src/Handlers/Int13h.asm

@@ -2 +2 @@
 ; Project name  :   IDE BIOS
 ; Created date  :   21.9.2007
-; Last update   :   1.8.2010
+; Last update   :   24.8.2010
 ; Author        :   Tomi Tilli
 ; Description   :   Int 13h BIOS functions (Floppy and Hard disk).
@@ -95 +95 @@
     ; Special return processing required if target function
     ; returns something in DL
-    mov     di, Int13h_ReturnFromAnotherBiosWithoutSwappingDrives
+    mov     di, Int13h_ReturnFromAnotherBiosWithValueInDL
     call    DriveXlate_DoesFunctionReturnSomethingInDL
     jc      SHORT .PushIretAddress
-    add     di, BYTE Int13h_ReturnFromAnotherBios - Int13h_ReturnFromAnotherBiosWithoutSwappingDrives
+    add     di, BYTE Int13h_ReturnFromAnotherBios - Int13h_ReturnFromAnotherBiosWithValueInDL
 .PushIretAddress:
     pushf                               ; Push FLAGS to simulate INT
@@ -133 +133 @@
 
 ;--------------------------------------------------------------------
-; Return handlers from another INT 13h BIOS.
-;
-; Int13h_ReturnFromAnotherBiosWithoutSwappingDrives
+; Int13h_ReturnFromAnotherBiosWithValueInDL
 ; Int13h_ReturnFromAnotherBios
 ;   Parameters:
@@ -147 +145 @@
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-Int13h_ReturnFromAnotherBiosWithoutSwappingDrives:
+Int13h_ReturnFromAnotherBiosWithValueInDL:
     push    ds
     push    di
     pushf                               ; Store return flags
     call    RamVars_GetSegmentToDS
-    dec     BYTE [RAMVARS.xlateVars+XLATEVARS.bRecurCnt]
+    call    DriveXlate_WhenLeavingInt13hWithReturnValueInDL
     jmp     SHORT Int13h_Leave
+
 ALIGN JUMP_ALIGN
 Int13h_ReturnFromAnotherBios:
@@ -167 +166 @@
 ; Returns from any BIOS function implemented by this BIOS.
 ;
-; Int13h_ReturnWithoutSwappingDrives
-; Int13h_StoreErrorCodeToBDAandPopDSDIandReturn
-; Int13h_StoreErrorCodeToBDAandPopXRegsAndReturn
+; Int13h_ReturnWithValueInDL
 ; Int13h_PopXRegsAndReturn
 ; Int13h_PopDiDsAndReturn
@@ -181 +178 @@
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-Int13h_ReturnWithoutSwappingDrives:
+Int13h_ReturnWithValueInDL:
     pushf
-    dec     BYTE [RAMVARS.xlateVars+XLATEVARS.bRecurCnt]    ; Preserves CF
-    call    HError_StoreBiosErrorCodeFromAHtoBDA
-    jmp     SHORT Int13h_Leave
-
-ALIGN JUMP_ALIGN
-Int13h_StoreErrorCodeToBDAandPopDSDIandReturn:
-    call    HError_StoreBiosErrorCodeFromAHtoBDA
-    jmp     SHORT Int13h_PopDiDsAndReturn
-
-ALIGN JUMP_ALIGN
-Int13h_StoreErrorCodeToBDAandPopXRegsAndReturn:
-    call    HError_StoreBiosErrorCodeFromAHtoBDA
+    call    DriveXlate_WhenLeavingInt13hWithReturnValueInDL
+    jmp     SHORT Int13h_LeaveAfterStoringErrorCodeToBDA
+
 ALIGN JUMP_ALIGN
 Int13h_PopXRegsAndReturn:
@@ -202 +190 @@
     pop     cx
     pop     dx
+    ; Fall to Int13h_PopDiDsAndReturn
+
 ALIGN JUMP_ALIGN
 Int13h_PopDiDsAndReturn:
     pushf
     call    DriveXlate_WhenLeavingInt13h
+    ; Fall to Int13h_LeaveAfterStoringErrorCodeToBDA
+
+Int13h_LeaveAfterStoringErrorCodeToBDA:
+    LOAD_BDA_SEGMENT_TO ds, di
+    mov     [BDA.bHDStatus], ah
+    ; Fall to Int13h_Leave
+
 Int13h_Leave:
     popf