Changeset 88 in xtideuniversalbios for trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuEvent.asm

Timestamp:

Jan 27, 2011, 8:14:13 AM (13 years ago)

Author:

aitotat

google:author:

aitotat

Message:

Changes to XTIDE Universal BIOS:

• Now uses new libraries (untested)
• Non-working since code size is too large

File:

• trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuEvent.asm (modified) (3 diffs)

trunk/XTIDE_Universal_BIOS/Src/Boot/BootMenuEvent.asm

@@ -1 @@
-; File name     :   BootMenuEvent.asm
-; Project name  :   IDE BIOS
-; Created date  :   26.3.2010
-; Last update   :   1.4.2010
-; Author        :   Tomi Tilli
+; Project name  :   XTIDE Universal BIOS
 ; Description   :   Boot Menu event handler for menu library callbacks.
 
@@ -9 +5 @@
 SECTION .text
 
+struc ITEM_TYPE_REFRESH
+    .HardDisk           resb    2
+    .FloppyDrive        resb    2
+    .SpecialFunction    resb    2
+endstruc
+
+
 ;--------------------------------------------------------------------
-; Boot Menu event handler.
-;
 ; BootMenuEvent_Handler
-;   Parameters:
-;       BX:     Callback event
-;       CX:     Menuitem index (usually index of selected Menuitem)
-;       DX:     Event parameter (event specific)
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AH:     Event specific or unused. Set to 0 if unused.
-;       AL:     1=Event processed
-;               0=Event not processed (default action if any)
+;   Common parameters for all events:
+;       BX:         Menu event (anything from MENUEVENT struct)
+;       SS:BP:      Menu library handle
+;   Common return values for all events:
+;       CF:         Set if event processed
+;                   Cleared if event not processed
 ;   Corrupts registers:
-;       BX, CX, DX
+;       All
 ;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
 BootMenuEvent_Handler:
-    push    es
-    push    ds
-    push    di
-    push    si
+    cmp     bx, MENUEVENT.RefreshItemFromCX ; Above last supported item?
+    ja      SHORT .EventNotHandled
+    jmp     [bx+.rgfnEventSpecificHandlers]
+.EventNotHandled:
+.IdleProcessing:
+    clc
+    ret
 
-    xor     ax, ax                                  ; Event not processed
-    cmp     bx, BYTE EVNT_MNU_GETDEF                ; Event in jump table?
-    ja      SHORT .Return
-    shl     bx, 1
-    call    [cs:bx+.rgwEventJmp]
-.Return:
-    pop     si
-    pop     di
-    pop     ds
-    pop     es
-    ret
 ALIGN WORD_ALIGN
-.rgwEventJmp:
-    dw      BootMenuEvent_Exit                      ; 0, EVNT_MNU_EXIT (Menu will quit)
-    dw      BootMenuEvent_EventItemSelectionChanged ; 1, EVNT_MMU_SELCHG (Menuitem selection changed (with arrows))
-    dw      BootMenuEvent_EventItemSelected         ; 2, EVNT_MNU_SELSET (Menuitem selected (with Enter))
-    dw      BootMenuEvent_EventKeyPressed           ; 3, EVNT_MNU_KEY (Keyboard key pressed)
-    dw      BootMenuEvent_EventMenuDraw             ; 4, EVNT_MNU_UPD (Menu needs to be updated)
-    dw      BootMenuEvent_EventGetDefaultMenuitem   ; 5, EVNT_MNU_GETDEF (Request menuitem to be selected by default)
+.rgfnEventSpecificHandlers:
+    dw      .InitializeMenuinitFromDSSI
+    dw      .EventCompleted
+    dw      .IdleProcessing
+    dw      .ItemHighlightedFromCX
+    dw      .ItemSelectedFromCX
+    dw      .KeyStrokeInAX
+    dw      BootMenuPrint_TitleStrings
+    dw      .RefreshInformation
+    dw      .RefreshItemFromCX
 
 
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Menu Exit notification (EVNT_MNU_EXIT).
-;
-; BootMenuEvent_Exit
-;   Parameters:
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AH:     1 to cancel exit
-;               0 to allow menu exit
-;       AL:     1 = Event processed
-;   Corrupts registers:
-;       Nothing
-;--------------------------------------------------------------------
+; Parameters:
+;   DS:SI:      Ptr to MENUINIT struct to initialize
+; Returns:
+;   DS:SI:      Ptr to initialized MENUINIT struct
 ALIGN JUMP_ALIGN
-BootMenuEvent_Exit:
-    mov     ax, 1                   ; Event handled
+.InitializeMenuinitFromDSSI:
+    push    ds
+    call    RamVars_GetSegmentToDS
+    call    .GetDefaultMenuitemToDX
+    call    BootMenu_GetMenuitemCountToCX
+    pop     ds
+    mov     [si+MENUINIT.wItems], cx
+    mov     [si+MENUINIT.wHighlightedItem], dx
+    mov     WORD [si+MENUINIT.wTitleAndInfoLines], BOOT_MENU_TITLE_AND_INFO_LINES
+    mov     BYTE [si+MENUINIT.bWidth], BOOT_MENU_WIDTH
+    call    BootMenu_GetHeightToAHwithItemCountInCL
+    mov     [si+MENUINIT.bHeight], ah
+    stc
     ret
 
-
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Menuitem Selection Changed notification (EVNT_MMU_SELCHG).
-;
-; BootMenuEvent_EventItemSelectionChanged
-;   Parameters:
-;       CX:     Index of selected Menuitem
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     1 = Event processed
-;   Corrupts registers:
-;       BX, CX, DX, DI
-;--------------------------------------------------------------------
 ALIGN JUMP_ALIGN
-BootMenuEvent_EventItemSelectionChanged:
-    call    RamVars_GetSegmentToDS
-    call    DriveXlate_Reset
-    call    BootMenu_ConvertMenuitemToDriveOrFunction
-    jc      SHORT BootMenuEvent_UpdateAllMenuitems  ; Selection changed to a function
-    call    DriveXlate_SetDriveToSwap
-    ; Fall to BootMenuEvent_UpdateAllMenuitems
-
-;--------------------------------------------------------------------
-; Redraws all menuitems.
-;
-; BootMenuEvent_UpdateAllMenuitems
-;   Parameters:
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     1 = Event processed
-;   Corrupts registers:
-;       BX, CX, DX
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_UpdateAllMenuitems:
-    mov     cx, -1                  ; Update all items
-    mov     dl, MFL_UPD_ITEM | MFL_UPD_NFO | MFL_UPD_NOCLEAR
-    call    Menu_Invalidate
-    mov     ax, 1                   ; Event handled
-    ret
-
-
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Menuitem Selected notification (EVNT_MNU_SELSET).
-;
-; BootMenuEvent_EventItemSelected
-;   Parameters:
-;       CX:     Index of selected Menuitem
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     1 = Event processed
-;   Corrupts registers:
-;       BX, CX, DX
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_EventItemSelected:
-    call    Menu_Exit               ; Exit from menu
-    mov     ax, 1                   ; Event handled
-    ret
-
-
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Key pressed notification (EVNT_MNU_KEY).
-;
-; BootMenuEvent_EventKeyPressed
-;   Parameters:
-;       CX:     Index of currently selected Menuitem
-;       DL:     ASCII character
-;       DH:     BIOS Scan Code
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     1 = Event processed
-;   Corrupts registers:
-;       BX, CX, DX, DS
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_EventKeyPressed:
-    mov     al, dl                  ; Copy ASCII char to AL
-    sub     al, 'a'-'A'             ; To upper case character
-    cmp     al, 'A'                 ; First possible drive letter?
-    jb      SHORT .Return           ;  If below, return
-    cmp     al, 'Z'                 ; Last possible drive letter?
-    ja      SHORT .Return           ;  If above, return
-    LOAD_BDA_SEGMENT_TO ds, dx
-    mov     [BOOTVARS.bMenuHotkey], al
-    jmp     SHORT BootMenuEvent_EventItemSelected
-.Return:
-    mov     ax, 1
-    ret
-
-
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Menu Update notification (EVNT_MNU_UPD).
-;
-; BootMenuEvent_EventMenuDraw
-;   Parameters:
-;       CX:     Index of Menuitem to update (if MFL_UPD_ITEM set)
-;       DL:     Update flag (only one):
-;                   MFL_UPD_TITLE   Update Menu Title string(s)
-;                   MFL_UPD_NFO     Update Menu Info string(s)
-;                   MFL_UPD_ITEM    Update Menuitem string
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     Was event processed
-;   Corrupts registers:
-;       BX, CX, DX, SI, DI, DS
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_EventMenuDraw:
-    test    dl, MFL_UPD_ITEM        ; Need to update Menuitem?
-    jnz     SHORT BootMenuEvent_DrawMenuitem
-    test    dl, MFL_UPD_NFO         ; Need to update Info String(s)?
-    jnz     SHORT BootMenuEvent_DrawInfo
-    test    dl, MFL_UPD_TITLE       ; Need to update Title String(s)?
-    jnz     SHORT BootMenuEvent_DrawTitle
-    xor     ax, ax
-    ret
-
-;--------------------------------------------------------------------
-; Draws Menuitem string. Cursor is set to a menuitem location.
-;
-; BootMenuEvent_DrawMenuitem
-;   Parameters:
-;       CX:     Index of Menuitem to draw
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     Was event processed
-;   Corrupts registers:
-;       BX, CX, DX, SI, DI, DS, ES
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_DrawMenuitem:
-    call    RamVars_GetSegmentToDS
-    call    BootMenu_ConvertMenuitemToDriveOrFunction
-    jc      SHORT .DrawFunctionItem
-    call    BootMenuPrint_TranslatedDriveNumber
-    test    dl, 80h                 ; Floppy drive?
-    jz      SHORT .DrawFloppyDriveItem
-    jmp     BootMenuPrint_HardDiskMenuitem
-ALIGN JUMP_ALIGN
-.DrawFunctionItem:
-    jmp     BootMenuPrint_FunctionMenuitem
-ALIGN JUMP_ALIGN
-.DrawFloppyDriveItem:
-    jmp     BootMenuPrint_FloppyMenuitem
-
-;--------------------------------------------------------------------
-; Draws information strings. Cursor is set to a first information line.
-;
-; BootMenuEvent_DrawInfo
-;   Parameters:
-;       CX:     Index of selected menuitem
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     Was event processed
-;   Corrupts registers:
-;       BX, CX, DX, SI, DI, DS, ES
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_DrawInfo:
-    call    RamVars_GetSegmentToDS
-    call    BootMenu_ConvertMenuitemToDriveOrFunction
-    jc      SHORT .DrawFunctionInfo
-    test    dl, 80h                 ; Floppy drive?
-    jz      SHORT .DrawFloppyDriveInfo
-    jmp     BootMenuPrint_HardDiskMenuitemInformation
-ALIGN JUMP_ALIGN
-.DrawFunctionInfo:
-    jmp     BootMenuPrint_FunctionMenuitemInformation
-ALIGN JUMP_ALIGN
-.DrawFloppyDriveInfo:
-    jmp     BootMenuPrint_FloppyMenuitemInformation
-
-;--------------------------------------------------------------------
-; Draws title strings. Cursor is set to a first title line.
-;
-; BootMenuEvent_DrawTitle
-;   Parameters:
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     Was event processed
-;   Corrupts registers:
-;       CX, DX, SI
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_DrawTitle:
-    jmp     BootMenuPrint_TitleStrings
-
-
-;--------------------------------------------------------------------
-; Boot Menu event handler.
-; Handles Get Default Menuitem notification (EVNT_MNU_GETDEF).
-;
-; BootMenuEvent_EventGetDefaultMenuitem
-;   Parameters:
-;       SS:BP:  Ptr to MENUVARS
-;   Returns:
-;       AX:     Was event processed
-;       CX:     Index of menuitem to set selected
-;   Corrupts registers:
-;       BX, CX, DX, DI, DS
-;--------------------------------------------------------------------
-ALIGN JUMP_ALIGN
-BootMenuEvent_EventGetDefaultMenuitem:
-    call    RamVars_GetSegmentToDS
+.GetDefaultMenuitemToDX:
     mov     dl, [cs:ROMVARS.bBootDrv]   ; Default boot drive
     call    BootMenu_IsDriveInSystem
@@ -286 +73 @@
     call    DriveXlate_SetDriveToSwap
     call    BootMenu_ConvertDriveToMenuitem
-    mov     ax, 1
+    mov     dx, cx
     ret
 ALIGN JUMP_ALIGN
 .DoNotSetDefaultMenuitem:
-    xor     ax, ax
+    xor     dx, dx                      ; Whatever appears first on boot menu
     ret
+
+
+; Parameters:
+;   CX:         Index of new highlighted item
+;   DX:         Index of previously highlighted item or NO_ITEM_HIGHLIGHTED
+ALIGN JUMP_ALIGN
+.ItemHighlightedFromCX:
+    push    cx
+    push    dx
+    call    RamVars_GetSegmentToDS
+    call    DriveXlate_Reset
+    call    BootMenu_ConvertMenuitemToDriveOrFunction
+    jc      SHORT .UpdatePreviousAndNewMenuitem ; Selection changed to a function
+    call    DriveXlate_SetDriveToSwap
+
+.UpdatePreviousAndNewMenuitem:
+    pop     ax      ; Update previous item
+    CALL_MENU_LIBRARY RefreshItemFromAX
+    pop     ax      ; Update new item
+    CALL_MENU_LIBRARY RefreshItemFromAX
+    CALL_MENU_LIBRARY RefreshInformation
+    stc
+    ret
+
+
+; Parameters:
+;   AL:         ASCII character for the key
+;   AH:         Keyboard library scan code for the key
+ALIGN JUMP_ALIGN
+.KeyStrokeInAX:
+    xor     ah, ah                  ; ASCII drive letter now in AX
+    call    BootMenu_ConvertHotkeyToMenuitem
+    cmp     cx, [bp+MENUINIT.wItems]
+    jae     SHORT .EventNotHandled  ; Invalid key
+    xchg    ax, cx
+    CALL_MENU_LIBRARY HighlightItemFromAX
+    ; Fall to .ItemSelectedFromCX
+
+
+; Parameters:
+;   CX:         Index of selected item
+ALIGN JUMP_ALIGN
+.ItemSelectedFromCX:
+    CALL_MENU_LIBRARY Close
+.EventCompleted:
+    stc
+    ret
+
+
+; Parameters:
+;   CX:         Index of item to refresh
+;   Cursor has been positioned to the beginning of item line
+ALIGN JUMP_ALIGN
+.RefreshItemFromCX:
+    mov     bx, .rgwItemTypeRefresh
+    jmp     SHORT .RefreshItemOrInformationWithJumpTableInCSBX
+
+
+; Parameters:
+;   CX:         Index of highlighted item
+;   Cursor has been positioned to the beginning of first line
+ALIGN JUMP_ALIGN
+.RefreshInformation:
+    mov     bx, .rgwInformationItemTypeRefresh
+    ; Fall to .RefreshItemOrInformationWithJumpTableInCSBX
+
+;--------------------------------------------------------------------
+; RefreshItemOrInformationWithJumpTableInCSBX
+;   Parameters:
+;       CX:     Index of selected menuitem
+;       CS:BX:  Ptr to ITEM_TYPE_REFRESH jump table
+;   Returns:
+;       CF:     set since event processed
+;--------------------------------------------------------------------
+ALIGN JUMP_ALIGN
+.RefreshItemOrInformationWithJumpTableInCSBX:
+    cmp     cl, NO_ITEM_HIGHLIGHTED
+    je      SHORT .EventCompleted
+
+    call    RamVars_GetSegmentToDS
+    call    BootMenu_ConvertMenuitemToDriveOrFunction
+    jc      SHORT .DrawFunction
+    test    dl, 80h                 ; Floppy drive?
+    jz      SHORT .DrawFloppyDrive
+    jmp     [cs:bx+ITEM_TYPE_REFRESH.HardDisk]
+ALIGN JUMP_ALIGN
+.DrawFunction:
+    jmp     [cs:bx+ITEM_TYPE_REFRESH.SpecialFunction]
+ALIGN JUMP_ALIGN
+.DrawFloppyDrive:
+    jmp     [cs:bx+ITEM_TYPE_REFRESH.FloppyDrive]
+
+; Jump tables for .RefreshItemOrInformationWithJumpTableInCSBX
+ALIGN WORD_ALIGN
+.rgwItemTypeRefresh:
+istruc ITEM_TYPE_REFRESH
+    at  ITEM_TYPE_REFRESH.HardDisk,         dw  BootMenuPrint_HardDiskMenuitem
+    at  ITEM_TYPE_REFRESH.FloppyDrive,      dw  BootMenuPrint_FloppyMenuitem
+    at  ITEM_TYPE_REFRESH.SpecialFunction,  dw  BootMenuPrint_FunctionMenuitem
+iend
+.rgwInformationItemTypeRefresh:
+istruc ITEM_TYPE_REFRESH
+    at  ITEM_TYPE_REFRESH.HardDisk,         dw  BootMenuPrint_HardDiskMenuitemInformation
+    at  ITEM_TYPE_REFRESH.FloppyDrive,      dw  BootMenuPrint_FloppyMenuitemInformation
+    at  ITEM_TYPE_REFRESH.SpecialFunction,  dw  BootMenuPrint_ClearInformationArea
+iend