source: xtideuniversalbios/trunk/Assembly_Library/Src/Display/Display.asm@ 178

; Project name  :   Assembly Library
; Description   :   Display Library functions for CALL_DISPLAY_LIBRARY macro
;                   that users should use to make library call.

; Section containing code
SECTION .text

;--------------------------------------------------------------------
; DisplayFunctionFromDI
;   Parameters:
;       DI:     Function to call (DISPLAY_LIB.functionName)
;       Others: Depends on function to call (DX cannot be parameter)
;   Returns:
;       Depends on function to call
;   Corrupts registers:
;       AX (unless used as a return register), DI
;--------------------------------------------------------------------
ALIGN JUMP_ALIGN
Display_FunctionFromDI:
    push    es
    push    ds
    push    dx

    cld
    LOAD_BDA_SEGMENT_TO ds, dx
    mov     dx, di
    les     di, [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition]
    call    dx
    mov     [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition], di

    pop     dx
    pop     ds
    pop     es
    ret

;--------------------------------------------------------------------
; Display_FormatNullTerminatedStringFromCSSI
;   Parameters:
;       Same as DisplayPrint_FormattedNullTerminatedStringFromCSSI
;   Returns:
;       Stack variables will be cleaned
;   Corrupts registers:
;       AX
;--------------------------------------------------------------------
ALIGN JUMP_ALIGN
Display_FormatNullTerminatedStringFromCSSI:
    pop     ax                  ; Discard return address to inside Display_FunctionFromDI
    call    DisplayPrint_FormattedNullTerminatedStringFromCSSI
    mov     [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition], di

    pop     dx
    pop     ds
    pop     es

    pop     ax                  ; Pop return address
    mov     sp, bp              ; Clean stack variables
    jmp     ax

        
%define InitializeDisplayContext                        DisplayContext_Initialize

%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
%define SetCharacterPointerFromBXAX                     DisplayContext_SetCharacterPointerFromBXAX
%endif
%define SetCharOutputFunctionFromAXwithAttribFlagInBL   DisplayContext_SetCharOutputFunctionFromAXwithAttribFlagInBL
%define SetCharacterOutputParameterFromAX               DisplayContext_SetCharacterOutputParameterFromAX
%define SetCharacterAttributeFromAL                     DisplayContext_SetCharacterAttributeFromAL
%define SetCursorShapeFromAX                            DisplayCursor_SetShapeFromAX
%define SetCursorCoordinatesFromAX                      DisplayCursor_SetCoordinatesFromAX
%define SetNewPageFromAL                                DisplayPage_SetFromAL
%define SynchronizeDisplayContextToHardware             DisplayContext_SynchronizeToHardware

%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
%define GetCharacterPointerToBXAX                       DisplayContext_GetCharacterPointerToBXAX
%endif
%define GetSoftwareCoordinatesToAX                      DisplayCursor_GetSoftwareCoordinatesToAX
%define GetColumnsToALandRowsToAH                       DisplayPage_GetColumnsToALandRowsToAH

%define FormatNullTerminatedStringFromCSSI              Display_FormatNullTerminatedStringFromCSSI
%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
%define PrintSignedWordFromAXWithBaseInBX               DisplayPrint_SignedWordFromAXWithBaseInBX
%endif
%define PrintWordFromAXwithBaseInBX                     DisplayPrint_WordFromAXWithBaseInBX
%define PrintCharBufferFromBXSIwithLengthInCX           DisplayPrint_CharacterBufferFromBXSIwithLengthInCX
%define PrintNullTerminatedStringFromBXSI               DisplayPrint_NullTerminatedStringFromBXSI
%define PrintNullTerminatedStringFromCSSI               DisplayPrint_NullTerminatedStringFromCSSI
%define PrintRepeatedCharacterFromALwithCountInCX       DisplayPrint_RepeatCharacterFromALwithCountInCX
%define PrintCharacterFromAL                            DisplayPrint_CharacterFromAL
%define PrintNewlineCharacters                          DisplayPrint_Newline
%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
%define ClearAreaWithHeightInAHandWidthInAL             DisplayPrint_ClearAreaWithHeightInAHandWidthInAL
%endif
%define ClearScreenWithCharInALandAttrInAH              DisplayPrint_ClearScreenWithCharInALandAttributeInAH