| 1 | ; File name : Display.asm
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| 2 | ; Project name : Assembly Library
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| 3 | ; Created date : 2.7.2010
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| 4 | ; Last update : 28.9.2010
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| 5 | ; Author : Tomi Tilli
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| 6 | ; Description : Display Library functions for CALL_DISPLAY_LIBRARY macro
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| 7 | ; that users should use to make library call.
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| 8 |
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| 9 | ; Section containing code
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| 10 | SECTION .text
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| 11 |
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| 12 | ;--------------------------------------------------------------------
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| 13 | ; DisplayFunctionFromDI
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| 14 | ; Parameters:
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| 15 | ; DI: Function to call (DISPLAY_LIB.functionName)
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| 16 | ; Others: Depends on function to call (DX cannot be parameter)
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| 17 | ; Returns:
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| 18 | ; Depends on function to call
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| 19 | ; Corrupts registers:
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| 20 | ; AX (unless used as a return register), DI
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| 21 | ;--------------------------------------------------------------------
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| 22 | ALIGN JUMP_ALIGN
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| 23 | Display_FunctionFromDI:
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| 24 | push es
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| 25 | push ds
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| 26 | push dx
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| 27 |
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| 28 | cld
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| 29 | LOAD_BDA_SEGMENT_TO ds, dx
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| 30 | mov dx, [cs:di+.rgfnDisplayLibraryFunctions]
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| 31 | les di, [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition]
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| 32 | call dx
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| 33 | mov [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition], di
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| 34 |
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| 35 | pop dx
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| 36 | pop ds
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| 37 | pop es
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| 38 | ret
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| 39 |
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| 40 | ;--------------------------------------------------------------------
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| 41 | ; .FormatNullTerminatedStringFromCSSI
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| 42 | ; Parameters:
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| 43 | ; Same as DisplayPrint_FormattedNullTerminatedStringFromCSSI
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| 44 | ; Returns:
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| 45 | ; Stack variables will be cleaned
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| 46 | ; Corrupts registers:
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| 47 | ; AX
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| 48 | ;--------------------------------------------------------------------
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| 49 | ALIGN JUMP_ALIGN
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| 50 | .FormatNullTerminatedStringFromCSSI:
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| 51 | pop ax ; Discard return address to inside DisplayFunctionFromDI
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| 52 | call DisplayPrint_FormattedNullTerminatedStringFromCSSI
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| 53 | mov [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.fpCursorPosition], di
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| 54 |
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| 55 | pop dx
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| 56 | pop ds
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| 57 | pop es
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| 58 |
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| 59 | pop ax ; Pop return address
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| 60 | mov sp, bp ; Clean stack variables
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| 61 | jmp ax
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| 62 |
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| 63 |
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| 64 | ALIGN WORD_ALIGN
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| 65 | .rgfnDisplayLibraryFunctions:
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| 66 | istruc DISPLAY_LIB
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| 67 | at DISPLAY_LIB.InitializeDisplayContext, dw DisplayContext_Initialize
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| 68 |
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| 69 | at DISPLAY_LIB.SetCharacterPointerFromBXAX, dw DisplayContext_SetCharacterPointerFromBXAX
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| 70 | at DISPLAY_LIB.SetCharOutputFunctionFromAXwithAttribFlagInBL, dw DisplayContext_SetCharOutputFunctionFromAXwithAttribFlagInBL
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| 71 | at DISPLAY_LIB.SetCharacterOutputParameterFromAX, dw DisplayContext_SetCharacterOutputParameterFromAX
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| 72 | at DISPLAY_LIB.SetCharacterAttributeFromAL, dw DisplayContext_SetCharacterAttributeFromAL
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| 73 | at DISPLAY_LIB.SetCursorShapeFromAX, dw DisplayCursor_SetShapeFromAX
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| 74 | at DISPLAY_LIB.SetCursorCoordinatesFromAX, dw DisplayCursor_SetCoordinatesFromAX
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| 75 | at DISPLAY_LIB.SetNewPageFromAL, dw DisplayPage_SetFromAL
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| 76 | at DISPLAY_LIB.SynchronizeDisplayContextToHardware, dw DisplayContext_SynchronizeToHardware
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| 77 |
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| 78 | at DISPLAY_LIB.GetCharacterPointerToBXAX, dw DisplayContext_GetCharacterPointerToBXAX
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| 79 | at DISPLAY_LIB.GetSoftwareCoordinatesToAX, dw DisplayCursor_GetSoftwareCoordinatesToAX
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| 80 | at DISPLAY_LIB.GetColumnsToALandRowsToAH, dw DisplayPage_GetColumnsToALandRowsToAH
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| 81 |
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| 82 | at DISPLAY_LIB.FormatNullTerminatedStringFromCSSI, dw .FormatNullTerminatedStringFromCSSI
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| 83 | at DISPLAY_LIB.PrintSignedWordFromAXWithBaseInBX, dw DisplayPrint_SignedWordFromAXWithBaseInBX
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| 84 | at DISPLAY_LIB.PrintWordFromAXwithBaseInBX, dw DisplayPrint_WordFromAXWithBaseInBX
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| 85 | at DISPLAY_LIB.PrintCharBufferFromBXSIwithLengthInCX, dw DisplayPrint_CharacterBufferFromBXSIwithLengthInCX
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| 86 | at DISPLAY_LIB.PrintNullTerminatedStringFromBXSI, dw DisplayPrint_NullTerminatedStringFromBXSI
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| 87 | at DISPLAY_LIB.PrintNullTerminatedStringFromCSSI, dw DisplayPrint_NullTerminatedStringFromCSSI
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| 88 | at DISPLAY_LIB.PrintRepeatedCharacterFromALwithCountInCX, dw DisplayPrint_RepeatCharacterFromALwithCountInCX
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| 89 | at DISPLAY_LIB.PrintCharacterFromAL, dw DisplayPrint_CharacterFromAL
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| 90 | at DISPLAY_LIB.PrintNewlineCharacters, dw DisplayPrint_Newline
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| 91 | at DISPLAY_LIB.ClearAreaWithHeightInAHandWidthInAL, dw DisplayPrint_ClearAreaWithHeightInAHandWidthInAL
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| 92 | at DISPLAY_LIB.ClearScreen, dw DisplayPrint_ClearScreen
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| 93 | iend
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