[41] | 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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[45] | 4 | ; Last update : 28.9.2010 |
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[41] | 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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[44] | 67 | at DISPLAY_LIB.InitializeDisplayContext, dw DisplayContext_Initialize |
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[41] | 68 | |
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[44] | 69 | at DISPLAY_LIB.SetCharacterPointerFromBXAX, dw DisplayContext_SetCharacterPointerFromBXAX |
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[45] | 70 | at DISPLAY_LIB.SetCharOutputFunctionFromAXwithAttribFlagInBL, dw DisplayContext_SetCharOutputFunctionFromAXwithAttribFlagInBL |
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[44] | 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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[41] | 77 | |
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[44] | 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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[41] | 81 | |
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[44] | 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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[41] | 93 | iend |
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