source: xtideuniversalbios/trunk/Assembly_Library/Inc/Display.inc@ 156

Last change on this file since 156 was 134, checked in by Tomi Tilli, 14 years ago

Changes to Assembly Library:

  • Excluded some format specifiers and related printing functions not used by XTIDE Universal BIOS.
File size: 8.9 KB
RevLine 
[41]1; Project name : AssemblyLibrary
2; Description : Defines for display library.
3%ifndef DISPLAY_INC
4%define DISPLAY_INC
5
6;--------------------------------------------------------------------
7; Display Library users need to use this macro since it will provide
8; compatibility with future library versions.
9;
10; CALL_DISPLAY_LIBRARY
11; Parameters:
12; %1: Function to call (functionName from DISPLAY_LIB)
13; Registers: Depends on function to call
14; Returns:
15; Depends on function to call
16; Corrupts registers:
17; AX (unless used as a return register), DI
18;--------------------------------------------------------------------
19%macro CALL_DISPLAY_LIBRARY 1
20 %ifidn %1, PushDisplayContext
21 call DisplayContext_Push
22 %elifidn %1, PopDisplayContext
23 call DisplayContext_Pop
[52]24 %elifidn %1, PrepareOffScreenBufferInESBXwithLengthInCX
25 call DisplayContext_PrepareOffScreenBufferInESBXwithLengthInCX
[41]26 %else
27 mov di, DISPLAY_LIB.%1
28 call Display_FunctionFromDI
29 %endif
30%endmacro
31
32
33; Display library functions
34struc DISPLAY_LIB
35 .PushDisplayContext:
36 .PopDisplayContext:
[44]37 .InitializeDisplayContext resb 2
[41]38
[133]39%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
[44]40 .SetCharacterPointerFromBXAX resb 2
[133]41%endif
[45]42 .SetCharOutputFunctionFromAXwithAttribFlagInBL resb 2
[44]43 .SetCharacterOutputParameterFromAX resb 2
44 .SetCharacterAttributeFromAL resb 2
45 .SetCursorShapeFromAX resb 2
46 .SetCursorCoordinatesFromAX resb 2
47 .SetNewPageFromAL resb 2
48 .SynchronizeDisplayContextToHardware resb 2
[41]49
[133]50%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
[44]51 .GetCharacterPointerToBXAX resb 2
[133]52%endif
[44]53 .GetSoftwareCoordinatesToAX resb 2
54 .GetColumnsToALandRowsToAH resb 2
[41]55
[44]56 .FormatNullTerminatedStringFromCSSI resb 2
[134]57%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
[44]58 .PrintSignedWordFromAXWithBaseInBX resb 2
[134]59%endif
[44]60 .PrintWordFromAXwithBaseInBX resb 2
61 .PrintCharBufferFromBXSIwithLengthInCX resb 2
62 .PrintNullTerminatedStringFromBXSI resb 2
63 .PrintNullTerminatedStringFromCSSI resb 2
64 .PrintRepeatedCharacterFromALwithCountInCX resb 2
65 .PrintCharacterFromAL resb 2
66 .PrintNewlineCharacters resb 2
[134]67%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
[44]68 .ClearAreaWithHeightInAHandWidthInAL resb 2
[134]69%endif
[67]70 .ClearScreenWithCharInALandAttrInAH resb 2
[41]71endstruc
72
[44]73; Attribute flags for DISPLAY_LIB.SetCharacterOutputFunctionFromAXwithAttributeFlagInDL
74ATTRIBUTES_NOT_USED EQU 0
75ATTRIBUTES_ARE_USED EQU FLG_CONTEXT_ATTRIBUTES
76
77; Character output functions for DISPLAY_LIB.SetCharacterOutputFunctionFromAXwithAttributeFlagInDL
[41]78TELETYPE_OUTPUT_WITH_ATTRIBUTE EQU DisplayCharOut_TeletypeOutputWithAttribute
79TELETYPE_OUTPUT_WITHOUT_ATTRIBUTE EQU DisplayCharOut_TeletypeOutput
80TELETYPE_OUTPUT_USING_BIOS EQU DisplayCharOut_BiosTeletypeOutput
81FAST_OUTPUT_WITH_ATTRIBUTE_ONLY EQU DisplayCharOut_Attribute
82FAST_OUTPUT_WITH_CHAR_ONLY EQU DisplayCharOut_Character
83FAST_OUTPUT_WITH_CHAR_AND_ATTRIBUTE EQU DisplayCharOut_CharacterWithAttribute
84BUFFER_OUTPUT_WITH_CHAR_ONLY EQU DisplayCharOut_WriteCharacterToBuffer
85
86DEFAULT_CHARACTER_OUTPUT EQU TELETYPE_OUTPUT_WITH_ATTRIBUTE
87
88
89struc VIDEO_BDA
90 resb 449h
91 .bMode resb 1 ; 0:449h, Video, Mode
92 .wColumns resb 2 ; 0:44Ah, Video, Number of columns
93 .wBytesPerPage resb 2 ; 0:44Ch, Video, Total number of bytes per page
94 .wPageOffset resb 2 ; 0:44Eh, Video, Current page offset
95 .rgwCursors resb 4 ; 0:450h, Video, Cursor position, pages 0...1
96 .displayContext resb 12 ; Our own display context (normally cursors for pages 2...7)
97 .wCursorShape resb 2 ; 0:460h, Video, Cursor shape
98 .bActivePage resb 1 ; 0:462h, Video, Active display page
99 .wVideoPort resb 2 ; 0:463h, Video, I/O Port number base
100 .bInternalModeReg resb 1 ; 0:465h, Video, Internal mode register
101 .bColorPalette resb 1 ; 0:466h, Video, Color palette
102endstruc
103
104struc DISPLAY_CONTEXT
105 .fpCursorPosition resb 4 ; Far pointer to cursor position in video memory
106 .fnCharOut resb 2 ; Function to draw character with
107 .wCharOutParam resb 2 ; User parameter for custom character output function
108 .wCursorShape resb 2 ; Current cursor shape
109 .bAttribute resb 1 ; Selected character attribute
[44]110 .bFlags resb 1 ; Display context flags
[41]111endstruc
112
[44]113; Display context flags
114FLG_CONTEXT_ATTRIBUTES EQU (1<<0) ; Character output function uses attributes
[50]115FLG_CONTEXT_CGA EQU (1<<1) ; CGA detected so prevent CGA snow
[41]116
[44]117
[41]118; Text mode character attribute byte bits for CGA+ (color adapters)
119FLG_COLOR_FORE_BLUE EQU (1<<0)
120FLG_COLOR_FORE_GREEN EQU (1<<1)
121FLG_COLOR_FORE_RED EQU (1<<2)
122FLG_COLOR_FORE_INTENSITY EQU (1<<3)
123FLG_COLOR_FORE_FONT_B EQU (1<<3) ; Select font set B (if available, EGA+)
124FLG_COLOR_BACK_BLUE EQU (1<<4)
125FLG_COLOR_BACK_GREEN EQU (1<<5)
126FLG_COLOR_BACK_RED EQU (1<<6)
127FLG_COLOR_BACK_INTENSITY EQU (1<<7) ; Intensity when blinking is disabled
128FLG_COLOR_BLINK EQU (1<<7) ; Blinking color when enabled (enabled by default)
129
130; CGA colors
131%define COLOR_ATTRIBUTE(foreground, background) ( (foreground) | ((background)<<4) )
132COLOR_BLACK EQU 0
133COLOR_BLUE EQU 1
134COLOR_GREEN EQU 2
135COLOR_CYAN EQU 3
136COLOR_RED EQU 4
137COLOR_MAGENTA EQU 5
138COLOR_BROWN EQU 6
139COLOR_WHITE EQU 7 ; Last background color if blinking enabled
140COLOR_GRAY EQU 8
141COLOR_LIGHT_BLUE EQU 9
142COLOR_LIGHT_GREEN EQU 10
143COLOR_LIGHT_CYAN EQU 11
144COLOR_LIGHT_RED EQU 12
145COLOR_LIGHT_MAGENTA EQU 13
146COLOR_YELLOW EQU 14
147COLOR_BRIGHT_WHITE EQU 15
148
149
150; Text mode character attribute byte bits for MDA (monochrome adapters)
151; (attributes 00h, 08h, 80h, 88h, 70h, 78h, F0h and F8h are exceptions)
152FLG_MONO_UNDERLINE EQU (1<<1)
153FLG_MONO_INTENSITY EQU (1<<3)
154FLG_MONO_BLINK EQU (1<<7)
155
156; Text mode character attribute bytes for MDA/Hercules (monochrome adapters)
157; *Not displayed on some monitors
158MONO_HIDDEN EQU 00h ; Not displayed (same for 08h, 80h and 88h)
159MONO_UNDERLINE EQU 01h ; Underlined
160MONO_NORMAL EQU 07h ; Normal (white on black)
161MONO_BRIGHT_UNDERLINE EQU 09h ; High intensity, underlined
162MONO_BRIGHT EQU 0Fh ; High intensity
163MONO_REVERSE EQU 70h ; Reverse video (black on white)
164MONO_REVERSE_DARK EQU 78h ; (dark green on green)
165MONO_BLINK EQU 87h ; Blinking white on black*
166MONO_BRIGHT_BLINK EQU 8Fh ; Blinking high intensity*
167MONO_REVERSE_BLINK EQU 0F0h ; Blinking reverse video
168MONO_REVERSE_DARK_BLINK EQU 0F8h ; (blinking dark green on green)
169
170
171; Cursor position macro for DX register
172%define CURSOR_XY(x, y) ( (x) | ((y)<<8) )
173
174; Cursor shapes
175CURSOR_NORMAL EQU 0607h ; Two line cursor near or at the bottom of cell
176CURSOR_HIDDEN EQU 2000h
177
178
179; Display modes
180CGA_TEXT_MODE_BW40 EQU 0 ; Applications should use...
181CGA_TEXT_MODE_CO40 EQU 1
182CGA_TEXT_MODE_BW80 EQU 2 ; ..black, white and bright white attributes only
183CGA_TEXT_MODE_CO80 EQU 3
184MDA_TEXT_MODE EQU 7 ; Real monochrome attributes available
185
186
187; Display segments
188COLOR_TEXT_SEGMENT EQU 0B800h ; Text modes 0...3 (CGA+)
189MONO_TEXT_SEGMENT EQU 0B000h ; Text mode 7 (MDA, Hercules)
190
[48]191OFFSET_TO_CGA_STATUS_REGISTER EQU 6 ; Base port 3D4h + 6 = 3DAh
192CGA_STATUS_REGISTER EQU 3DAh
[41]193
[48]194
[41]195; Control characters for teletype output
196NULL EQU 00h
197SOH EQU 01h ; Start of heading
198STX EQU 02h ; Start of text
199BELL EQU 07h ; Bell
200BS EQU 08h ; Backspace
201TAB EQU 09h ; Horizontal TAB
202LF EQU 0Ah ; Line feed (newline)
203CR EQU 0Dh ; Carriage return
204ESC EQU 1Bh ; Escape
205
206; Non ASCII characters (code page 437)
[91]207QUOTATION_MARK EQU 34
[41]208DOUBLE_TOP_RIGHT_CORNER EQU 187
209DOUBLE_TOP_LEFT_CORNER EQU 201
210DOUBLE_BOTTOM_RIGHT_CORNER EQU 188
211DOUBLE_BOTTOM_LEFT_CORNER EQU 200
212DOUBLE_VERTICAL EQU 186
213DOUBLE_HORIZONTAL EQU 205
214DOUBLE_VERTICAL_TO_RIGHT_SINGLE EQU 199
215DOUBLE_VERTICAL_TO_LEFT_SINGLE EQU 182
216DOUBLE_LEFT_HORIZONTAL_TO_SINGLE_VERTICAL EQU 181
217DOUBLE_RIGHT_HORIZONTAL_TO_SINGLE_VERTICAL EQU 198
[85]218SINGLE_VERTICAL EQU 179
[41]219SINGLE_HORIZONTAL EQU 196
220SINGLE_LEFT_HORIZONTAL_TO_VERTICAL EQU 180
221SINGLE_RIGHT_HORIZONTAL_TO_VERTICAL EQU 195
222ANGLE_QUOTE_LEFT EQU 174
223ANGLE_QUOTE_RIGHT EQU 175
[44]224BLOCK_MOSTLY_BACKGROUND EQU 176
225BLOCK_EVEN_BACKGROUND_AND_FOREGROUND EQU 177
226BLOCK_MOSTLY_FOREGROUND EQU 178
227BLOCK_FULL_FOREGROUND EQU 219
[91]228ONE_HALF EQU 171
229ONE_QUARTER EQU 172
[41]230
231
[44]232; Background character for clearing screen
233%ifndef SCREEN_BACKGROUND_CHARACTER
234 %define SCREEN_BACKGROUND_CHARACTER BLOCK_MOSTLY_BACKGROUND
235%endif
236%ifndef SCREEN_BACKGROUND_ATTRIBUTE
237 %define SCREEN_BACKGROUND_ATTRIBUTE MONO_NORMAL
238%endif
[67]239%define SCREEN_BACKGROUND_CHARACTER_AND_ATTRIBUTE (SCREEN_BACKGROUND_CHARACTER | (SCREEN_BACKGROUND_ATTRIBUTE<<8))
240%define DOS_BACKGROUND_CHARACTER_AND_ATTRIBUTE (' ' | (MONO_NORMAL<<8))
[44]241
[41]242%endif ; DISPLAY_INC
Note: See TracBrowser for help on using the repository browser.