source: xtideuniversalbios/trunk/Assembly_Library/Inc/Display.inc@ 309

Last change on this file since 309 was 287, checked in by aitotat@…, 13 years ago

Changes to Assembly Library:

  • Hopefully fixed a problem of wrong sized MDA cursor.
  • Some minor improvements.
File size: 9.1 KB
Line 
1; Project name : AssemblyLibrary
2; Description : Defines for display library.
3%ifndef DISPLAY_INC
4%define DISPLAY_INC
5
6%ifndef MODULE_STRINGS_COMPRESSED_PRECOMPRESS
7;--------------------------------------------------------------------
8; Display Library users need to use this macro since it will provide
9; compatibility with future library versions.
10;
11; CALL_DISPLAY_LIBRARY
12; Parameters:
13; %1: Function to call (functionName from DISPLAY_LIB)
14; Registers: Depends on function to call
15; Returns:
16; Depends on function to call
17; Corrupts registers:
18; AX (unless used as a return register), DI
19;--------------------------------------------------------------------
20%macro CALL_DISPLAY_LIBRARY 1
21 %ifidn %1, PushDisplayContext
22 call DisplayContext_Push
23 %elifidn %1, PopDisplayContext
24 call DisplayContext_Pop
25 %elifidn %1, PrepareOffScreenBufferInESBXwithLengthInCX
26 call DisplayContext_PrepareOffScreenBufferInESBXwithLengthInCX
27 %else
28 mov di, %1
29 call Display_FunctionFromDI
30 %endif
31%endmacro
32
33%if 0
34;;;
35;;; struc no longer needed with direct calls to functions
36;;;
37
38; Display library functions
39struc DISPLAY_LIB
40 .PushDisplayContext:
41 .PopDisplayContext:
42 .InitializeDisplayContext resb 2
43
44%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
45 .SetCharacterPointerFromBXAX resb 2
46%endif
47 .SetCharOutputFunctionFromAXwithAttribFlagInBL resb 2
48 .SetCharacterOutputParameterFromAX resb 2
49 .SetCharacterAttributeFromAL resb 2
50 .SetCursorShapeFromAX resb 2
51 .SetCursorCoordinatesFromAX resb 2
52 .SetNewPageFromAL resb 2
53 .SynchronizeDisplayContextToHardware resb 2
54
55%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
56 .GetCharacterPointerToBXAX resb 2
57%endif
58 .GetSoftwareCoordinatesToAX resb 2
59 .GetColumnsToALandRowsToAH resb 2
60
61 .FormatNullTerminatedStringFromCSSI resb 2
62%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
63 .PrintSignedWordFromAXWithBaseInBX resb 2
64%endif
65 .PrintWordFromAXwithBaseInBX resb 2
66 .PrintCharBufferFromBXSIwithLengthInCX resb 2
67 .PrintNullTerminatedStringFromBXSI resb 2
68 .PrintNullTerminatedStringFromCSSI resb 2
69 .PrintRepeatedCharacterFromALwithCountInCX resb 2
70 .PrintCharacterFromAL resb 2
71 .PrintNewlineCharacters resb 2
72%ifndef EXCLUDE_FROM_XTIDE_UNIVERSAL_BIOS
73 .ClearAreaWithHeightInAHandWidthInAL resb 2
74%endif
75 .ClearScreenWithCharInALandAttrInAH resb 2
76endstruc
77%endif
78
79; Attribute flags for DISPLAY_LIB.SetCharacterOutputFunctionFromAXwithAttributeFlagInDL
80ATTRIBUTES_NOT_USED EQU 0
81ATTRIBUTES_ARE_USED EQU FLG_CONTEXT_ATTRIBUTES
82
83; Character output functions for DISPLAY_LIB.SetCharacterOutputFunctionFromAXwithAttributeFlagInDL
84TELETYPE_OUTPUT_WITH_ATTRIBUTE EQU DisplayCharOut_TeletypeOutputWithAttribute
85TELETYPE_OUTPUT_WITHOUT_ATTRIBUTE EQU DisplayCharOut_TeletypeOutput
86TELETYPE_OUTPUT_USING_BIOS EQU DisplayCharOut_BiosTeletypeOutput
87FAST_OUTPUT_WITH_ATTRIBUTE_ONLY EQU DisplayCharOut_Attribute
88FAST_OUTPUT_WITH_CHAR_ONLY EQU DisplayCharOut_Character
89FAST_OUTPUT_WITH_CHAR_AND_ATTRIBUTE EQU DisplayCharOut_CharacterWithAttribute
90BUFFER_OUTPUT_WITH_CHAR_ONLY EQU DisplayCharOut_WriteCharacterToBuffer
91
92DEFAULT_CHARACTER_OUTPUT EQU TELETYPE_OUTPUT_WITH_ATTRIBUTE
93
94
95struc VIDEO_BDA
96 resb 449h
97 .bMode resb 1 ; 0:449h, Video, Mode
98 .wColumns resb 2 ; 0:44Ah, Video, Number of columns
99 .wBytesPerPage resb 2 ; 0:44Ch, Video, Total number of bytes per page
100 .wPageOffset resb 2 ; 0:44Eh, Video, Current page offset
101 .rgwCursors resb 4 ; 0:450h, Video, Cursor position, pages 0...1
102 .displayContext resb 12 ; Our own display context (normally cursors for pages 2...7)
103 .wCursorShape resb 2 ; 0:460h, Video, Cursor shape
104 .bActivePage resb 1 ; 0:462h, Video, Active display page
105 .wVideoPort resb 2 ; 0:463h, Video, I/O Port number base
106 .bInternalModeReg resb 1 ; 0:465h, Video, Internal mode register
107 .bColorPalette resb 1 ; 0:466h, Video, Color palette
108endstruc
109
110struc DISPLAY_CONTEXT
111 .fpCursorPosition resb 4 ; Far pointer to cursor position in video memory
112 .fnCharOut resb 2 ; Function to draw character with
113 .wCharOutParam resb 2 ; User parameter for custom character output function
114 .wCursorShape resb 2 ; Current cursor shape
115 .bAttribute resb 1 ; Selected character attribute
116 .bFlags resb 1 ; Display context flags
117endstruc
118
119; Display context flags
120FLG_CONTEXT_ATTRIBUTES EQU (1<<0) ; Character output function uses attributes
121FLG_CONTEXT_CGA EQU (1<<1) ; CGA detected so prevent CGA snow
122
123
124; Text mode character attribute byte bits for CGA+ (color adapters)
125FLG_COLOR_FORE_BLUE EQU (1<<0)
126FLG_COLOR_FORE_GREEN EQU (1<<1)
127FLG_COLOR_FORE_RED EQU (1<<2)
128FLG_COLOR_FORE_INTENSITY EQU (1<<3)
129FLG_COLOR_FORE_FONT_B EQU (1<<3) ; Select font set B (if available, EGA+)
130FLG_COLOR_BACK_BLUE EQU (1<<4)
131FLG_COLOR_BACK_GREEN EQU (1<<5)
132FLG_COLOR_BACK_RED EQU (1<<6)
133FLG_COLOR_BACK_INTENSITY EQU (1<<7) ; Intensity when blinking is disabled
134FLG_COLOR_BLINK EQU (1<<7) ; Blinking color when enabled (enabled by default)
135
136; CGA colors
137%define COLOR_ATTRIBUTE(foreground, background) ( (foreground) | ((background)<<4) )
138COLOR_BLACK EQU 0
139COLOR_BLUE EQU 1
140COLOR_GREEN EQU 2
141COLOR_CYAN EQU 3
142COLOR_RED EQU 4
143COLOR_MAGENTA EQU 5
144COLOR_BROWN EQU 6
145COLOR_WHITE EQU 7 ; Last background color if blinking enabled
146COLOR_GRAY EQU 8
147COLOR_LIGHT_BLUE EQU 9
148COLOR_LIGHT_GREEN EQU 10
149COLOR_LIGHT_CYAN EQU 11
150COLOR_LIGHT_RED EQU 12
151COLOR_LIGHT_MAGENTA EQU 13
152COLOR_YELLOW EQU 14
153COLOR_BRIGHT_WHITE EQU 15
154
155
156; Text mode character attribute byte bits for MDA (monochrome adapters)
157; (attributes 00h, 08h, 80h, 88h, 70h, 78h, F0h and F8h are exceptions)
158FLG_MONO_UNDERLINE EQU (1<<1)
159FLG_MONO_INTENSITY EQU (1<<3)
160FLG_MONO_BLINK EQU (1<<7)
161
162; Text mode character attribute bytes for MDA/Hercules (monochrome adapters)
163; *Not displayed on some monitors
164MONO_HIDDEN EQU 00h ; Not displayed (same for 08h, 80h and 88h)
165MONO_UNDERLINE EQU 01h ; Underlined
166MONO_NORMAL EQU 07h ; Normal (white on black)
167MONO_BRIGHT_UNDERLINE EQU 09h ; High intensity, underlined
168MONO_BRIGHT EQU 0Fh ; High intensity
169MONO_REVERSE EQU 70h ; Reverse video (black on white)
170MONO_REVERSE_DARK EQU 78h ; (dark green on green)
171MONO_BLINK EQU 87h ; Blinking white on black*
172MONO_BRIGHT_BLINK EQU 8Fh ; Blinking high intensity*
173MONO_REVERSE_BLINK EQU 0F0h ; Blinking reverse video
174MONO_REVERSE_DARK_BLINK EQU 0F8h ; (blinking dark green on green)
175
176
177; Cursor position macro for DX register
178%define CURSOR_XY(x, y) ( (x) | ((y)<<8) )
179
180; Cursor shapes
181CURSOR_NORMAL EQU 0607h ; Two line cursor near or at the bottom of cell (not valid for IBM MDA)
182CURSOR_HIDDEN EQU 2000h
183
184
185; Display modes
186CGA_TEXT_MODE_BW40 EQU 0 ; Applications should use...
187CGA_TEXT_MODE_CO40 EQU 1
188CGA_TEXT_MODE_BW80 EQU 2 ; ..black, white and bright white attributes only
189CGA_TEXT_MODE_CO80 EQU 3
190MDA_TEXT_MODE EQU 7 ; Real monochrome attributes available
191
192
193; Display segments
194COLOR_TEXT_SEGMENT EQU 0B800h ; Text modes 0...3 (CGA+)
195MONO_TEXT_SEGMENT EQU 0B000h ; Text mode 7 (MDA, Hercules)
196
197OFFSET_TO_CGA_STATUS_REGISTER EQU 6 ; Base port 3D4h + 6 = 3DAh
198CGA_STATUS_REGISTER EQU 3DAh
199
200%endif ; MODULE_STRINGS_COMPRESS_PRECOMPRESS
201
202; Control characters for teletype output
203NULL EQU 00h
204SOH EQU 01h ; Start of heading
205STX EQU 02h ; Start of text
206BELL EQU 07h ; Bell
207BS EQU 08h ; Backspace
208TAB EQU 09h ; Horizontal TAB
209LF EQU 0Ah ; Line feed (newline)
210CR EQU 0Dh ; Carriage return
211ESC EQU 1Bh ; Escape
212
213; Non ASCII characters (code page 437)
214BETA EQU 225
215QUOTATION_MARK EQU 34
216DOUBLE_TOP_RIGHT_CORNER EQU 187
217DOUBLE_TOP_LEFT_CORNER EQU 201
218DOUBLE_BOTTOM_RIGHT_CORNER EQU 188
219DOUBLE_BOTTOM_LEFT_CORNER EQU 200
220DOUBLE_VERTICAL EQU 186
221DOUBLE_HORIZONTAL EQU 205
222DOUBLE_VERTICAL_TO_RIGHT_SINGLE EQU 199
223DOUBLE_VERTICAL_TO_LEFT_SINGLE EQU 182
224DOUBLE_LEFT_HORIZONTAL_TO_SINGLE_VERTICAL EQU 181
225DOUBLE_RIGHT_HORIZONTAL_TO_SINGLE_VERTICAL EQU 198
226SINGLE_VERTICAL EQU 179
227SINGLE_HORIZONTAL EQU 196
228SINGLE_LEFT_HORIZONTAL_TO_VERTICAL EQU 180
229SINGLE_RIGHT_HORIZONTAL_TO_VERTICAL EQU 195
230ANGLE_QUOTE_LEFT EQU 174
231ANGLE_QUOTE_RIGHT EQU 175
232BLOCK_MOSTLY_BACKGROUND EQU 176
233BLOCK_EVEN_BACKGROUND_AND_FOREGROUND EQU 177
234BLOCK_MOSTLY_FOREGROUND EQU 178
235BLOCK_FULL_FOREGROUND EQU 219
236ONE_HALF EQU 171
237ONE_QUARTER EQU 172
238
239
240; Background character for clearing screen
241%ifndef SCREEN_BACKGROUND_CHARACTER
242 %define SCREEN_BACKGROUND_CHARACTER BLOCK_MOSTLY_BACKGROUND
243%endif
244%ifndef SCREEN_BACKGROUND_ATTRIBUTE
245 %define SCREEN_BACKGROUND_ATTRIBUTE MONO_NORMAL
246%endif
247%define SCREEN_BACKGROUND_CHARACTER_AND_ATTRIBUTE (SCREEN_BACKGROUND_CHARACTER | (SCREEN_BACKGROUND_ATTRIBUTE<<8))
248%define DOS_BACKGROUND_CHARACTER_AND_ATTRIBUTE (' ' | (MONO_NORMAL<<8))
249
250%endif ; DISPLAY_INC
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