source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuCharOut.asm@ 611

Last change on this file since 611 was 526, checked in by krille_n_@…, 12 years ago

Changes:

  • Update of the copyright notices to include the year 2013.
File size: 3.0 KB
Line 
1; Project name : Assembly Library
2; Description : Character out function for printing within menu window.
3
4;
5; XTIDE Universal BIOS and Associated Tools
6; Copyright (C) 2009-2010 by Tomi Tilli, 2011-2013 by XTIDE Universal BIOS Team.
7;
8; This program is free software; you can redistribute it and/or modify
9; it under the terms of the GNU General Public License as published by
10; the Free Software Foundation; either version 2 of the License, or
11; (at your option) any later version.
12;
13; This program is distributed in the hope that it will be useful,
14; but WITHOUT ANY WARRANTY; without even the implied warranty of
15; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16; GNU General Public License for more details.
17; Visit http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18;
19
20
21; Section containing code
22SECTION .text
23
24;--------------------------------------------------------------------
25; MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange
26; MenuCharOut_MenuTeletypeOutput
27; Parameters:
28; AL: Character to output
29; AH: Attribute to output
30; DS: BDA segment (zero)
31; ES:DI: Ptr to video memory where to output
32; [DISPLAY_CONTEXT.wCharOutParam]:
33; Low byte = First column offset (after CR)
34; High byte = Last column offset (when using automatic line change)
35; Returns:
36; DI: Incremented for next character
37; Corrupts registers:
38; AX, DX
39;--------------------------------------------------------------------
40ALIGN MENU_JUMP_ALIGN
41MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange:
42 call CharOutLineSplitter_IsCursorAtTheEndOfTextLine
43 jnc SHORT MenuCharOut_MenuTeletypeOutput
44 cmp al, ' '
45 jb SHORT ReturnSinceNoNeedToStartLineWithControlCharacter
46 call CharOutLineSplitter_MovePartialWordToNewTextLine
47 ; Fall to MenuCharOut_MenuTextTeletypeOutputWithAttribute
48
49ALIGN MENU_JUMP_ALIGN
50MenuCharOut_MenuTeletypeOutput:
51 cmp al, CR
52 je SHORT PrintCRandAdjustOffsetForStartOfLine
53 jmp DisplayCharOut_TeletypeOutputWithAttribute
54
55
56;--------------------------------------------------------------------
57; MenuCharOut_PrintLFCRandAdjustOffsetForStartOfLine
58; PrintCRandAdjustOffsetForStartOfLine
59; Parameters:
60; DS: BDA segment (zero)
61; ES:DI: Ptr to cursor location
62; [DISPLAY_CONTEXT.wCharOutParam]:
63; Low byte = First column offset (after CR)
64; High byte = Last column offset (when using automatic line change)
65; Returns:
66; ES:DI: Ptr to beginning of new line
67; Corrupts registers:
68; AX, DX
69;--------------------------------------------------------------------
70ALIGN MENU_JUMP_ALIGN
71MenuCharOut_PrintLFCRandAdjustOffsetForStartOfLine:
72 mov al, LF
73 call DisplayCharOut_BiosTeletypeOutput
74 ; Fall to PrintCRandAdjustOffsetForStartOfLine
75
76ALIGN MENU_JUMP_ALIGN
77PrintCRandAdjustOffsetForStartOfLine:
78 mov al, CR
79 call DisplayCharOut_BiosTeletypeOutput
80 eMOVZX ax, [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.wCharOutParam]
81 add di, ax
82ReturnSinceNoNeedToStartLineWithControlCharacter:
83 ret
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