source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuCharOut.asm@ 372

Last change on this file since 372 was 369, checked in by gregli@…, 13 years ago

Removed align directives for initalization code and added define for align in boot-time calls to the assembly library (defaulting to 1), resulting in a significant savings for the AT and 386 builds. Fixed a bug with switch command line handling in the serial server. Put in CR characters in licesnse.txt, so that it properly displays on Windows. In the configurator, added default values for user supplied CHS and LBA values, defaulting to values within range when those features are enabled. Updated the copyright message in the configurator as the literal word Copyright is important.
File size: 2.3 KB
Line 
1; Project name : Assembly Library
2; Description : Character out function for printing withing menu window.
3
4; Section containing code
5SECTION .text
6
7;--------------------------------------------------------------------
8; MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange
9; MenuCharOut_MenuTeletypeOutput
10; Parameters:
11; AL: Character to output
12; AH: Attribute to output
13; DS: BDA segment (zero)
14; ES:DI: Ptr to video memory where to output
15; [DISPLAY_CONTEXT.wCharOutParam]:
16; Low byte = First column offset (after CR)
17; High byte = Last column offset (when using automatic line change)
18; Returns:
19; DI: Incremented for next character
20; Corrupts registers:
21; AX, DX
22;--------------------------------------------------------------------
23ALIGN MENU_JUMP_ALIGN
24MenuCharOut_MenuTeletypeOutputWithAutomaticLineChange:
25 call CharOutLineSplitter_IsCursorAtTheEndOfTextLine
26 jnc SHORT MenuCharOut_MenuTeletypeOutput
27 cmp al, ' '
28 jb SHORT ReturnSinceNoNeedToStartLineWithControlCharacter
29 call CharOutLineSplitter_MovePartialWordToNewTextLine
30 ; Fall to MenuCharOut_MenuTextTeletypeOutputWithAttribute
31
32ALIGN MENU_JUMP_ALIGN
33MenuCharOut_MenuTeletypeOutput:
34 cmp al, CR
35 je SHORT PrintCRandAdjustOffsetForStartOfLine
36 jmp DisplayCharOut_TeletypeOutputWithAttribute
37
38
39;--------------------------------------------------------------------
40; MenuCharOut_PrintLFCRandAdjustOffsetForStartOfLine
41; PrintCRandAdjustOffsetForStartOfLine
42; Parameters:
43; DS: BDA segment (zero)
44; ES:DI: Ptr to cursor location
45; [DISPLAY_CONTEXT.wCharOutParam]:
46; Low byte = First column offset (after CR)
47; High byte = Last column offset (when using automatic line change)
48; Returns:
49; ES:DI: Ptr to beginning of new line
50; Corrupts registers:
51; AX, DX
52;--------------------------------------------------------------------
53ALIGN MENU_JUMP_ALIGN
54MenuCharOut_PrintLFCRandAdjustOffsetForStartOfLine:
55 mov al, LF
56 call DisplayCharOut_BiosTeletypeOutput
57 ; Fall to PrintCRandAdjustOffsetForStartOfLine
58
59ALIGN MENU_JUMP_ALIGN
60PrintCRandAdjustOffsetForStartOfLine:
61 mov al, CR
62 call DisplayCharOut_BiosTeletypeOutput
63 eMOVZX ax, [VIDEO_BDA.displayContext+DISPLAY_CONTEXT.wCharOutParam]
64 add di, ax
65ReturnSinceNoNeedToStartLineWithControlCharacter:
66 ret
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