source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/Dialog/DialogDrive.asm@ 609

Last change on this file since 609 was 596, checked in by Krister Nordvall, 6 years ago

Changes:

  • Made changes to HotkeyBar.asm to give the Boot Menu and Hotkey Bar a more consistent look. It will probably seem a bit strange at first to people used to the classic theme.
  • Added the missing parts of USE_NEC_V that should have been committed with the rest in r593.
  • Removed DEFINES_ALL_FEATURES from the BIOS makefile. It didn't work anymore and never really made sense anyway. Added all the official builds to 'make unused' instead which actually uncovered some unused code in the Tiny build.
  • XTIDECFG will no longer load color themes from unrecognized versions of the BIOS.
  • Other fixes in comments and some minor optimizations.
File size: 4.1 KB
Line 
1; Project name : Assembly Library
2; Description : Displays drive dialog.
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; Section containing code
21SECTION .text
22
23;--------------------------------------------------------------------
24; DialogDrive_GetDriveWithIoInDSSI
25; Parameters:
26; DS:SI: Ptr to DRIVE_DIALOG_IO
27; SS:BP: Ptr to parent MENU
28; Returns:
29; Nothing
30; Corrupts registers:
31; AX, BX, CX, DX, DI
32;--------------------------------------------------------------------
33ALIGN JUMP_ALIGN
34DialogDrive_GetDriveWithIoInDSSI:
35 mov bx, DriveEventHandler
36 mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], TRUE
37 jmp Dialog_DisplayWithDialogInputInDSSIandHandlerInBX
38
39
40;--------------------------------------------------------------------
41; DriveEventHandler
42; Common parameters for all events:
43; BX: Menu event (anything from MENUEVENT struct)
44; SS:BP: Ptr to DIALOG
45; Common return values for all events:
46; CF: Set if event processed
47; Cleared if event not processed
48; Corrupts registers:
49; All
50;--------------------------------------------------------------------
51ALIGN JUMP_ALIGN
52DriveEventHandler:
53 jmp [cs:bx+.rgfnEventHandlers]
54
55
56ALIGN JUMP_ALIGN
57.InitializeMenuinitFromDSSI:
58 xor ax, ax
59 call Dialog_EventInitializeMenuinitFromDSSIforSingleItemWithHighlightedItemInAX
60 call Drive_GetFlagsForAvailableDrivesToDXAX
61 mov [bp+MENU.dwUserData], ax
62 mov [bp+MENU.dwUserData+2], dx
63
64 call Bit_GetSetCountToCXfromDXAX
65 mov [bp+MENUINIT.wItems], cx
66
67 dec cx ; Items initialized to one. Ignore it.
68 add cl, [bp+MENUINIT.bHeight]
69 CALL_DISPLAY_LIBRARY GetColumnsToALandRowsToAH
70 MIN_U cl, ah
71 mov [bp+MENUINIT.bHeight], cl
72 ret
73
74
75ALIGN JUMP_ALIGN
76.ItemSelectedFromCX:
77 call ConvertDriveLetterToBLfromItemIndexInCX
78 lds si, [bp+DIALOG.fpDialogIO]
79 mov BYTE [si+DRIVE_DIALOG_IO.bUserCancellation], FALSE
80 mov [si+DRIVE_DIALOG_IO.cReturnDriveLetter], bl
81 sub bl, 'A'
82 mov [si+DRIVE_DIALOG_IO.bReturnDriveNumber], bl
83 jmp MenuInit_CloseMenuWindow
84
85
86ALIGN JUMP_ALIGN
87.RefreshItemFromCX:
88 push bp
89
90 call ConvertDriveLetterToBLfromItemIndexInCX
91 mov bp, sp
92 push bx
93 mov si, g_szDriveFormat
94 CALL_DISPLAY_LIBRARY FormatNullTerminatedStringFromCSSI
95
96 pop bp
97 stc
98 ret
99
100
101.rgfnEventHandlers:
102istruc MENUEVENT
103 at MENUEVENT.InitializeMenuinitFromDSSI, dw .InitializeMenuinitFromDSSI
104 at MENUEVENT.ExitMenu, dw Dialog_EventExitMenu
105 at MENUEVENT.IdleProcessing, dw Dialog_EventNotHandled
106 at MENUEVENT.ItemHighlightedFromCX, dw Dialog_EventNotHandled
107 at MENUEVENT.ItemSelectedFromCX, dw .ItemSelectedFromCX
108 at MENUEVENT.KeyStrokeInAX, dw Dialog_EventNotHandled
109 at MENUEVENT.RefreshTitle, dw Dialog_EventRefreshTitle
110 at MENUEVENT.RefreshInformation, dw Dialog_EventRefreshInformation
111 at MENUEVENT.RefreshItemFromCX, dw .RefreshItemFromCX
112iend
113
114
115;--------------------------------------------------------------------
116; ConvertDriveLetterToBLfromItemIndexInCX
117; Parameters:
118; CX: Item index
119; SS:BP: Ptr to DIALOG
120; Returns:
121; BL: Drive letter
122; Corrupts registers:
123; AX, CX, DX
124;--------------------------------------------------------------------
125ALIGN JUMP_ALIGN
126ConvertDriveLetterToBLfromItemIndexInCX:
127 inc cx ; Index to count
128 mov bl, 'A'-1
129 mov ax, [bp+MENU.dwUserData]
130 mov dx, [bp+MENU.dwUserData+2]
131ALIGN JUMP_ALIGN
132.CheckNextBit:
133 inc bx ; Increment drive letter
134 shr dx, 1
135 rcr ax, 1
136 jnc SHORT .CheckNextBit
137 loop .CheckNextBit
138 ret
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