source: xtideuniversalbios/trunk/Assembly_Library/Src/Menu/MenuEvent.asm@ 126

Last change on this file since 126 was 104, checked in by Tomi Tilli, 14 years ago

Changes to Assembly Library:

  • Some more optimizations.
  • Moved macros.inc from XTIDE Universal BIOS to Assembly Library.
File size: 5.0 KB
Line 
1; Project name : Assembly Library
2; Description : Functions for initializing menu system.
3
4; Section containing code
5SECTION .text
6
7;--------------------------------------------------------------------
8; MenuEvent_InitializeMenuinit
9; Parameters
10; SS:BP: Ptr to MENU
11; Returns:
12; DS:SI: Ptr to MENU with MENUINIT initialized from user handler
13; CF: Set if event processed
14; Cleared if event not processed
15; Corrupts registers:
16; AX, BX, DX
17;--------------------------------------------------------------------
18ALIGN JUMP_ALIGN
19MenuEvent_InitializeMenuinit:
20 push ss
21 pop ds
22 mov si, bp
23 mov bx, MENUEVENT.InitializeMenuinitFromDSSI
24 jmp SHORT MenuEvent_SendFromBX
25
26
27;--------------------------------------------------------------------
28; MenuEvent_ExitMenu
29; Parameters
30; SS:BP: Ptr to MENU
31; Returns:
32; CF: Set to exit from menu
33; Cleared to cancel exit
34; Corrupts registers:
35; AX, BX, DX
36;--------------------------------------------------------------------
37ALIGN JUMP_ALIGN
38MenuEvent_ExitMenu:
39 mov bx, MENUEVENT.ExitMenu
40 jmp SHORT MenuEvent_SendFromBX
41
42
43;--------------------------------------------------------------------
44; MenuEvent_IdleProcessing
45; Parameters
46; SS:BP: Ptr to MENU
47; Returns:
48; CF: Set if event processed
49; Cleared if event not processed
50; Corrupts registers:
51; AX, BX, DX
52;--------------------------------------------------------------------
53ALIGN JUMP_ALIGN
54MenuEvent_IdleProcessing:
55 mov bx, MENUEVENT.IdleProcessing
56 jmp SHORT MenuEvent_SendFromBX
57
58
59;--------------------------------------------------------------------
60; MenuEvent_RefreshTitle
61; MenuEvent_RefreshInformation
62; Parameters
63; SS:BP: Ptr to MENU
64; Cursor will be positioned to beginning of window
65; Returns:
66; CF: Set if event processed
67; Cleared if event not processed
68; Corrupts registers:
69; AX, CX, BX, DX
70;--------------------------------------------------------------------
71ALIGN JUMP_ALIGN
72MenuEvent_RefreshTitle:
73 mov bx, MENUEVENT.RefreshTitle
74 jmp SHORT LoadHighlightedItemToCXandSendMessageFromBX
75
76ALIGN JUMP_ALIGN
77MenuEvent_RefreshInformation:
78 mov bx, MENUEVENT.RefreshInformation
79LoadHighlightedItemToCXandSendMessageFromBX:
80 mov cx, [bp+MENUINIT.wHighlightedItem]
81 jmp SHORT MenuEvent_SendFromBX
82
83
84;--------------------------------------------------------------------
85; MenuEvent_RefreshItemFromCX
86; Parameters
87; CX: Index of item to refresh
88; SS:BP: Ptr to MENU
89; Cursor has been positioned to the beginning of item line
90; Returns:
91; CF: Set if event processed
92; Cleared if event not processed
93; Corrupts registers:
94; AX, BX, DX
95;--------------------------------------------------------------------
96ALIGN JUMP_ALIGN
97MenuEvent_RefreshItemFromCX:
98 mov bx, MENUEVENT.RefreshItemFromCX
99 jmp SHORT MenuEvent_SendFromBX
100
101
102;--------------------------------------------------------------------
103; MenuEvent_HighlightItemFromCX
104; Parameters
105; CX: Index of item to highlight
106; SS:BP: Ptr to MENU
107; Returns:
108; Nothing
109; Corrupts registers:
110; AX, BX, DX, SI, DI
111;--------------------------------------------------------------------
112ALIGN JUMP_ALIGN
113MenuEvent_HighlightItemFromCX:
114 mov dx, cx
115 xchg dx, [bp+MENUINIT.wHighlightedItem]
116 push dx
117
118 mov bx, MENUEVENT.ItemHighlightedFromCX
119 call MenuEvent_SendFromBX
120
121 pop ax
122 call MenuText_RefreshItemFromAX
123 mov ax, [bp+MENUINIT.wHighlightedItem]
124 jmp MenuText_RefreshItemFromAX
125
126
127;--------------------------------------------------------------------
128; MenuEvent_KeyStrokeInAX
129; Parameters
130; AL: ASCII character for the key
131; AH: Keyboard library scan code for the key
132; SS:BP: Ptr to MENU
133; Returns:
134; CF: Set if event processed
135; Cleared if event not processed
136; Corrupts registers:
137; AX, BX, DX
138;--------------------------------------------------------------------
139ALIGN JUMP_ALIGN
140MenuEvent_KeyStrokeInAX:
141 mov bx, MENUEVENT.KeyStrokeInAX
142 jmp SHORT MenuEvent_SendFromBX
143
144
145;--------------------------------------------------------------------
146; MenuEvent_ItemSelectedFromCX
147; Parameters
148; CX: Index of selected item
149; SS:BP: Ptr to MENU
150; Returns:
151; CF: Set if event processed
152; Cleared if event not processed
153; Corrupts registers:
154; AX, BX, DX
155;--------------------------------------------------------------------
156ALIGN JUMP_ALIGN
157MenuEvent_ItemSelectedFromCX:
158 mov bx, MENUEVENT.ItemSelectedFromCX
159 jmp SHORT MenuEvent_SendFromBX
160
161
162;--------------------------------------------------------------------
163; MenuEvent_SendFromBX
164; Parameters
165; BX: Menu event to send
166; SS:BP: Ptr to MENU
167; Other registers: Event specific parameters
168; Returns:
169; AX, DX: Event specific return values
170; CF: Set if event processed
171; Cleared if event not processed
172; Corrupts registers:
173; BX
174;--------------------------------------------------------------------
175ALIGN JUMP_ALIGN
176MenuEvent_SendFromBX:
177 push es
178 push ds
179 push di
180 push si
181 push cx
182 call [bp+MENU.fnEventHandler]
183 pop cx
184 pop si
185 pop di
186 pop ds
187 pop es
188 ret
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