unused/bios/mouse.asm

   1 ; THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   2 ; SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   3 ; END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   4 ; ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   5 ; IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   6 ; SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   7 ; FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   8 ; CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
   9 ; AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  10 ; COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  11 ;***************************************************************************
  12 ;***************************************************************************
  13 ;*****                                                                 *****
  14 ;*****                      M O U S E . A S M                          *****
  15 ;*****                                                                 *****
  16 ;***** Contains routines for a mouse interface.                        *****
  17 ;*****                                                                 *****
  18 ;*****                                                                 *****
  19 ;***** PROCEDURES                                                      *****
  20 ;*****                                                                 *****
  21 ;***** VARIABLES                                                       *****
  22 ;*****                                                                 *****
  23 ;*****                                                                 *****
  24 ;***** CONSTANTS                                                       *****
  25 ;*****                                                                 *****
  26 ;*****                                                                 *****
  27 ;***************************************************************************
  28 ;***************************************************************************
  29
  30 .386
  31
  32 ;************************************************************************
  33 ;**************** FLAT MODEL DATA SEGMENT STUFF *************************
  34 ;************************************************************************
  35
  36 _DATA   SEGMENT BYTE PUBLIC USE32 'DATA'
  37
  38 rcsid   db  "$Id: mouse.asm,v 1.1.1.2 2001-01-19 03:33:49 bradleyb Exp $"
  39
  40                 MOUSE_EVENT STRUCT 2
  41                         MouseDX         dw  ?
  42                         MouseDY         dw  ?
  43                         MouseButtons    dw  ?
  44                         MouseFlags      dw  ?
  45                 MOUSE_EVENT ENDS
  46
  47                 NumberOfButtons dw ?
  48
  49                 MyEvent             MOUSE_EVENT < >
  50                 MyEventHandler      dd  0
  51
  52
  53
  54 _DATA   ENDS
  55
  56 DGROUP  GROUP _DATA
  57
  58
  59 ;************************************************************************
  60 ;**************** FLAT MODEL CODE SEGMENT STUFF *************************
  61 ;************************************************************************
  62
  63 _TEXT   SEGMENT BYTE PUBLIC USE32 'CODE'
  64
  65                 ASSUME  ds:_DATA
  66                 ASSUME  cs:_TEXT
  67
  68 PUBLIC  mouse_init_
  69
  70 mouse_init_:
  71
  72                 push    bx
  73                 xor     ax, ax      ; Reset mouse
  74                 int     33h
  75                 mov     NumberOfButtons, bx
  76                 pop     bx
  77                 or      ax, ax
  78                 jnz     present
  79                 jmp     absent
  80
  81
  82 present:
  83                 mov     ax, 0020h   ; Enable driver
  84                 int     33h
  85
  86                 mov     ax, 1
  87                 ret
  88
  89 absent:
  90                 mov     ax, 0
  91                 ret
  92
  93
  94
  95 PUBLIC  mouse_get_pos_
  96
  97 mouse_get_pos_:
  98
  99                 push    eax
 100                 push    ebx
 101                 push    ecx
 102                 push    edx
 103
 104                 push    eax
 105
 106                 mov     ax, 03h     ; Get Mouse Position and Button Status
 107                 int     33h
 108                 ; bx = buttons, cx = x, dx = y
 109
 110                 pop     eax
 111                 mov     [eax], cx
 112                 pop     eax
 113                 mov     [eax], dx
 114                 mov     edx, eax
 115
 116                 pop     ecx
 117                 pop     ebx
 118                 pop     eax
 119
 120                 ret
 121
 122 PUBLIC  mouse_get_delta_
 123
 124 mouse_get_delta_:
 125
 126                 push    eax
 127                 push    ebx
 128                 push    ecx
 129                 push    edx
 130
 131
 132                 push    eax
 133
 134                 mov     eax, 0bh    ; Read Mouse Motion Counters
 135                 int     33h
 136
 137                 pop     eax
 138                 mov     [eax], cx
 139                 pop     eax
 140                 mov     [eax], dx
 141                 mov     edx, eax
 142
 143                 pop     ecx
 144                 pop     ebx
 145                 pop     eax
 146                 ret
 147
 148
 149 PUBLIC  mouse_get_btns_
 150
 151 mouse_get_btns_:
 152
 153                 push    ebx
 154                 push    ecx
 155                 push    edx
 156
 157                 mov     ax, 03h     ; Get Mouse Position and Button Status
 158                 int     33h
 159                 ; bx = buttons, cx = x, dx = y
 160
 161                 movzx   eax, bx
 162
 163                 pop     edx
 164                 pop     ecx
 165                 pop     ebx
 166
 167                 ret
 168
 169
 170 PUBLIC  mouse_close_
 171
 172 mouse_close_:
 173
 174                 push    eax
 175                 push    ebx
 176                 push    es
 177
 178                 mov     ax, 01fh    ; Disable mouse driver
 179                 int     33h
 180
 181                 pop     es
 182                 pop     ebx
 183                 pop     eax
 184
 185                 ret
 186
 187 MyHandler:
 188
 189                 pushad
 190                 push    ds
 191
 192                 push    ax
 193                 mov     ax, DGROUP
 194                 mov     ds, ax
 195                 pop     ax
 196
 197                 mov     MyEvent.MouseDX, cx
 198                 mov     MyEvent.MouseDY, dx
 199                 mov     MyEvent.MouseButtons, bx
 200                 mov     MyEvent.MouseFlags, ax
 201
 202                 mov     eax, offset MyEvent
 203
 204                 call    MyEventHandler
 205
 206                 pop     ds
 207                 popad
 208
 209                 retf
 210
 211 PUBLIC  mouse_set_handler_
 212
 213 mouse_set_handler_:
 214
 215                 push    eax
 216                 push    ebx
 217                 push    ecx
 218                 push    edx
 219                 push    es
 220
 221                 mov     MyEventHandler, edx
 222
 223                 mov     ecx, eax    ; Event flags
 224                 mov     edx, MyHandler
 225                 mov     ax, cs
 226                 mov     es, ax
 227                 mov     ax, 0Ch     ; Set User-defined Mouse Event Handler
 228                 int     33h
 229
 230                 pop     es
 231                 pop     edx
 232                 pop     ecx
 233                 pop     edx
 234                 pop     eax
 235
 236                 ret
 237
 238 PUBLIC  mouse_clear_handler_
 239
 240 mouse_clear_handler_:
 241
 242                 push    eax
 243                 push    ebx
 244                 push    ecx
 245                 push    edx
 246                 push    es
 247
 248                 mov     MyEventHandler, 0
 249
 250                 mov     ecx, 0    ; Event flags
 251                 mov     edx, MyHandler
 252                 mov     ax, cs
 253                 mov     es, ax
 254                 mov     ax, 0Ch     ; Set User-defined Mouse Event Handler
 255                 int     33h
 256
 257                 pop     es
 258                 pop     edx
 259                 pop     ecx
 260                 pop     edx
 261                 pop     eax
 262
 263                 ret
 264
 265
 266 PUBLIC  mouse_set_limits_
 267
 268 mouse_set_limits_:
 269
 270                 ; EAX = minx
 271                 ; EDX = miny
 272                 ; EBX = maxx
 273                 ; ECX = maxy
 274
 275                 push    edx     ; Save Vertical stuff
 276                 push    ecx
 277
 278                 mov     cx, ax
 279                 mov     dx, bx
 280                 mov     ax, 7
 281                 int     33h
 282
 283                 pop     edx
 284                 pop     ecx
 285                 mov     ax, 8
 286                 int     33h
 287
 288                 ret
 289
 290
 291 ;extern void mouse_set_pos( short x, short y);
 292
 293
 294 PUBLIC  mouse_set_pos_
 295
 296 mouse_set_pos_:
 297
 298                 ; EAX = x
 299                 ; EDX = y
 300
 301                 push    ecx
 302
 303                 mov     ecx, eax
 304                 mov     eax, 04h
 305                 int     33h
 306                 pop     ecx
 307
 308
 309                 ret
 310
 311
 312
 313 _TEXT   ENDS
 314
 315
 316                 END