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cc65/asminc/mouse-kernel.inc
cuz c1a38ce8f4 Fixed a problem in mouse_load_driver: The driver was not removed from memory
when the load failed.


git-svn-id: svn://svn.cc65.org/cc65/trunk@3748 b7a2c559-68d2-44c3-8de9-860c34a00d81
2006-06-04 09:48:14 +00:00

171 lines
6.8 KiB
PHP

;/*****************************************************************************/
;/* */
;/* mouse-kernel.inc */
;/* */
;/* Mouse API */
;/* */
;/* */
;/* */
;/* (C) 2003-2006 Ullrich von Bassewitz */
;/* Römerstraße 52 */
;/* D-70794 Filderstadt */
;/* EMail: uz@cc65.org */
;/* */
;/* */
;/* */
;/* */
;/* This software is provided 'as-is', without any expressed or implied */
;/* warranty. In no event will the authors be held liable for any damages */
;/* arising from the use of this software. */
;/* */
;/* Permission is granted to anyone to use this software for any purpose, */
;/* including commercial applications, and to alter it and redistribute it */
;/* freely, subject to the following restrictions: */
;/* */
;/* 1. The origin of this software must not be misrepresented; you must not */
;/* claim that you wrote the original software. If you use this software */
;/* in a product, an acknowledgment in the product documentation would be */
;/* appreciated but is not required. */
;/* 2. Altered source versions must be plainly marked as such, and must not */
;/* be misrepresented as being the original software. */
;/* 3. This notice may not be removed or altered from any source */
;/* distribution. */
;/* */
;/*****************************************************************************/
;------------------------------------------------------------------------------
; Error codes
.enum
MOUSE_ERR_OK ; No error
MOUSE_ERR_NO_DRIVER ; No driver available
MOUSE_ERR_CANNOT_LOAD ; Error loading driver
MOUSE_ERR_INV_DRIVER ; Invalid driver
MOUSE_ERR_NO_DEVICE ; Mouse hardware not found
MOUSE_ERR_INV_IOCTL ; Invalid ioctl code
MOUSE_ERR_COUNT ; Special: Number of error codes
.endenum
;------------------------------------------------------------------------------
; The driver header
.struct MOUSE_HDR
ID .byte 3 ; Contains 0x6D, 0x6F, 0x75 ("mou")
VERSION .byte 1 ; Interface version
JUMPTAB .struct
INSTALL .addr
UNINSTALL .addr
HIDE .addr
SHOW .addr
BOX .addr
MOVE .addr
BUTTONS .addr
POS .addr
INFO .addr
IOCTL .addr
IRQ .addr
.endstruct
FLAGS .byte ; Mouse driver flags
CALLBACKS .struct ; Jump instructions
.byte ; JMP opcode
CHIDE .addr ; Jump address
.byte
CSHOW .addr
.byte
CMOVEX .addr
.byte
CMOVEY .addr
.endstruct
.endstruct
;------------------------------------------------------------------------------
; The mouse callback structure
.struct MOUSE_CALLBACKS
HIDE .addr ; Hide the mouse cursor
SHOW .addr ; Show the mouse cursor
MOVEX .addr ; Move the mouse cursor
MOVEY .addr ; Dito for Y
.endstruct
;------------------------------------------------------------------------------
; The mouse API version, stored in MOUSE_HDR::VERSION
MOUSE_API_VERSION = $01
;------------------------------------------------------------------------------
; Bitmapped mouse driver flags, stored in MOUSE_HDR::FLAGS.
; Note: If neither of MOUSE_FLAG_XXX_IRQ is set, no interrupts are supplied
; to the driver. If one of the bits is set, the interrupt vector MUST be
; valid.
; Beware: Some of the bits are tested using the BIT instruction, so do not
; change the values without checking the code!
MOUSE_FLAG_EARLY_IRQ = $40 ; Enable IRQ *before* calling INSTALL
MOUSE_FLAG_LATE_IRQ = $80 ; Enable IRQ *after* calling INSTALL
;------------------------------------------------------------------------------
; Mouse button definitions
MOUSE_BTN_LEFT = $10
MOUSE_BTN_RIGHT = $01
;------------------------------------------------------------------------------
; Structures used to return data from the mouse driver
.struct MOUSE_POS
XCOORD .word
YCOORD .word
.endstruct
.struct MOUSE_INFO
POS .tag MOUSE_POS
BUTTONS .byte
.endstruct
;------------------------------------------------------------------------------
; Variables
.global _mouse_drv ; Pointer to driver
.global _mouse_hidden ; Counter, 0 = mouse is visible
;------------------------------------------------------------------------------
; C callable functions
.global _mouse_load_driver
.global _mouse_unload
.global _mouse_install
.global _mouse_uninstall
.global _mouse_geterrormsg
.global _mouse_hide
.global _mouse_show
.global _mouse_box
.global _mouse_move
.global _mouse_buttons
.global _mouse_pos
.global _mouse_info
.global _mouse_ioctl
.global _mouse_clear_ptr
;------------------------------------------------------------------------------
; Driver entry points (asm callable)
.global mouse_install
.global mouse_uninstall
.global mouse_hide
.global mouse_show
.global mouse_box
.global mouse_move
.global mouse_buttons
.global mouse_pos
.global mouse_info
.global mouse_ioctl