mirror of https://github.com/cc65/cc65.git
New joystick API
git-svn-id: svn://svn.cc65.org/cc65/trunk@1798 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz
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;/*****************************************************************************/
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;/* */
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;/* joy-error.inc */
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;/* */
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;/* Joystick error codes */
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;/* */
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;/* */
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;/* */
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;/* (C) 2002 Ullrich von Bassewitz */
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;/* Wacholderweg 14 */
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;/* D-70597 Stuttgart */
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;/* EMail: uz@musoftware.de */
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;/* */
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;/* */
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;/* This software is provided 'as-is', without any expressed or implied */
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;/* warranty. In no event will the authors be held liable for any damages */
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;/* arising from the use of this software. */
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;/* */
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;/* Permission is granted to anyone to use this software for any purpose, */
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;/* including commercial applications, and to alter it and redistribute it */
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;/* freely, subject to the following restrictions: */
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;/* */
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;/* 1. The origin of this software must not be misrepresented; you must not */
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;/* claim that you wrote the original software. If you use this software */
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;/* in a product, an acknowledgment in the product documentation would be */
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;/* appreciated but is not required. */
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;/* 2. Altered source versions must be plainly marked as such, and must not */
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;/* be misrepresented as being the original software. */
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;/* 3. This notice may not be removed or altered from any source */
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;/* distribution. */
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;/* */
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;/*****************************************************************************/
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; Error codes
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JOY_ERR_OK = 0 ; No error
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JOY_ERR_NO_DRIVER = 1 ; No driver available
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JOY_ERR_CANNOT_LOAD = 2 ; Error loading driver
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JOY_ERR_INV_DRIVER = 3 ; Invalid driver
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JOY_ERR_NO_DEVICE = 4 ; Device (hardware) not found
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@ -0,0 +1,76 @@
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;/*****************************************************************************/
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;/* */
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;/* joy-kernel.inc */
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;/* */
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;/* Internally used joystick functions */
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;/* */
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;/* */
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;/* */
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;/* (C) 2002 Ullrich von Bassewitz */
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;/* Wacholderweg 14 */
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;/* D-70597 Stuttgart */
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;/* EMail: uz@musoftware.de */
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;/* */
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;/* */
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;/* This software is provided 'as-is', without any expressed or implied */
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;/* warranty. In no event will the authors be held liable for any damages */
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;/* arising from the use of this software. */
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;/* */
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;/* Permission is granted to anyone to use this software for any purpose, */
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;/* including commercial applications, and to alter it and redistribute it */
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;/* freely, subject to the following restrictions: */
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;/* */
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;/* 1. The origin of this software must not be misrepresented; you must not */
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;/* claim that you wrote the original software. If you use this software */
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;/* in a product, an acknowledgment in the product documentation would be */
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;/* appreciated but is not required. */
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;/* 2. Altered source versions must be plainly marked as such, and must not */
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;/* be misrepresented as being the original software. */
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;/* 3. This notice may not be removed or altered from any source */
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;/* distribution. */
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;/* */
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;/*****************************************************************************/
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;------------------------------------------------------------------------------
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; Driver header stuff
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JOY_HDR_ID = 0 ; $6A, $6F, $79 ("joy")
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JOY_HDR_VERSION = 3 ; Interface version
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JOY_MASKS = 4 ; Joystick state mask array
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JOY_MASK_COUNT = 8 ; Size of the array
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JOY_HDR_JUMPTAB = 12
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JOY_HDR_INSTALL = JOY_HDR_JUMPTAB+0 ; INSTALL routine
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JOY_HDR_DEINSTALL = JOY_HDR_JUMPTAB+2 ; DEINSTALL routine
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JOY_HDR_COUNT = JOY_HDR_JUMPTAB+4 ; COUNT routine
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JOY_HDR_READ = JOY_HDR_JUMPTAB+6 ; READ routine
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JOY_HDR_JUMPCOUNT = 4 ; Number of jump vectors
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;------------------------------------------------------------------------------
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; Variables
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.global _joy_drv ; Pointer to driver
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;------------------------------------------------------------------------------
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; Driver entry points
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.global joy_install
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.global joy_deinstall
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.global joy_count
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.global joy_read
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;------------------------------------------------------------------------------
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; ASM functions
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.global _joy_install
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.global _joy_deinstall
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.global _joy_count
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.global _joy_read
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@ -6,7 +6,7 @@
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/* */
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/* */
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/* */
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/* (C) 1998-2001 Ullrich von Bassewitz */
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/* (C) 1998-2002 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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@ -38,20 +38,39 @@
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/* Define __JOYSTICK__ for systems that support a joystick */
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#if defined(__ATARI__) || defined(__C16__) || defined(__C64__) || defined(__C128__) || defined(__PLUS4__) || defined(__CBM510__) || defined(__VIC20__)
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# define __JOYSTICK__
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#else
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# error The target system does not support a joystick!
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# endif
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/*****************************************************************************/
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/* Definitions */
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/*****************************************************************************/
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/* Argument for the function */
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/* Error codes */
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#define JOY_ERR_OK 0 /* No error */
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#define JOY_ERR_NO_DRIVER 1 /* No driver available */
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#define JOY_ERR_CANNOT_LOAD 2 /* Error loading driver */
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#define JOY_ERR_INV_DRIVER 3 /* Invalid driver */
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#define JOY_ERR_NO_DEVICE 4 /* Device (hardware) not found */
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/* Argument for the joy_read function */
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#define JOY_1 0
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#define JOY_2 1
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/* The following codes are *indices* into the joy_masks array */
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#define JOY_UP 0
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#define JOY_DOWN 1
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#define JOY_LEFT 2
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#define JOY_RIGHT 3
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#define JOY_FIRE 4
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/* Array of masks used to check the return value of joy_read for a state */
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extern const unsigned char joy_masks[8];
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/* Result codes of the function. The actual code is a bitwise or
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* of one or more of the following values.
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*/
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#if 0
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#if defined(__VIC20__)
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# define JOY_UP 0x02
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# define JOY_DOWN 0x04
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@ -65,11 +84,27 @@
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# define JOY_RIGHT 0x08
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# define JOY_FIRE 0x10
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#endif
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#endif
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unsigned __fastcall__ readjoy (unsigned char joy);
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/* Read the joystick. The argument is one of JOY_1/JOY2 */
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/*****************************************************************************/
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/* Functions */
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/*****************************************************************************/
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unsigned char __fastcall__ joy_load_driver (const char* driver);
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/* Load a joystick driver and return an error code */
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unsigned char __fastcall__ joy_unload (void);
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/* Unload the currently loaded driver. */
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unsigned char __fastcall__ joy_count (void);
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/* Return the number of joysticks supported by the driver */
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unsigned char __fastcall__ joy_read (unsigned char joystick);
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/* Read a particular joystick */
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@ -0,0 +1,94 @@
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/*****************************************************************************/
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/* */
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/* joy-kernel.h */
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/* */
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/* Internally used joystick functions */
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/* */
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/* */
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/* */
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/* (C) 2002 Ullrich von Bassewitz */
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/* Wacholderweg 14 */
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/* D-70597 Stuttgart */
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/* EMail: uz@musoftware.de */
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/* */
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/* */
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/* This software is provided 'as-is', without any expressed or implied */
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/* warranty. In no event will the authors be held liable for any damages */
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/* arising from the use of this software. */
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/* */
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/* Permission is granted to anyone to use this software for any purpose, */
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/* including commercial applications, and to alter it and redistribute it */
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/* freely, subject to the following restrictions: */
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/* */
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/* 1. The origin of this software must not be misrepresented; you must not */
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/* claim that you wrote the original software. If you use this software */
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/* in a product, an acknowledgment in the product documentation would be */
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/* appreciated but is not required. */
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/* 2. Altered source versions must be plainly marked as such, and must not */
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/* be misrepresented as being the original software. */
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/* 3. This notice may not be removed or altered from any source */
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/* distribution. */
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/* */
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/*****************************************************************************/
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#ifndef _JOY_KERNEL_H
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#define _JOY_KERNEL_H
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/*****************************************************************************/
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/* Data */
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/*****************************************************************************/
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/* A structure that describes the header of a joystick driver loaded into
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* memory.
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*/
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typedef struct {
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/* Driver header */
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char id[3]; /* Contains 0x65, 0x6d, 0x64 ("emd") */
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unsigned char version; /* Interface version */
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/* Bitmasks for the joystick states. See joystick.h for indices */
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unsigned char masks[8];
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/* Jump vectors. Note that these are not C callable */
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void* install; /* INSTALL routine */
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void* deinstall; /* DEINSTALL routine */
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void* count; /* COUNT routine */
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void* read; /* READ routine */
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} joy_drv_header;
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/* EM kernel variables */
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extern joy_drv_header* joy_drv; /* Pointer to driver */
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/*****************************************************************************/
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/* Functions */
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/*****************************************************************************/
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unsigned char __fastcall__ joy_install (void* driver);
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/* Install the driver once it is loaded, return an error code. */
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void __fastcall__ joy_deinstall (void);
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/* Deinstall the driver before unloading it */
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/* End of joy-kernel.h */
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#endif
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