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1976d6cd32
All but one joystick drivers didn't use IRQs. Espsecially when the joystick driver kernel was the only .interruptor this meant quite some unnecessary overhead because it pulled in the whole IRQ infrastructure. I was told that the one driver using IRQs (the DXS/HIT-4 Player joystick driver for the C64) can be reworked to not do it. Until this is done that driver is defunct.
84 lines
3.9 KiB
PHP
84 lines
3.9 KiB
PHP
;/*****************************************************************************/
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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) 2002-2006, Ullrich von Bassewitz */
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;/* Römerstraße 52 */
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;/* D-70794 Filderstadt */
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;/* EMail: uz@cc65.org */
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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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.struct JOY_HDR
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ID .byte 3 ; $6A, $6F, $79 ("joy")
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VERSION .byte 1 ; Interface version
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LIBREF .addr ; Library reference
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JUMPTAB .struct
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INSTALL .addr ; INSTALL routine
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UNINSTALL .addr ; UNINSTALL routine
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COUNT .addr ; COUNT routine
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READ .addr ; READ routine
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.endstruct
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.endstruct
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;------------------------------------------------------------------------------
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; The JOY API version, stored in JOY_HDR::VERSION
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JOY_API_VERSION = $05
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;------------------------------------------------------------------------------
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; Variables
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.global _joy_drv ; Pointer to driver
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.global _joy_masks
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;------------------------------------------------------------------------------
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; Driver entry points
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.global joy_install
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.global joy_uninstall
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.global joy_count
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.global joy_read
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;------------------------------------------------------------------------------
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; C callable functions
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.global _joy_load_driver
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.global _joy_unload
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.global _joy_install
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.global _joy_uninstall
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.global _joy_count
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.global _joy_read
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.global _joy_clear_ptr
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