mirror of
https://github.com/cc65/cc65.git
synced 2024-06-15 02:29:32 +00:00
7f52a770d9
So far the joy_masks array allowed several joystick drivers for a single target to each have different joy_read return values. However this meant that every call to joy_read implied an additional joy_masks lookup to post-process the return value. Given that almost all targets only come with a single joystick driver this seems an inappropriate overhead. Therefore now the target header files contain constants matching the return value of the joy_read of the joystick driver(s) on that target. If there indeed are several joystick drivers for a single target they must agree on a common return value for joy_read. In some cases this was alredy the case as there's a "natural" return value for joy_read. However a few joystick drivers need to be adjusted. This may cause some overhead inside the driver. But that is for sure smaller than the overhead introduced by the joy_masks lookup before. !!! ToDo !!! The following three joystick drivers become broken with this commit and need to be adjusted: - atrmj8.s - c64-numpad.s - vic20-stdjoy.s
112 lines
4.2 KiB
C
112 lines
4.2 KiB
C
/*****************************************************************************/
|
|
/* */
|
|
/* vic20.h */
|
|
/* */
|
|
/* vic20 system specific definitions */
|
|
/* */
|
|
/* */
|
|
/* */
|
|
/* (C) 1998-2004 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. */
|
|
/* */
|
|
/*****************************************************************************/
|
|
|
|
|
|
|
|
#ifndef _VIC20_H
|
|
#define _VIC20_H
|
|
|
|
|
|
|
|
/* Check for errors */
|
|
#if !defined(__VIC20__)
|
|
# error This module may only be used when compiling for the Vic20!
|
|
#endif
|
|
|
|
|
|
|
|
/* Additional key defines */
|
|
#define CH_F1 133
|
|
#define CH_F2 137
|
|
#define CH_F3 134
|
|
#define CH_F4 138
|
|
#define CH_F5 135
|
|
#define CH_F6 139
|
|
#define CH_F7 136
|
|
#define CH_F8 140
|
|
|
|
|
|
|
|
/* Color defines */
|
|
#define COLOR_BLACK 0x00
|
|
#define COLOR_WHITE 0x01
|
|
#define COLOR_RED 0x02
|
|
#define COLOR_CYAN 0x03
|
|
#define COLOR_VIOLET 0x04
|
|
#define COLOR_GREEN 0x05
|
|
#define COLOR_BLUE 0x06
|
|
#define COLOR_YELLOW 0x07
|
|
#define COLOR_ORANGE 0x08
|
|
#define COLOR_BROWN 0x09
|
|
#define COLOR_LIGHTRED 0x0A
|
|
#define COLOR_GRAY1 0x0B
|
|
#define COLOR_GRAY2 0x0C
|
|
#define COLOR_LIGHTGREEN 0x0D
|
|
#define COLOR_LIGHTBLUE 0x0E
|
|
#define COLOR_GRAY3 0x0F
|
|
|
|
|
|
|
|
/* Masks for joy_read */
|
|
#define JOY_UP_MASK 0x01
|
|
#define JOY_DOWN_MASK 0x02
|
|
#define JOY_LEFT_MASK 0x04
|
|
#define JOY_RIGHT_MASK 0x08
|
|
#define JOY_BTN_1_MASK 0x10
|
|
|
|
|
|
|
|
/* Define hardware */
|
|
#include <_vic.h>
|
|
#define VIC (*(struct __vic*)0x9000)
|
|
|
|
#include <_6522.h>
|
|
#define VIA1 (*(struct __6522*)0x9110)
|
|
#define VIA2 (*(struct __6522*)0x9120)
|
|
|
|
|
|
|
|
/* Define special memory areas */
|
|
#define COLOR_RAM ((unsigned char*)0x9600)
|
|
|
|
|
|
|
|
/* The addresses of the static drivers */
|
|
extern void vic20_ptvjoy_joy[];
|
|
extern void vic20_stdjoy_joy[]; /* Referred to by joy_static_stddrv[] */
|
|
|
|
|
|
|
|
/* End of vic20.h */
|
|
#endif
|