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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
/*****************************************************************************/
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/* */
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/* vic20.h */
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/* */
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/* vic20 system specific definitions */
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/* */
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/* */
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/* */
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/* (C) 1998-2004 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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#ifndef _VIC20_H
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#define _VIC20_H
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/* Check for errors */
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#if !defined(__VIC20__)
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# error This module may only be used when compiling for the Vic20!
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#endif
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/* Additional key defines */
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#define CH_F1 133
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#define CH_F2 137
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#define CH_F3 134
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#define CH_F4 138
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#define CH_F5 135
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#define CH_F6 139
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#define CH_F7 136
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#define CH_F8 140
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/* Color defines */
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#define COLOR_BLACK 0x00
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#define COLOR_WHITE 0x01
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#define COLOR_RED 0x02
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#define COLOR_CYAN 0x03
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#define COLOR_VIOLET 0x04
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#define COLOR_GREEN 0x05
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#define COLOR_BLUE 0x06
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#define COLOR_YELLOW 0x07
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#define COLOR_ORANGE 0x08
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#define COLOR_BROWN 0x09
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#define COLOR_LIGHTRED 0x0A
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#define COLOR_GRAY1 0x0B
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#define COLOR_GRAY2 0x0C
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#define COLOR_LIGHTGREEN 0x0D
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#define COLOR_LIGHTBLUE 0x0E
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#define COLOR_GRAY3 0x0F
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/* Masks for joy_read */
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#define JOY_UP_MASK 0x01
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#define JOY_DOWN_MASK 0x02
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#define JOY_LEFT_MASK 0x04
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#define JOY_RIGHT_MASK 0x08
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#define JOY_BTN_1_MASK 0x10
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/* Define hardware */
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#include <_vic.h>
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#define VIC (*(struct __vic*)0x9000)
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#include <_6522.h>
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#define VIA1 (*(struct __6522*)0x9110)
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#define VIA2 (*(struct __6522*)0x9120)
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/* Define special memory areas */
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#define COLOR_RAM ((unsigned char*)0x9600)
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/* The addresses of the static drivers */
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extern void vic20_ptvjoy_joy[];
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extern void vic20_stdjoy_joy[]; /* Referred to by joy_static_stddrv[] */
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/* End of vic20.h */
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#endif
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