git.sur5r.net Git - cc65/blob - include/supervision.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                               supervision.h                               */
   4 /*                                                                           */
   5 /*                     Supervision specific definitions                      */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* 2003 Peter Trauner (trap@utanet.at)                                       */
  10 /*                                                                           */
  11 /*                                                                           */
  12 /* This software is provided "as-is," without any expressed or implied       */
  13 /* warranty.  In no event will the authors be held liable for any damages    */
  14 /* arising from the use of this software.                                    */
  15 /*                                                                           */
  16 /* Permission is granted to anyone to use this software for any purpose,     */
  17 /* including commercial applications, and to alter and redistribute it       */
  18 /* freely, subject to the following restrictions:                            */
  19 /*                                                                           */
  20 /* 1. The origin of this software must not be misrepresented; you must not   */
  21 /*    claim that you wrote the original software.  If you use this software  */
  22 /*    in a product, an acknowledgment, in the product's documentation,       */
  23 /*    would be appreciated, but is not required.                             */
  24 /* 2. Alterred source versions must be marked plainly as such,               */
  25 /*    and must not be misrepresented as being the original software.         */
  26 /* 3. This notice may not be removed or alterred                             */
  27 /*    from any source distribution.                                          */
  28 /*                                                                           */
  29 /*****************************************************************************/
  30
  31
  32
  33 #ifndef _SUPERVISION_H
  34 #define _SUPERVISION_H
  35
  36
  37
  38 /* Check for errors */
  39 #if !defined(__SUPERVISION__)
  40 #  error This module may only be used when compiling for the Supervision!
  41 #endif
  42
  43
  44
  45 /*****************************************************************************/
  46 /*                                   Data                                    */
  47 /*****************************************************************************/
  48
  49
  50
  51 struct __sv_lcd {
  52     unsigned char       width;
  53     unsigned char       height;
  54     unsigned char       xpos;
  55     unsigned char       ypos;
  56 };
  57 #define SV_LCD  (*(struct __sv_lcd*)0x2000)
  58
  59 struct __sv_tone {
  60     unsigned            delay;
  61     unsigned char       control;
  62     unsigned char       timer;
  63 };
  64 #define SV_RIGHT (*(struct __sv_tone*)0x2010)
  65 #define SV_LEFT  (*(struct __sv_tone*)0x2014)
  66
  67 struct __sv_noise {
  68     unsigned char       volume;         /* and frequency */
  69     unsigned char       timer;
  70     unsigned char       control;
  71 };
  72 #define SV_NOISE (*(struct __sv_noise*)0x2028)
  73
  74 struct __io_port {
  75     unsigned char       in;
  76     unsigned char       out;
  77 };
  78 #define IO_PORT  (*(struct __io_port*)0x2021)
  79
  80 struct __sv_dma {
  81     unsigned            start;
  82     unsigned char       size;
  83     unsigned char       control;
  84     unsigned char       on;
  85 };
  86 #define SV_DMA   (*(struct __sv_dma*)0x2018)
  87
  88 #define SV_CONTROL (*(unsigned char*)0x2020)
  89
  90 #define SV_BANK  (*(unsigned char*)0x2026)
  91 #define SV_BANK_COMBINE(nmi,irq_timer,irq_dma,lcd_on, timer_prescale, bank) \
  92         ((nmi)?1:0)|((irq_timer)?2:0)|((irq_dma)?4:0)|((lcd_on)?8:0) \
  93         |((timer_prescale)?0x10:0)|((bank)<<5)
  94
  95 #define SV_VIDEO ((unsigned char*)0x4000)
  96 #define SV_TIMER_COUNT (*(unsigned char*)0x2023)
  97
  98
  99
 100 /* Counters incremented asynchronously!
 101 ** If you want more complex, copy the crt0.s file from the libsrc/supervision
 102 ** directory and code them yourself (in assembler)
 103 */
 104 extern unsigned char sv_nmi_counter;
 105 extern unsigned char sv_timer_irq_counter;
 106 extern unsigned char sv_timer_dma_counter;
 107
 108 /* Masks for joy_read */
 109 #define JOY_UP_MASK     0x08
 110 #define JOY_DOWN_MASK   0x04
 111 #define JOY_LEFT_MASK   0x02
 112 #define JOY_RIGHT_MASK  0x01
 113 #define JOY_BTN_1_MASK  0x20
 114 #define JOY_BTN_2_MASK  0x10
 115 #define JOY_BTN_3_MASK  0x80
 116 #define JOY_BTN_4_MASK  0x40
 117
 118 #define JOY_BTN_A_MASK  JOY_BTN_1_MASK
 119 #define JOY_BTN_B_MASk  JOY_BTN_2_MASK
 120 #define JOY_START_MASK  JOY_BTN_3_MASK
 121 #define JOY_SELECT_MASK JOY_BTN_4_MASK
 122
 123 #define JOY_BTN_A(v)    ((v) & JOY_BTN_A_MASK)
 124 #define JOY_BTN_B(v)    ((v) & JOY_BTN_B_MASK)
 125 #define JOY_START(v)    ((v) & JOY_START_MASK)
 126 #define JOY_SELECT(v)   ((v) & JOY_SELECT_MASK)
 127
 128 /* No support for dynamically loadable drivers */
 129 #define DYN_DRV 0
 130
 131 /* The addresses of the static drivers */
 132 extern void supervision_stdjoy_joy[]; /* Referred to by joy_static_stddrv[] */
 133
 134
 135
 136 /* End of supervision.h */
 137 #endif