llvm-mos-sdk
c64.h
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1 // Copyright 2022 LLVM-MOS Project
2 // Licensed under the Apache License, Version 2.0 with LLVM Exceptions.
3 // See https://github.com/llvm-mos/llvm-mos-sdk/blob/main/LICENSE for license
4 // information.
5 
6 // Originally from cc65. Modified from original version.
7 
8 // clang-format off
9 
10 /*****************************************************************************/
11 /* */
12 /* c64.h */
13 /* */
14 /* C64 system-specific definitions */
15 /* */
16 /* */
17 /* */
18 /* (C) 1998-2013 Ullrich von Bassewitz */
19 /* Roemerstrasse 52 */
20 /* D-70794 Filderstadt */
21 /* EMail: uz@cc65.org */
22 /* */
23 /* */
24 /* This software is provided 'as-is', without any expressed or implied */
25 /* warranty. In no event will the authors be held liable for any damages */
26 /* arising from the use of this software. */
27 /* */
28 /* Permission is granted to anyone to use this software for any purpose, */
29 /* including commercial applications, and to alter it and redistribute it */
30 /* freely, subject to the following restrictions: */
31 /* */
32 /* 1. The origin of this software must not be misrepresented; you must not */
33 /* claim that you wrote the original software. If you use this software */
34 /* in a product, an acknowledgment in the product documentation would be */
35 /* appreciated but is not required. */
36 /* 2. Altered source versions must be plainly marked as such, and must not */
37 /* be misrepresented as being the original software. */
38 /* 3. This notice may not be removed or altered from any source */
39 /* distribution. */
40 /* */
41 /*****************************************************************************/
42 
43 
44 
45 #ifndef _C64_H
46 #define _C64_H
47 
48 
49 
50 /* Check for errors */
51 #if !defined(__C64__)
52 # error This module may only be used when compiling for the C64!
53 #endif
54 
55 
56 
57 /*****************************************************************************/
58 /* Data */
59 /*****************************************************************************/
60 
61 
62 
63 /* Additional key defines */
64 #define CH_F1 133
65 #define CH_F2 137
66 #define CH_F3 134
67 #define CH_F4 138
68 #define CH_F5 135
69 #define CH_F6 139
70 #define CH_F7 136
71 #define CH_F8 140
72 
73 /* Color defines */
74 #define COLOR_BLACK 0x00
75 #define COLOR_WHITE 0x01
76 #define COLOR_RED 0x02
77 #define COLOR_CYAN 0x03
78 #define COLOR_PURPLE 0x04
79 #define COLOR_GREEN 0x05
80 #define COLOR_BLUE 0x06
81 #define COLOR_YELLOW 0x07
82 #define COLOR_ORANGE 0x08
83 #define COLOR_BROWN 0x09
84 #define COLOR_LIGHTRED 0x0A
85 #define COLOR_GRAY1 0x0B
86 #define COLOR_GRAY2 0x0C
87 #define COLOR_LIGHTGREEN 0x0D
88 #define COLOR_LIGHTBLUE 0x0E
89 #define COLOR_GRAY3 0x0F
90 
91 /* Masks for joy_read */
92 #define JOY_UP_MASK 0x01
93 #define JOY_DOWN_MASK 0x02
94 #define JOY_LEFT_MASK 0x04
95 #define JOY_RIGHT_MASK 0x08
96 #define JOY_BTN_1_MASK 0x10
97 
98 /* Define hardware */
99 #include <_vic2.h>
100 #define VIC (*(volatile struct __vic2*)0xD000)
101 
102 #include <_sid.h>
103 #define SID (*(volatile struct __sid*)0xD400)
104 
105 #include <_6526.h>
106 #define CIA1 (*(volatile struct __6526*)0xDC00)
107 #define CIA2 (*(volatile struct __6526*)0xDD00)
108 
109 /* Define special memory areas */
110 #define COLOR_RAM ((volatile unsigned char*)0xD800)
111 
112 // TODO
113 #if 0
114 /* Return codes for get_ostype */
115 #define C64_OS_US 0xAA /* US version */
116 #define C64_OS_PET64 0x64 /* PET 64 */
117 #define C64_OS_SX64 0x43 /* SX-64 */
118 #define C64_EU_NEW 0x03
119 #define C64_EU_OLD 0x00
120 #define C64_DTV 0xFF /* C64 DTV */
121 
122 
123 
124 /*****************************************************************************/
125 /* Code */
126 /*****************************************************************************/
127 
128 
129 
130 unsigned char get_ostype (void);
131 /* Get the ROM version. Returns one of the C64_OS_xxx codes. */
132 #endif
133 
134 
135 
136 /* End of c64.h */
137 #endif
get_ostype
signed char get_ostype(void) __attribute__((leaf))
_sid.h
_6526.h
_vic2.h
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