1 /* ======================================================================== */ 2 /* ========================= LICENSING & COPYRIGHT ======================== */ 3 /* ======================================================================== */ 4 /* 5 * MUSASHI 6 * Version 3.4 7 * 8 * A portable Motorola M680x0 processor emulation engine. 9 * Copyright 1998-2001 Karl Stenerud. All rights reserved. 10 * 11 * Permission is hereby granted, free of charge, to any person obtaining a copy 12 * of this software and associated documentation files (the "Software"), to deal 13 * in the Software without restriction, including without limitation the rights 14 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 15 * copies of the Software, and to permit persons to whom the Software is 16 * furnished to do so, subject to the following conditions: 17 * 18 * The above copyright notice and this permission notice shall be included in 19 * all copies or substantial portions of the Software. 20 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 24 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 26 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 27 * THE SOFTWARE. 28 */ 29 30 31 32 #ifndef M68KCONF__HEADER 33 #define M68KCONF__HEADER 34 35 /* Configuration switches. 36 * Use OPT_SPECIFY_HANDLER for configuration options that allow callbacks. 37 * OPT_SPECIFY_HANDLER causes the core to link directly to the function 38 * or macro you specify, rather than using callback functions whose pointer 39 * must be passed in using m68k_set_xxx_callback(). 40 */ 41 #define OPT_OFF 0 42 #define OPT_ON 1 43 #define OPT_SPECIFY_HANDLER 2 44 45 46 /* ======================================================================== */ 47 /* ============================== MAME STUFF ============================== */ 48 /* ======================================================================== */ 49 50 /* If you're compiling this for MAME, only change M68K_COMPILE_FOR_MAME 51 * to OPT_ON and use m68kmame.h to configure the 68k core. 52 */ 53 #ifndef M68K_COMPILE_FOR_MAME 54 #define M68K_COMPILE_FOR_MAME OPT_OFF 55 #endif /* M68K_COMPILE_FOR_MAME */ 56 57 58 #if M68K_COMPILE_FOR_MAME == OPT_OFF 59 60 61 /* ======================================================================== */ 62 /* ============================= CONFIGURATION ============================ */ 63 /* ======================================================================== */ 64 65 /* Turn ON if you want to use the following M68K variants */ 66 #define M68K_EMULATE_010 OPT_OFF 67 #define M68K_EMULATE_EC020 OPT_OFF 68 #define M68K_EMULATE_020 OPT_OFF 69 70 71 /* If ON, the CPU will call m68k_read_immediate_xx() for immediate addressing 72 * and m68k_read_pcrelative_xx() for PC-relative addressing. 73 * If off, all read requests from the CPU will be redirected to m68k_read_xx() 74 */ 75 #define M68K_SEPARATE_READS OPT_OFF 76 77 /* If ON, the CPU will call m68k_write_32_pd() when it executes move.l with a 78 * predecrement destination EA mode instead of m68k_write_32(). 79 * To simulate real 68k behavior, m68k_write_32_pd() must first write the high 80 * word to [address+2], and then write the low word to [address]. 81 */ 82 #define M68K_SIMULATE_PD_WRITES OPT_OFF 83 84 /* If ON, CPU will call the interrupt acknowledge callback when it services an 85 * interrupt. 86 * If off, all interrupts will be autovectored and all interrupt requests will 87 * auto-clear when the interrupt is serviced. 88 */ 89 #define M68K_EMULATE_INT_ACK OPT_OFF 90 #define M68K_INT_ACK_CALLBACK(A) your_int_ack_handler_function(A) 91 92 93 /* If ON, CPU will call the breakpoint acknowledge callback when it encounters 94 * a breakpoint instruction and it is running a 68010+. 95 */ 96 #define M68K_EMULATE_BKPT_ACK OPT_OFF 97 #define M68K_BKPT_ACK_CALLBACK() your_bkpt_ack_handler_function() 98 99 100 /* If ON, the CPU will monitor the trace flags and take trace exceptions 101 */ 102 #define M68K_EMULATE_TRACE OPT_OFF 103 104 105 /* If ON, CPU will call the output reset callback when it encounters a reset 106 * instruction. 107 */ 108 #define M68K_EMULATE_RESET OPT_ON 109 #define M68K_RESET_CALLBACK() your_reset_handler_function() 110 111 112 /* If ON, CPU will call the set fc callback on every memory access to 113 * differentiate between user/supervisor, program/data access like a real 114 * 68000 would. This should be enabled and the callback should be set if you 115 * want to properly emulate the m68010 or higher. (moves uses function codes 116 * to read/write data from different address spaces) 117 */ 118 #define M68K_EMULATE_FC OPT_OFF 119 #define M68K_SET_FC_CALLBACK(A) your_set_fc_handler_function(A) 120 121 122 /* If ON, CPU will call the pc changed callback when it changes the PC by a 123 * large value. This allows host programs to be nicer when it comes to 124 * fetching immediate data and instructions on a banked memory system. 125 */ 126 #define M68K_MONITOR_PC OPT_OFF 127 #define M68K_SET_PC_CALLBACK(A) your_pc_changed_handler_function(A) 128 129 130 /* If ON, CPU will call the instruction hook callback before every 131 * instruction. 132 */ 133 #define M68K_INSTRUCTION_HOOK OPT_OFF 134 #define M68K_INSTRUCTION_CALLBACK() your_instruction_hook_function() 135 136 137 /* If ON, the CPU will emulate the 4-byte prefetch queue of a real 68000 */ 138 #define M68K_EMULATE_PREFETCH OPT_OFF 139 140 141 /* If ON, the CPU will generate address error exceptions if it tries to 142 * access a word or longword at an odd address. 143 * NOTE: This is only emulated properly for 68000 mode. 144 */ 145 #define M68K_EMULATE_ADDRESS_ERROR OPT_OFF 146 147 148 /* Turn ON to enable logging of illegal instruction calls. 149 * M68K_LOG_FILEHANDLE must be #defined to a stdio file stream. 150 * Turn on M68K_LOG_1010_1111 to log all 1010 and 1111 calls. 151 */ 152 #define M68K_LOG_ENABLE OPT_OFF 153 #define M68K_LOG_1010_1111 OPT_OFF 154 #define M68K_LOG_FILEHANDLE some_file_handle 155 156 157 /* ----------------------------- COMPATIBILITY ---------------------------- */ 158 159 /* The following options set optimizations that violate the current ANSI 160 * standard, but will be compliant under the forthcoming C9X standard. 161 */ 162 163 164 /* If ON, the enulation core will use 64-bit integers to speed up some 165 * operations. 166 */ 167 #define M68K_USE_64_BIT OPT_OFF 168 169 170 /* Set to your compiler's static inline keyword to enable it, or 171 * set it to blank to disable it. 172 * If you define INLINE in the makefile, it will override this value. 173 * NOTE: not enabling inline functions will SEVERELY slow down emulation. 174 */ 175 #ifndef INLINE 176 #ifdef _MSC_VER 177 #define INLINE _inline 178 #else 179 #define INLINE static inline 180 #endif 181 #endif /* INLINE */ 182 183 #endif /* M68K_COMPILE_FOR_MAME */ 184 185 186 /* ======================================================================== */ 187 /* ============================== END OF FILE ============================= */ 188 /* ======================================================================== */ 189 190 #endif /* M68KCONF__HEADER */ 191