1 /* ======================================================================== */
2 /* ========================= LICENSING & COPYRIGHT ======================== */
3 /* ======================================================================== */
8 * A portable Motorola M680x0 processor emulation engine.
9 * Copyright Karl Stenerud. All rights reserved.
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:
18 * The above copyright notice and this permission notice shall be included in
19 * all copies or substantial portions of the Software.
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
32 #ifndef M68KCONF__HEADER
33 #define M68KCONF__HEADER
36 /* Configuration switches.
37 * Use OPT_SPECIFY_HANDLER for configuration options that allow callbacks.
38 * OPT_SPECIFY_HANDLER causes the core to link directly to the function
39 * or macro you specify, rather than using callback functions whose pointer
40 * must be passed in using m68k_set_xxx_callback().
44 #define OPT_SPECIFY_HANDLER 2
47 /* ======================================================================== */
48 /* ============================== MAME STUFF ============================== */
49 /* ======================================================================== */
51 /* If you're compiling this for MAME, only change M68K_COMPILE_FOR_MAME
52 * to OPT_ON and use m68kmame.h to configure the 68k core.
54 #ifndef M68K_COMPILE_FOR_MAME
55 #define M68K_COMPILE_FOR_MAME OPT_OFF
56 #endif /* M68K_COMPILE_FOR_MAME */
59 #if M68K_COMPILE_FOR_MAME == OPT_OFF
62 /* ======================================================================== */
63 /* ============================= CONFIGURATION ============================ */
64 /* ======================================================================== */
66 /* Turn ON if you want to use the following M68K variants */
67 #define M68K_EMULATE_010 OPT_ON
68 #define M68K_EMULATE_EC020 OPT_ON
69 #define M68K_EMULATE_020 OPT_ON
70 #define M68K_EMULATE_030 OPT_ON
71 #define M68K_EMULATE_040 OPT_ON
74 /* If ON, the CPU will call m68k_read_immediate_xx() for immediate addressing
75 * and m68k_read_pcrelative_xx() for PC-relative addressing.
76 * If off, all read requests from the CPU will be redirected to m68k_read_xx()
78 #define M68K_SEPARATE_READS OPT_OFF
80 /* If ON, the CPU will call m68k_write_32_pd() when it executes move.l with a
81 * predecrement destination EA mode instead of m68k_write_32().
82 * To simulate real 68k behavior, m68k_write_32_pd() must first write the high
83 * word to [address+2], and then write the low word to [address].
85 #define M68K_SIMULATE_PD_WRITES OPT_OFF
87 /* If ON, CPU will call the interrupt acknowledge callback when it services an
89 * If off, all interrupts will be autovectored and all interrupt requests will
90 * auto-clear when the interrupt is serviced.
92 #define M68K_EMULATE_INT_ACK OPT_SPECIFY_HANDLER
93 #define M68K_INT_ACK_CALLBACK(...) 0xFFFFFFFF
96 /* If ON, CPU will call the breakpoint acknowledge callback when it encounters
97 * a breakpoint instruction and it is running a 68010+.
99 #define M68K_EMULATE_BKPT_ACK OPT_OFF
100 #define M68K_BKPT_ACK_CALLBACK() your_bkpt_ack_handler_function()
103 /* If ON, the CPU will monitor the trace flags and take trace exceptions
105 #define M68K_EMULATE_TRACE OPT_OFF
108 /* If ON, CPU will call the output reset callback when it encounters a reset
111 #define M68K_EMULATE_RESET OPT_SPECIFY_HANDLER
112 #define M68K_RESET_CALLBACK() cpu_pulse_reset()
114 /* If ON, CPU will call the callback when it encounters a cmpi.l #v, dn
117 #define M68K_CMPILD_HAS_CALLBACK OPT_OFF
118 #define M68K_CMPILD_CALLBACK(v,r) your_cmpild_handler_function(v,r)
121 /* If ON, CPU will call the callback when it encounters a rte
124 #define M68K_RTE_HAS_CALLBACK OPT_OFF
125 #define M68K_RTE_CALLBACK() your_rte_handler_function()
127 /* If ON, CPU will call the callback when it encounters a tas
130 #define M68K_TAS_HAS_CALLBACK OPT_OFF
131 #define M68K_TAS_CALLBACK() your_tas_handler_function()
133 /* If ON, CPU will call the callback when it encounters an illegal instruction
134 * passing the opcode as argument. If the callback returns 1, then it's considered
135 * as a normal instruction, and the illegal exception in canceled. If it returns 0,
136 * the exception occurs normally.
137 * The callback looks like int callback(int opcode)
138 * You should put OPT_SPECIFY_HANDLER here if you cant to use it, otherwise it will
139 * use a dummy default handler and you'll have to call m68k_set_illg_instr_callback explicitely
141 #define M68K_ILLG_HAS_CALLBACK OPT_OFF
142 #define M68K_ILLG_CALLBACK(opcode) op_illg(opcode)
144 /* If ON, CPU will call the set fc callback on every memory access to
145 * differentiate between user/supervisor, program/data access like a real
146 * 68000 would. This should be enabled and the callback should be set if you
147 * want to properly emulate the m68010 or higher. (moves uses function codes
148 * to read/write data from different address spaces)
150 #define M68K_EMULATE_FC OPT_OFF
151 #define M68K_SET_FC_CALLBACK(A) cpu_set_fc(A)
153 /* If ON, CPU will call the pc changed callback when it changes the PC by a
154 * large value. This allows host programs to be nicer when it comes to
155 * fetching immediate data and instructions on a banked memory system.
157 #define M68K_MONITOR_PC OPT_OFF
158 #define M68K_SET_PC_CALLBACK(A) your_pc_changed_handler_function(A)
161 /* If ON, CPU will call the instruction hook callback before every
164 #define M68K_INSTRUCTION_HOOK OPT_OFF
165 #define M68K_INSTRUCTION_CALLBACK(pc) cpu_instr_callback(pc)
168 /* If ON, the CPU will emulate the 4-byte prefetch queue of a real 68000 */
169 #define M68K_EMULATE_PREFETCH OPT_ON
172 /* If ON, the CPU will generate address error exceptions if it tries to
173 * access a word or longword at an odd address.
174 * NOTE: This is only emulated properly for 68000 mode.
176 #define M68K_EMULATE_ADDRESS_ERROR OPT_OFF
179 /* Turn ON to enable logging of illegal instruction calls.
180 * M68K_LOG_FILEHANDLE must be #defined to a stdio file stream.
181 * Turn on M68K_LOG_1010_1111 to log all 1010 and 1111 calls.
183 #define M68K_LOG_ENABLE OPT_OFF
184 #define M68K_LOG_1010_1111 OPT_OFF
185 #define M68K_LOG_FILEHANDLE some_file_handle
188 #define M68K_EMULATE_PMMU OPT_ON
191 /* ----------------------------- COMPATIBILITY ---------------------------- */
193 /* The following options set optimizations that violate the current ANSI
194 * standard, but will be compliant under the forthcoming C9X standard.
198 /* If ON, the enulation core will use 64-bit integers to speed up some
201 #define M68K_USE_64_BIT OPT_ON
204 #include "emulator.h"
207 //#define m68k_read_memory_8(A) read16(A)
208 //#define m68k_read_memory_16(A) read16(A)
209 //#define m68k_read_memory_32(A) read16(A)
211 //#define m68k_read_disassembler_16(A) cpu_read_word_dasm(A)
212 //#define m68k_read_disassembler_32(A) cpu_read_long_dasm(A)
214 //#define m68k_write_memory_8(A, V) write16(A, V)
215 //#define m68k_write_memory_16(A, V) write16(A, V)
216 //#define m68k_write_memory_32(A, V) write16(A, V)
219 #endif /* M68K_COMPILE_FOR_MAME */
221 /* ======================================================================== */
222 /* ============================== END OF FILE ============================= */
223 /* ======================================================================== */
225 #endif /* M68KCONF__HEADER */