Mercurial > repos > blastem
annotate m68k_core.h @ 1475:afa3fbb76bff nuklear_ui
Basic support for loading ROMs via Nuklear UI
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 21 Nov 2017 23:11:11 -0800 |
parents | 4e5797b3935a |
children | 2455662378ed 8b2ef428d1aa |
rev | line source |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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6 #ifndef M68K_CORE_H_ |
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7 #define M68K_CORE_H_ |
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8 #include <stdint.h> |
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9 #include <stdio.h> |
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10 #include "backend.h" |
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11 #include "serialize.h" |
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12 //#include "68kinst.h" |
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13 struct m68kinst; |
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14 |
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Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
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15 #define NUM_MEM_AREAS 8 |
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16 #define NATIVE_MAP_CHUNKS (64*1024) |
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17 #define NATIVE_CHUNK_SIZE ((16 * 1024 * 1024 / NATIVE_MAP_CHUNKS)) |
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18 #define MAX_NATIVE_SIZE 255 |
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19 |
837 | 20 #define M68K_OPT_BROKEN_READ_MODIFY 1 |
21 | |
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22 #define INT_PENDING_SR_CHANGE 254 |
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23 #define INT_PENDING_NONE 255 |
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24 |
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Implemented M68K trace mode. Some edge cases/SR update paths still need work
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25 #define M68K_STATUS_TRACE 0x80 |
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26 |
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27 typedef void (*start_fun)(uint8_t * addr, void * context); |
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28 |
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29 typedef struct { |
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30 code_ptr impl; |
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31 uint16_t reglist; |
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32 uint8_t reg_to_mem; |
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33 uint8_t size; |
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34 int8_t dir; |
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35 } movem_fun; |
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36 |
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37 typedef struct { |
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38 cpu_options gen; |
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39 |
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40 int8_t dregs[8]; |
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41 int8_t aregs[8]; |
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42 int8_t flag_regs[5]; |
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43 FILE *address_log; |
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44 code_ptr read_16; |
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45 code_ptr write_16; |
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46 code_ptr read_8; |
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47 code_ptr write_8; |
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48 code_ptr read_32; |
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49 code_ptr write_32_lowfirst; |
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50 code_ptr write_32_highfirst; |
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51 code_ptr do_sync; |
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52 code_ptr handle_int_latch; |
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53 code_ptr trap; |
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54 start_fun start_context; |
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55 code_ptr retrans_stub; |
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56 code_ptr native_addr; |
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57 code_ptr native_addr_and_sync; |
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58 code_ptr get_sr; |
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59 code_ptr set_sr; |
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60 code_ptr set_ccr; |
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61 code_ptr bp_stub; |
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62 code_info extra_code; |
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63 movem_fun *big_movem; |
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64 uint32_t num_movem; |
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65 uint32_t movem_storage; |
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66 code_word prologue_start; |
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67 } m68k_options; |
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68 |
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69 typedef struct m68k_context m68k_context; |
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70 typedef void (*m68k_debug_handler)(m68k_context *context, uint32_t pc); |
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71 |
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72 typedef struct { |
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73 m68k_debug_handler handler; |
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74 uint32_t address; |
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75 } m68k_breakpoint; |
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76 |
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77 struct m68k_context { |
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78 uint8_t flags[5]; |
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79 uint8_t status; |
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80 uint16_t int_ack; |
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81 uint32_t dregs[8]; |
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82 uint32_t aregs[9]; |
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83 uint32_t target_cycle; //cycle at which the next synchronization or interrupt occurs |
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84 uint32_t current_cycle; |
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85 uint32_t sync_cycle; |
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86 uint32_t int_cycle; |
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87 uint32_t int_num; |
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88 uint32_t last_prefetch_address; |
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89 uint16_t *mem_pointers[NUM_MEM_AREAS]; |
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90 code_ptr resume_pc; |
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91 code_ptr reset_handler; |
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92 m68k_options *options; |
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93 void *system; |
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94 m68k_breakpoint *breakpoints; |
85a90964b557
Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Michael Pavone <pavone@retrodev.com>
parents:
1303
diff
changeset
|
95 uint32_t num_breakpoints; |
85a90964b557
Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Michael Pavone <pavone@retrodev.com>
parents:
1303
diff
changeset
|
96 uint32_t bp_storage; |
846
98d7b6073163
Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
Michael Pavone <pavone@retrodev.com>
parents:
837
diff
changeset
|
97 uint8_t int_pending; |
1303
208803173ebc
Implemented M68K trace mode. Some edge cases/SR update paths still need work
Michael Pavone <pavone@retrodev.com>
parents:
1298
diff
changeset
|
98 uint8_t trace_pending; |
872
7022ba865cfd
Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents:
846
diff
changeset
|
99 uint8_t should_return; |
690
fc04781f4d28
Removed hardcoded assumptions in M68K core about which parts of the memory map are RAM
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
100 uint8_t ram_code_flags[]; |
1329
85a90964b557
Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Michael Pavone <pavone@retrodev.com>
parents:
1303
diff
changeset
|
101 }; |
14
2bdad0f52f42
x86 code gen, initial work on translator
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
102 |
1082
2ec5e6eaf81d
Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
103 typedef m68k_context *(*m68k_reset_handler)(m68k_context *context); |
1329
85a90964b557
Fix interaction between 68K debugger and instruction retranslation due to self modifying code or bank switching
Michael Pavone <pavone@retrodev.com>
parents:
1303
diff
changeset
|
104 |
1082
2ec5e6eaf81d
Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
105 |
567
8e395210f50f
Refactor gen_x86 to use an interface more like gen_arm and to remove the need for the caller to decide whether an 8-bit or 32-bit displacement is needed in the rdisp functions. Update m68k_to_x86 to use the new version of the gen_x86 functions and do some minor refactoring there in the process
Michael Pavone <pavone@retrodev.com>
parents:
566
diff
changeset
|
106 void translate_m68k_stream(uint32_t address, m68k_context * context); |
18
3e7bfde7606e
M68K to x86 translation works for a limited subset of instructions and addressing modes
Mike Pavone <pavone@retrodev.com>
parents:
14
diff
changeset
|
107 void start_68k_context(m68k_context * context, uint32_t address); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
108 void resume_68k(m68k_context *context); |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
653
diff
changeset
|
109 void init_m68k_opts(m68k_options * opts, memmap_chunk * memmap, uint32_t num_chunks, uint32_t clock_divider); |
1082
2ec5e6eaf81d
Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
110 m68k_context * init_68k_context(m68k_options * opts, m68k_reset_handler reset_handler); |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
18
diff
changeset
|
111 void m68k_reset(m68k_context * context); |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
112 void m68k_options_free(m68k_options *opts); |
1111
2eb54e24914e
Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents:
1102
diff
changeset
|
113 void insert_breakpoint(m68k_context * context, uint32_t address, m68k_debug_handler bp_handler); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
155
diff
changeset
|
114 void remove_breakpoint(m68k_context * context, uint32_t address); |
208
3457dc6fd558
Tweaks to make blastem compatible with m68k-tester
Mike Pavone <pavone@retrodev.com>
parents:
198
diff
changeset
|
115 m68k_context * m68k_handle_code_write(uint32_t address, m68k_context * context); |
1130
8f14767661fa
Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents:
1111
diff
changeset
|
116 uint32_t get_instruction_start(m68k_options *opts, uint32_t address); |
989
d70000fdff0b
Implemented IR and undefined bits of info word for address error exception frames
Michael Pavone <pavone@retrodev.com>
parents:
987
diff
changeset
|
117 uint16_t m68k_get_ir(m68k_context *context); |
1082
2ec5e6eaf81d
Add support for specifying a reset handler in the M68K core. Adjust memory map initialization to handle extra field. Improved handling of out of bounds execution.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
118 void m68k_print_regs(m68k_context * context); |
1228
2e6dcb5c11a2
WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
1130
diff
changeset
|
119 void m68k_invalidate_code_range(m68k_context *context, uint32_t start, uint32_t end); |
1427
4e5797b3935a
WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents:
1363
diff
changeset
|
120 void m68k_serialize(m68k_context *context, uint32_t pc, serialize_buffer *buf); |
4e5797b3935a
WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents:
1363
diff
changeset
|
121 void m68k_deserialize(deserialize_buffer *buf, void *vcontext); |
54
3b79cbcf6846
Get Flavio's color bar demo kind of sort of working
Mike Pavone <pavone@retrodev.com>
parents:
18
diff
changeset
|
122 |
569
9b7fcf748be0
Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
Michael Pavone <pavone@retrodev.com>
parents:
567
diff
changeset
|
123 #endif //M68K_CORE_H_ |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents:
197
diff
changeset
|
124 |