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comparison backend.h @ 803:236a184bf6f0

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Merge
author Michael Pavone <pavone@retrodev.com>
date Sun, 26 Jul 2015 16:51:03 -0700
parents 7f96bd1cb1be
children 1f09994e92c5
comparison
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802:6811f601008f 803:236a184bf6f0
10 #include <stdio.h> 10 #include <stdio.h>
11 #include "gen.h" 11 #include "gen.h"
12 12
13 #define INVALID_OFFSET 0xFFFFFFFF 13 #define INVALID_OFFSET 0xFFFFFFFF
14 #define EXTENSION_WORD 0xFFFFFFFE 14 #define EXTENSION_WORD 0xFFFFFFFE
15 #define CYCLE_NEVER 0xFFFFFFFF
15 16
16 #if defined(X86_32) || defined(X86_64) 17 #if defined(X86_32) || defined(X86_64)
17 typedef struct { 18 typedef struct {
18 int32_t disp; 19 int32_t disp;
19 uint8_t mode; 20 uint8_t mode;
44 READ_8, 45 READ_8,
45 WRITE_16, 46 WRITE_16,
46 WRITE_8 47 WRITE_8
47 } ftype; 48 } ftype;
48 49
49 typedef struct {
50 uint32_t flags;
51 native_map_slot *native_code_map;
52 deferred_addr *deferred;
53 code_info code;
54 uint8_t **ram_inst_sizes;
55 code_ptr save_context;
56 code_ptr load_context;
57 code_ptr handle_cycle_limit;
58 code_ptr handle_cycle_limit_int;
59 code_ptr handle_code_write;
60 uint32_t address_mask;
61 uint32_t max_address;
62 uint32_t bus_cycles;
63 int32_t mem_ptr_off;
64 int32_t ram_flags_off;
65 uint8_t address_size;
66 uint8_t byte_swap;
67 uint8_t context_reg;
68 uint8_t cycles;
69 uint8_t limit;
70 uint8_t scratch1;
71 uint8_t scratch2;
72 } cpu_options;
73
74
75 #define MMAP_READ 0x01 50 #define MMAP_READ 0x01
76 #define MMAP_WRITE 0x02 51 #define MMAP_WRITE 0x02
77 #define MMAP_CODE 0x04 52 #define MMAP_CODE 0x04
78 #define MMAP_PTR_IDX 0x08 53 #define MMAP_PTR_IDX 0x08
79 #define MMAP_ONLY_ODD 0x10 54 #define MMAP_ONLY_ODD 0x10
80 #define MMAP_ONLY_EVEN 0x20 55 #define MMAP_ONLY_EVEN 0x20
81 #define MMAP_FUNC_NULL 0x40 56 #define MMAP_FUNC_NULL 0x40
57 #define MMAP_BYTESWAP 0x80
82 58
83 typedef uint16_t (*read_16_fun)(uint32_t address, void * context); 59 typedef uint16_t (*read_16_fun)(uint32_t address, void * context);
84 typedef uint8_t (*read_8_fun)(uint32_t address, void * context); 60 typedef uint8_t (*read_8_fun)(uint32_t address, void * context);
85 typedef void * (*write_16_fun)(uint32_t address, void * context, uint16_t value); 61 typedef void * (*write_16_fun)(uint32_t address, void * context, uint16_t value);
86 typedef void * (*write_8_fun)(uint32_t address, void * context, uint8_t value); 62 typedef void * (*write_8_fun)(uint32_t address, void * context, uint8_t value);
96 write_16_fun write_16; 72 write_16_fun write_16;
97 read_8_fun read_8; 73 read_8_fun read_8;
98 write_8_fun write_8; 74 write_8_fun write_8;
99 } memmap_chunk; 75 } memmap_chunk;
100 76
77 typedef struct {
78 uint32_t flags;
79 native_map_slot *native_code_map;
80 deferred_addr *deferred;
81 code_info code;
82 uint8_t **ram_inst_sizes;
83 memmap_chunk const *memmap;
84 code_ptr save_context;
85 code_ptr load_context;
86 code_ptr handle_cycle_limit;
87 code_ptr handle_cycle_limit_int;
88 code_ptr handle_code_write;
89 uint32_t memmap_chunks;
90 uint32_t address_mask;
91 uint32_t max_address;
92 uint32_t bus_cycles;
93 uint32_t clock_divider;
94 int32_t mem_ptr_off;
95 int32_t ram_flags_off;
96 uint8_t ram_flags_shift;
97 uint8_t address_size;
98 uint8_t byte_swap;
99 uint8_t context_reg;
100 uint8_t cycles;
101 uint8_t limit;
102 uint8_t scratch1;
103 uint8_t scratch2;
104 } cpu_options;
105
101 typedef uint8_t * (*native_addr_func)(void * context, uint32_t address); 106 typedef uint8_t * (*native_addr_func)(void * context, uint32_t address);
102 107
103 deferred_addr * defer_address(deferred_addr * old_head, uint32_t address, uint8_t *dest); 108 deferred_addr * defer_address(deferred_addr * old_head, uint32_t address, uint8_t *dest);
104 void remove_deferred_until(deferred_addr **head_ptr, deferred_addr * remove_to); 109 void remove_deferred_until(deferred_addr **head_ptr, deferred_addr * remove_to);
105 void process_deferred(deferred_addr ** head_ptr, void * context, native_addr_func get_native); 110 void process_deferred(deferred_addr ** head_ptr, void * context, native_addr_func get_native);
106 111
107 void cycles(cpu_options *opts, uint32_t num); 112 void cycles(cpu_options *opts, uint32_t num);
108 void check_cycles_int(cpu_options *opts, uint32_t address); 113 void check_cycles_int(cpu_options *opts, uint32_t address);
109 void check_cycles(cpu_options * opts); 114 void check_cycles(cpu_options * opts);
115 void check_code_prologue(code_info *code);
116 void log_address(cpu_options *opts, uint32_t address, char * format);
110 117
111 code_ptr gen_mem_fun(cpu_options * opts, memmap_chunk * memmap, uint32_t num_chunks, ftype fun_type); 118 code_ptr gen_mem_fun(cpu_options * opts, memmap_chunk const * memmap, uint32_t num_chunks, ftype fun_type, code_ptr *after_inc);
119 void * get_native_pointer(uint32_t address, void ** mem_pointers, cpu_options * opts);
120 uint32_t chunk_size(cpu_options *opts, memmap_chunk const *chunk);
121 uint32_t ram_size(cpu_options *opts);
112 122
113 #endif //BACKEND_H_ 123 #endif //BACKEND_H_
114 124