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comparison m68k_core.h @ 2054:8ee7ecbf3f21 segacd

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Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
author Michael Pavone <pavone@retrodev.com>
date Tue, 18 Jan 2022 00:03:50 -0800
parents 8b2ef428d1aa
children 8554751f17b5
comparison
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2053:3414a4423de1 2054:8ee7ecbf3f21
23 #define INT_PENDING_NONE 255 23 #define INT_PENDING_NONE 255
24 24
25 #define M68K_STATUS_TRACE 0x80 25 #define M68K_STATUS_TRACE 0x80
26 26
27 typedef void (*start_fun)(uint8_t * addr, void * context); 27 typedef void (*start_fun)(uint8_t * addr, void * context);
28 typedef struct m68k_context m68k_context;
29 typedef m68k_context *(*sync_fun)(m68k_context * context, uint32_t address);
28 30
29 typedef struct { 31 typedef struct {
30 code_ptr impl; 32 code_ptr impl;
31 uint16_t reglist; 33 uint16_t reglist;
32 uint8_t reg_to_mem; 34 uint8_t reg_to_mem;
57 code_ptr native_addr_and_sync; 59 code_ptr native_addr_and_sync;
58 code_ptr get_sr; 60 code_ptr get_sr;
59 code_ptr set_sr; 61 code_ptr set_sr;
60 code_ptr set_ccr; 62 code_ptr set_ccr;
61 code_ptr bp_stub; 63 code_ptr bp_stub;
64 sync_fun sync_components;
62 code_info extra_code; 65 code_info extra_code;
63 movem_fun *big_movem; 66 movem_fun *big_movem;
64 uint32_t num_movem; 67 uint32_t num_movem;
65 uint32_t movem_storage; 68 uint32_t movem_storage;
66 code_word prologue_start; 69 code_word prologue_start;
67 } m68k_options; 70 } m68k_options;
68 71
69 typedef struct m68k_context m68k_context;
70 typedef void (*m68k_debug_handler)(m68k_context *context, uint32_t pc); 72 typedef void (*m68k_debug_handler)(m68k_context *context, uint32_t pc);
71 73
72 typedef struct { 74 typedef struct {
73 m68k_debug_handler handler; 75 m68k_debug_handler handler;
74 uint32_t address; 76 uint32_t address;
104 106
105 107
106 void translate_m68k_stream(uint32_t address, m68k_context * context); 108 void translate_m68k_stream(uint32_t address, m68k_context * context);
107 void start_68k_context(m68k_context * context, uint32_t address); 109 void start_68k_context(m68k_context * context, uint32_t address);
108 void resume_68k(m68k_context *context); 110 void resume_68k(m68k_context *context);
109 void init_m68k_opts(m68k_options * opts, memmap_chunk * memmap, uint32_t num_chunks, uint32_t clock_divider); 111 void init_m68k_opts(m68k_options * opts, memmap_chunk * memmap, uint32_t num_chunks, uint32_t clock_divider, sync_fun sync_components);
110 m68k_context * init_68k_context(m68k_options * opts, m68k_reset_handler reset_handler); 112 m68k_context * init_68k_context(m68k_options * opts, m68k_reset_handler reset_handler);
111 void m68k_reset(m68k_context * context); 113 void m68k_reset(m68k_context * context);
112 void m68k_options_free(m68k_options *opts); 114 void m68k_options_free(m68k_options *opts);
113 void insert_breakpoint(m68k_context * context, uint32_t address, m68k_debug_handler bp_handler); 115 void insert_breakpoint(m68k_context * context, uint32_t address, m68k_debug_handler bp_handler);
114 void remove_breakpoint(m68k_context * context, uint32_t address); 116 void remove_breakpoint(m68k_context * context, uint32_t address);