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view m68k_core.h @ 724:2174f92c5f9b
Fix bug in vdp_next_hint that was causing HINTs to fire repeatedly when they should not have fired at all based on an HINT interval that was larger than the number of active lines in the display
author | Michael Pavone <pavone@retrodev.com> |
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date | Fri, 22 May 2015 18:38:44 -0700 |
parents | fc04781f4d28 |
children | 7367b14ac01c |
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/* Copyright 2013 Michael Pavone This file is part of BlastEm. BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. */ #ifndef M68K_CORE_H_ #define M68K_CORE_H_ #include <stdint.h> #include <stdio.h> #include "backend.h" //#include "68kinst.h" struct m68kinst; #define NUM_MEM_AREAS 4 #define NATIVE_MAP_CHUNKS (64*1024) #define NATIVE_CHUNK_SIZE ((16 * 1024 * 1024 / NATIVE_MAP_CHUNKS)/2) #define MAX_NATIVE_SIZE 255 typedef void (*start_fun)(uint8_t * addr, void * context); typedef struct { cpu_options gen; int8_t dregs[8]; int8_t aregs[8]; int8_t flag_regs[5]; FILE *address_log; code_ptr read_16; code_ptr write_16; code_ptr read_8; code_ptr write_8; code_ptr read_32; code_ptr write_32_lowfirst; code_ptr write_32_highfirst; code_ptr do_sync; code_ptr trap; start_fun start_context; code_ptr retrans_stub; code_ptr native_addr; code_ptr native_addr_and_sync; code_ptr get_sr; code_ptr set_sr; code_ptr set_ccr; } m68k_options; typedef struct { uint8_t flags[5]; uint8_t status; uint16_t int_ack; uint32_t dregs[8]; uint32_t aregs[9]; uint32_t target_cycle; //cycle at which the next synchronization or interrupt occurs uint32_t current_cycle; uint32_t sync_cycle; uint32_t int_cycle; uint32_t int_num; uint16_t *mem_pointers[NUM_MEM_AREAS]; void *video_context; uint16_t reserved; native_map_slot *native_code_map; m68k_options *options; void *system; uint8_t ram_code_flags[]; } m68k_context; void translate_m68k(m68k_options * opts, struct m68kinst * inst); void translate_m68k_stream(uint32_t address, m68k_context * context); void start_68k_context(m68k_context * context, uint32_t address); void init_m68k_opts(m68k_options * opts, memmap_chunk * memmap, uint32_t num_chunks, uint32_t clock_divider); m68k_context * init_68k_context(m68k_options * opts); void m68k_reset(m68k_context * context); void insert_breakpoint(m68k_context * context, uint32_t address, uint8_t * bp_handler); void remove_breakpoint(m68k_context * context, uint32_t address); m68k_context * m68k_handle_code_write(uint32_t address, m68k_context * context); uint32_t get_instruction_start(native_map_slot * native_code_map, uint32_t address); #endif //M68K_CORE_H_