Mercurial > repos > blastem
view m68k_core.h @ 995:2bc27415565b
Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
author | Michael Pavone <pavone@retrodev.com> |
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date | Sat, 30 Apr 2016 08:37:55 -0700 |
parents | d70000fdff0b |
children | 784bc1e45e80 |
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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 8 #define NATIVE_MAP_CHUNKS (64*1024) #define NATIVE_CHUNK_SIZE ((16 * 1024 * 1024 / NATIVE_MAP_CHUNKS)) #define MAX_NATIVE_SIZE 255 #define M68K_OPT_BROKEN_READ_MODIFY 1 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; uint32_t last_prefetch_address; uint16_t *mem_pointers[NUM_MEM_AREAS]; code_ptr resume_pc; native_map_slot *native_code_map; m68k_options *options; void *system; uint8_t int_pending; uint8_t should_return; 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 resume_68k(m68k_context *context); 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 m68k_options_free(m68k_options *opts); 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(m68k_options *opts, native_map_slot * native_code_map, uint32_t address); uint16_t m68k_get_ir(m68k_context *context); #endif //M68K_CORE_H_