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annotate blastem.h @ 696:0b2242bbc84a

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Added config option to allow specifying a max sync cycle smaller than the end of frame
author Michael Pavone <pavone@retrodev.com>
date Tue, 05 May 2015 08:42:27 -0700
parents 5439ae7946ca
children 8aa9aacefe12
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140af5509ce7 Added copyright notice to source files and added GPL license text in COPYING
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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 BLASTEM_H_
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7 #define BLASTEM_H_
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9 #include <stdint.h>
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10 #include "m68k_core.h"
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11 #include "z80_to_x86.h"
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12 #include "ym2612.h"
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13 #include "vdp.h"
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14 #include "psg.h"
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15 #include "io.h"
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16 #include "config.h"
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18 #define RAM_FLAG_ODD 0x1800
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19 #define RAM_FLAG_EVEN 0x1000
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20 #define RAM_FLAG_BOTH 0x0000
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22 typedef struct {
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23 m68k_context *m68k;
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24 z80_context *z80;
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25 vdp_context *vdp;
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26 ym2612_context *ym;
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27 psg_context *psg;
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28 uint8_t *save_ram;
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29 uint32_t save_ram_mask;
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30 uint32_t save_flags;
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31 uint32_t master_clock; //Current master clock value
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32 uint32_t normal_clock; //Normal master clock (used to restore master clock after turbo mode)
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33 uint32_t frame_end;
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34 uint32_t max_cycles;
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35 uint8_t bank_regs[8];
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36 io_port ports[3];
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37 uint8_t bus_busy;
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38 } genesis_context;
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40 extern genesis_context * genesis;
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41 extern int headless;
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42 extern int break_on_sync;
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43 extern int save_state;
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44 extern tern_node * config;
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46 #define CARTRIDGE_WORDS 0x200000
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47 #define RAM_WORDS 32 * 1024
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48 #define Z80_RAM_BYTES 8 * 1024
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50 extern uint16_t cart[CARTRIDGE_WORDS];
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51 extern uint16_t ram[RAM_WORDS];
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52 extern uint8_t z80_ram[Z80_RAM_BYTES];
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54 uint16_t read_dma_value(uint32_t address);
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55 m68k_context * debugger(m68k_context * context, uint32_t address);
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56 void set_speed_percent(genesis_context * context, uint32_t percent);
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58 #endif //BLASTEM_H_
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