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Fix bug in MED mapper protection bit implementation
author Michael Pavone <pavone@retrodev.com>
date Sun, 28 Apr 2024 23:33:11 -0700
parents 03e6ac327ba0
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1502
2564b6ba2e12 Initial skeleton of Sega CD memory handlers
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1 #ifndef SEGACD_H_
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2 #define SEGACD_H_
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3 #include <stdint.h>
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4 #include "genesis.h"
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7c1760b5b3e5 Implemented basic TOC functionality of CDD MCU
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5 #include "cdd_mcu.h"
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6 #include "rf5c164.h"
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7 #include "serialize.h"
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8
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9 typedef struct {
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10 m68k_context *m68k;
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11 system_media *media;
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12 genesis_context *genesis;
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13 uint16_t gate_array[0xC0];
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14 uint16_t *rom; //unaltered ROM, needed for mirrored locations
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15 uint16_t *rom_mut; //ROM with low 16-bit of HINT vector modified by register write
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16 uint16_t *prog_ram;
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17 uint16_t *word_ram;
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18 uint8_t *bram;
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19 uint8_t *bram_cart;
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20 uint32_t stopwatch_cycle;
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21 uint32_t int2_cycle;
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22 uint32_t graphics_int_cycle;
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23 uint32_t periph_reset_cycle;
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24 uint32_t last_refresh_cycle;
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25 uint32_t graphics_cycle;
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26 uint32_t base;
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27 uint32_t m68k_pc;
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28 uint32_t speed_percent;
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29 uint32_t graphics_x;
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30 uint32_t graphics_y;
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31 uint32_t graphics_dx;
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32 uint32_t graphics_dy;
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33 uint16_t graphics_dst_x;
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34 uint16_t vdp_dma_value;
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35 uint8_t graphics_pixels[4];
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36 uint8_t graphics_debug_window;
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parents: 1503
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37 uint8_t timer_pending;
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38 uint8_t timer_value;
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39 uint8_t busreq;
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40 uint8_t busack;
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41 uint8_t reset;
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parents: 1503
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42 uint8_t need_reset;
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43 uint8_t memptr_start_index;
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02a9846668d1 Implement transfer of data from CDC to elsewhere. Other miscellaneous CDD/CDC improvements
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44 uint8_t cdc_dst_low;
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a61a8a87410c Fix a bunch of CDC/CDD related mcd-verificator failures
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45 uint8_t cdc_int_ack;
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46 uint8_t graphics_step;
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47 uint8_t graphics_dst_y;
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ff32a90260c9 Initial support for using debugger on sub CPU
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48 uint8_t enter_debugger;
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5ec2f97365a2 More accurate RET/DMNA implementation
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49 uint8_t main_has_word2m;
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50 uint8_t main_swap_request;
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51 uint8_t bank_toggle;
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52 uint8_t sub_paused_wordram;
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b9fed07f19e4 Implement BRAM cart support
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53 uint8_t bram_cart_write_enabled;
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54 uint8_t bram_cart_id;
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55 uint8_t has_vdp_dma_value;
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56 rf5c164 pcm;
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57 lc8951 cdc;
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58 cdd_mcu cdd;
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59 cdd_fader fader;
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60 } segacd_context;
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61
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62 segacd_context *alloc_configure_segacd(system_media *media, uint32_t opts, uint8_t force_region, rom_info *info);
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4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
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63 void free_segacd(segacd_context *cd);
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64 memmap_chunk *segacd_main_cpu_map(segacd_context *cd, uint8_t cart_boot, uint32_t *num_chunks);
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65 uint32_t gen_cycle_to_scd(uint32_t cycle, genesis_context *gen);
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66 void scd_run(segacd_context *cd, uint32_t cycle);
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67 void scd_adjust_cycle(segacd_context *cd, uint32_t deduction);
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68 void scd_toggle_graphics_debug(segacd_context *cd);
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69 void segacd_set_speed_percent(segacd_context *cd, uint32_t percent);
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70 void segacd_serialize(segacd_context *cd, serialize_buffer *buf, uint8_t all);
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71 void segacd_register_section_handlers(segacd_context *cd, deserialize_buffer *buf);
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c05b7c5e6f11 Automatically format Sega CD backup RAM
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72 void segacd_format_bram(uint8_t *buffer, size_t size);
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73 void segacd_config_updated(segacd_context *cd);
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74
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75 #endif //SEGACD_H_