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annotate xband.c @ 1971:80920c21bb52

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Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
author Michael Pavone <pavone@retrodev.com>
date Fri, 08 May 2020 11:40:30 -0700
parents 17c1c30e0d6f
children d74d3998482c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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diff changeset
1 #include <stdlib.h>
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2 #include <stddef.h>
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3 #include <string.h>
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4 #include "romdb.h"
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5 #include "genesis.h"
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6 #include "tern.h"
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7 #include "xband.h"
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8 #include "util.h"
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9
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10 #define BIT_ROM_HI 4
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11
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12 enum {
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13 PATCH0_LOW,
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14 PATCH0_MID,
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15 PATCH0_HI,
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16 PATCH1_LOW=4,
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17 PATCH1_MID,
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18 PATCH1_HI,
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19 PATCH2_LOW=8,
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20 PATCH2_MID,
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21 PATCH2_HI,
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22 PATCH3_LOW=12,
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23 PATCH3_MID,
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24 PATCH3_HI,
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25 PATCH4_LOW=16,
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26 PATCH4_MID,
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27 PATCH4_HI,
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28 PATCH5_LOW=20,
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29 PATCH5_MID,
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30 PATCH5_HI,
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31 PATCH6_LOW=24,
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32 PATCH6_MID,
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33 PATCH6_HI,
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34 PATCH7_LOW=28,
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35 PATCH7_MID,
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36 PATCH7_HI,
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37 PATCH8_LOW=32,
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38 PATCH8_MID,
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39 PATCH8_HI,
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40 PATCH9_LOW=36,
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41 PATCH9_MID,
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42 PATCH9_HI,
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43 PATCH10_LOW=40,
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44 PATCH10_MID,
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45 PATCH10_HI,
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46 RANGE0_START_LOW=44,
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47 RANGE0_START_MID,
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48 RANGE0_START_HI,
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49 RANGE1_START=48,
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50 RANGE1_START_MID,
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51 RANGE1_START_HI,
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52 MAGIC_LOW=56,
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53 MAGIC_MID,
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54 MAGIC_HI,
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55 RANGE0_END_LOW=64,
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56 RANGE0_END_MID,
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57 RANGE0_END_HI,
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58 RANGE1_END_LOW=68,
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59 RANGE1_END_MID,
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60 RANGE1_END_HI,
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61 RANGE0_DEST_LOW=80,
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62 RANGE0_DEST_HI,
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63 RANGE0_MASK,
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64 RANGE1_DEST_LOW=84,
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65 RANGE1_DEST_HI,
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66 RANGE1_MASK,
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67
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68 MORE_MYSTERY=219,
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69 UNKNOWN_REG=221,
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70 UNKNOWN_REG2,
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71 UNKNOWN_REG3,
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72
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73 };
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74
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75 //#define DO_DEBUG_PRINT
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76 #ifdef DO_DEBUG_PRINT
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77 #define dprintf printf
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78 #define dputs puts
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79 #else
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80 #define dprintf
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81 #define dputs
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82 #endif
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83
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84 uint8_t xband_detect(uint8_t *rom, uint32_t rom_size)
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85 {
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86 if (rom_size < 0x200) {
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87 return 0;
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88 }
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89
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90 //product ID is all NULL
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91 for (int i = GAME_ID_OFF; i <= (GAME_ID_OFF + GAME_ID_LEN); i++)
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92 {
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93 if (rom[i]) {
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94 return 0;
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95 }
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96 }
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97
17c1c30e0d6f Added detection of XBAND test ROMs. None seem to actually work with my limited FRED chip implementation though
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98 if (!memcmp(rom+8, "DAVE", 4)) {
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99 //XBAND test roms
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100 return 1;
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101 }
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102
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103 //Internal ROM is 512KB, accept larger ones for overdumps and custom firmware
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104 if (rom_size < (512*1024)) {
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105 return 0;
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106 }
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107
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108 //ROM has no standard header, but does have a jump at $100
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109 if (rom[0x100] != 0x4E || rom[0x101] != 0xF9) {
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110 return 0;
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111 }
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112
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113
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114 return 1;
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115 }
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116
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117 static xband *get_xband(genesis_context *gen)
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118 {
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119 if (!gen->extra) {
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120 gen->extra = gen->m68k->options->gen.memmap[0].buffer;
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121 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage;
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122 }
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123 return gen->extra;
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124 }
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125
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126 static void update_control(genesis_context *gen, uint8_t value)
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127 {
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128 xband *x = gen->extra;
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129 if ((x->control ^ value) & BIT_ROM_HI) {
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130 if (value & BIT_ROM_HI) {
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131 gen->m68k->mem_pointers[0] = (uint16_t *)gen->save_storage;
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132 gen->m68k->mem_pointers[1] = NULL;
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133 gen->m68k->mem_pointers[2] = gen->cart;
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134 gen->m68k->mem_pointers[3] = x->cart_space - 0x100000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
135 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
136 gen->m68k->mem_pointers[0] = x->cart_space;
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parents:
diff changeset
137 gen->m68k->mem_pointers[1] = x->cart_space;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
138 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
139 gen->m68k->mem_pointers[3] = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
140 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
141 m68k_invalidate_code_range(gen->m68k, 0, 0x3BC000);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
142 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
143 x->control = value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
144 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
145
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
146 static void *xband_write_b(uint32_t address, void *context, uint8_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
147 {
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parents:
diff changeset
148 m68k_context *m68k = context;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
149 genesis_context *gen = m68k->system;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
150 xband *x = get_xband(gen);
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
151 if (address == 0x181) {
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parents:
diff changeset
152 x->kill = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
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parents: 1230
diff changeset
153 dprintf("Write to \"soft\" kill register %X\n", value);
1228
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parents:
diff changeset
154 } else if (address == 0x183) {
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parents:
diff changeset
155 update_control(gen, value);
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
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parents: 1230
diff changeset
156 dprintf("Write to \"soft\" control register %X\n", value);
1228
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parents:
diff changeset
157 } else if ((x->control & BIT_ROM_HI && address < 0x200000) || (address >= 0x200000 && !(x->control & BIT_ROM_HI))) {
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
158 gen->save_storage[(address & 0xFFFF) ^ 1] = value;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
159 m68k_handle_code_write(address, m68k);
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parents:
diff changeset
160 //TODO: handle code at mirror addresses
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
161 } else {
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
162 printf("Unhandled write to cartridge area %X: %X\n", address, value);
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parents:
diff changeset
163 }
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parents:
diff changeset
164 return context;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
165 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
166
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
167 static void *xband_write_hi_b(uint32_t address, void *context, uint8_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
168 {
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parents:
diff changeset
169 return xband_write_b(address | 0x200000, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
170 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
171
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
172 static void *xband_write_w(uint32_t address, void *context, uint16_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
173 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
174 m68k_context *m68k = context;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
175 genesis_context *gen = m68k->system;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
176 xband *x = get_xband(gen);
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
177 if (address == 0x180 || address == 0x182) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
178 return xband_write_b(address | 1, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
179 } else if ((x->control & BIT_ROM_HI && address < 0x200000) || (address >= 0x200000 && !(x->control & BIT_ROM_HI))) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
180 gen->save_storage[address & 0xFFFE] = value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
181 gen->save_storage[(address & 0xFFFE) | 1] = value >> 8;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
182 m68k_handle_code_write(address, m68k);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
183 //TODO: handle code at mirror addresses
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
185 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
186 printf("Unhandled write to %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
187 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
188 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
189
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
190 static void *xband_write_hi_w(uint32_t address, void *context, uint16_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
191 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
192 return xband_write_w(address | 0x200000, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
193 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
194
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
195 static uint16_t xband_read_w(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
196 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
197 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
198 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
199 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
200 //TODO: actually do something intelligent here
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
201 return x->cart_space[address >> 1];
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
202 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
203
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
204 static uint16_t xband_read_hi_w(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
205 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
206 return xband_read_w(address | 0x200000, context);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
207 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
208
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
209 static uint8_t xband_read_b(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
210 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
211 uint16_t val = xband_read_w(address, context);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
212 return address & 1 ? val : val >> 8;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
213 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
214
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
215 static uint8_t xband_read_hi_b(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
216 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
217 return xband_read_b(address | 0x200000, context);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
218 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
219
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
220 static void *xband_reg_write_b(uint32_t address, void *context, uint8_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
221 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
222 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
223 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
224 if (!(address & 1)) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
225 printf("Ignoring write to even address %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
226 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
227 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
228 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
229 if (address < 0x3BFE00) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
230 uint32_t offset = (address - 0x3BC001) / 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
231 if (offset < XBAND_REGS) {
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
232 switch (offset)
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
233 {
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
234 case MORE_MYSTERY:
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
235 case UNKNOWN_REG:
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
236 dprintf("Write to mysterious reg: %X: %X\n", address, value);
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
237 value = value & 0x7F;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
238 break;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
239 case UNKNOWN_REG3:
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
240 dprintf("Write to mysterious reg: %X: %X\n", address, value);
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
241 value = value & 0xFE;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
242 break;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
243 }
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
244 x->regs[offset] = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
245 dprintf("Write to register %X(%d): %X\n", address, offset, value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
246 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
247 printf("Unhandled register write %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
248 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
249 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
250 if (address == 0x3BFE01) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
251 x->kill = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
252 dprintf("Write to kill register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
253 } else if (address == 0x3BFE03) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
254 update_control(gen, value);
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
255 dprintf("Write to control register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
256 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
257 printf("Unhandled register write %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
258 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
259 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
260 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
261 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
262
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
263 static void *xband_reg_write_w(uint32_t address, void *context, uint16_t value)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
264 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
265 return xband_reg_write_b(address | 1, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
266 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
267
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
268 static uint8_t xband_reg_read_b(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
269 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
270 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
271 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
272 if (!(address & 1)) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
273 printf("Read from even address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
274 return gen->header.get_open_bus_value(&gen->header) >> 8;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
275 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
276 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
277 if (address < 0x3BFE00) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
278 uint32_t offset = (address - 0x3BC001) / 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
279 if (offset < XBAND_REGS) {
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
280 dprintf("Regsister read: %X\n", address);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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diff changeset
281 return x->regs[offset];
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
282 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
283 printf("Unhandled register read from address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
284 return 0x5D;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
285 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
286 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
287 if (address == 0x3BFE01) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
288 return x->kill;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
289 } else if (address == 0x3BFE03) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
290 return x->control;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
291 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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diff changeset
292 printf("Unhandled register read from address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
293 return 0x5D;
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parents:
diff changeset
294 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
295 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
296 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
297
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
298 static uint16_t xband_reg_read_w(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
299 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
300 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
301 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
302 uint16_t value = xband_reg_read_b(address | 1, context);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
303 value |= gen->header.get_open_bus_value(&gen->header) & 0xFF00;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
304 return value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
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parents:
diff changeset
305 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
306
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
307 void xband_serialize(genesis_context *gen, serialize_buffer *buf)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
308 {
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
309 xband *x = get_xband(gen);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
310 save_int8(buf, x->kill);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
311 save_int8(buf, x->control);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
312 save_buffer8(buf, x->regs, XBAND_REGS);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
313 }
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
314
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
315 void xband_deserialize(deserialize_buffer *buf, genesis_context *gen)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
316 {
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
317 xband *x = get_xband(gen);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
318 x->kill = load_int8(buf);
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
319 update_control(gen, load_int8(buf));
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
320 for (int i = 0; i < XBAND_REGS; i++)
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
321 {
1446
adb62000d296 Pass the correct context pointer to write handlers in mapper deserialize functions
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
322 xband_write_b(0x3BC001 + i*2, gen->m68k, load_int8(buf));
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
323 }
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
324 }
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
325
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
326 rom_info xband_configure_rom(tern_node *rom_db, void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, memmap_chunk const *base_map, uint32_t base_chunks)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
327 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
328 rom_info info;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
329 if (lock_on && lock_on_size) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
330 rom_info lock_on_info = configure_rom(rom_db, lock_on, lock_on_size, NULL, 0, base_map, base_chunks);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
331 info.name = alloc_concat("XBAND - ", lock_on_info.name);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
332 info.regions = lock_on_info.regions;
1411
780fbe0b97be WIP support for handling S3 save RAM when locked on
Michael Pavone <pavone@retrodev.com>
parents: 1255
diff changeset
333 free_rom_info(&lock_on_info);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
334 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
335 info.name = strdup("XBAND");
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
336 info.regions = REGION_J|REGION_U|REGION_E;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
337 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
338 info.save_size = 64*1024;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
339 info.save_buffer = malloc(info.save_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
340 info.save_mask = info.save_size-1;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
341 info.save_type = RAM_FLAG_BOTH;
1255
6370b80491c7 Automatically connect XBAND keyboard if XBAND ROM is detected
Michael Pavone <pavone@retrodev.com>
parents: 1231
diff changeset
342 info.port1_override = info.ext_override = info.mouse_mode = NULL;
6370b80491c7 Automatically connect XBAND keyboard if XBAND ROM is detected
Michael Pavone <pavone@retrodev.com>
parents: 1231
diff changeset
343 info.port2_override = strdup("xband keyboard");
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
344 info.eeprom_map = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
345 info.num_eeprom = 0;
1416
11ac0b511cff Support a couple of bootleg X-in-1 carts
Michael Pavone <pavone@retrodev.com>
parents: 1411
diff changeset
346 info.rom = rom;
11ac0b511cff Support a couple of bootleg X-in-1 carts
Michael Pavone <pavone@retrodev.com>
parents: 1411
diff changeset
347 info.rom_size = rom_size;
11ac0b511cff Support a couple of bootleg X-in-1 carts
Michael Pavone <pavone@retrodev.com>
parents: 1411
diff changeset
348 info.is_save_lock_on = 0;
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
349 xband *x = calloc(sizeof(xband), 1);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
350 rom_size = nearest_pow2(rom_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
351 for (int i = 0; (i + rom_size) <= sizeof(x->cart_space) / 2; i += rom_size)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
352 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
353 memcpy(x->cart_space + i/2, rom, rom_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
355 if (lock_on && lock_on_size >= 0x200) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
356 memcpy(x->cart_space + 0x80, ((uint16_t *)lock_on) + 0x80, 0x100);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
357 }
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
358 //observed power on values
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
359 memset(x->regs, 0, sizeof(x->regs));
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
360 x->regs[0x7C] = 0;
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
361 x->regs[0x7D] = 0x80;
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
362 x->regs[0xB4] = 0x7F;
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
363 x->regs[UNKNOWN_REG2] = 8;
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
364
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 byteswap_rom(0x400000, x->cart_space);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
366
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
367 info.mapper_type = MAPPER_XBAND;
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 info.map_chunks = base_chunks + 5;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 info.map = calloc(sizeof(memmap_chunk), info.map_chunks);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
370 info.map[0].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
371 info.map[0].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
372 info.map[0].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL|MMAP_AUX_BUFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
373 info.map[0].start = 0;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
374 info.map[0].end = 0x10000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
375 info.map[0].ptr_index = 0;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
376 info.map[0].buffer = x->cart_space;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
377 info.map[0].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
378 info.map[0].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379 info.map[0].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380 info.map[0].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 info.map[1].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 info.map[1].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
383 info.map[1].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL|MMAP_AUX_BUFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
384 info.map[1].start = 0x10000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
385 info.map[1].end = 0x200000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
386 info.map[1].ptr_index = 1;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
387 info.map[1].buffer = x->cart_space;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
388 info.map[1].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
389 info.map[1].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
390 info.map[1].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
391 info.map[1].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 info.map[2].mask = 0xFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
393 info.map[2].aux_mask = 0xFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
394 info.map[2].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
395 info.map[2].start = 0x200000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
396 info.map[2].end = 0x210000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
397 info.map[2].ptr_index = 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
398 info.map[2].buffer = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
399 info.map[2].write_16 = xband_write_hi_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
400 info.map[2].write_8 = xband_write_hi_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
401 info.map[2].read_16 = xband_read_hi_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
402 info.map[2].read_8 = xband_read_hi_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 info.map[3].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
404 info.map[3].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
405 info.map[3].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
406 info.map[3].start = 0x210000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
407 info.map[3].end = 0x3BC000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
408 info.map[3].ptr_index = 3;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
409 info.map[3].buffer = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
410 info.map[3].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
411 info.map[3].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
412 info.map[3].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
413 info.map[3].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
414 info.map[4].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
415 info.map[4].flags = MMAP_READ|MMAP_CODE|MMAP_PTR_IDX|MMAP_FUNC_NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
416 info.map[4].start = 0x3BC000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
417 info.map[4].end = 0x3C0000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
418 info.map[4].ptr_index = 4;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
419 info.map[4].write_16 = xband_reg_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
420 info.map[4].write_8 = xband_reg_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
421 info.map[4].read_16 = xband_reg_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
422 info.map[4].read_8 = xband_reg_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
423 memcpy(info.map + 5, base_map, base_chunks * sizeof(memmap_chunk));
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
424
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
425 return info;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
426 }