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annotate xband.c @ 1348:040c5600e2d9

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Implemented slow rise time of IO pins set as inputs, but not driven by device. Fixes input in Decap Attack and possibly other games with buggy controller code
author Michael Pavone <pavone@retrodev.com>
date Mon, 08 May 2017 22:31:28 -0700
parents 6370b80491c7
children 780fbe0b97be
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2e6dcb5c11a2 WIP support for XBAND mapper hardware
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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 //Internal ROM is 512KB, accept larger ones for overdumps and custom firmware
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87 if (rom_size < (512*1024)) {
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88 return 0;
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89 }
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90
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91 //ROM has no standard header, but does have a jump at $100
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92 if (rom[0x100] != 0x4E || rom[0x101] != 0xF9) {
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93 return 0;
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94 }
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95
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96 //product ID is all NULL
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97 for (int i = GAME_ID_OFF; i <= (GAME_ID_OFF + GAME_ID_LEN); i++)
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98 {
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99 if (rom[i]) {
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100 return 0;
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101 }
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102 }
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103 return 1;
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104 }
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105
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106 static xband *get_xband(genesis_context *gen)
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107 {
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108 if (!gen->extra) {
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109 gen->extra = gen->m68k->options->gen.memmap[0].buffer;
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110 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage;
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111 }
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112 return gen->extra;
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113 }
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114
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115 static void update_control(genesis_context *gen, uint8_t value)
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116 {
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117 xband *x = gen->extra;
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118 if ((x->control ^ value) & BIT_ROM_HI) {
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119 if (value & BIT_ROM_HI) {
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120 gen->m68k->mem_pointers[0] = (uint16_t *)gen->save_storage;
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121 gen->m68k->mem_pointers[1] = NULL;
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122 gen->m68k->mem_pointers[2] = gen->cart;
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123 gen->m68k->mem_pointers[3] = x->cart_space - 0x100000;
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124 } else {
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125 gen->m68k->mem_pointers[0] = x->cart_space;
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126 gen->m68k->mem_pointers[1] = x->cart_space;
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127 gen->m68k->mem_pointers[2] = (uint16_t *)gen->save_storage;
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128 gen->m68k->mem_pointers[3] = NULL;
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129 }
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130 m68k_invalidate_code_range(gen->m68k, 0, 0x3BC000);
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131 }
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132 x->control = value;
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133 }
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134
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135 static void *xband_write_b(uint32_t address, void *context, uint8_t value)
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136 {
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137 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
138 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
139 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
140 if (address == 0x181) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
141 x->kill = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
142 dprintf("Write to \"soft\" kill register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
143 } else if (address == 0x183) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
144 update_control(gen, value);
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
145 dprintf("Write to \"soft\" control register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
146 } 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
147 gen->save_storage[(address & 0xFFFF) ^ 1] = value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
148 m68k_handle_code_write(address, m68k);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
149 //TODO: handle code at mirror addresses
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
150 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
151 printf("Unhandled write to cartridge area %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
152 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
153 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
154 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
155
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
156 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
157 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
158 return xband_write_b(address | 0x200000, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
159 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
160
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
161 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
162 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
163 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
164 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
165 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
166 if (address == 0x180 || address == 0x182) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
167 return xband_write_b(address | 1, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
168 } 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
169 gen->save_storage[address & 0xFFFE] = value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
170 gen->save_storage[(address & 0xFFFE) | 1] = value >> 8;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
171 m68k_handle_code_write(address, m68k);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
172 //TODO: handle code at mirror addresses
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
173 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
174 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
175 printf("Unhandled write to %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
176 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
177 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
178
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
179 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
180 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
181 return xband_write_w(address | 0x200000, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
182 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
183
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 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
185 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
186 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
187 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
188 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
189 //TODO: actually do something intelligent here
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
190 return x->cart_space[address >> 1];
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
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
193 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
194 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
195 return xband_read_w(address | 0x200000, 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
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
198 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
199 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
200 uint16_t val = xband_read_w(address, context);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
201 return address & 1 ? val : val >> 8;
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 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
205 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
206 return xband_read_b(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 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
210 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
211 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
212 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
213 if (!(address & 1)) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
214 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
215 return 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 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
218 if (address < 0x3BFE00) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
219 uint32_t offset = (address - 0x3BC001) / 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
220 if (offset < XBAND_REGS) {
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
221 switch (offset)
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
222 {
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
223 case MORE_MYSTERY:
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
224 case UNKNOWN_REG:
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
225 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
226 value = value & 0x7F;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
227 break;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
228 case UNKNOWN_REG3:
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
229 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
230 value = value & 0xFE;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
231 break;
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
232 }
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
233 x->regs[offset] = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
234 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
235 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
236 printf("Unhandled register write %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
237 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
238 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
239 if (address == 0x3BFE01) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
240 x->kill = value;
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
241 dprintf("Write to kill register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
242 } else if (address == 0x3BFE03) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
243 update_control(gen, value);
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
244 dprintf("Write to control register %X\n", value);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
245 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
246 printf("Unhandled register write %X: %X\n", address, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
247 }
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 return context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
250 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
251
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
252 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
253 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
254 return xband_reg_write_b(address | 1, context, value);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
255 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
256
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
257 static uint8_t xband_reg_read_b(uint32_t address, void *context)
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 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
260 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
261 if (!(address & 1)) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
262 printf("Read from even address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
263 return gen->header.get_open_bus_value(&gen->header) >> 8;
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 xband *x = get_xband(gen);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
266 if (address < 0x3BFE00) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
267 uint32_t offset = (address - 0x3BC001) / 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
268 if (offset < XBAND_REGS) {
1231
d9d775d61fcf Cut down on the verbose logging in XBAND code
Michael Pavone <pavone@retrodev.com>
parents: 1230
diff changeset
269 dprintf("Regsister read: %X\n", address);
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
270 return x->regs[offset];
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
271 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
272 printf("Unhandled register read from address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
273 return 0x5D;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
274 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
275 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
276 if (address == 0x3BFE01) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
277 return x->kill;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
278 } else if (address == 0x3BFE03) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
279 return x->control;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
280 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
281 printf("Unhandled register read from address %X\n", address);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
282 return 0x5D;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
283 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
284 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
285 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
286
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
287 static uint16_t xband_reg_read_w(uint32_t address, void *context)
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
288 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
289 m68k_context *m68k = context;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
290 genesis_context *gen = m68k->system;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
291 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
292 value |= gen->header.get_open_bus_value(&gen->header) & 0xFF00;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
293 return value;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
294 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
295
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
296 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
297 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
298 rom_info info;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
299 if (lock_on && lock_on_size) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
300 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
301 info.name = alloc_concat("XBAND - ", lock_on_info.name);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
302 info.regions = lock_on_info.regions;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
303 //TODO: Move this to a shared function in romdbc.h
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
304 free(lock_on_info.name);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
305 if (lock_on_info.save_type != SAVE_NONE) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
306 free(lock_on_info.save_buffer);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
307 if (lock_on_info.save_type == SAVE_I2C) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
308 free(lock_on_info.eeprom_map);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
309 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
310 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
311 free(lock_on_info.map);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
312 free(lock_on_info.port1_override);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
313 free(lock_on_info.port2_override);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
314 free(lock_on_info.ext_override);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
315 free(lock_on_info.mouse_mode);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
316 } else {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
317 info.name = strdup("XBAND");
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
318 info.regions = REGION_J|REGION_U|REGION_E;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
319 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
320 info.save_size = 64*1024;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
321 info.save_buffer = malloc(info.save_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
322 info.save_mask = info.save_size-1;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
323 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
324 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
325 info.port2_override = strdup("xband keyboard");
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
326 info.eeprom_map = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
327 info.num_eeprom = 0;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
328 xband *x = calloc(sizeof(xband), 1);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
329 rom_size = nearest_pow2(rom_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
330 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
331 {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
332 memcpy(x->cart_space + i/2, rom, rom_size);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
333 }
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
334 if (lock_on && lock_on_size >= 0x200) {
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
335 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
336 }
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
337 //observed power on values
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
338 memset(x->regs, 0, sizeof(x->regs));
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
339 x->regs[0x7C] = 0;
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
340 x->regs[0x7D] = 0x80;
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
341 x->regs[0xB4] = 0x7F;
1230
0ed27bb6a658 Awful hack to get the XBAND menu booting
Michael Pavone <pavone@retrodev.com>
parents: 1229
diff changeset
342 x->regs[UNKNOWN_REG2] = 8;
1229
a8313793216a Minor xband fixes
Michael Pavone <pavone@retrodev.com>
parents: 1228
diff changeset
343
1228
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
344 byteswap_rom(0x400000, x->cart_space);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
345
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
346 info.map_chunks = base_chunks + 5;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
347 info.map = calloc(sizeof(memmap_chunk), info.map_chunks);
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
348 info.map[0].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
349 info.map[0].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
350 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
351 info.map[0].start = 0;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
352 info.map[0].end = 0x10000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
353 info.map[0].ptr_index = 0;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354 info.map[0].buffer = x->cart_space;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
355 info.map[0].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
356 info.map[0].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
357 info.map[0].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
358 info.map[0].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
359 info.map[1].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
360 info.map[1].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 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
362 info.map[1].start = 0x10000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
363 info.map[1].end = 0x200000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
364 info.map[1].ptr_index = 1;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 info.map[1].buffer = x->cart_space;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
366 info.map[1].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
367 info.map[1].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 info.map[1].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 info.map[1].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
370 info.map[2].mask = 0xFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
371 info.map[2].aux_mask = 0xFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
372 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
373 info.map[2].start = 0x200000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
374 info.map[2].end = 0x210000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
375 info.map[2].ptr_index = 2;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
376 info.map[2].buffer = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
377 info.map[2].write_16 = xband_write_hi_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
378 info.map[2].write_8 = xband_write_hi_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379 info.map[2].read_16 = xband_read_hi_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380 info.map[2].read_8 = xband_read_hi_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 info.map[3].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 info.map[3].aux_mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
383 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
384 info.map[3].start = 0x210000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
385 info.map[3].end = 0x3BC000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
386 info.map[3].ptr_index = 3;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
387 info.map[3].buffer = NULL;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
388 info.map[3].write_16 = xband_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
389 info.map[3].write_8 = xband_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
390 info.map[3].read_16 = xband_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
391 info.map[3].read_8 = xband_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 info.map[4].mask = 0xFFFFFF;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
393 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
394 info.map[4].start = 0x3BC000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
395 info.map[4].end = 0x3C0000;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
396 info.map[4].ptr_index = 4;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
397 info.map[4].write_16 = xband_reg_write_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
398 info.map[4].write_8 = xband_reg_write_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
399 info.map[4].read_16 = xband_reg_read_w;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
400 info.map[4].read_8 = xband_reg_read_b;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
401 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
402
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 return info;
2e6dcb5c11a2 WIP support for XBAND mapper hardware
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
404 }