Mercurial > repos > blastem
annotate menu.c @ 924:1b86268a4cb3
Change the sentinel value for the hslot parameter of run_dma_src to something that is not a valid slot number and actually use it for calls during the active display period
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 02 Feb 2016 18:33:00 -0800 |
parents | 252dfd29831d |
children | f7da9b4df0e7 |
rev | line source |
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866
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Menu ROM now pulls real file names from the OS rather than using a fake list
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1 #include <stdint.h> |
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2 #include <stdlib.h> |
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3 #include <string.h> |
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4 #include <stdio.h> |
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5 #include "blastem.h" |
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6 #include "menu.h" |
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7 #include "backend.h" |
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8 #include "util.h" |
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9 |
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10 |
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11 uint16_t menu_read_w(uint32_t address, void * context) |
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12 { |
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13 //This should return the status of the last request with 0 |
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14 //meaning either the request is complete or no request is pending |
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15 //in the current implementation, the operations happen instantly |
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16 //in emulated time so we can always return 0 |
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17 return 0; |
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18 } |
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19 |
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Allow directory navigation in menu. Sort directory entries
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20 int menu_dir_sort(const void *a, const void *b) |
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21 { |
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22 const dir_entry *da, *db; |
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23 da = a; |
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24 db = b; |
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25 if (da->is_dir != db->is_dir) { |
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26 return db->is_dir - da->is_dir; |
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27 } |
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28 return strcasecmp(((dir_entry *)a)->name, ((dir_entry *)b)->name); |
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29 } |
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30 |
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31 void copy_string_from_guest(m68k_context *m68k, uint32_t guest_addr, char *buf, size_t maxchars) |
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32 { |
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33 char *cur; |
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34 char *src = NULL; |
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35 for (cur = buf; cur < buf+maxchars; cur+=2, guest_addr+=2, src+=2) |
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36 { |
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37 if (!src || !(guest_addr & 0xFFFF)) { |
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38 //we may have walked off the end of a memory block, get a fresh native pointer |
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39 src = get_native_pointer(guest_addr, (void **)m68k->mem_pointers, &m68k->options->gen); |
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40 if (!src) { |
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41 break; |
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42 } |
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43 } |
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44 *cur = src[1]; |
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45 cur[1] = *src; |
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46 if (!*src || !src[1]) { |
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47 break; |
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48 } |
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49 } |
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50 //make sure we terminate the string even if we did not hit a null terminator in the source |
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51 buf[maxchars-1] = 0; |
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52 } |
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53 |
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SDL_AndroidGetExternalStoragePath did not do what I thought. Use JNI directly to call Environment.getExternalStorageDirectory
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54 #ifdef __ANDROID__ |
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55 #include <SDL.h> |
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56 #include <jni.h> |
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57 char *get_external_storage_path() |
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58 { |
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59 static char *ret; |
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60 if (ret) { |
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61 return ret; |
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62 } |
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63 JNIEnv *env = SDL_AndroidGetJNIEnv(); |
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64 if ((*env)->PushLocalFrame(env, 8) < 0) { |
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65 return NULL; |
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66 } |
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67 |
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68 jclass Environment = (*env)->FindClass(env, "android/os/Environment"); |
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69 jmethodID getExternalStorageDirectory = |
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70 (*env)->GetStaticMethodID(env, Environment, "getExternalStorageDirectory", "()Ljava/io/File;"); |
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71 jobject file = (*env)->CallStaticObjectMethod(env, Environment, getExternalStorageDirectory); |
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72 if (!file) { |
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73 goto cleanup; |
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74 } |
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75 |
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76 jmethodID getAbsolutePath = (*env)->GetMethodID(env, (*env)->GetObjectClass(env, file), |
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77 "getAbsolutePath", "()Ljava/lang/String;"); |
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78 jstring path = (*env)->CallObjectMethod(env, file, getAbsolutePath); |
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79 |
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80 char const *tmp = (*env)->GetStringUTFChars(env, path, NULL); |
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81 ret = strdup(tmp); |
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82 (*env)->ReleaseStringUTFChars(env, path, tmp); |
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83 |
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84 cleanup: |
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85 (*env)->PopLocalFrame(env, NULL); |
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86 return ret; |
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87 } |
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88 #endif |
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89 |
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90 void * menu_write_w(uint32_t address, void * context, uint16_t value) |
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91 { |
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92 m68k_context *m68k = context; |
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93 genesis_context *gen = m68k->system; |
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94 menu_context *menu = gen->extra; |
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95 if (!menu) { |
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96 gen->extra = menu = calloc(1, sizeof(menu_context)); |
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97 menu->curpath = tern_find_path(config, "ui\0initial_path\0").ptrval; |
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98 if (menu->curpath) { |
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99 menu->curpath = strdup(menu->curpath); |
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100 } else { |
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101 #ifdef __ANDROID__ |
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102 menu->curpath = strdup(get_external_storage_path()); |
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103 #else |
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104 menu->curpath = strdup(get_home_dir()); |
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105 #endif |
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106 } |
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107 } |
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108 if (menu->state) { |
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109 uint32_t dst = menu->latch << 16 | value; |
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110 switch (address >> 2) |
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111 { |
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112 case 0: { |
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113 size_t num_entries; |
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114 dir_entry *entries = get_dir_list(menu->curpath, &num_entries); |
868
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115 if (entries) { |
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116 qsort(entries, num_entries, sizeof(dir_entry), menu_dir_sort); |
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117 } |
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118 uint8_t *dest; |
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119 for (size_t i = 0; i < num_entries; i++) |
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Menu ROM now pulls real file names from the OS rather than using a fake list
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120 { |
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121 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen); |
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122 if (!dest) { |
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123 break; |
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124 } |
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125 *(dest++) = entries[i].is_dir; |
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126 *(dest++) = 1; |
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127 dst += 2; |
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128 uint8_t term = 0; |
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129 for (char *cpos = entries[i].name; *cpos; cpos++) |
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130 { |
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131 dest[1] = *cpos; |
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132 dest[0] = cpos[1]; |
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133 if (cpos[1]) { |
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134 cpos++; |
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135 } else { |
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136 term = 1; |
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137 } |
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138 dst += 2; |
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139 if (!(dst & 0xFFFF)) { |
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140 //we may have walked off the end of a memory block, get a fresh native pointer |
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141 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen); |
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142 if (!dest) { |
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143 break; |
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144 } |
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145 } else { |
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146 dest += 2; |
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147 } |
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148 } |
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149 if (!term) { |
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150 *(dest++) = 0; |
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151 *dest = 0; |
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152 dst += 2; |
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153 } |
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154 } |
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155 //terminate list |
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156 dest = get_native_pointer(dst, (void **)m68k->mem_pointers, &m68k->options->gen); |
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|
157 if (dest) { |
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158 *dest = dest[1] = 0; |
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159 free_dir_list(entries, num_entries); |
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|
160 } |
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|
161 break; |
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|
162 } |
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|
163 case 1: { |
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|
164 char buf[4096]; |
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165 copy_string_from_guest(m68k, dst, buf, sizeof(buf)); |
870
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166 if (!strcmp(buf, "..")) { |
f173317ecdb4
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167 size_t len = strlen(menu->curpath); |
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More efficient handling of going up one directory in menu
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168 while (len > 1) { |
f173317ecdb4
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169 --len; |
f173317ecdb4
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|
170 if (menu->curpath[len] == '/') { |
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171 menu->curpath[len] = 0; |
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172 break; |
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173 } |
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|
174 } |
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More efficient handling of going up one directory in menu
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175 } else { |
884
252dfd29831d
Selecting a second game from the menu now works
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|
176 char *tmp = menu->curpath; |
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Selecting a second game from the menu now works
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diff
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177 char const *pieces[] = {menu->curpath, "/", buf}; |
870
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|
178 menu->curpath = alloc_concat_m(3, pieces); |
884
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Selecting a second game from the menu now works
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|
179 free(tmp); |
870
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180 } |
866
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181 break; |
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|
182 } |
873
91bf4d905eba
Retrieve ROM filename from menu port write
Michael Pavone <pavone@retrodev.com>
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872
diff
changeset
|
183 case 2: { |
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184 char buf[4096]; |
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Retrieve ROM filename from menu port write
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diff
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|
185 copy_string_from_guest(m68k, dst, buf, sizeof(buf)); |
884
252dfd29831d
Selecting a second game from the menu now works
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882
diff
changeset
|
186 char const *pieces[] = {menu->curpath, "/", buf}; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
873
diff
changeset
|
187 gen->next_rom = alloc_concat_m(3, pieces); |
872
7022ba865cfd
Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
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870
diff
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|
188 m68k->should_return = 1; |
7022ba865cfd
Initial work for allowing loading a ROM from menu
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870
diff
changeset
|
189 break; |
873
91bf4d905eba
Retrieve ROM filename from menu port write
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parents:
872
diff
changeset
|
190 } |
866
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parents:
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|
191 default: |
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diff
changeset
|
192 fprintf(stderr, "WARNING: write to undefined menu port %X\n", address); |
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193 } |
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194 menu->state = 0; |
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195 } else { |
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changeset
|
196 menu->latch = value; |
69a6ec208111
Menu ROM now pulls real file names from the OS rather than using a fake list
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changeset
|
197 menu->state = 1; |
69a6ec208111
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|
198 } |
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diff
changeset
|
199 |
69a6ec208111
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parents:
diff
changeset
|
200 return context; |
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Menu ROM now pulls real file names from the OS rather than using a fake list
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parents:
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changeset
|
201 } |