SD structure » History » Version 1
foft, 05/27/2018 07:54 PM
1 | 1 | foft | h1. SD structure |
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3 | Historically the SD card was used to load the OS roms and BASIC roms. The format was developed for the MIST (and similar devices) where there are multiple platforms. |
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5 | Essentially it expects a FAT formatted SD card (suggest 1-2GB) containing the folder structure: |
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6 | atari800/ |
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7 | user/ |
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8 | rom/ |
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10 | h2. User |
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12 | Under user you can put any atrs, xex files or car files. You can use long filenames and folders to organise them. |
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14 | h2. Rom |
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16 | Under rom you no longer need to put anyway, since its stored on the flash chip. However you CAN put: |
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17 | * A bunch of OS/basic roms |
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18 | * Turbo freezer rom |
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19 | * Settings |
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21 | When the EclaireXL starts it up it loads the OS and settings from the flash. It then can override these if certain special files are present. |
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23 | h3. Special rom files |
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24 | * atarixl.rom - main OS rom |
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25 | * ataribas.rom - atari basic |
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26 | * freezer.rom - turbo freezer rom |
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27 | * settings - video and system settings |
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29 | h4. Rom files |
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31 | If present these are loaded instead of the os and basic rom on the flash chip. This is useful to have e.g. an 'Altirra OS/basic' sd card or an 'OS B' sd card etc. |
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33 | h4. Settings |
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35 | If these are present then they are loaded in place of the settings on the flash chip. So you can for instance put in a settings file to force it to start in the specified video mode. Some example files and a program to create them can be found in here: http://www.64kib.com/autobuild/private/settings_examples/ |
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37 | h3. Other rom files |
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39 | Any other files in the rom folder are ignored. You can for instance put in atariosb.rom and atariosa.rom and load these from the menu to switch rom. |