This chapter describes the "ROM Archive" that is provided by default in the file system.
Basic ROM archive operations are shown below. Using the name "rom", which is reserved by the file system, this is automatically loaded when the FS_Init
function is called. By utilizing CARD functions and accessing an appropriate CARD ROM, this provides archive information in the NitroROM format that it constructed on the CARD ROM.
You can use it from FS functions that access the overlay table.
A ROM archive implementation is shown below. Read callback:
The CARD_ReadRomAsync
function reads CARD ROM data. It returns FS_RESULT_PROC_ASYNC
when the process begins, and on completion responds with FS_RESULT_SUCCESS
. Write callback:
Not supported. Always returns FS_RESULT_FAILURE
.
User Procedures:
FS_COMMAND_ACTIVATE |
In order to access the CARD ROM that will follow, calls CARD_LockRom . |
FS_COMMAND_IDLE |
In conjunction with the end of CARD ROM access, calls CARD_UnlockRom . |
FS_COMMAND_WRITEFILE |
This command is not supported. Will always return FS_RESULT_UNSUPPORTED . |
Other | Returns FS_RESULT_PROC_UNKNOWN and defaults to default commands. |
FSArchive, FS_ARCHIVE_PROC_FUNC, FS_SetArchiveProc
09/24/2004 Initial version.