

When using the TWL-SDK to develop TWL or NITRO applications, always call OS_Init first as soon as control shifts to the user's NitroMain or TwlMain function. The functions called by OS_Init are required for proper behavior and cannot be called in any other order.
(In the sample demo os/cplusplus-1, implemented in C++, the OS_Init function is called before NitroMain because memory management needs to be initialized.)
The functions called inside OS_Init differ depending on whether the system is operating in NITRO or TWL mode. For details, see the OS_Init function.
In developing for NITRO and TWL, you must prepare the NitroMain or TwlMain function as the first function called after shifting control to the user. Although their names are different, there are no particularly major differences between these two functions.
However, you cannot use the TwlMain function if the ROM type is NITRO ROM.
2009/06/18 Added a description of Main.
2009/06/03 Initial version.
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