DSi cartridge header

OFFSET	SIZE	DESCRIPTION
0x000	12	Game Title
0x00C	4	Gamecode
0x010	2	Makercode
0x012	1	Unitcode
0x013	1	Encryption seed select
0x014	1	Devicecapacity
0x015	9	Reserved
0x01E	1	ROM Version
0x01F	1	Autostart
0x020	4	FLX ARM9 rom offset
0x024	4	FLX ARM9 entry address
0x028	4	FLX ARM9 load address
0x02C	4	FLX ARM9 size
0x030	4	FLX ARM7 rom offset
0x034	4	FLX ARM7 entry address
0x038	4	FLX ARM7 load address
0x03C	4	FLX ARM7 size
...	...	Fill me in
0x1C0	4	LTD ARM9 rom offset (maybe?)
0x1C4	4	?
0x1C8	4	LTD ARM9 load address
0x1CC	4	LTD ARM9 size
0x1D0	4	LTD ARM7 rom offset
0x1D4	4	?
0x1D8	4	LTD ARM7 load address
0x1DC	4	LTD ARM7 size
...	...	...
0xE00	0x180	Reserved and unchecked region, always zero
0xF80	0x80	RSA signature

The first 0xE00 bytes of the SRL header is signed with an 1024-bit RSA signature.