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
0x1B8	4	ARM7 SCFG EXT mask (controls which devices to enable)
0x1C0	4	LTD ARM9 rom offset
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
...	...	...
0x230	8	Title ID
...	...	...
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.