AM:ReadTwlBackupInfo: Difference between revisions

From 3dbrew
Jump to navigation Jump to search
No edit summary
No edit summary
Line 33: Line 33:
|-
|-
| 9
| 9
| Buffer 2 Pointer, [[DSiWare_Exports|DSiWare]] header.
| Buffer 2 Pointer, work buffer.
|-
|-
| 10
| 10
Line 39: Line 39:
|-
|-
| 11
| 11
| Buffer 3 Pointer, [[DSiWare_Exports|DSiWare]] banner. Processing is skipped for this when the pointer is NULL.
| Buffer 3 Pointer, output [[DSiWare_Exports|DSiWare]] banner. Processing is skipped for this when the pointer is NULL.
|}
|}


Line 56: Line 56:


=Description=
=Description=
The specified [[DSiWare_Exports|file]] size must be >=0x4500. This reads data from the specified file, and writes the decrypted+verified section data into the last 2 output buffers. This also writes some data into Buf1.
The specified [[DSiWare_Exports|file]] size must be >=0x4500. This reads the DSiWare header+banner from the file, and decrypts+verifies these sections. This also writes some data into Buf1 using the plaintext header.

Revision as of 17:16, 19 October 2016

Request

Index Word Description
0 Header code [0x001E00C8]
1 Buffer 1 Size
2 Buffer 2 Size
3 Buffer 3 Size
4 0x10
5 FSFile Handle
6 (Buffer 1 Size << 4) | 0xC
7 Buffer 1 Pointer, output info. Processing is skipped for this when the pointer is NULL.
8 (Buffer 2 Size << 4) | 0xC
9 Buffer 2 Pointer, work buffer.
10 (Buffer 3 Size << 4) | 0xC
11 Buffer 3 Pointer, output DSiWare banner. Processing is skipped for this when the pointer is NULL.

Response

Index Word Description
0 Header code
1 Result code

Description

The specified file size must be >=0x4500. This reads the DSiWare header+banner from the file, and decrypts+verifies these sections. This also writes some data into Buf1 using the plaintext header.