<srdcad folder>
srdcad is CAD tool which is used by super mario advance. 
This is japanese tool(There is not english version).

<scad2bin folder>
AgbConv is the converter. This converts srdcad data to C file.
This is japanese tool(There is not english version).
It is necessary to define enviroment value "AGBDIR".
Please define the root path of AGB SDK to "AGBDIR".
For example
AGBDIR = c:\agb

<mairo_bos and mario_usa folder>
srdcad datas which are used by super mairo advance is in these folders.

.sch ---- charactor data
.ssc ---- screen data
.scl ---- palette data
.sob ---- object data

<CompTool>
CompTool is the tool for compressing the data. The array which is decompressed by TENKAI fucntion in source code
is compressed by this tool. This tool is japanese tool(There is not english version).

How to compress
1. Convert srdcad data to C file using AgbConv.
2. Edit outputed C file.
   
   Erase the comment.
   Edit the definition of the array.
   For example 
   <before>                                                <after>
   const unsigned char d_loader_bg_schDT[0x1014] -------> u8 d_loader_bg_schDT[]   
   const unsigned short int d_selectbg3_sscDT[32*32/1] -> u16  d_selectbg3_sscDT[]

3. Save edited C file.
4. Compress C file using CompTool. If you want to compress u8 array, push "u8" button.
   If you want to compress u16 array, push "u16" button.

<Caution>
There is not the infomation that which srdcad data is converted to which C file(in src/USA_data).
But there is one hint. The name of C files are similar to the name of original srdcad datas.