A few questions about using sd card

[kof888]

(02.03.2022 18:39)megavolt85 писал(а):  1) yes, execute from app File Manager
2) most games don't work from IP.BIN
3) yes, same problem with HDD
4) CDI is not the best choice for SD, even if the game starts it runs much slower than reading ISO or GDI-Opt

your code is call to function gd_dmaread_stream, R5 can be contain pointer to buffer with two parametrs (LBA and sector count)
SD don't have DMA and this function not work in most games

Thanks for your reply

I probably know something, but there are still some questions I want to figure out

1 How to use the specific method? For example, I wrote an elf program that loads a bmp file and displays it on the screen. How should I add it to the app File Manager?

2 Then the method of reading in iso_loader is to directly read the main program file (1st_read.bin) executed in ip, right?

3 In the near future, I will upload the modified main program file and the complete gdi image

4 So what other methods are used in the reading program of the sd card? Is there any information available?