Dreamcast GDI Compatibility List

[SWAT]

When the ISO Loader uses 0x8c000100, it's try emulate all syscalls. It's works not a 100% good. It's has some problems. So, maybe the game can't check some value from flashrom or something...

"IP.BIN trunc" - this mode loads part of IP.BIN and launch it from bootstrap 2, itstead of loading full IP.BIN and launch from bootstrap 1.
If loader palced at 0x8c004000 or 0x8c004800, so full IP.BIN can't be loaded, because uses the same memory. Full IP.BIN can be loaded if you use for loader 0x8c000100 (and lower) or high memory.

0x8c0000e4 it's a minimal addr which can be used for ISO Loader. But I recommend use not lower than 0x8c000100.

Yes 0x8c000100 is low memory. Lower better, because high memory the game can rewrite. But some games can rewrite and 0x8c004000...

If game works from 0x8c004000, so better use it. But if you use CDDA emulation, then best choiсe is 0x8c000100 (if game works from it), because for CDDA need additional memory for buffer. So if you use 0x8c000100, then CDDA buffer placed at lower memory too (after loader). If you use 0x8c004000, then CDDA buffer places in some high memory and it's can be conflicts with game. If you use high memory for the loader, then CDDA buffer puts to low memory (in place of IP.BIN).

For speed the memory area doesn't metter!