DirectPlayV0.6

Fix write ROM

DirectPlayV0.5

Support BatteryLess SRAM

DirectPlayV0.4

More backup types
Fix SRAM bank switch

DirectPlayV0.3

For https://github.com/julpage/beggar_socket cart reader

Usage:

create a file "virtaul_rom.gba"

READREALTIME
33554432
SERIAL
AUTO
AUTO

• READREALTIME: magic string
• 33554432: ROM size
• SERIAL: DirectPlay protocol
• AUTO: Device path
• AUTO: Backup type