If desired, you can set this to exactly match the Physical Address (for Wii games that is only done for what is called the L2 Cache). This is simply the beginning Virtual Address that you choose to use for the translation. PyiiASMH)īEPI: Block Effective Page Index. The list is formatted to directly be placed into an ASM Code compiler (i.e. Here's a list of SPR numbers for all the BATs. NOTE: Older Dolphin Dev Versions (such as 11xxx series and earlier) will not show proper values for the BATs! Use a newer version! Here's a picture of the BATs while having the emulation randomly paused in MKWii at the Main Menu From personal limited testing, it appears all Wii games setup the BATs in the same universal way. The BATs are mostly configured sometime shortly after the game is booted and a final BAT (DBAT3 for the L2 Cache) is configured after the bootstrap screen. Each BAT is 64 bits (double-word) in length and is split into upper 32 bit and lower 32 bit portions.Īny area or region of memory that a BAT is responsible for is known as a Block. There are 8 BATs available for areas of memory containing instructions (known as IBATs), and 8 BATs available for memory containing data (known as DBATs). Broadway needs to be 'told' how to convert any Virtual Memory Address to its Physical Address equivalent.īAT stands for Block Address Translation. As an Advanced ASM Coder/Dev, you should already know that mem1 and mem2 operate as Virtual Memory. The BAT Registers are responsible for taking a Virtual Address and translating (converting) it to its Physical Address.
There are other PPC-based manuals that explain it, but said explanations are not all that "user-friendly". This won't be useful for Wii Gecko Codes, but I've made this thread due to the Broadway Manual lacking detail on the BAT Registers and how to configure them. Posted by: Vega - 05-23-2022, 02:11 PM - Forum: PowerPC Assembly You have to register before you can post on our site.īing, Google, jygfdhsyufsd, lschlick, Yuri Bacon Mario Kart Wii Gecko Codes, Cheats, & Hacks
0 kommentar(er)
