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Merge pull request #399 from magumagu/bsemu-bat 

BS2 emulation: set up a reasonable BAT during startup.
This commit is contained in:
shuffle2 2014-05-29 15:36:28 -07:00
parent e9975cdd63 336b55bbc4
commit 7c09f07f36
2 changed files with 36 additions and 0 deletions
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20
Source/Core/Core/Boot/Boot_BS2Emu.cpp
View File

@ -40,8 +40,15 @@ bool CBoot::EmulatedBS2_GC()
{
INFO_LOG(BOOT, "Faking GC BS2...");
// Set up MSR and the BAT SPR registers.
UReg_MSR& m_MSR = ((UReg_MSR&)PowerPC::ppcState.msr);
m_MSR.FP = 1;
PowerPC::ppcState.spr[SPR_IBAT0U] = 0x800001ff;
PowerPC::ppcState.spr[SPR_IBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_DBAT0U] = 0x800001ff;
PowerPC::ppcState.spr[SPR_DBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_DBAT1U] = 0xc0001fff;
PowerPC::ppcState.spr[SPR_DBAT1L] = 0x0000002a;
// Clear ALL memory
Memory::Clear();
@ -317,8 +324,21 @@ bool CBoot::EmulatedBS2_Wii()
bool apploaderRan = false;
if (VolumeHandler::IsValid() && VolumeHandler::IsWii())
{
// Set up MSR and the BAT SPR registers.
UReg_MSR& m_MSR = ((UReg_MSR&)PowerPC::ppcState.msr);
m_MSR.FP = 1;
PowerPC::ppcState.spr[SPR_IBAT0U] = 0x800001ff;
PowerPC::ppcState.spr[SPR_IBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_IBAT4L] = 0x90001fff;
PowerPC::ppcState.spr[SPR_IBAT4L] = 0x10000002;
PowerPC::ppcState.spr[SPR_DBAT0U] = 0x800001ff;
PowerPC::ppcState.spr[SPR_DBAT0L] = 0x00000002;
PowerPC::ppcState.spr[SPR_DBAT1U] = 0xc0001fff;
PowerPC::ppcState.spr[SPR_DBAT1L] = 0x0000002a;
PowerPC::ppcState.spr[SPR_DBAT4U] = 0x90001fff;
PowerPC::ppcState.spr[SPR_DBAT4L] = 0x10000002;
PowerPC::ppcState.spr[SPR_DBAT5U] = 0xd0001fff;
PowerPC::ppcState.spr[SPR_DBAT5L] = 0x1000002a;
Memory::Write_U32(0x4c000064, 0x80000300); // Write default DFI Handler: rfi
Memory::Write_U32(0x4c000064, 0x80000800); // Write default FPU Handler: rfi

16
Source/Core/Core/PowerPC/Gekko.h
View File

@ -749,6 +749,22 @@ enum
SPR_DBAT2L = 541,
SPR_DBAT3U = 542,
SPR_DBAT3L = 543,
SPR_IBAT4U = 560,
SPR_IBAT4L = 561,
SPR_IBAT5U = 562,
SPR_IBAT5L = 563,
SPR_IBAT6U = 564,
SPR_IBAT6L = 565,
SPR_IBAT7U = 566,
SPR_IBAT7L = 567,
SPR_DBAT4U = 568,
SPR_DBAT4L = 569,
SPR_DBAT5U = 570,
SPR_DBAT5L = 571,
SPR_DBAT6U = 572,
SPR_DBAT6L = 573,
SPR_DBAT7U = 574,
SPR_DBAT7L = 575,
SPR_GQR0 = 912,
SPR_HID0 = 1008,
SPR_HID1 = 1009,