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PPU stack fixed

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This commit is contained in:
Nekotekina 2015-04-18 03:25:26 +03:00
parent 8bd7823b70
commit b7fd09740b
2 changed files with 5 additions and 4 deletions
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5
rpcs3/Emu/Cell/PPUThread.cpp
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@ -663,7 +663,7 @@ void PPUThread::FastCall2(u32 addr, u32 rtoc)
{
auto old_status = m_status;
auto old_PC = PC;
auto old_stack = GPR[1]; // only saved and restored (may be wrong)
auto old_stack = GPR[1];
auto old_rtoc = GPR[2];
auto old_LR = LR;
auto old_thread = GetCurrentNamedThread();
@ -671,6 +671,7 @@ void PPUThread::FastCall2(u32 addr, u32 rtoc)
m_status = Running;
PC = addr;
GPR[1] -= 0x70; // create stack frame reserved area
GPR[2] = rtoc;
LR = Emu.GetCPUThreadStop();
SetCurrentNamedThread(this);
@ -680,7 +681,7 @@ void PPUThread::FastCall2(u32 addr, u32 rtoc)
m_status = old_status;
PC = old_PC;
GPR[1] = old_stack;
GPR[1] = old_stack; // TODO: error check instead of blind assignment? GPR[1] shouldn't change
GPR[2] = old_rtoc;
LR = old_LR;
SetCurrentNamedThread(old_thread);

4
rpcs3/Emu/SysCalls/CB_FUNC.h
View File

@ -14,7 +14,7 @@ namespace cb_detail
// Current implementation can handle only fixed amount of stack arguments.
// This constant can be increased if necessary.
// It's possible to calculate suitable stack frame size in template, but too complicated.
static const auto FIXED_STACK_FRAME_SIZE = 0x100;
static const auto FIXED_STACK_FRAME_SIZE = 0x90;
template<typename T, _func_arg_type type, int g_count, int f_count, int v_count>
struct _func_arg;
@ -61,7 +61,7 @@ namespace cb_detail
__forceinline static void set_value(PPUThread& CPU, const T& arg)
{
const int stack_pos = 0x70 + (g_count - 9) * 8 - FIXED_STACK_FRAME_SIZE;
const int stack_pos = (g_count - 9) * 8 - FIXED_STACK_FRAME_SIZE;
static_assert(stack_pos < 0, "TODO: Increase fixed stack frame size (arg count limit broken)");
vm::write64(CPU.GPR[1] + stack_pos, cast_to_ppu_gpr<T>(arg));
}