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/* -*- mode: C++; tab-width: 4 -*- */
/* ===================================================================== *\
Copyright (c) 1999-2001 Palm, Inc. or its subsidiaries.
All rights reserved.
This file is part of the Palm OS Emulator.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
\* ===================================================================== */
#include "EmCommon.h"
#include "EmUAEGlue.h"
#include "EmCPU68K.h" // ProcessException, etc.
#include "EmSession.h" // gSession->Reset
#include "Platform.h" // AllocateMemory
#include "UAE.h" // MakeSR, uae_s32, etc.
// ---------------------------------------------------------------------------
// Glue functions to bridge from UAE-generated code to the implemenations
// we define.
// ---------------------------------------------------------------------------
void customreset (void)
{
EmAssert (gSession);
gSession->ScheduleReset (kResetSoft);
}
void Exception (int nr, emuptr /*oldpc*/)
{
EmAssert (gCPU68K);
gCPU68K->ProcessException ((ExceptionNumber) nr);
}
unsigned long op_illg (uint32 iOpcode)
{
EmAssert (gCPU68K);
gCPU68K->ProcessIllegalInstruction (iOpcode);
return 0;
}
void Software_ProcessLINK (int32 linkSize)
{
EmAssert (gCPU68K);
gCPU68K->ProcessLINK (linkSize);
}
int Software_ProcessRTS (emuptr dest)
{
EmAssert (gCPU68K);
gCPU68K->CheckNewPC (dest);
return gCPU68K->ProcessRTS (dest);
}
int Software_ProcessRTE (emuptr dest)
{
EmAssert (gCPU68K);
gCPU68K->CheckNewPC (dest);
return gCPU68K->ProcessRTE (dest);
}
int Software_ProcessJSR (emuptr oldpc, emuptr dest)
{
EmAssert (gCPU68K);
gCPU68K->CheckNewPC (dest);
return gCPU68K->ProcessJSR (oldpc, dest);
}
int Software_ProcessJSR_Ind (emuptr oldpc, emuptr dest)
{
EmAssert (gCPU68K);
return gCPU68K->ProcessJSR_Ind (oldpc, dest);
}
void Software_CheckNewPC (emuptr dest)
{
EmAssert (gCPU68K);
gCPU68K->CheckNewPC (dest);
}
void Software_CheckStackPointerAssignment ()
{
EmAssert (gCPU68K);
gCPU68K->CheckNewSP (kStackPointerChanged);
}
void Software_CheckStackPointerDecrement ()
{
EmAssert (gCPU68K);
gCPU68K->CheckNewSP (kStackPointerDecremented);
}
void Software_CheckStackPointerIncrement ()
{
EmAssert (gCPU68K);
gCPU68K->CheckNewSP (kStackPointerIncremented);
}
void Software_CheckKernelStack ()
{
EmAssert (gCPU68K);
gCPU68K->CheckNewSP (kStackPointerKernelStackHack);
}
void MakeSR (void)
{
EmAssert (gCPU68K);
gCPU68K->UpdateSRFromRegisters ();
}
void MakeFromSR (void)
{
EmAssert (gCPU68K);
gCPU68K->UpdateRegistersFromSR ();
}
void* xmalloc (size_t size)
{
return Platform::AllocateMemory (size);
}
uint32 get_disp_ea_000 (uint32 base, uint32 dp)
{
int reg = (dp >> 12) & 15;
uae_s32 regd = regs.regs[reg];
if ((dp & 0x800) == 0)
regd = (uae_s32)(uae_s16)regd;
return base + (uae_s8)dp + regd;
}
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