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support68k.c
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support68k.c
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// Copyright (c) 2019, 2020 Dennis van der Boon
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
#include <exec/exec.h>
#include <dos/dos.h>
#include <dos/dosextens.h>
#include <utility/tagitem.h>
#include <dos/dostags.h>
#include <powerpc/powerpc.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/prometheus.h>
#include <dos/doshunks.h>
#include <hardware/custom.h>
#include <hardware/intbits.h>
#include "constants.h"
#include "libstructs.h"
#include "Internals68k.h"
extern APTR OldLoadSeg, OldNewLoadSeg, OldAllocMem, OldAddTask, OldRemTask;
extern struct ExecBase* mySysBase;
extern struct PPCBase* myPPCBase;
APTR RemSysTask;
UBYTE powerlib[] = "powerpc.library\0";
UBYTE ampname[] = "AmigaAMP\0";
UBYTE testlongs[] = "2005_68K_PPCsk_0sk_1\0\0\0\0";
UBYTE CrashMessage[] =
"Task name: '%s' Task address: %08lx\n"
"Exception: %s\n\n"
"SRR0: %08lx SRR1: %08lx MSR: %08lx HID0: %08lx\n"
"PVR: %08lx DAR: %08lx DSISR: %08lx SDR1: %08lx\n"
"DEC: %08lx TBU: %08lx TBL: %08lx XER: %08lx\n"
"CR: %08lx FPSCR: %08lx LR: %08lx CTR: %08lx\n\n"
"R0-R3: %08lx %08lx %08lx %08lx IBAT0: %08lx %08lx\n"
"R4-R7: %08lx %08lx %08lx %08lx IBAT1: %08lx %08lx\n"
"R8-R11: %08lx %08lx %08lx %08lx IBAT2: %08lx %08lx\n"
"R12-R15: %08lx %08lx %08lx %08lx IBAT3: %08lx %08lx\n"
"R16-R19: %08lx %08lx %08lx %08lx DBAT0: %08lx %08lx\n"
"R20-R23: %08lx %08lx %08lx %08lx DBAT1: %08lx %08lx\n"
"R24-R27: %08lx %08lx %08lx %08lx DBAT2: %08lx %08lx\n"
"R28-R31: %08lx %08lx %08lx %08lx DBAT3: %08lx %08lx\n\n\0";
UBYTE msgPanic[] = "Kernel Panic!\0";
UBYTE excSysReset[] = "System Reset\0";
UBYTE excMCheck[] = "Machine Check\0";
UBYTE excDAccess[] = "Data Storage\0";
UBYTE excIAccess[] = "Instruction Storage\0";
UBYTE excInterrupt[] = "External\0";
UBYTE excAlign[] = "Alignment\0";
UBYTE excProgram[] = "Program\0";
UBYTE excFPUn[] = "FPU Unavailable\0";
UBYTE excDecrementer[] = "Decrementer\0";
UBYTE excAltivecUnav[] = "AltiVec Unavailable\0";
UBYTE excSC[] = "System Call\0";
UBYTE excTrace[] = "Trace\0";
UBYTE excFPAssist[] = "Floating Point Assist\0";
UBYTE excPerfMon[] = "Performance Monitor\0";
UBYTE excIABR[] = "Instruction Breakpoint\0";
UBYTE excSysMan[] = "System Management\0";
UBYTE excAVAssist[] = "AltiVec Assist\0";
UBYTE excTherMan[] = "Thermal Management\0";
UBYTE excUnsupported[] = "Unsupported\0";
ULONG ExcStrings[24] = {(ULONG)&excUnsupported, (ULONG)&excUnsupported, (ULONG)&excMCheck,
(ULONG)&excDAccess, (ULONG)&excIAccess, (ULONG)&excInterrupt,
(ULONG)&excAlign, (ULONG)&excProgram, (ULONG)&excFPUn, (ULONG)&excDecrementer,
(ULONG)&excAltivecUnav, (ULONG)&excUnsupported, (ULONG)&excSC,
(ULONG)&excTrace, (ULONG)&excFPAssist, (ULONG)&excPerfMon,
(ULONG)&excUnsupported, (ULONG)&excUnsupported, (ULONG)&excUnsupported,
(ULONG)&excIABR, (ULONG)&excSysMan, (ULONG)&excUnsupported,
(ULONG)&excAVAssist, (ULONG)&excTherMan};
UBYTE FRun68K[] = "Run68K\0";
UBYTE FWaitFor68K[] = "WaitFor68K\0";
UBYTE FAllocVecPPC[] = "AllocVecPPC\0";
UBYTE FFreeVecPPC[] = "FreeVecPPC\0";
UBYTE FCreateTaskPPC[] = "CreateTaskPPC\0";
UBYTE FDeleteTaskPPC[] = "DeleteTaskPPC\0";
UBYTE FFindTaskPPC[] = "FindTaskPPC\0";
UBYTE FInitSemaphorePPC[] = "InitSemaphorePPC\0";
UBYTE FFreeSemaphorePPC[] = "FreeSemaphorePPC\0";
UBYTE FAddSemaphorePPC[] = "AddSemaphorePPC\0";
UBYTE FRemSemaphorePPC[] = "RemSemaphorePPC\0";
UBYTE FObtainSemaphorePPC[] = "ObtainSemaphorePPC\0";
UBYTE FAttemptSemaphorePPC[] = "AttemptSemaphorePPC\0";
UBYTE FReleaseSemaphorePPC[] = "ReleaseSemaphorePPC\0";
UBYTE FFindSemaphorePPC[] = "FindSemaphorePPC\0";
UBYTE FAllocSignalPPC[] = "AllocSignalPPC\0";
UBYTE FFreeSignalPPC[] = "FreeSignalPPC\0";
UBYTE FSetSignalPPC[] = "SetSignalPPC\0";
UBYTE FSignalPPC[] = "SignalPPC\0";
UBYTE FWaitPPC[] = "WaitPPC\0";
UBYTE FSetTaskPriPPC[] = "SetTaskPriPPC\0";
UBYTE FSignal68K[] = "Signal68K\0";
UBYTE FSetCache[] = "SetCache\0";
UBYTE FSetExcHandler[] = "SetExcHandler\0";
UBYTE FRemExcHandler[] = "RemExcHandler\0";
UBYTE FSetHardware[] = "SetHardware\0";
UBYTE FModifyFPExc[] = "ModifyFPExc\0";
UBYTE FWaitTime[] = "WaitTime\0";
UBYTE FChangeStack[] = "ChangeStack\0";
UBYTE FChangeMMU[] = "ChangeMMU\0";
UBYTE FGetInfo[] = "GetInfo\0";
UBYTE FCreateMsgPortPPC[] = "CreateMsgPortPPC\0";
UBYTE FDeleteMsgPortPPC[] = "DeleteMsgPortPPC\0";
UBYTE FAddPortPPC[] = "AddPortPPC\0";
UBYTE FRemPortPPC[] = "RemPortPPC\0";
UBYTE FFindPortPPC[] = "FindPortPPC\0";
UBYTE FWaitPortPPC[] = "WaitPortPPC\0";
UBYTE FPutMsgPPC[] = "PutMsgPPC\0";
UBYTE FGetMsgPPC[] = "GetMsgPPC\0";
UBYTE FReplyMsgPPC[] = "ReplyMsgPPC\0";
UBYTE FCopyMemPPC[] = "CopyMemPPC\0";
UBYTE FAllocXMsgPPC[] = "AllocXMsgPPC\0";
UBYTE FFreeXMsgPPC[] = "FreeXMsgPPC\0";
UBYTE FPutXMsgPPC[] = "PutXMsgPPC\0";
UBYTE FGetSysTimePPC[] = "GetSysTimePPC\0";
UBYTE FSetReplyPortPPC[] = "SetReplyPortPPC\0";
UBYTE FSnoopTask[] = "SnoopTask\0";
UBYTE FEndSnoopTask[] = "EndSnoopTask\0";
UBYTE FGetHALInfo[] = "GetHALInfo\0";
UBYTE FSetScheduling[] = "SetScheduling\0";
UBYTE FFindTaskByID[] = "FindTaskByID\0";
UBYTE FSetNiceValue[] = "SetNiceValue\0";
UBYTE FTrySemaphorePPC[] = "TrySemaphorePPC\0";
UBYTE FSetExceptPPC[] = "SetExceptPPC\0";
UBYTE FObtainSemaphoreSharedPPC[] = "ObtainSemaphoreSharedPPC\0";
UBYTE FAttemptSemaphoreSharedPPC[] = "AttemptSempahoreSharedPPC\0";
UBYTE FProcurePPC[] = "ProcurePPC\0";
UBYTE FVacatePPC[] = "VacatePPC\0";
UBYTE FCreatePoolPPC[] = "CreatePoolPPC\0";
UBYTE FDeletePoolPPC[] = "DeletePoolPPC\0";
UBYTE FAllocPooledPPC[] = "AllocPooledPPC\0";
UBYTE FFreePooledPPC[] = "FreePooledPPC\0";
UBYTE FRawDoFmtPPC[] = "RawDoFmtPPC\0";
UBYTE FPutPublicMsgPPC[] = "PutPublicMsgPPC\0";
UBYTE FAddUniquePortPPC[] = "AddUniquePortPPC\0";
UBYTE FAddUniqueSemaphorePPC[] = "AddUniqueSemaphorePPC\0";
UBYTE FAllocatePPC[] = "AllocatePPC\0";
UBYTE FDeallocatePPC[] = "DeallocatePPC\0";
#if 0
UBYTE FSPrintF[] = "SPrintF\0";
UBYTE FInsertPPC[] = "InsertPPC\0";
UBYTE FAddHeadPPC[] = "AddHeadPPC\0";
UBYTE FAddTailPPC[] = "AddtailPPC\0";
UBYTE FRemovePPC[] = "RemovePPC\0";
UBYTE FRemHeadPPC[] = "RemHeadPPC\0";
UBYTE FRemTailPPC[] = "RemTailPPC\0";
UBYTE FEnqueuePPC[] = "EnqueuePPC\0";
UBYTE FFindNamePPC[] = "FindNamePPC\0";
UBYTE FFindTagItemPPC[] = "FindTagItemPPC\0";
UBYTE FGetTagDataPPC[] = "GetTagItemPPC\0";
UBYTE FNextTagItemPPC[] = "NextTagItemPPC\0";
UBYTE FSuper[] = "Super\0";
UBYTE FUser[] = "User\0";
UBYTE FLockTaskList[] = "LockTaskList\0";
UBYTE FUnLockTaskList[] = "UnlockTaskList\0";
UBYTE FSetExcMMU[] = "SetExcMMU\0";
UBYTE FClearExcMMU[] = "ClearExcMMU\0";
UBYTE FFreeAllMem[] = "FreeAllMem\0";
UBYTE FAddTimePPC[] = "AddTimePPC\0";
UBYTE FSubTimePPC[] = "SubTimePPC\0";
UBYTE FCmpTimePPC[] = "CmpTimePPC\0";
UBYTE FNewListPPC[] = "NewListPPC\0";
UBYTE FCauseInterrupt[] = "CauseInterrupt\0";
UBYTE FAllocPrivateMem[] = "AllocPrivateMem\0";
UBYTE FFreePrivateMem[] = "FreePrivateMem\0";
UBYTE FResetPPC[] = "ResetPPC\0";
UBYTE FIsExceptionMode[] = "IsExceptionMode\0";
UBYTE FRun68KLowLevel[] = "Run68KLowLevel\0";
#endif
ULONG FuncStrings[68] = {(ULONG)&FRun68K, (ULONG)&FWaitFor68K, (ULONG)&FAllocVecPPC,
(ULONG)&FFreeVecPPC, (ULONG)&FCreateTaskPPC, (ULONG)&FDeleteTaskPPC,
(ULONG)&FFindTaskPPC, (ULONG)&FInitSemaphorePPC, (ULONG)&FFreeSemaphorePPC,
(ULONG)&FAddSemaphorePPC, (ULONG)&FRemSemaphorePPC, (ULONG)&FObtainSemaphorePPC,
(ULONG)&FAttemptSemaphorePPC, (ULONG)&FReleaseSemaphorePPC, (ULONG)&FFindSemaphorePPC,
(ULONG)&FAllocSignalPPC, (ULONG)&FFreeSignalPPC, (ULONG)&FSetSignalPPC,
(ULONG)&FSignalPPC, (ULONG)&FWaitPPC, (ULONG)&FSetTaskPriPPC,
(ULONG)&FSignal68K, (ULONG)&FSetCache, (ULONG)&FSetExcHandler,
(ULONG)&FRemExcHandler, (ULONG)&FSetHardware, (ULONG)&FModifyFPExc,
(ULONG)&FWaitTime, (ULONG)&FChangeStack, (ULONG)&FChangeMMU,
(ULONG)&FGetInfo, (ULONG)&FCreateMsgPortPPC, (ULONG)&FDeleteMsgPortPPC,
(ULONG)&FAddPortPPC, (ULONG)&FRemPortPPC, (ULONG)&FFindPortPPC,
(ULONG)&FWaitPortPPC, (ULONG)&FPutMsgPPC, (ULONG)&FGetMsgPPC,
(ULONG)&FReplyMsgPPC, (ULONG)&FCopyMemPPC, (ULONG)&FAllocXMsgPPC,
(ULONG)&FFreeXMsgPPC, (ULONG)&FPutXMsgPPC, (ULONG)&FGetSysTimePPC,
(ULONG)&FSetReplyPortPPC, (ULONG)&FSnoopTask, (ULONG)&FEndSnoopTask,
(ULONG)&FGetHALInfo, (ULONG)&FSetScheduling, (ULONG)&FFindTaskByID,
(ULONG)&FSetNiceValue, (ULONG)&FTrySemaphorePPC, (ULONG)&FSetExceptPPC,
(ULONG)&FObtainSemaphoreSharedPPC, (ULONG)&FAttemptSemaphoreSharedPPC, (ULONG)&FProcurePPC,
(ULONG)&FVacatePPC, (ULONG)&FCreatePoolPPC, (ULONG)&FDeletePoolPPC,
(ULONG)&FAllocPooledPPC, (ULONG)&FFreePooledPPC, (ULONG)&FRawDoFmtPPC,
(ULONG)&FPutPublicMsgPPC, (ULONG)&FAddUniquePortPPC, (ULONG)&FAddUniqueSemaphorePPC,
(ULONG)&FAllocatePPC,(ULONG)FDeallocatePPC};
#ifdef DEBUG
ULONG dsi_Count = 0;
struct dsiInfo
{
ULONG dsi_Lower;
ULONG dsi_Upper;
ULONG dsi_Total;
};
struct dsiInfo di[10];
ULONG countDSI(__reg("d0") ULONG dsi_Address)
{
ULONG init = 0;
ULONG result = 1;
struct PPCBase* PowerPCBase = myPPCBase;
if (!(dsi_Count))
{
struct ExecBase* SysBase = mySysBase;
struct MemHeader* currMem = (struct MemHeader*)SysBase->MemList.lh_Head;
struct MemHeader* nextMem;
while (nextMem = (struct MemHeader*)currMem->mh_Node.ln_Succ)
{
di[init].dsi_Lower = (ULONG)(currMem->mh_Lower);
di[init].dsi_Upper = (ULONG)(currMem->mh_Upper);
di[init].dsi_Total = 0;
if (init++ == 9)
{
break;
}
currMem = nextMem;
}
while (init < 10)
{
di[init].dsi_Lower = 0;
di[init].dsi_Upper = 0;
di[init].dsi_Total = 0;
init++;
}
}
init = 0;
while (di[init].dsi_Lower)
{
if ((di[init].dsi_Lower <= dsi_Address) && (di[init].dsi_Upper >= dsi_Address))
{
di[init].dsi_Total += 1;
break;
}
init++;
}
if (!(di[init].dsi_Lower))
{
if (dsi_Address != 4)
{
di[9].dsi_Total += 1;
result = 0;
mySPrintF68K((struct PPCBase*)PowerPCBase, "Detected DSI hit outside of memory bounds at %08lx\n\0", (APTR)&dsi_Address);
}
}
dsi_Count += 1;
if (!(dsi_Count & 0x3ff))
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "Overview of previous 1024 DSI hits\n\0",0);
init = 0;
while (di[init].dsi_Lower)
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "DSI Count %08lx - %08lx: %ld\n\0", (APTR)&di[init]);
init += 1;
}
if (di[9].dsi_Total)
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "DSI Count unknown: %ld\n\0", (APTR)&di[9].dsi_Total);
}
mySPrintF68K((struct PPCBase*)PowerPCBase, "End of report\n\0",0);
dsi_Count = 0;
}
return result;
}
#endif
/********************************************************************************************
*
* Task patch functions. To remove PPC tasks and free memory when the 68K part is ended
*
*********************************************************************************************/
void commonRemTask(__reg("a1") struct Task* myTask, __reg("d0") ULONG flag, __reg("a6") struct ExecBase* SysBase)
{
if (!(myTask))
{
myTask = SysBase->ThisTask;
}
if (myTask->tc_Node.ln_Type == NT_PROCESS)
{
struct PrivatePPCBase* PowerPCBase = (struct PrivatePPCBase*)myPPCBase;
struct MirrorTask* currMir = (struct MirrorTask*)PowerPCBase->pp_MirrorList.mlh_Head;
struct MirrorTask* nxtMir;
while (nxtMir = (struct MirrorTask*)currMir->mt_Node.mln_Succ)
{
if (currMir->mt_Task == myTask)
{
if (!(flag))
{
struct MsgFrame* myFrame = CreateMsgFrame(PowerPCBase);
myFrame->mf_Identifier = ID_END;
myFrame->mf_PPCTask = currMir->mt_PPCTask;
SendMsgFrame(PowerPCBase, myFrame);
}
Disable();
Remove((struct Node*)currMir);
Enable();
DeleteMsgPort(currMir->mt_Port);
FreeVec(currMir);
break;
}
currMir = nxtMir;
}
}
return;
}
/********************************************************************************************/
PATCH68K void SysExitCode(void)
{
struct Task* myTask;
void (*RemSysTask_ptr)() = RemSysTask;
struct ExecBase* SysBase = myPPCBase->PPC_SysLib;
myTask = SysBase->ThisTask;
commonRemTask(myTask, 0, SysBase);
RemSysTask_ptr();
return;
}
/********************************************************************************************/
PATCH68K void patchRemTask(__reg("a1") struct Task* myTask, __reg("a6") struct ExecBase* SysBase)
{
void (*RemTask_ptr)(__reg("a1") struct Task*, __reg("a6") struct ExecBase*) = OldRemTask;
commonRemTask (myTask, 0, SysBase);
RemTask_ptr(myTask, SysBase);
return;
}
/********************************************************************************************/
PATCH68K APTR patchAddTask(__reg("a1") struct Task* myTask, __reg("a2") APTR initialPC,
__reg("a3") APTR finalPC, __reg("a6") struct ExecBase* SysBase)
{
APTR (*AddTask_ptr)(__reg("a1") struct Task*, __reg("a2") APTR,
__reg("a3") APTR, __reg("a6") struct ExecBase*) = OldAddTask;
if (myTask->tc_Node.ln_Type == NT_PROCESS)
{
if (!(finalPC))
{
finalPC = (APTR)&patchRemTask;
}
else
{
if (!((ULONG)finalPC & 0xff000000))
{
RemSysTask = finalPC;
finalPC = (APTR)&SysExitCode;
}
}
}
return ((*AddTask_ptr)(myTask, initialPC, finalPC, SysBase));
}
/********************************************************************************************
*
* Allocate memory patch to load PPC (related) code to PPC memory
*
*********************************************************************************************/
PATCH68K APTR patchAllocMem(__reg("d0") ULONG byteSize, __reg("d1") ULONG attributes,
__reg("a6") struct ExecBase* SysBase)
{
APTR (*AllocMem_ptr)(__reg("d0") ULONG, __reg("d1") ULONG, __reg("a6") struct ExecBase*) = OldAllocMem;
//AmigaAMP
USHORT testAttr = (USHORT)attributes;
if (testAttr)
{
if ( (testAttr & MEMF_CHIP) || !(testAttr & MEMF_PUBLIC))
{
return ((*AllocMem_ptr)(byteSize, attributes, SysBase));
}
} //TB_WARN (A1200) not yet implemented
struct Task* myTask = SysBase->ThisTask;
char * myName = NULL;
ULONG highTaskByte = (ULONG)(myTask) & 0xf0000000;
if (highTaskByte)
{
highTaskByte &= 0xe0000000;
struct PrivatePPCBase *privBase = (struct PrivatePPCBase*) myPPCBase;
ULONG highBaseByte = (ULONG)(privBase->pp_PPCMemBase) & 0xe0000000;
if (!(highTaskByte ^= highBaseByte))
{
myTask->tc_Flags |= TF_PPC;
}
}
struct Process* myProcess = (struct Process*)myTask;
if ((myTask->tc_Node.ln_Type != NT_PROCESS) || ((myTask->tc_Node.ln_Type == NT_PROCESS) && ((myProcess->pr_CLI == NULL))))
{
myName = myTask->tc_Node.ln_Name;
while (myName[0] != 0)
{
myName ++;
}
myName -= 5;
}
else
{
struct CommandLineInterface* myCLI;
if (myCLI = (struct CommandLineInterface *)((ULONG)(myProcess->pr_CLI << 2)))
{
if (myName = (char *)(ULONG)(myCLI->cli_CommandName << 2))
{
UBYTE offset = myName[0] - 3;
if (!(offset & 0x80))
{
myName += offset;
}
}
}
}
ULONG testValue;
ULONG longnum = 0;
if (myName)
{
while (testValue = *((ULONG*)testlongs + longnum))
{
if (testValue == *((ULONG*)myName))
{
attributes |= MEMF_PPC;
return ((*AllocMem_ptr)(byteSize, attributes, SysBase));
}
longnum += 1;
}
if ((*((LONG*)myName) == 0x70656564) || ((*((ULONG*)myName) == 0x2e657865) && (*((ULONG*)myName - 1) == 0x70616365)))
{
return ((*AllocMem_ptr)(byteSize, attributes, SysBase));
}
}
if (myTask->tc_Flags & TF_PPC)
{
attributes |= MEMF_PPC;
}
return ((*AllocMem_ptr)(byteSize, attributes, SysBase));
}
/********************************************************************************************
*
* Executable loading patches to load PPC (related) code to PPC memory
* (AUTODOCS ARE WRONG, called with d1, d2, d3 and not d1, a0, d0)
*
*********************************************************************************************/
LONG ReadFunc(__reg("d1") BPTR readhandle, __reg("d2") APTR buffer, __reg("d3") LONG length, __reg("a6") struct DosLibrary* DOSBase)
{
LONG result;
ULONG* myBuffer = (ULONG*)buffer;
result = Read(readhandle, buffer, length);
if (!(myPPCBase->PPC_Flags & 0x4))
{
if ((myBuffer[0] == HUNK_HEADER) && (myBuffer[1] == NULL) && (myBuffer[3] == NULL) && (myBuffer[2] - myBuffer[4] - 1 == NULL))
{
if (((myBuffer[5] == 0x71E) && (myBuffer[6] == 0x710)) || //Cybermand
((myBuffer[5] == 0x84E) && (myBuffer[6] == 0xEE)) || //CyberPi
((myBuffer[5] == 0x9468) && (myBuffer[6] == 0x4F3))) //Radeon
{
return result;
}
else if (!(myBuffer[5] & (1<<HUNKB_CHIP)))
{
myBuffer[5] |= (1<<HUNKB_FAST);
}
}
}
return result;
}
/********************************************************************************************/
APTR AllocFunc(__reg("d0") ULONG size, __reg("d1") ULONG flags, __reg("a6") struct ExecBase* SysBase)
{
APTR memBlock;
if (!(myPPCBase->PPC_Flags & 0x4))
{
if ((flags == (MEMF_PUBLIC | MEMF_FAST)) || (flags == (MEMF_PUBLIC | MEMF_CHIP)))
{
SysBase->ThisTask->tc_Flags &= ~TF_PPC;
memBlock = AllocMem(size, flags);
SysBase->ThisTask->tc_Flags |= TF_PPC;
return memBlock;
}
}
SysBase->ThisTask->tc_Flags |= TF_PPC;
flags = (flags & (MEMF_REVERSE | MEMF_CLEAR)) | MEMF_PUBLIC | MEMF_PPC;
memBlock = AllocMem(size, flags);
return memBlock;
}
void FreeFunc(__reg("a1") APTR memory, __reg("d0") ULONG size, __reg("a6") struct ExecBase* SysBase)
{
FreeMem(memory, size);
return;
}
/********************************************************************************************/
BPTR myLoader(STRPTR name) // -1 = try normal 0 = fail
{
struct FuncTable
{
APTR ReadFunc;
APTR AllocFunc;
APTR FreeFunc;
ULONG Stack;
};
struct FuncTable myFuncTable;
struct ExecBase* SysBase = myPPCBase->PPC_SysLib;
struct DosLibrary* DOSBase = myPPCBase->PPC_DosLib;
BPTR myLock, mySeglist;
struct FileInfoBlock* myFIB;
LONG myProt;
if (*((ULONG*)SysBase->ThisTask->tc_Node.ln_Name) == 0x44656649) //DefI(cons)
{
return -1;
}
SysBase->ThisTask->tc_Flags &= ~TF_PPC;
if (myLock = Open(name, MODE_OLDFILE))
{
if (myFIB = (struct FileInfoBlock*)AllocDosObject(DOS_FIB, NULL))
{
if (ExamineFH(myLock, myFIB))
{
myProt = myFIB->fib_Protection;
FreeDosObject(DOS_FIB, (APTR)myFIB);
if (myProt & 0x20000)
{
Close(myLock);
return -1;
}
else
{
SysBase->ThisTask->tc_Flags |= TF_PPC;
myFuncTable.ReadFunc = (APTR)&ReadFunc;
myFuncTable.AllocFunc = (APTR)&AllocFunc;
myFuncTable.FreeFunc = (APTR)&FreeFunc;
myFuncTable.Stack = 0;
mySeglist = InternalLoadSeg(myLock, NULL, (LONG*)&myFuncTable, (LONG*)&myFuncTable.Stack);
Close(myLock);
if (mySeglist < 0)
{
UnLoadSeg(!mySeglist);
SetProtection(name, myProt | 0x20000);
SysBase->ThisTask->tc_Flags &= ~TF_PPC;
return -1;
}
else if (!(mySeglist))
{
return NULL;
}
else
{
if (myProt & 0x10000)
{
return mySeglist;
}
BPTR testSeglist = mySeglist;
while (testSeglist)
{
ULONG curPointer = (ULONG)testSeglist << 2;
UBYTE* mySegData = (UBYTE*)(curPointer + 4);
LONG mySegSize = (*((ULONG*)(curPointer - 4)));
testSeglist = (*((ULONG*)(curPointer)));
for (int i=mySegSize; i >= 0; i--)
{
ULONG* myLongData = (ULONG*)mySegData;
if (myLongData[0] == 0x52414345) // "RACE"
{
SetProtection(name, myProt | 0x10000);
return mySeglist;
}
for (int i=0; i<20; i++)
{
if (mySegData[i] == powerlib[i])
{
if (powerlib[i+1] == 0)
{
SetProtection(name, myProt | 0x10000);
return mySeglist;
}
}
else
{
break;
}
}
for (int i=0; i<20; i++)
{
if (mySegData[i] == ampname[i])
{
if (ampname[+1] == 0)
{
SetProtection(name, myProt | 0x10000);
return mySeglist;
}
}
else
{
break;
}
}
mySegData += 1;
}
}
UnLoadSeg(mySeglist);
SetProtection(name, myProt | 0x20000);
SysBase->ThisTask->tc_Flags &= ~TF_PPC;
}
}
}
}
}
return -1;
}
/********************************************************************************************/
PATCH68K BPTR patchLoadSeg(__reg("d1") STRPTR name, __reg("a6") struct DosLibrary* DOSBase)
{
BPTR (*LoadSeg_ptr)(__reg("d1") STRPTR, __reg("a6") struct DosLibrary*) = OldLoadSeg;
BPTR mySegList;
mySegList = myLoader(name);
if (mySegList == -1)
{
return ((*LoadSeg_ptr)(name, DOSBase));
}
return mySegList;
}
/********************************************************************************************/
PATCH68K BPTR patchNewLoadSeg(__reg("d1") STRPTR file, __reg("d2") struct TagItem* tags,
__reg("a6") struct DosLibrary* DOSBase)
{
BPTR (*NewLoadSeg_ptr)(__reg("d1") STRPTR, __reg("d2") struct TagItem*, __reg("a6") struct DosLibrary*) = OldNewLoadSeg;
BPTR mySegList;
if (tags)
{
return ((*NewLoadSeg_ptr)(file, tags, DOSBase));
}
mySegList = myLoader(file);
if (mySegList == -1)
{
return ((*NewLoadSeg_ptr)(file, tags, DOSBase));
}
return mySegList;
}
/********************************************************************************************
*
* Process that handles messages from the PPC.
*
*********************************************************************************************/
FUNC68K void MirrorTask(void)
{
struct PrivatePPCBase* PowerPCBase = (struct PrivatePPCBase*)myPPCBase;
struct ExecBase* SysBase = PowerPCBase->pp_PowerPCBase.PPC_SysLib;
struct MsgFrame* myFrame;
struct MsgPort* mirrorPort;
struct Task* myTask = SysBase->ThisTask;
myTask->tc_Flags &= ~TF_PPC;
if (!(mirrorPort = CreateMsgPort()))
{
PrintError(SysBase, "General memory allocation error");
return;
}
myTask->tc_Flags |= TF_PPC;
ULONG mySignal = Wait(SIGBREAKF_CTRL_F);
if (myFrame = (struct MsgFrame*)myTask->tc_UserData)
{
PutMsg(mirrorPort, (struct Message*)myFrame);
}
ULONG andTemp = ~(0xfff + (1 << (ULONG)mirrorPort->mp_SigBit));
while (1)
{
mySignal = Wait((ULONG)myTask->tc_SigAlloc & 0xfffff000);
if (mySignal & (1 << (ULONG)mirrorPort->mp_SigBit))
{
myTask->tc_SigRecvd |= (mySignal & andTemp);
while (myFrame = (struct MsgFrame*)GetMsg(mirrorPort))
{
if (myFrame->mf_Identifier == ID_T68K)
{
myTask->tc_SigRecvd |= myFrame->mf_Signals;
myFrame->mf_MirrorPort = mirrorPort;
Run68KCode(SysBase, &myFrame->mf_PPCArgs);
struct MsgFrame* doneFrame = CreateMsgFrame(PowerPCBase);
CopyMemQuick((APTR)myFrame, (APTR)doneFrame, sizeof(struct MsgFrame));
doneFrame->mf_Identifier = ID_DONE;
doneFrame->mf_Signals = myTask->tc_SigRecvd & andTemp;
doneFrame->mf_Arg[0] = (ULONG)myTask;
doneFrame->mf_Arg[1] = myTask->tc_SigAlloc;
myTask->tc_SigRecvd ^= doneFrame->mf_Signals;
SendMsgFrame(PowerPCBase, doneFrame);
FreeMsgFrame(PowerPCBase, myFrame);
}
else if (myFrame->mf_Identifier == ID_END)
{
FreeMsgFrame(PowerPCBase, myFrame);
return;
}
else
{
FreeMsgFrame(PowerPCBase, myFrame);
PrintError(SysBase, "68K mirror task received illegal command packet");
}
}
}
else if (mySignal & andTemp)
{
struct MsgFrame* crossFrame = CreateMsgFrame(PowerPCBase);
crossFrame->mf_Identifier = ID_LLPP;
crossFrame->mf_Signals = (mySignal & andTemp);
crossFrame->mf_Arg[0] = (ULONG)myTask;
SendMsgFrame(PowerPCBase, crossFrame);
}
}
}
/********************************************************************************************/
FUNC68K void MasterControl(void)
{
struct PrivatePPCBase* PowerPCBase = (struct PrivatePPCBase*)myPPCBase;
struct ExecBase* SysBase = PowerPCBase->pp_PowerPCBase.PPC_SysLib;
struct DosLibrary* DOSBase = PowerPCBase->pp_PowerPCBase.PPC_DosLib;
struct MsgFrame* myFrame;
struct MsgPort* mcPort;
struct PPCZeroPage* myZP = (struct PPCZeroPage*)PowerPCBase->pp_PPCMemBase;
if (!(mcPort = CreateMsgPort()))
{
PrintError(SysBase, "General memory allocation error");
return;
}
PowerPCBase->pp_MasterControl = mcPort;
ULONG mySignal = 0;
while (!(mySignal & SIGBREAKF_CTRL_F))
{
mySignal = Wait(SIGBREAKF_CTRL_F);
}
struct Task* myTask = SysBase->ThisTask;
//struct InternalConsts *myData = (struct InternalConsts*)myTask->tc_UserData;
myZP->zp_Status = STATUS_INIT;
while (1)
{
WaitPort(mcPort);
while (myFrame = (struct MsgFrame*)GetMsg(mcPort))
{
myTask->tc_Flags |= TF_PPC;
if (myFrame->mf_Message.mn_Node.ln_Type == NT_REPLYMSG)
{
if(myFrame->mf_Message.mn_Node.ln_Name)
{
struct MsgFrame* newFrame = CreateMsgFrame(PowerPCBase);
newFrame->mf_Identifier = ID_XMSG;
newFrame->mf_Arg[0] = (ULONG)myFrame;
newFrame->mf_Message.mn_ReplyPort = (struct MsgPort*)myFrame->mf_Message.mn_Node.ln_Name;
myFrame->mf_Message.mn_ReplyPort = (struct MsgPort*)myFrame->mf_Message.mn_Node.ln_Name;
SendMsgFrame(PowerPCBase, newFrame);
}
else
{
PrintError(SysBase, "MasterControl received illegal reply message");
}
}
else
{
switch (myFrame->mf_Identifier)
{
case ID_T68K:
{
char *ppcName = myFrame->mf_PPCTask->tp_Task.tc_Node.ln_Name;
char Name68k[255];
char nameAppend[] = "_68K\0";
UBYTE offset = 0;
while (Name68k[offset] = ppcName[offset])
{
offset++;
}
CopyMem(&nameAppend, &Name68k[offset], 5);
struct Process* myProc;
myTask->tc_Flags &= ~TF_PPC;
myProc = CreateNewProcTags(
NP_Entry, (ULONG)&MirrorTask,
NP_Name, &Name68k,
NP_Priority, 0,
NP_StackSize, 0x20000,
TAG_DONE);
myTask->tc_Flags |= TF_PPC;
if(!(myProc))
{
PrintError(SysBase, "Could not start 68K mirror process");
break;
}
myProc->pr_Task.tc_UserData = (APTR)myFrame;
myProc->pr_Task.tc_SigAlloc = myFrame->mf_Arg[0];
Signal((struct Task*)myProc, SIGBREAKF_CTRL_F);
break;
}
case ID_LL68:
{
ULONG (*DoLL68K_ptr)(__reg("d0") ULONG, __reg("d1") ULONG, __reg("a0") ULONG,
__reg("a1") ULONG, __reg("a6") ULONG) =
(APTR)(myFrame->mf_PPCArgs.PP_Regs[0] + myFrame->mf_PPCArgs.PP_Regs[1]);
ULONG result = (*DoLL68K_ptr)(myFrame->mf_PPCArgs.PP_Regs[4], myFrame->mf_PPCArgs.PP_Regs[5],
myFrame->mf_PPCArgs.PP_Regs[2], myFrame->mf_PPCArgs.PP_Regs[3],
myFrame->mf_PPCArgs.PP_Regs[0]);
struct MsgFrame* newFrame = CreateMsgFrame(PowerPCBase);
newFrame->mf_PPCArgs.PP_Regs[0] = result;
newFrame->mf_Identifier = ID_DNLL;
newFrame->mf_PPCTask = myFrame->mf_PPCTask;
SendMsgFrame(PowerPCBase, newFrame);
FreeMsgFrame(PowerPCBase, myFrame);
break;
}
#if 0
case ID_____:
{
void (*FreeMem_ptr)(__reg("d0") ULONG, __reg("a1") ULONG, __reg("a6") struct ExecBase*) =
(APTR)(myFrame->mf_PPCArgs.PP_Regs[0] + myFrame->mf_PPCArgs.PP_Regs[1]);
(*FreeMem_ptr)(myFrame->mf_PPCArgs.PP_Regs[4], myFrame->mf_PPCArgs.PP_Regs[3], SysBase);
FreeMsgFrame(PowerPCBase, myFrame);
break;
}
#endif
case ID_DBGS:
{
struct DebugArgs* dbargs = (struct DebugArgs*)&myFrame->mf_PPCArgs;
ULONG numargs = dbargs->db_Function >> 8;
dbargs->db_Function = FuncStrings[(dbargs->db_Function & 0xff)];
switch (numargs)
{
case 1:
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s(%08lx)\n\0", (APTR)dbargs);
break;
}
case 2:
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s(%08lx, %08lx)\n\0", (APTR)dbargs);
break;
}
case 3:
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s(%08lx, %08lx, %08lx)\n\0", (APTR)dbargs);
break;
}
case 4:
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s(%08lx, %08lx, %08lx, %08lx)\n\0", (APTR)dbargs);
break;
}
default:
{
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s()\n\0", (APTR)dbargs);
break;
}
}
FreeMsgFrame(PowerPCBase, myFrame);
break;
}
case ID_DBGE:
{
struct DebugArgs* dbargs = (struct DebugArgs*)&myFrame->mf_PPCArgs;
dbargs->db_Function = FuncStrings[(dbargs->db_Function & 0xff)];
mySPrintF68K((struct PPCBase*)PowerPCBase, "%s -> %s() = %08lx\n\0", (APTR)dbargs);
FreeMsgFrame(PowerPCBase, myFrame);
break;
}
case ID_CRSH:
{
struct DosLibrary* DOSBase = PowerPCBase->pp_PowerPCBase.PPC_DosLib;
FreeMsgFrame(PowerPCBase, myFrame);
BPTR excWindow;
if (!(excWindow = Open("CON:0/20/680/250/PowerPC Exception/AUTO/CLOSE/WAIT/INACTIVE", MODE_NEWFILE)))
{