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/*
* demdisp.c - SVC dispatch module * * Modification History: * * Sudeepb 31-Mar-1991 Created */
#include "dem.h"
#include <stdio.h>
#include <softpc.h>
#include <dbgsvc.h>
#if DBG
PCHAR aSVCNames[] = { "demChgFilePtr", "demChMod", "demClose", "demCreate", "demCreateDir", "demDelete", "demDeleteDir", "demDeleteFCB", "demFileTimes", "demFindFirst", "demFindFirstFCB", "demFindNext", "demFindNextFCB", "demGetBootDrive", "demGetDriveFreeSpace", "demGetDrives", "demGSetMediaID", "demLoadDos", "demOpen", "demQueryCurrentDir", "demQueryDate", "demQueryTime", "demRead", "demRename", "demSetCurrentDir", "demSetDate", "demSetDefaultDrive", "demSetDTALocation", "demSetTime", "demSetV86KernelAddr", "demWrite", "demGetDriveInfo", "demRenameFCB", "demIOCTL", "demCreateNew", "DemDiskReset", "DemSetDPB", "DemGetDPB", "DemSleazeFunc", "demCommit", "DemExtHandle", "DemAbsDRD", "DemAbsDWRT", "DemGsetCDPG", "DemCreateFCB", "DemOpenFCB", "DemCloseFCB", "DemFCBIO", "DemDate16", "DemGetFileInfo", "DemSetHardErrorInfo", "DemRetry", "DemLoadDosAppSym", "DemFreeDosAppSym", "DemEntryDosApp", "DemDOSDispCall", "DemDOSDispRet", "DemOutputString", "DemInputString", "DemIsDebug", "DemTerminatePDB", "DemExitVDM", "DemWOWFiles", "DemLockOper", "demNotYetImplemented", "DemGetComputerName", "DemFastRead", "DemFastWrite", "DemCheckPath", "DemSystemSymbolOp", "DemGetDpbList", "DemPipeFileDataEOF", "DemPipeFileEOF", "DemLFNEntry", "DemSetDosVarLocation"};
#endif // DBG
DWORD fShowSVCMsg = 0;ULONG CurrentISVC;
PFNSVC apfnSVC [] = { demChgFilePtr, //SVC_DEMCHGFILEPTR
demChMod, //SVC_DEMCHMOD
demClose, //SVC_DEMCLOSE
demCreate, //SVC_DEMCREATE
demCreateDir, //SVC_DEMCREATEDIR
demDelete, //SVC_DEMDELETE
demDeleteDir, //SVC_DEMDELETEDIR
demDeleteFCB, //SVC_DEMDELETEFCB
demFileTimes, //SVC_DEMFILETIMES
demFindFirst, //SVC_DEMFINDFIRST
demFindFirstFCB, //SVC_DEMFINDFIRSTFCB
demFindNext, //SVC_DEMFINDNEXT
demFindNextFCB, //SVC_DEMFINDNEXTFCB
demGetBootDrive, //SVC_DEMGETBOOTDRIVE
demGetDriveFreeSpace, //SVC_DEMGETDRIVEFREESPACE
demGetDrives, //SVC_DEMGETDRIVES
demGSetMediaID, //SVC_DEMGSETMEDIAID
demLoadDos, //SVC_DEMLOADDOS
demOpen, //SVC_DEMOPEN
demQueryCurrentDir, //SVC_DEMQUERYCURRENTDIR
demQueryDate, //SVC_DEMQUERYDATE
demQueryTime, //SVC_DEMQUERYTIME
demRead, //SVC_DEMREAD
demRename, //SVC_DEMRENAME
demSetCurrentDir, //SVC_DEMSETCURRENTDIR
demSetDate, //SVC_DEMSETDATE
demSetDefaultDrive, //SVC_DEMSETDEFAULTDRIVE
demSetDTALocation, //SVC_DEMSETDTALOCATION
demSetTime, //SVC_DEMSETTIME
demSetV86KernelAddr, //SVC_DEMSETV86KERNELADDR
demWrite, //SVC_DEMWRITE
demNotYetImplemented, //SVC_GETDRIVEINFO
demRenameFCB, //SVC_DEMRENAMEFCB
demIOCTL, //SVC_DEMIOCTL
demCreateNew, //SVC_DEMCREATENEW
demDiskReset, //SVC_DEMDISKRESET
demNotYetImplemented, //SVC_DEMSETDPB
demGetDPB, //SVC_DEMGETDPB
demNotYetImplemented, //SVC_DEMSLEAZEFUNC
demCommit, //SVC_DEMCOMMIT
demNotYetImplemented, //SVC_DEMEXTHANDLE
demAbsRead, //SVC_DEMABSDRD
demAbsWrite, //SVC_DEMABSDWRT
demNotYetImplemented, //SVC_DEMGSETCDPG
demCreateFCB, //SVC_DEMCREATEFCB
demOpenFCB, //SVC_DEMOPENFCB
demCloseFCB, //SVC_DEMCLOSEFCB
demFCBIO, //SVC_FCBIO
demDate16, //SVC_DEMDATE16
demGetFileInfo, //SVC_DEMGETFILEINFO
demSetHardErrorInfo, //SVC_DEMSETHARDERRORINFO
demRetry, //SVC_DEMRETRY
demLoadDosAppSym, //SVC_DEMLOADDOSAPPSYM
demFreeDosAppSym, //SVC_DEMFREEDOSAPPSYM
demEntryDosApp, //SVC_DEMENTRYDOSAPP
demDOSDispCall, //SVC_DEMDOSDISPCALL
demDOSDispRet, //SVC_DEMDOSDISPRET
demOutputString, //SVC_OUTPUT_STRING
demInputString, //SVC_INPUT_STRING
demIsDebug, //SVC_ISDEBUG
demTerminatePDB, //SVC_PDBTERMINATE
demExitVDM, //SVC_DEMEXITVDM
demWOWFiles, //SVC_DEMWOWFILES
demLockOper, //SVC_DEMLOCKOPER
demNotYetImplemented, //SVC_DEMNOTYETIMPLEMENTED
demGetComputerName, //SVC_DEMGETCOMPUTERNAME
demNotYetImplemented, //SVC_DEMFASTREAD
demNotYetImplemented, //SVC_DEMFASTWRITE
demCheckPath, //SVC_DEMCHECKPATH
demSystemSymbolOp, //SVC_DEMSYSTEMSYMBOLOP
demGetDPBList, //SVC_DEMBUILDDPBLIST
demPipeFileDataEOF, //SVC_DEMPIPEFILEDATAEOF
demPipeFileEOF, //SVC_DEMPIPEFILEEOF
demLFNEntry, //SVC_DEMLFNENTRY
demSetDosVarLocation //SVC_SETDOSVARLOCATION
};
/* DemDispatch - Dispatch SVC call to right handler.
* * Entry - iSvc (SVC byte following SVCop) * * Exit - None * * Note - Some mechanism has to be worked out to let the emulator know * about DOSKRNL code segment and size. Using these it will figure * out whether SVCop (hlt for the moment) has to be passed to * DEM or to be handled as normal invalid opcode. */
BOOL DemDispatch (ULONG iSvc){
DBGTRACE(VDMTR_TYPE_DEM + DEM_EVENT_DISPATCH, 0, iSvc);
if (iSvc >= SVC_DEMLASTSVC){#if DBG
sprintf(demDebugBuffer,"Unimplemented SVC index %x\n",iSvc); OutputDebugStringOem(demDebugBuffer);#endif
setCF(1); return FALSE; }
if (pHardErrPacket) { pHardErrPacket->vhe_fbInt24 = 0; }
CurrentISVC = iSvc; (apfnSVC [iSvc])();
DBGTRACE(VDMTR_TYPE_DEM + DEM_EVENT_DISPATCH_EXIT, 0, iSvc);
return TRUE;}
VOID demNotYetImplemented (VOID){ if (fShowSVCMsg) { sprintf(demDebugBuffer,"Unimplemented SVC %d\n",CurrentISVC); OutputDebugStringOem(demDebugBuffer); }
setCF(0); return;}
VOID demSetV86KernelAddr (VOID){ // Here debugger callout has to be made for DOSKRNL symbols
return;}
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