82 lines
2.2 KiB
NASM
82 lines
2.2 KiB
NASM
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;***************************************************************************
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;* KRNLPEEK.ASM
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;*
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;* Assembly code used to peer into the heart of KERNEL and return
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;* information in global variables.
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;*
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;***************************************************************************
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INCLUDE TOOLPRIV.INC ;Include the TOOLHELP values
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PMODE32 = 0 ;This should work either way
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PMODE = 0
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INCLUDE WINKERN.INC
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INCLUDE WINDOWS.INC
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;** Functions
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externFP GlobalMasterHandle
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externFP GlobalLock
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externFP GetVersion
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externFP GetProcAddress
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externFP GetModuleHandle
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externNP HelperHandleToSel
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sBegin DATA
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externB _szKernel
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sEnd DATA
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;** Functions
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sBegin CODE
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assumes CS,CODE
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; void KernelType(void)
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;
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; Returns information from KERNEL in global variables
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cProc KernelType, <PUBLIC>, <si,di>
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cBegin
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mov wTHFlags,0 ;Zero flags indicates error
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.286
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;** Call the undocumented function GlobalMasterHandle to get
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;* a pointer to the global HeapInfo structure.
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;** This is the means we can use to detect the kernel types.
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cCall GlobalMasterHandle
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cCall HelperHandleToSel, <dx> ;Convert it to a selector
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mov hMaster,ax ;Save the handle
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mov wTHFlags,TH_KERNEL_386
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KT_BothPModes:
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;** Now get pmode KERNEL information
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; cCall GetVersion ;Which Windows version are we on
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mov bx,SEG GlobalLock ;KERNEL code segment selector
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; cmp ax,0004h ;Win 4.0?
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; je KT_Win31
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; mov wTHFlags,0 ;Zero wTHFlags indicates error
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; jmp SHORT KT_End ;Unknown Windows version
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KT_Win31:
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mov ax,seg _DATA
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mov dx,offset _DATA:_szKernel
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cCall GetModuleHandle,<ax,dx>
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cCall GetProcAddress,<ax,0,332> ; DX:AX -> hGlobalHeap
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mov segKernel,dx ;Save for later
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mov es,dx ;Point with ES
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add ax,4
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mov npwExeHead,ax
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add ax,10
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mov npwTDBHead,ax
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add ax,2
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mov npwTDBCur,ax
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add ax,6
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mov npwSelTableLen,ax
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add ax,2
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mov npdwSelTableStart,ax
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.8086
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KT_End:
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cEnd
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sEnd
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END
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