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- ;*DDK*************************************************************************/
- ;
- ; COPYRIGHT Copyright (C) 1995 IBM Corporation
- ;
- ; The following IBM OS/2 WARP source code is provided to you solely for
- ; the purpose of assisting you in your development of OS/2 WARP device
- ; drivers. You may use this code in accordance with the IBM License
- ; Agreement provided in the IBM Device Driver Source Kit for OS/2. This
- ; Copyright statement may not be removed.;
- ;*****************************************************************************/
- ; SCCSID = %w% %e%
- ;**************************************************************************
- ;*
- ;* SOURCE FILE NAME = DHCALL2B.ASM
- ;*
- ;* DESCRIPTIVE NAME = C callable DevHelp interface
- ;* Memory Management Related DevHelp Calls
- ;*
- ;*
- ;* VERSION = V2.0
- ;*
- ;* DATE
- ;*
- ;* DESCRIPTION :
- ;*
- ;* Purpose:
- ;*
- ;*
- ;*
- ;*
- ;* FUNCTIONS :
- ;*
- ;*
- ;*
- ;*
- ;*
- ;*
- ;*
- ;* NOTES
- ;*
- ;*
- ;* STRUCTURES
- ;*
- ;* EXTERNAL REFERENCES
- ;*
- ;*
- ;*
- ;* EXTERNAL FUNCTIONS
- ;*
- ;* CHANGE ACTIVITY =
- ;* DATE FLAG APAR CHANGE DESCRIPTION
- ;* -------- ---------- ----- --------------------------------------
- ;* 10/22/93 @V74979 74979 Fix DevHelp_PhysToUVirt
- ;* 10/22/93 @V74979 74979 Change return type to USHORT
- ;* 2/ 5/94 78794 File created
- ;*
- ;****************************************************************************
-
- .xlist
- include dhmacs.inc
- .list
-
- ;*
- ;* Memory Management
- ;*
-
- Code segment dword public 'CODE'
- assume CS:Code,DS:_DATA
-
- ;*
- ;*
- ;* USHORT APIENTRY DevHlp_PhysToUVirt( ULONG PhysAddr, USHORT usLength,
- ;* USHORT Flags, USHORT TagType,
- ;* PVOID SelOffset);
- ;*
- ;*
- ;*
-
-
- DHDef PhysToUVirt
- DHArgs ULONG, PhysAddr
- DHArgs USHORT, usLength
- DHArgs USHORT, Flags
- DHArgs USHORT, TagType
- DHArgs PVOID, SelOffset
-
-
- mov ax, Stk.PhysAddr[2]
- mov bx, Stk.PhysAddr[0]
- mov cx, Stk.usLength
- mov dh, Stk.Flags
- mov si, Stk.TagType
-
- DHCall
-
- push es
- push bx
- les si, Stk.SelOffset ;@V74979
- pop es:[si][0]
- pop es:[si][2]
-
- DHRet1
-
-
- ;*
- ;*
- ;* USHORT APIENTRY DevHlp_PhysToVirt( ULONG PhysAddr, USHORT usLength,
- ;* PVOID SelOffset, PUSHORT ModeFlag );
- ;*
- ;*
-
- DHDef PhysToVirt
- DHArgs ULONG, PhysAddr
- DHArgs USHORT, usLength
- DHArgs PULONG, SelOffset
- DHArgs PUSHORT, ModeFlag
-
- mov ax, Stk.PhysAddr[2]
- mov bx, Stk.PhysAddr[0]
- mov cx, Stk.usLength
- mov dh, 1
-
- DHCall
-
- push es
- push di
- les si, Stk.SelOffset
- pop es:[si][0]
- pop es:[si][2]
-
- mov bx, 1
- les si, Stk.ModeFlag
- jz ptov0010
- mov bx, 0
- ptov0010:
- mov es:[si], bx
-
- DHRet1
-
- ;*
- ;*
- ;* USHORT APIENTRY DevHlp_UnPhysToVirt( PUSHORT ModeFlag );
- ;*
- ;*
-
- DHDef UnPhysToVirt
- DHArgs PUSHORT, ModeFlag
-
- DHCall
-
- mov bx, 1
- les si, Stk.ModeFlag
- jz uptv0010
- mov bx, 0
- uptv0010:
- mov es:[si], bx
-
- DHRet1
-
-
-
- Code Ends
- End
-
-