Changeset 6841 for branches/splittup/src/win32k/dev32/devfirst.asm

Timestamp:

Sep 27, 2001, 5:08:35 AM (24 years ago)

Author:

bird

Message:

Win32k/kKrnlLib splittup: done the major stuff.

File:

• branches/splittup/src/win32k/dev32/devfirst.asm (modified) (9 diffs)

branches/splittup/src/win32k/dev32/devfirst.asm

@@ -1 @@
-; $Id: devfirst.asm,v 1.9 2001-07-10 05:19:34 bird Exp $
+; $Id: devfirst.asm,v 1.9.2.1 2001-09-27 03:08:14 bird Exp $
 ;
 ; DevFirst - entrypoint and segment definitions
@@ -33 +33 @@
     public EH_DATASTART
 
-
-    public _strategyAsm0
-    public _strategyAsm1
-    public _CallGetKernelInfo32
-    public _CallElfIOCtl
+    public _strategyAsm
     public _CallWin32kIOCtl
     public _CallWin32kOpen
     public _CallWin32kClose
     public _SSToDS_16a
-    public GetOS2KrnlMTE
-    public x86DisableWriteProtect
-    public x86RestoreWriteProtect
 
 
@@ -50 +43 @@
 ; Externs
 ;
-    extrn _TKSSBase16:dword
-    extrn GETKERNELINFO32:FAR
-    extrn ELFIOCTL:FAR
+    extrn _TKSSBase:dword
     extrn WIN32KIOCTL:FAR
     extrn WIN32KOPEN:FAR
@@ -64 +55 @@
     ASSUME CS:CODE16, DS:DATA16, ES:NOTHING, SS:NOTHING
 
-CODE16START label byte
+CODE16START db 'CODE16START',0
+
 
     .286p
-;$win32ki entry point
-_strategyAsm0:
-;    int 3
-    push    0
-    jmp     _strategyAsm
-
-;$win32k entry point
-_strategyAsm1:
-;    int 3
-    push    1
-    jmp     _strategyAsm
-
 ;;
 ; Stub which pushes parameters onto the stack and call the 16-bit C strategy routine.
@@ -99 +79 @@
     .386p
 ;;
-; Thunk procedure for R0Init32.
-; @cproto    USHORT NEAR CallGetKernelInfo32(ULONG addressKrnlInfoBuf);
-; @returns   Same as GetKernelInfo32.
-; @param     addressKrnlInfoBuf  32-bit pointer to request data on stack.
-; @status    completely implemented.
-; @author    knut st. osmundsen
-_CallGetKernelInfo32 PROC NEAR
-    ASSUME CS:CODE16
-    push    ds
-    push    word ptr [esp+6]            ; push high word.
-    push    word ptr [esp+6]            ; push low word.
-    call    far ptr FLAT:GETKERNELINFO32
-    pop     ds
-    ret
-_CallGetKernelInfo32 ENDP
-
-
-
-
-;;
-; Thunk procedure for .
-; @cproto    USHORT NEAR CallElfIOCtl(void);
-; @returns   Same as ElfIOCtl
-; @param     address of IOCtl request packet (32-bit pointer).
-; @status    completely implemented.
-; @author    knut st. osmundsen
-_CallElfIOCtl PROC NEAR
-    ASSUME CS:CODE16
-    push    ds
-    push    word ptr [esp+6]            ; push high word.
-    push    word ptr [esp+6]            ; push low word.
-    call    far ptr FLAT:ELFIOCTL
-    pop     ds
-    retn
-_CallElfIOCtl ENDP
-
-;;
 ; Thunk procedure for .
 ; @cproto    USHORT NEAR CallWin32kIOCtl(void);
@@ -189 +132 @@
 
 
-
 ;;
 ; SSToDS - stack pointer to Flat pointer.
@@ -204 +146 @@
 _SSToDS_16a proc NEAR
     assume CS:CODE16, DS:DATA16, ES:NOTHING
-    mov     edx, ds:_TKSSBase16         ; get pointer held by _TKSSBase16 (pointer to stack base)
     call    far ptr FLAT:far_getCS      ; get flat selector.
     push    es
     mov     es,  ax
     assume  es:FLAT
-    mov     eax, es:[edx]               ; get pointer to stack base
+    mov     eax, es:_TKSSBase           ; get pointer to stack base
     pop     es
     movzx   edx, word ptr ss:[esp + 2]  ; 16-bit stack pointer (parameter)
@@ -262 +203 @@
     ret
 GetOS2KrnlMTE ENDP
-
-
-;;
-; Disables the ring-0 write protection.
-; It's used to help us write to readonly code segments and objects.
-; @cproto   extern ULONG    _Optlink x86DisableWriteProtect(void);
-; @return   Previous write protection flag setting.
-; @uses     eax, edx
-; @status   completely implemented.
-; @author   knut st. osmundsen (knut.stange.osmundsen@mynd.no)
-; @remark   Used by importTabInit.
-x86DisableWriteProtect proc near
-    cli
-    mov     edx, cr0                    ; Get current cr0
-    test    edx, 000010000h             ; Test for the WriteProtect flag (bit 16)
-    setnz   al
-    movzx   eax, al                     ; Old flag setting in eax (return value)
-    and     edx, 0fffeffffh             ; Clear the 16th (WP) bit.
-    mov     cr0, edx                    ;
-    sti
-    ret                                 ; return eax holds previous WP value.
-x86DisableWriteProtect endp
-
-
-;;
-; Restore the WP flag of CR0 to it's previous state.
-; The call is intent only to be called with the result from x86DisableWriteProtect,
-; and will hence only enable the WP flag.
-; @cproto   extern ULONG    _Optlink x86RestoreWriteProtect(ULONG flWP);
-; @return   Previous write protection flag setting.
-; @param    eax - flWP  Boolean value. (1 = WP was set, 0 WP was clear)
-; @uses     eax
-; @status   completely implemented.
-; @author   knut st. osmundsen (knut.stange.osmundsen@mynd.no)
-; @remark   Used by importTabInit.
-x86RestoreWriteProtect proc near
-    test    eax, eax                    ; Check if the flag was previously clear
-    jnz     x86RWP_set                  ; If set Then Set it back.
-    jmp     x86RWP_end                  ; If clear Then nothing to do.
-x86RWP_set:
-    cli
-    mov     eax, cr0                    ; Get current cr0.
-    or      eax, 000010000h             ; The the 16-bit (WP) bit.
-    mov     cr0, eax                    ; Update cr0.
-    sti
-
-x86RWP_end:
-    ret
-x86RestoreWriteProtect endp
 
 
@@ -367 +259 @@
 
 CODE16_INIT segment
-CODE16_INITSTART label byte
+CODE16_INITSTART db 'CODE16_INITSTART',0
 CODE16_INIT ends
 
 DATA16 segment
-DATA16START label byte
+DATA16START label byte ; no string here!!
 DATA16 ends
 
 DATA16_BSS segment
-DATA16_BSSSTART label byte
+DATA16_BSSSTART db 'DATA16_BSSSTART',0
 DATA16_BSS ends
 
 DATA16_CONST segment
-DATA16_CONSTSTART label byte
+DATA16_CONSTSTART db 'DATA16_CONSTSTART', 0
 DATA16_CONST ends
 
 DATA16_INIT segment
-DATA16_INITSTART label byte
+DATA16_INITSTART db 'DATA16_INITSTART',0
 DATA16_INIT ends
 
 DATA32 segment
-DATA32START label byte
+DATA32START db 'DATA32START',0
 DATA32 ends
 
 BSS32 segment
-BSS32START label byte
+BSS32START db 'BSS32START',0
 BSS32 ends
 
 CONST32_RO segment
-CONST32_ROSTART label byte
+CONST32_ROSTART db 'CONST32_ROSTART',0
 CONST32_RO ends
 
 _VFT segment
-_VFTSTART LABEL BYTE
+_VFTSTART db '_VFTSTART',0
 _VFT ends
 
 EH_DATA segment
-EH_DATASTART LABEL BYTE
+EH_DATASTART db 'EH_DATASTART',0
 EH_DATA ends