Changeset 16 for trunk/src/os2ahci/init.asm

Timestamp:

Sep 17, 2010, 11:45:29 AM (15 years ago)

Author:

markus

Message:

Changed wmakefile to use link.exe and alp.exe (Assembler) from DDK, now it compiles.

File:

• trunk/src/os2ahci/init.asm (modified) (2 diffs)

trunk/src/os2ahci/init.asm

@@ -17 +17 @@
                 PUBLIC  _engine_hook         ; engine trigger context hook
                 PUBLIC  _dev_hdr             ; device driver header
+                PUBLIC  __I4M                ; 32bit signed multiply routine
+                PUBLIC  __U4M                ; 32bit unsigned multiply routine
+                PUBLIC  __U4D                ; 32bit unsigned divide routine
+                PUBLIC  __I4D                ; 32bit signed multiply routine
                 PUBLIC  _end_of_data         ; end of all data (label)
                 PUBLIC  _end_of_code         ; end of all code (label)
-
+        
 ; ----------------------------------------------------------------------------
 ; Device Driver Header
@@ -327 +331 @@
 _engine_hook    ENDP
 
+
+; Unsigned long divide routine; 
+; taken from OS/2 Uniaud project, original author: Timur Tabi
+__U4D           proc    near
+                shl     edx,10h            ;; Load dx:ax into eax
+                mov     dx,ax
+                mov     eax,edx
+                xor     edx,edx            ;; Zero extend eax into edx
+                shl     ecx,10h            ;; Load cx:bx into ecx
+                mov     cx,bx
+                div     ecx                ;; Divide eax/ecx into eax
+                mov     ecx,edx            ;; Load edx into cx:bx
+                shr     ecx,10h
+                mov     bx,dx
+                mov     edx,eax            ;; Load eax into dx:ax
+                shr     edx,10h
+                ret
+__U4D           endp
+        
+; Long multiply routine; 
+; taken from OS/2 Uniaud project, original author: Timur Tabi
+__U4M           proc    near
+                shl     edx,10h            ;; Load dx:ax into eax
+                mov     dx,ax
+                mov     eax,edx
+                mov     dx,cx              ;; Load cx:bx into edx
+                shl     edx,10h
+                mov     dx,bx
+                mul     edx                ;; Multiply eax*edx into edx:eax
+                mov     edx,eax            ;; Load eax into dx:ax
+                shr     edx,10h
+                ret
+__U4M           endp
+
+__I4M           proc    near
+                shl     edx,10h            ;; Load dx:ax into eax
+                mov     dx,ax
+                mov     eax,edx
+                mov     dx,cx              ;; Load cx:bx into edx
+                shl     edx,10h
+                mov     dx,bx
+                mul     edx                ;; Multiply eax*edx into edx:eax
+                mov     edx,eax            ;; Load eax into dx:ax
+                shr     edx,10h
+                ret
+__I4M           endp
+                
+
+; Signed long divide routine; 
+; taken from OS/2 Uniaud project, original author: Timur Tabi
+__I4D           proc    near
+                shl     edx,10h            ;; Load dx:ax into eax
+                mov     dx,ax
+                mov     eax,edx
+                cdq                        ;; Sign extend eax into edx
+                shl     ecx,10h            ;; Load cx:bx into ecx
+                mov     cx,bx
+                idiv    ecx                ;; Divide eax/ecx into eax
+                mov     ecx,edx            ;; Load edx into cx:bx
+                shr     ecx,10h
+                mov     bx,dx
+                mov     edx,eax            ;; Load eax into dx:ax
+                shr     edx,10h
+                ret
+__I4D           endp
+        
                 .286