Changeset 468 for OCO/trunk/drv16/memutil.asm

Timestamp:

Nov 4, 2009, 4:21:24 PM (16 years ago)

Author:

pasha

Message:

Rebuild buffers supply, fix DDCMD_WRITE with len=0 in WAVE chain, remove/add debug output, change DebugInt3 for debug/nondebug version, move unused code to unused directore

File:

• OCO/trunk/drv16/memutil.asm (modified) (9 diffs)

OCO/trunk/drv16/memutil.asm

@@ -93 +93 @@
     ; save registers
         push   cx
-        push   bx
+;PS+++        push   bx
         push   ds
         push   es
@@ -101 +101 @@
     ; store number of bytes to transfer and calculate number of double words
     ; and set of transfer value
-        mov    bx,BUF1_LEN
-        mov    cx,bx
+;PS+++        mov    bx,BUF1_LEN
+;PS+++        mov    cx,bx
+        mov    cx,BUF1_LEN                    ;PS+++
         shr    cx,2
 
@@ -120 +121 @@
 
     ; transfer number of odd bytes
-        mov    cx,bx
+;PS+++        mov    cx,bx
+        mov    cx,BUF1_LEN                    ;PS+++
         and    cx,03h
+        or     cx,cx                          ;PS+++
+        jz     short @@NoPad                  ;PS+++
         rep    movsb
-
+@@NoPad:                                      ;PS+++
     ;set up return value and restore registers
         pop    di
@@ -129 +133 @@
         pop    es
         pop    ds
-        pop    bx
+;PS+++        pop    bx
         pop    cx
-        pop    bp
-
+;PS+++        pop    bp
+        leave                                  ;PS+++
    ;done
         ret
@@ -143 +147 @@
 ; the fill value as parameters on the stack.
 ;    The function does not return a value.
-
+;PS+++ Where is used now?
+ifdef WhereIsUsed
 public _ddmemfill
 _ddmemfill proc near
@@ -157 +162 @@
 
     ; save registers
-        push   bx
+;PS+++        push   bx
         push   cx
         push   es
@@ -164 +169 @@
     ; store number of bytes to transfer and calculate number of double words
     ; and set of transfer value
-        mov    bx,BUF2_LEN
-        mov    cx,bx
+;PS+++        mov    bx,BUF2_LEN
+;PS+++        mov    cx,bx
+        mov    cx,BUF2_LEN                            ;PS++
         shr    cx,2
 
     ; set size in bytes of object to be allocated
-        mov    es,DEST2_HIGH
+        mov    es,DEST2_HIGH               
         mov    di,DEST2_LOW
 
     ; set up value
-        mov    ax,VALUE2
+;PS+++        mov    ax,VALUE2                          
+        mov    al,VALUE2                          ;PS+++
+        mov    ah,ah                              ;PS+++
+        push   ax                                 ;PS+++
         shl    eax,010h
-        mov    ax,VALUE2
+;PS+++        mov    ax,VALUE2
+        pop    ax                                 ;PS+++
 
     ; set up transfer direction
@@ -184 +194 @@
 
     ; transfer number of odd bytes
-        mov    cx,bx
+;PS+++        mov    cx,bx
+        mov    cx,BUF2_LEN                            ;PS++
         and    cx,03h
         rep    stosb
@@ -192 +203 @@
         pop    es
         pop    cx
-        pop    bx
-        pop    bp
-
+;PS+++        pop    bx
+;PS+++        pop    bp
+        leave
    ;done
         ret
 _ddmemfill endp
+endif
 
 _TEXT       ENDS