Changeset 58788 in vbox

Timestamp:

Nov 19, 2015 11:33:22 PM (10 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

104238

Message:

iprt/asm-watcom-x86-*.h: Some fixes.

Location:

trunk/include/iprt

Files:

• asm-watcom-x86-16.h (modified) (3 diffs)
• asm-watcom-x86-32.h (modified) (3 diffs)

trunk/include/iprt/asm-watcom-x86-16.h

@@ -340 +340 @@
     modify exact [ax cx di];
 
-#undef      ASMMemZero32
-#pragma aux ASMMemZero32 = \
+#undef      ASMMemFill32
+#pragma aux ASMMemFill32 = \
     "and ecx, 0ffffh" /* probably not necessary, lazy bird should check... */ \
     "shr ecx, 2" \
@@ -466 +466 @@
     modify exact [ax dx];
 
+#undef      ASMBitTest
+#pragma aux ASMBitTest = \
+    "shl edx, 16" \
+    "mov dx, ax" \
+    "bt  es:[bx], edx" \
+    "setc al" \
+    parm [es bx] [ax dx] nomemory \
+    value [al] \
+    modify exact [ax dx] nomemory;
+
+#if 0
 /** @todo this is way to much inline assembly, better off in an external function. */
 #undef      ASMBitFirstClear
@@ -521 +532 @@
 
 /* ASMBitNextSet: Too much work, do when needed. */
+#else
+/* ASMBitFirstClear: External file.  */
+/* ASMBitNextClear:  External file.  */
+/* ASMBitFirstSet:   External file.  */
+/* ASMBitNextSet:    External file.  */
+#endif
 
 #undef      ASMBitFirstSetU32

trunk/include/iprt/asm-watcom-x86-32.h

@@ -310 +310 @@
     modify exact [eax ecx edi];
 
-#undef      ASMMemZero32
-#pragma aux ASMMemZero32 = \
+#undef      ASMMemFill32
+#pragma aux ASMMemFill32 = \
     "shr ecx, 2" \
     "rep stosd"  \
@@ -409 +409 @@
     modify exact [eax];
 
+#undef      ASMBitTest
+#pragma aux ASMBitTest = \
+    "bt  [ecx], eax" \
+    "setc al" \
+    parm [ecx] [eax] nomemory \
+    value [al] \
+    modify exact [eax] nomemory;
+
+#if 0
 /** @todo this is way to much inline assembly, better off in an external function. */
 #undef      ASMBitFirstClear
@@ -454 +463 @@
 
 /* ASMBitNextSet: Too much work, do when needed. */
+#else
+/* ASMBitFirstClear: External file.  */
+/* ASMBitNextClear:  External file.  */
+/* ASMBitFirstSet:   External file.  */
+/* ASMBitNextSet:    External file.  */
+#endif
 
 #undef      ASMBitFirstSetU32