1 files changed, 56 insertions, 0 deletions
diff --git a/private/mvdm/softpc.new/base/ccpu386/movsx.c b/private/mvdm/softpc.new/base/ccpu386/movsx.c
new file mode 100644
index 000000000..23e525e18
--- /dev/null
+++ b/private/mvdm/softpc.new/base/ccpu386/movsx.c
@@ -0,0 +1,56 @@
+/*[
+
+movsx.c
+
+LOCAL CHAR SccsID[]="@(#)movsx.c	1.5 02/09/94";
+
+MOVSX CPU Functions.
+--------------------
+
+]*/
+
+
+#include <insignia.h>
+
+#include <host_def.h>
+#include <xt.h>
+#include <c_main.h>
+#include <c_addr.h>
+#include <c_bsic.h>
+#include <c_prot.h>
+#include <c_seg.h>
+#include <c_stack.h>
+#include <c_xcptn.h>
+#include	<c_reg.h>
+#include <movsx.h>
+
+
+/*
+   =====================================================================
+   EXTERNAL ROUTINES START HERE
+   =====================================================================
+ */
+
+
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+/* Generic - one size fits all 'movsx'.                               */
+/* NB. This function sign extends to 32-bits.                         */
+/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
+GLOBAL VOID
+MOVSX
+       	    	    	                    
+IFN3(
+	IU32 *, pop1,	/* pntr to dst/lsrc operand */
+	IU32, op2,	/* rsrc operand */
+	IUM8, op_sz	/* 8 or 16-bit (original rsrc operand size) */
+    )
+
+
+   {
+   if ( SZ2MSB(op_sz) & op2 )   /* sign bit set? */
+      {
+      /* or in sign extension */
+      op2 = op2 | ~SZ2MASK(op_sz);
+      }
+   *pop1 = op2;
+   }