diff --git a/kern.h b/kern.h
index a3ec0ef..606b737 100644
--- a/kern.h
+++ b/kern.h
@@ -3,6 +3,10 @@
 #define KERN_CALL _Cdecl
 #else
 #define KERN_CALL
+
+extern int   KERN_CALL Net_Call_NWCVLMREQ(UI flags, void *regblk,
+                                        UI p1, UI p2, UI p3);
+
 #endif
 
 extern int   KERN_CALL IPXinit(void);
@@ -26,8 +30,6 @@ extern int   KERN_CALL C32_NCP87_Raw_Probe(UI connLo, UI connHi,
 extern int   KERN_CALL Net_Call_VLM_Raw(UI ax, UI bx, UI cx, UI dx,
                                       void *req, void *repl,
                                       UI p1, UI p2, UI p3);
-extern int   KERN_CALL Net_Call_NWCVLMREQ(UI flags, void *regblk,
-                                        UI p1, UI p2, UI p3);
 extern int   KERN_CALL Net_Call_C(UI func, void *req, void *repl);
 extern int   KERN_CALL Net_Call_CX(UI func, UI bx, UI cx, UI dx,
                                    void *req, void *repl);
diff --git a/nwtests.c b/nwtests.c
index 4125833..c5f0a95 100644
--- a/nwtests.c
+++ b/nwtests.c
@@ -1407,6 +1407,31 @@ static int tests_nwreq87c32matrix(void)
 }
 
 
+
+static void tests_set_reg_word(uint8 *r, int off, UI val)
+{
+  tests_put_word_lh(r + off, (uint16)val);
+}
+
+static UI tests_get_reg_word(uint8 *r, int off)
+{
+  return (UI)(r[off] | ((UI)r[off + 1] << 8));
+}
+
+static void tests_dump_vlm_regs(char *title, uint8 *r)
+{
+  fprintf(stdout, "%s SI=%04X DS=%04X DI=%04X ES=%04X AX=%04X BX=%04X CX=%04X DX=%04X\n",
+          title,
+          tests_get_reg_word(r, 0),
+          tests_get_reg_word(r, 2),
+          tests_get_reg_word(r, 4),
+          tests_get_reg_word(r, 6),
+          tests_get_reg_word(r, 8),
+          tests_get_reg_word(r, 10),
+          tests_get_reg_word(r, 12),
+          tests_get_reg_word(r, 14));
+}
+
 static int tests_c32primref(void)
 {
   uint8 regs[16];