v850 port: Initial addition with BSP for simulator in GDB

Port
  + v850 does not have appear to have any optimized bit scan instructions
  + v850 does have single instructions for wap u16 and u32
  + Code path optimization preferences set
  + Add BSP variants for each GCC CPU model flag and a README
    - v850e1 variant does not work (fails during BSP initialization)
BSP for GDB v850 Simulator
  + linkcmds matches defaults in GDB simulator with RTEMS mods
  + crt1.c added from v850 newlib port for __main()
  + BSP exits cleanly
  + printk and console I/O work
  + uses clock tick from IDLE task
  + Tests not requiring real clock ISR work
Documentation
  + CPU Supplment chapter for v850 added

1 files changed, 21 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/v850/shared/crt1.c b/c/src/lib/libbsp/v850/shared/crt1.c
new file mode 100644
index 0000000000..18c240b6ed
--- /dev/null
+++ b/c/src/lib/libbsp/v850/shared/crt1.c
@@ -0,0 +1,21 @@
+/*
+ * From newlib ==> libc/sys/sysnecv850/crt1.c
+ *
+ * Obtained newlib 29 May 2012
+ */
+void __main ()
+{
+  static int initialized;
+  if (! initialized)
+    {
+      typedef void (*pfunc) ();
+      extern pfunc __ctors[];
+      extern pfunc __ctors_end[];
+      pfunc *p;
+
+      initialized = 1;
+      for (p = __ctors_end; p > __ctors; )
+	(*--p) ();
+
+    }
+}