Import newlib and create makefile

1 files changed, 32 insertions, 0 deletions

diff --git a/newlib/libc/sys/h8500hms/crt0.c b/newlib/libc/sys/h8500hms/crt0.c
new file mode 100644
index 0000000..fa7d1b9
--- /dev/null
+++ b/newlib/libc/sys/h8500hms/crt0.c
@@ -0,0 +1,32 @@
+
+extern char _start_bss;
+extern char end;
+extern char stack;
+
+static zeroandrun();
+#pragma noprolog
+
+start()
+{
+  asm("mov.w #%off(_stack),sp");
+/*  asm("ldc.w  #0x700,sr");*/
+  asm("ldc.b  #%page(_stack),tp");
+  asm("ldc.b  #%page(_stack),dp");
+  asm("ldc.b  #%page(_stack),ep");
+  /* Can't have anything else in here, since the fp won't be set up
+     so local variables won't work */
+  zeroandrun();
+}
+
+static
+zeroandrun()
+{
+  char *p;
+  p = &_start_bss;
+  while (p < &end) 
+    {
+      *p++ = 0;
+    }
+  main();
+  _exit();
+}