1 files changed, 41 insertions, 0 deletions
diff --git a/deps/lightning/doc/printf.c b/deps/lightning/doc/printf.c
new file mode 100644
index 0000000..b36eec0
--- /dev/null
+++ b/deps/lightning/doc/printf.c
@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <lightning.h>
+
+static jit_state_t *_jit;
+
+typedef void (*pvfi)(int);    /* Pointer to Void Function of Int */
+
+int main(int argc, char *argv[])
+{
+  pvfi          myFunction;             /* ptr to generated code */
+  jit_node_t    *start, *end;           /* a couple of labels */
+  jit_node_t    *in;                    /* to get the argument */
+
+  init_jit(argv[0]);
+  _jit = jit_new_state();
+
+  start = jit_note(__FILE__, __LINE__);
+  jit_prolog();
+  in = jit_arg();
+  jit_getarg(JIT_R1, in);
+  jit_prepare();
+  jit_pushargi((jit_word_t)"generated %d bytes\n");
+  jit_ellipsis();
+  jit_pushargr(JIT_R1);
+  jit_finishi(printf);
+  jit_ret();
+  jit_epilog();
+  end = jit_note(__FILE__, __LINE__);
+
+  myFunction = jit_emit();
+
+  /* call the generated code, passing its size as argument */
+  myFunction((char*)jit_address(end) - (char*)jit_address(start));
+  jit_clear_state();
+
+  jit_disassemble();
+
+  jit_destroy_state();
+  finish_jit();
+  return 0;
+}