urj_part_data_register_alloc() changes the length of a data register.
---
urjtag/include/urjtag/data_register.h | 7 +++++++
urjtag/src/part/data_register.c | 19 +++++++++++++++++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/urjtag/include/urjtag/data_register.h
b/urjtag/include/urjtag/data_register.h
index e9323a4..ae0b497 100644
--- a/urjtag/include/urjtag/data_register.h
+++ b/urjtag/include/urjtag/data_register.h
@@ -41,6 +41,13 @@ urj_data_register_t *urj_part_data_register_alloc (const
char *name, int len);
void urj_part_data_register_free (urj_data_register_t *dr);
/**
+ * change the length of a data_register
+ *
+ * @return URJ_STATUS_OK on success; URJ_STATUS_FAIL on error
+ */
+int urj_part_data_register_realloc (urj_data_register_t *dr, int len);
+
+/**
* allocate a data register and initialize the relevant <code>part</code> parts
*
* @return URJ_STATUS_OK on success; URJ_STATUS_FAIL on error
diff --git a/urjtag/src/part/data_register.c b/urjtag/src/part/data_register.c
index 9a6fc29..c4cce78 100644
--- a/urjtag/src/part/data_register.c
+++ b/urjtag/src/part/data_register.c
@@ -133,3 +133,22 @@ urj_part_data_register_define (urj_part_t *part, const
char *name, int len)
return URJ_STATUS_OK;
}
+
+int
+urj_part_data_register_realloc (urj_data_register_t *dr, int len)
+{
+ urj_tap_register_free (dr->in);
+ dr->in = NULL;
+ urj_tap_register_free (dr->out);
+ dr->out = NULL;
+
+ dr->in = urj_tap_register_alloc (len);
+ if (!dr->in)
+ return URJ_STATUS_FAIL;
+
+ dr->out = urj_tap_register_alloc (len);
+ if (!dr->out)
+ return URJ_STATUS_FAIL;
+
+ return URJ_STATUS_OK;
+}
--
1.7.1
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