extmod/moductypes: Fix storing to (U)INT64 arrays on 32-bit archs.

Fixes issue #6583.

Signed-off-by: Damien George <damien@micropython.org>

2 files changed, 43 insertions, 0 deletions

diff --git a/tests/extmod/uctypes_array_load_store.py b/tests/extmod/uctypes_array_load_store.py
new file mode 100644
index 000000000..709b9f5c2
--- /dev/null
+++ b/tests/extmod/uctypes_array_load_store.py
@@ -0,0 +1,19 @@
+# Test uctypes array, load and store, with array size > 1
+
+try:
+    import uctypes
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+N = 3
+
+for endian in ("NATIVE", "LITTLE_ENDIAN", "BIG_ENDIAN"):
+    for type_ in ("INT8", "UINT8", "INT16", "UINT16", "INT32", "UINT32", "INT64", "UINT64"):
+        desc = {"arr": (uctypes.ARRAY | 0, getattr(uctypes, type_) | N)}
+        sz = uctypes.sizeof(desc)
+        data = bytearray(sz)
+        s = uctypes.struct(uctypes.addressof(data), desc, getattr(uctypes, endian))
+        for i in range(N):
+            s.arr[i] = i
+        print(endian, type_, sz, *(s.arr[i] for i in range(N)))
diff --git a/tests/extmod/uctypes_array_load_store.py.exp b/tests/extmod/uctypes_array_load_store.py.exp
new file mode 100644
index 000000000..f6f7bc96e
--- /dev/null
+++ b/tests/extmod/uctypes_array_load_store.py.exp
@@ -0,0 +1,24 @@
+NATIVE INT8 3 0 1 2
+NATIVE UINT8 3 0 1 2
+NATIVE INT16 6 0 1 2
+NATIVE UINT16 6 0 1 2
+NATIVE INT32 12 0 1 2
+NATIVE UINT32 12 0 1 2
+NATIVE INT64 24 0 1 2
+NATIVE UINT64 24 0 1 2
+LITTLE_ENDIAN INT8 3 0 1 2
+LITTLE_ENDIAN UINT8 3 0 1 2
+LITTLE_ENDIAN INT16 6 0 1 2
+LITTLE_ENDIAN UINT16 6 0 1 2
+LITTLE_ENDIAN INT32 12 0 1 2
+LITTLE_ENDIAN UINT32 12 0 1 2
+LITTLE_ENDIAN INT64 24 0 1 2
+LITTLE_ENDIAN UINT64 24 0 1 2
+BIG_ENDIAN INT8 3 0 1 2
+BIG_ENDIAN UINT8 3 0 1 2
+BIG_ENDIAN INT16 6 0 1 2
+BIG_ENDIAN UINT16 6 0 1 2
+BIG_ENDIAN INT32 12 0 1 2
+BIG_ENDIAN UINT32 12 0 1 2
+BIG_ENDIAN INT64 24 0 1 2
+BIG_ENDIAN UINT64 24 0 1 2