feat: publish FreeRTOS C FC05 card

2026-07-19 16:36:02 +02:00
commit 3f151c823d
194 changed files with 59220 additions and 0 deletions
@@ -0,0 +1,53 @@
+#ifndef TASK01_QUEUE_MODEL_H
+#define TASK01_QUEUE_MODEL_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct QueueMessage
+{
+    uint32_t sequence;
+    uint32_t payload;
+    uint32_t checksum;
+} QueueMessage;
+
+typedef struct QueueEvidence
+{
+    uint32_t sequence;
+    uint32_t event;
+    uint32_t tick;
+    uint32_t actor;
+    uint32_t value;
+    uint32_t committed;
+} QueueEvidence;
+
+static inline uint32_t fc05_message_checksum( uint32_t sequence,
+                                               uint32_t payload )
+{
+    return 0x51000000U ^ sequence ^ payload;
+}
+
+static inline int fc05_message_is_valid( const QueueMessage * message )
+{
+    return message != NULL &&
+           message->checksum ==
+               fc05_message_checksum( message->sequence, message->payload );
+}
+
+static inline uint32_t fc05_digest( const QueueEvidence * events,
+                                     size_t count )
+{
+    uint32_t hash = 2166136261U;
+    size_t index;
+
+    for( index = 0U; index < count; ++index )
+    {
+        hash = ( hash ^ events[ index ].event ) * 16777619U;
+        hash = ( hash ^ events[ index ].actor ) * 16777619U;
+        hash = ( hash ^ events[ index ].value ) * 16777619U;
+        hash = ( hash ^ events[ index ].committed ) * 16777619U;
+    }
+    return hash;
+}
+
+#endif