T: bug fixes for the T cache

- 'busy' has to be handled in a more atomic fashion to avoid crazy runtime race conditions - the basic simulator is too fast sometimes; rewrite the accesses to the T cache to avoid there again crazy behaviors Hopefully that's better...
2018-08-17 12:25:13 +02:00
parent d4a8b5f35e
commit 475d5eb827
4 changed files with 43 additions and 8 deletions
@@ -31,6 +31,10 @@
 #endif

 typedef struct {
+  /* 'busy' is a bit field
+   * bit 0: 1 means that slot is acquired by writer
+   * bit 1: 1 means that slot is ready for consumption
+   */
  volatile int busy;
  char buffer[T_BUFFER_MAX];
  int length;