1 files changed, 19 insertions, 0 deletions
diff --git a/task/exrtab.c b/task/exrtab.c
new file mode 100644
index 0000000..82b9e29
--- /dev/null
+++ b/task/exrtab.c
@@ -0,0 +1,19 @@
+#include "arch/processor.h"
+#include "assert.h"
+
+void
+_exrtab_push(void *v)
+{
+    processor_t *proc = processor_current();
+    proc->exrtab[proc->ert_i++] = (uintptr_t)v;
+}
+
+void*
+_exrtab_pop(void)
+{
+    processor_t *proc = processor_current();
+    
+    assert(proc->ert_i != 0);
+    uintptr_t r = proc->exrtab[--proc->ert_i];
+    return (void*)r;
+}