1 files changed, 14 insertions, 0 deletions
diff --git a/task/stack.c b/task/stack.c
new file mode 100644
index 0000000..396ab3e
--- /dev/null
+++ b/task/stack.c
@@ -0,0 +1,14 @@
+#include "tasking.h"
+#include "string.h"
+#include "assert.h"
+
+void 
+tcb_stack_push(tcb_t *tcb, void *data, size_t len)
+{
+    assert(tcb != NULL);
+    void *spo = (void*)(tcb->ksp - len);
+    assert(spo >= tcb->stack);
+
+    memcpy(spo, data, len);
+    tcb->ksp = (uintptr_t)spo;
+}