1 files changed, 21 insertions, 0 deletions
diff --git a/emulator/csr_machine_information.c b/emulator/csr_machine_information.c
new file mode 100644
index 0000000..38a33a1
--- /dev/null
+++ b/emulator/csr_machine_information.c
@@ -0,0 +1,21 @@
+#include "emulator/csr.h"
+
+#include "emulator/hart.h"
+
+static uint32_t csr_minfo_zero(Hart* hart, uint32_t v, enum CsrAction a)
+{
+    return 0;
+}
+
+static uint32_t csr_mhartid(Hart* hart, uint32_t v, enum CsrAction a)
+{
+    return hart->hartid;
+}
+
+void csr_init_machine_information(Hart* hart)
+{
+    hart->csrs[CSR_MVENDORID].action = csr_minfo_zero;
+    hart->csrs[CSR_MARCHID].action = csr_minfo_zero;
+    hart->csrs[CSR_MIMPID].action = csr_minfo_zero;
+    hart->csrs[CSR_MHARTID].action = csr_mhartid;
+}