Add option to set start pc

[riscv-isa-sim.git] / riscv / devices.cc

diff --git a/riscv/devices.cc b/riscv/devices.cc
index e6f5d7d0912b1672d8fda9f9adfec8710a856105..af4dc7d127bc52684866e3be3ac5134e531e61f8 100644 (file)
--- a/riscv/devices.cc
+++ b/riscv/devices.cc
@@ -21,10 +21,13 @@ bool bus_t::store(reg_t addr, size_t len, const uint8_t* bytes)
   return it->second->store(addr - -it->first, len, bytes);
 }
 
-char* bus_t::page(reg_t paddr)
+bus_t::descriptor bus_t::find_device(reg_t addr)
 {
-  auto it = devices.lower_bound(-paddr);
-  if (it == devices.end())
-    return NULL;
-  return it->second->page(paddr);
+  auto it = devices.lower_bound(-addr);
+  if (it == devices.end()) {
+    bus_t::descriptor desc = {0, 0};
+    return desc;
+  }
+  bus_t::descriptor desc = {-it->first, it->second};
+  return desc;
 }