Execute exactly the # of insns passed to step()

Previously, the value was treated as approximate.

diff --git a/riscv/processor.cc b/riscv/processor.cc
index 7162a393b30b407022922a1cff9fc45b48b1df8c..6368c8f18cc5ad3f3423894927c06043626cb6af 100644 (file)
--- a/riscv/processor.cc
+++ b/riscv/processor.cc
@@ -261,6 +261,7 @@ void processor_t::step(size_t n)
         pc = execute_insn(this, pc, fetch); \
         if (idx == mmu_t::ICACHE_ENTRIES-1) break; \
         if (unlikely(ic_entry->tag != pc)) break; \
+        if (unlikely(instret+1 == n)) break; \
         instret++; \
         state.pc = pc; \
       }