From: Andrew Waterman <waterman@cs.berkeley.edu>
Date: Mon, 1 Jun 2015 01:10:20 +0000 (-0700)
Subject: Execute exactly the # of insns passed to step()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1f9205c93b3541b5c2ae19d4a6250aab70977e5f;p=riscv-isa-sim.git

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 7162a39..6368c8f 100644
--- 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; \
       }