Fix CSR overrides in spike cosim

2023-02-04 16:55:43 -08:00
parent c505f3011f
commit fc611ef507
1 changed files with 2 additions and 1 deletions
--- a/generators/chipyard/src/main/resources/csrc/cospike.cc
+++ b/generators/chipyard/src/main/resources/csrc/cospike.cc
@@ -212,8 +212,9 @@ extern "C" void cospike_cosim(long long int cycle,
 	// 4 => csr
 	if ((rd != 0 && type == 0) || type == 1) {
 	  // Override reads from some CSRs
-          uint64_t csr_addr = insn >> 20;
+          uint64_t csr_addr = (insn >> 20) & 0xfff;
          bool csr_read = (insn & 0x7f) == 0x73;
+          if (csr_read) printf("CSR read %lx\n", csr_addr);
          if (csr_read && (
                           (csr_addr == 0xf13) || // mimpid
                           (csr_addr == 0xf12) || // marchid