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Fix CSR overrides in spike cosim

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This commit is contained in:
Jerry Zhao
2023-02-04 16:55:43 -08:00
parent c505f3011f
commit fc611ef507
1 changed files with 2 additions and 1 deletions
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3
generators/chipyard/src/main/resources/csrc/cospike.cc
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@@ -212,8 +212,9 @@ extern "C" void cospike_cosim(long long int cycle,
// 4 => csr // 4 => csr
if ((rd != 0 && type == 0) || type == 1) { if ((rd != 0 && type == 0) || type == 1) {
// Override reads from some CSRs // Override reads from some CSRs
uint64_t csr_addr = insn >> 20; uint64_t csr_addr = (insn >> 20) & 0xfff;
bool csr_read = (insn & 0x7f) == 0x73; bool csr_read = (insn & 0x7f) == 0x73;
if (csr_read) printf("CSR read %lx\n", csr_addr);
if (csr_read && ( if (csr_read && (
(csr_addr == 0xf13) || // mimpid (csr_addr == 0xf13) || // mimpid
(csr_addr == 0xf12) || // marchid (csr_addr == 0xf12) || // marchid