diff options
Diffstat (limited to 'qtmips_cli/main.cpp')
| -rw-r--r-- | qtmips_cli/main.cpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/qtmips_cli/main.cpp b/qtmips_cli/main.cpp index a333392..49f4cbf 100644 --- a/qtmips_cli/main.cpp +++ b/qtmips_cli/main.cpp @@ -63,8 +63,62 @@ void create_parser(QCommandLineParser &p) { p.addOption({{"trace-lo", "tr-lo"}, "Print LO register changes."}); p.addOption({{"trace-hi", "tr-hi"}, "Print HI register changes."}); p.addOption({{"dump-registers", "d-regs"}, "Dump registers state at program exit."}); + p.addOption({"dump-cache-stats", "Dump cache statistics at program exit."}); p.addOption({"expect-fail", "Expect that program causes CPU trap and fail if it doesn't."}); p.addOption({"fail-match", "Program should exit with exactly this CPU TRAP. Possible values are I(unsupported Instruction), A(Unsupported ALU operation), O(Overflow/underflow) and J(Unaligned Jump). You can freely combine them. Using this implies expect-fail option.", "TRAP"}); + p.addOption({"d-cache", "Data cache. Format policy,sets,words_in_blocks,associativity where policy is random/lru/lfu", "DCACHE"}); + p.addOption({"i-cache", "Instruction cache. Format policy,sets,words_in_blocks,associativity where policy is random/lru/lfu", "ICACHE"}); +} + +void configure_cache(MachineConfigCache &cacheconf, QStringList cachearg, QString which) { + if (cachearg.size() < 1) + return; + cacheconf.set_enabled(true); + QStringList pieces = cachearg.at(cachearg.size() - 1).split(","); + if (pieces.size() < 3) { + std::cerr << "Parameters for " << which.toLocal8Bit().data() << " cache incorrect (correct lru,4,2,2,wb)." << std::endl; + exit(1); + } + if (pieces.at(0).size() < 1) { + std::cerr << "Policy for " << which.toLocal8Bit().data() << " cache is incorrect." << std::endl; + exit(1); + } + if (!pieces.at(0).at(0).isDigit()) { + if (pieces.at(0).toLower() == "random") + cacheconf.set_replacement_policy(MachineConfigCache::RP_RAND); + else if (pieces.at(0).toLower() == "lru") + cacheconf.set_replacement_policy(MachineConfigCache::RP_LRU); + else if (pieces.at(0).toLower() == "lfu") + cacheconf.set_replacement_policy(MachineConfigCache::RP_LFU); + else { + std::cerr << "Policy for " << which.toLocal8Bit().data() << " cache is incorrect." << std::endl; + exit(1); + } + pieces.removeFirst(); + } + if (pieces.size() < 3) { + std::cerr << "Parameters for " << which.toLocal8Bit().data() << " cache incorrect (correct lru,4,2,2,wb)." << std::endl; + exit(1); + } + cacheconf.set_sets(pieces.at(0).toLong()); + cacheconf.set_blocks(pieces.at(1).toLong()); + cacheconf.set_associativity(pieces.at(2).toLong()); + if (cacheconf.sets() == 0 || cacheconf.blocks() == 0 || cacheconf.associativity() == 0) { + std::cerr << "Parameters for " << which.toLocal8Bit().data() << " cache cannot have zero component." << std::endl; + exit(1); + } + if (pieces.size() > 3) { + if (pieces.at(3).toLower() == "wb") + cacheconf.set_write_policy(MachineConfigCache::WP_BACK); + else if (pieces.at(3).toLower() == "wt" || pieces.at(3).toLower() == "wtna") + cacheconf.set_write_policy(MachineConfigCache::WP_TROUGH_NOALLOC); + else if (pieces.at(3).toLower() == "wta") + cacheconf.set_write_policy(MachineConfigCache::WP_TROUGH_ALLOC); + else { + std::cerr << "Write policy for " << which.toLocal8Bit().data() << " cache is incorrect (correct wb/wt/wtna/wta)." << std::endl; + exit(1); + } + } } void configure_machine(QCommandLineParser &p, MachineConfig &cc) { @@ -77,6 +131,9 @@ void configure_machine(QCommandLineParser &p, MachineConfig &cc) { cc.set_delay_slot(!p.isSet("no-delay-slot")); cc.set_pipelined(p.isSet("pipelined")); + + configure_cache(*cc.access_cache_data(), p.values("d-cache"), "data"); + configure_cache(*cc.access_cache_program(), p.values("i-cache"), "instruction"); } void configure_tracer(QCommandLineParser &p, Tracer &tr) { @@ -124,6 +181,8 @@ void configure_tracer(QCommandLineParser &p, Tracer &tr) { void configure_reporter(QCommandLineParser &p, Reporter &r) { if (p.isSet("dump-registers")) r.regs(); + if (p.isSet("dump-cache-stats")) + r.cache_stats(); QStringList fail = p.values("fail-match"); for (int i = 0; i < fail.size(); i++) { |