const penryn: CpuModel = .{ .name = "penryn", .llvm_name = "penryn", .features = featureSet(&.{.64bit, .cmov, .cx16, .fxsr, .macrofusion, .mmx, .nopl, .sahf, .slow_unaligned_mem_16, .sse4_1, .vzeroupper, .x87}) };