diff --git a/sim/regression-wally b/sim/regression-wally
index c7017720..fa112731 100755
--- a/sim/regression-wally
+++ b/sim/regression-wally
@@ -28,6 +28,7 @@ regressionDir = os.path.dirname(os.path.abspath(__file__))
 os.chdir(regressionDir)
 
 coverage = '-coverage' in sys.argv
+fp = '-fp' in sys.argv
 
 TestCase = namedtuple("TestCase", ['name', 'variant', 'cmd', 'grepstr'])
 # name:     the name of this test configuration (used in printing human-readable
@@ -140,6 +141,9 @@ if (coverage):  # delete all but 64gc tests when running coverage
                  "arch64zi", "wally64a", "wally64periph", "wally64priv", 
                  "arch64zba",  "arch64zbb",  "arch64zbc",  "arch64zbs", 
                  "imperas64f", "imperas64d", "imperas64c", "imperas64i"] 
+    if (fp):
+       tests64gc.append("arch64f")
+       tests64gc.append("arch64d")
     coverStr = '-coverage'
 else:
    coverStr = ''