risugen: control re-randomization of registers with a flag

use a global flag to control whether to re-randomize
registers periodically. This is useful for debugging purposes.

Signed-off-by: Claudio Fontana <claudio.fontana@linaro.org>

1 files changed, 3 insertions, 1 deletions

diff --git a/risugen b/risugen
index 5a9e039..b1232c3 100755
--- a/risugen
+++ b/risugen
@@ -19,6 +19,8 @@ use Getopt::Long;
 use Data::Dumper;
 use Text::Balanced qw { extract_bracketed extract_multiple };
 
+my $periodic_reg_random = 1;
+
 my @insns;
 my %insn_details;
 
@@ -955,7 +957,7 @@ sub write_test_code($$$)
         write_risuop($OP_COMPARE);
         # Rewrite the registers periodically. This avoids the tendency
         # for the VFP registers to decay to NaNs and zeroes.
-        if (($i % 100) == 0) {
+        if ($periodic_reg_random && ($i % 100) == 0) {
             write_random_register_data();
             write_switch_to_test_mode();
         }