From 6a20b250f76653e2ac8581566858b701a5a58a64 Mon Sep 17 00:00:00 2001 From: Ryan Holtz Date: Wed, 25 Aug 2010 12:12:58 +0000 Subject: [PATCH] Prospective fix for Phil's carpolo crash, which I'm not getting. No whatsnew. --- src/emu/machine/7474.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/src/emu/machine/7474.c b/src/emu/machine/7474.c index 254e3b4bb29..7962706da79 100644 --- a/src/emu/machine/7474.c +++ b/src/emu/machine/7474.c @@ -130,8 +130,11 @@ void ttl7474_device::device_start() state_save_register_device_item(this, 0, m_last_output); state_save_register_device_item(this, 0, m_last_output_comp); - devcb_resolve_write_line(&m_output_cb, &m_config.m_output_cb, this); - devcb_resolve_write_line(&m_comp_output_cb, &m_config.m_comp_output_cb, this); + if(m_config.m_target_tag != NULL) + { + devcb_resolve_write_line(&m_output_cb, &m_config.m_output_cb, this); + devcb_resolve_write_line(&m_comp_output_cb, &m_config.m_comp_output_cb, this); + } } //-------------------------------------------------