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-rw-r--r--src/frontend/mame/mameopts.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/frontend/mame/mameopts.cpp b/src/frontend/mame/mameopts.cpp
index 195fdff70bb..01312820cce 100644
--- a/src/frontend/mame/mameopts.cpp
+++ b/src/frontend/mame/mameopts.cpp
@@ -363,7 +363,7 @@ void mame_options::set_system_name(emu_options &options, const char *name)
int middle = sw_load.find_first_of(':', left + 1);
int right = sw_load.find_last_of(':');
- sw_list = sw_load.substr(0, left - 1);
+ sw_list = sw_load.substr(0, left);
sw_name = sw_load.substr(left + 1, middle - left - 1);
sw_part = sw_load.substr(middle + 1, right - middle - 1);
sw_instance = sw_load.substr(right + 1);
@@ -374,6 +374,8 @@ void mame_options::set_system_name(emu_options &options, const char *name)
software_list_device *swlist = software_list_device::find_by_name(config, sw_list.c_str());
const software_info *swinfo = swlist != nullptr ? swlist->find(sw_name.c_str()) : nullptr;
const software_part *swpart = swinfo != nullptr ? swinfo->find_part(sw_part.c_str()) : nullptr;
+ if (swpart == nullptr)
+ osd_printf_warning("Could not find %s in software list\n", options.software_name());
// then add the options
if (new_system)