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-rw-r--r--src/emu/devfind.cpp105
1 files changed, 93 insertions, 12 deletions
diff --git a/src/emu/devfind.cpp b/src/emu/devfind.cpp
index d3cfaf8c0a1..4128123e0f2 100644
--- a/src/emu/devfind.cpp
+++ b/src/emu/devfind.cpp
@@ -22,6 +22,8 @@ template class object_finder_base<memory_bank, false>;
template class object_finder_base<memory_bank, true>;
template class object_finder_base<ioport_port, false>;
template class object_finder_base<ioport_port, true>;
+template class object_finder_base<address_space, false>;
+template class object_finder_base<address_space, true>;
template class object_finder_base<u8, false>;
template class object_finder_base<u8, true>;
@@ -50,6 +52,9 @@ template class memory_bank_finder<true>;
template class ioport_finder<false>;
template class ioport_finder<true>;
+template class address_space_finder<false>;
+template class address_space_finder<true>;
+
template class region_ptr_finder<u8, false>;
template class region_ptr_finder<u8, true>;
template class region_ptr_finder<u16, false>;
@@ -230,29 +235,105 @@ void *finder_base::find_memshare(u8 width, size_t &bytes, bool required) const
//-------------------------------------------------
+// find_addrspace - find address space
+//-------------------------------------------------
+
+address_space *finder_base::find_addrspace(int spacenum, u8 width, bool required) const
+{
+ // look up the device and return nullptr if not found
+ device_t *const device(m_base.get().subdevice(m_tag));
+ if (device == nullptr)
+ return nullptr;
+
+ // check for memory interface and the specified space number
+ const device_memory_interface *memory;
+ if (!device->interface(memory))
+ {
+ if (required)
+ osd_printf_warning("Device '%s' found but lacks memory interface\n", m_tag);
+ return nullptr;
+ }
+ if (!memory->has_space(spacenum))
+ {
+ if (required)
+ osd_printf_warning("Device '%s' found but lacks address space #%d\n", m_tag, spacenum);
+ return nullptr;
+ }
+
+ // check data width
+ address_space &space(memory->space(spacenum));
+ if (width != 0 && width != space.data_width())
+ {
+ if (required)
+ osd_printf_warning("Device '%s' found but address space #%d has the wrong data width (expected %d, found %d)\n", m_tag, spacenum, width, space.data_width());
+ return nullptr;
+ }
+
+ // return result
+ return &space;
+}
+
+
+//-------------------------------------------------
+// validate_addrspace - find address space
+//-------------------------------------------------
+
+bool finder_base::validate_addrspace(int spacenum, u8 width, bool required) const
+{
+ // look up the device and return false if not found
+ device_t *const device(m_base.get().subdevice(m_tag));
+ if (device == nullptr)
+ return report_missing(false, "address space", required);
+
+ // check for memory interface and a configuration for the designated space
+ const device_memory_interface *memory = nullptr;
+ const address_space_config *config = nullptr;
+ if (device->interface(memory))
+ {
+ config = memory->space_config(spacenum);
+ if (required)
+ {
+ if (config == nullptr)
+ osd_printf_warning("Device '%s' found but lacks address space #%d\n", m_tag, spacenum);
+ else if (width != 0 && width != config->data_width())
+ osd_printf_warning("Device '%s' found but space #%d has the wrong data width (expected %d, found %d)\n", m_tag, spacenum, width, config->data_width());
+ }
+ }
+ else if (required)
+ osd_printf_warning("Device '%s' found but lacks memory interface\n", m_tag);
+
+ // report result
+ return report_missing(config != nullptr && (width == 0 || width == config->data_width()), "address space", required);
+}
+
+
+//-------------------------------------------------
// report_missing - report missing objects and
// return true if it's ok
//-------------------------------------------------
bool finder_base::report_missing(bool found, const char *objname, bool required) const
{
- if (required && (strcmp(m_tag, DUMMY_TAG) == 0))
+ if (required && (DUMMY_TAG == m_tag))
{
osd_printf_error("Tag not defined for required %s\n", objname);
return false;
}
-
- // just pass through in the found case
- if (found)
+ else if (found)
+ {
+ // just pass through in the found case
return true;
-
- // otherwise, report
- std::string const region_fulltag(m_base.get().subtag(m_tag));
- if (required)
- osd_printf_error("Required %s '%s' not found\n", objname, region_fulltag.c_str());
+ }
else
- osd_printf_verbose("Optional %s '%s' not found\n", objname, region_fulltag.c_str());
- return !required;
+ {
+ // otherwise, report
+ std::string const region_fulltag(m_base.get().subtag(m_tag));
+ if (required)
+ osd_printf_error("Required %s '%s' not found\n", objname, region_fulltag.c_str());
+ else if (DUMMY_TAG != m_tag)
+ osd_printf_verbose("Optional %s '%s' not found\n", objname, region_fulltag.c_str());
+ return !required;
+ }
}
@@ -261,7 +342,7 @@ void finder_base::printf_warning(const char *format, ...)
va_list argptr;
char buffer[1024];
- /* do the output */
+ // do the output
va_start(argptr, format);
vsnprintf(buffer, 1024, format, argptr);
osd_printf_warning("%s", buffer);