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Don't try to read past the end of a memory space in debug view

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This commit is contained in:
AJR 2017-06-22 20:49:20 -04:00
parent 14ee94a1fe
commit 3bff05cff7
1 changed files with 6 additions and 3 deletions
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9
src/emu/debug/dvmemory.cpp
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@ -739,11 +739,14 @@ bool debug_view_memory::read(u8 size, offs_t offs, u64 &data)
// if no raw data, just use the standard debug routines
if (source.m_space != nullptr)
{
offs_t dummyaddr = offs;
auto dis = machine().disable_side_effect();
bool ismapped = m_no_translation ? true : source.m_memintf->translate(source.m_space->spacenum(), TRANSLATE_READ_DEBUG, dummyaddr);
bool ismapped = offs <= m_maxaddr;
if (ismapped && !m_no_translation)
{
offs_t dummyaddr = offs;
ismapped = source.m_memintf->translate(source.m_space->spacenum(), TRANSLATE_READ_DEBUG, dummyaddr);
}
data = ~u64(0);
if (ismapped)
{