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Diffstat (limited to 'src/emu/debug/dvdisasm.cpp')
-rw-r--r--src/emu/debug/dvdisasm.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/emu/debug/dvdisasm.cpp b/src/emu/debug/dvdisasm.cpp
index 2292e766132..8084251c7b1 100644
--- a/src/emu/debug/dvdisasm.cpp
+++ b/src/emu/debug/dvdisasm.cpp
@@ -321,7 +321,7 @@ void debug_view_disasm::generate_dasm(debug_disasm_buffer &buffer, offs_t pc)
if(pos != -1) {
if(!pc_changed)
return;
- if(pos >= m_topleft.y && pos < m_topleft.y + m_visible.y)
+ if(pos >= m_topleft.y && pos < m_topleft.y + m_visible.y - 2)
return;
if(pos < m_total.y - m_visible.y) {
m_topleft.x = 0;
@@ -566,6 +566,8 @@ void debug_view_disasm::set_selected_address(offs_t address)
void debug_view_disasm::set_source(const debug_view_source &source)
{
- debug_view::set_source(source);
- m_dasm.clear();
+ if(&source != m_source) {
+ debug_view::set_source(source);
+ m_dasm.clear();
+ }
}