From a1c3a96a83bc704311f7ee6af051911feb53d946 Mon Sep 17 00:00:00 2001
From: AJR <ajrhacker@users.noreply.github.com>
Date: Thu, 26 Jul 2018 22:12:55 -0400
Subject: [PATCH] Mask address expressions in debug disasm view

---
 src/emu/debug/dvdisasm.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/emu/debug/dvdisasm.cpp b/src/emu/debug/dvdisasm.cpp
index b10df8c618f..fecb02d4998 100644
--- a/src/emu/debug/dvdisasm.cpp
+++ b/src/emu/debug/dvdisasm.cpp
@@ -311,7 +311,8 @@ void debug_view_disasm::generate_dasm(debug_disasm_buffer &buffer, offs_t pc)
 			m_topleft.x = 0;
 			m_topleft.y = 0;
 		}
-		generate_from_address(buffer, m_expression.value());
+		const debug_view_disasm_source &source = downcast<const debug_view_disasm_source &>(*m_source);
+		generate_from_address(buffer, m_expression.value() & source.m_space.logaddrmask());
 		return;
 	}