diff --git a/trunk/src/conddebug.cpp b/trunk/src/conddebug.cpp
index 773f1fdc..af2099cf 100644
--- a/trunk/src/conddebug.cpp
+++ b/trunk/src/conddebug.cpp
@@ -37,10 +37,11 @@
 * Register  -> 'A' | 'X' | 'Y' | 'P'
 * Flag      -> 'N' | 'C' | 'Z' | 'I' | 'B' | 'V'
 * PC Bank   -> 'K'
+* Data Bank   -> 'T'
 */
 
-#include "conddebug.h"
 #include "types.h"
+#include "conddebug.h"
 #include "utils/memory.h"
 
 #include <cstdio>
@@ -49,6 +50,8 @@
 #include <cassert>
 #include <cctype>
 
+// hack: this address is used by 'T' condition
+uint16 addressOfTheLastAccessedData = 0;
 // Next non-whitespace character in string
 char next;
 
@@ -137,12 +140,18 @@ int isRegister(char c)
 	return c == 'A' || c == 'X' || c == 'Y' || c == 'P';
 }
 
-// Determines if a character is for bank
-int isBank(char c)
+// Determines if a character is for PC bank
+int isPCBank(char c)
 {
 	return c == 'K';
 }
 
+// Determines if a character is for Data bank
+int isDataBank(char c)
+{
+	return c == 'T';
+}
+
 // Reads a hexadecimal number from str
 int getNumber(unsigned int* number, const char** str)
 {
@@ -229,16 +238,33 @@ Condition* Primitive(const char** str, Condition* c)
 
 		return c;
 	}
-	else if (isBank(next)) /* PC Bank */
+	else if (isPCBank(next)) /* PC Bank */
 	{
 		if (c->type1 == TYPE_NO)
 		{
-			c->type1 = TYPE_BANK;
+			c->type1 = TYPE_PC_BANK;
 			c->value1 = next;
 		}
 		else
 		{
-			c->type2 = TYPE_BANK;
+			c->type2 = TYPE_PC_BANK;
+			c->value2 = next;
+		}
+
+		scan(str);
+
+		return c;
+	}
+	else if (isDataBank(next)) /* Data Bank */
+	{
+		if (c->type1 == TYPE_NO)
+		{
+			c->type1 = TYPE_DATA_BANK;
+			c->value1 = next;
+		}
+		else
+		{
+			c->type2 = TYPE_DATA_BANK;
 			c->value2 = next;
 		}
 
diff --git a/trunk/src/conddebug.h b/trunk/src/conddebug.h
index 02a3b503..92ea6334 100644
--- a/trunk/src/conddebug.h
+++ b/trunk/src/conddebug.h
@@ -26,7 +26,8 @@
 #define TYPE_FLAG 2
 #define TYPE_NUM 3
 #define TYPE_ADDR 4
-#define TYPE_BANK 5
+#define TYPE_PC_BANK 5
+#define TYPE_DATA_BANK 6
 
 #define OP_NO 0
 #define OP_EQ 1
@@ -42,6 +43,7 @@
 #define OP_OR 11
 #define OP_AND 12
 
+extern uint16 addressOfTheLastAccessedData;
 //mbg merge 7/18/06 turned into sane c++
 struct Condition
 {
diff --git a/trunk/src/debug.cpp b/trunk/src/debug.cpp
index 8820c110..c71274c4 100644
--- a/trunk/src/debug.cpp
+++ b/trunk/src/debug.cpp
@@ -313,7 +313,8 @@ int evaluate(Condition* c)
 	switch(c->type1)
 	{
 		case TYPE_ADDR: value1 = GetMem(value1); break;
-		case TYPE_BANK: value1 = getBank(_PC); break;
+		case TYPE_PC_BANK: value1 = getBank(_PC); break;
+		case TYPE_DATA_BANK: value1 = getBank(addressOfTheLastAccessedData); break;
 	}
 
 	f = value1;
@@ -337,7 +338,8 @@ int evaluate(Condition* c)
 	switch(c->type2)
 	{
 		case TYPE_ADDR: value2 = GetMem(value2); break;
-		case TYPE_BANK: value2 = getBank(_PC); break;
+		case TYPE_PC_BANK: value2 = getBank(_PC); break;
+		case TYPE_DATA_BANK: value2 = getBank(addressOfTheLastAccessedData); break;
 	}
 
 		switch (c->op)
@@ -732,8 +734,6 @@ static void breakpoint(uint8 *opcode, uint16 A, int size) {
 }
 //bbit edited: this is the end of the inserted code
 
-int debug_tracing;
-
 void DebugCycle()
 {
 	uint8 opcode[3] = {0};
@@ -783,6 +783,7 @@ void DebugCycle()
 		case 7: A = (opcode[1] | (opcode[2] << 8)) + _X; break;
 		case 8: A = opcode[1] + _Y; break;
 	}
+	addressOfTheLastAccessedData = A;
 
 	if (numWPs || dbgstate.step || dbgstate.runline || dbgstate.stepout || watchpoint[64].flags || dbgstate.badopbreak || break_on_cycles || break_on_instructions || break_asap)
 		breakpoint(opcode, A, size);