Improved debugger messages for bus and memory accesses

devices/pdp11/machine/1170/test/machine.xml

@@ -9,5 +9,5 @@
 	<ram id="ram" addr="0x10000" size="0x34000"/>
 	<device id="unibus" name="unibus"/>
 	<panel ref="/devices/pdp11/panel/1170/wide.xml"/>
-	<debugger id="debugger" base="8" messages="bus|trap" commands="bp 140270"/>
+	<debugger id="debugger" base="8" messages="bus|mem|trap" commands="bp 140270"/>
 </machine>

devices/pdp11/rom/custom/boot.mac

@@ -3,15 +3,22 @@
 ; REBASE HIGHER LINK/BOT:140000
 ; WANT PERFORMANCE COUNTER - CLOCK TICKS TO DO SOMETHING?
 
+PSW		=	177776
+DL11_XCSR	=	177564
+DL11_VEC	=	64
+
+KW11_LKS	=	177546
+KW11_VEC	=	100
+
 START:	RESET				; 140000
-	CLR	@#177776
+	CLR	@#PSW
 	MOV	#START,SP
-	CLR	@#177564
+	CLR	@#DL11_XCSR		; CLEAR THE XCSR
 	MOV	#BANNER,R0
 	JSR	PC,PRINT
-	MOV	#CLKAST,@#100
-	MOV	#340,@#102
-	BIS	#100,@#177546		; SET CLOCK TICKING
+	MOV	#CLKAST,@#KW11_VEC
+	MOV	#340,@#KW11_VEC+2
+	BIS	#100,@#KW11_LKS		; SET CLOCK TICKING
 
 	MOV	#PROMPT,R0
 	JSR	PC,PRINT
@@ -35,20 +42,20 @@ CLKAST:					; 140124
 	RTT
 
 ONECHR:
-	TSTB	@#177564		; 140132
+	TSTB	@#DL11_XCSR		; 140132
 	BPL	ONECHR
 	MOVB	R0,@#177566
 	RTS	PC
 
-PRTPTR:	.WORD 0
+PRTPTR:	.WORD 0				; 140146
 
 PRINT:					; 140150
-	BITB	#100,@#177564
+	BITB	#100,@#DL11_XCSR
 	BNE	PRINT
 	MOV	R0,PRTPTR
-	MOV	#PRTAST,@#64
-	MOV	#200,@#66
-	BISB	#100,@#177564
+	MOV	#PRTAST,@#DL11_VEC
+	MOV	#200,@#DL11_VEC+2
+	BISB	#100,@#DL11_XCSR
 	RTS	PC
 
 PRTAST:					; 140210