X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=blobdiff_plain;f=detpic%2Fcommon.inc;fp=detpic%2Fcommon.inc;h=116c007b16f46e551c0512ead9114bef0d24dd17;hb=3072eaa5bd8270b67c56377111f241c787e48a05;hp=f54e81806781f949fa4a0d94ca42fffbcc0051a8;hpb=ea7d37bc26624e59e4a302aa9933fd01af76f8cf;p=trains.git

diff --git a/detpic/common.inc b/detpic/common.inc
index f54e818..116c007 100644
--- a/detpic/common.inc
+++ b/detpic/common.inc
@@ -122,11 +122,48 @@ tickdiv_us equ tick_us * tickdiv
 @ macro
   endm
 
-D macro v
-	mov_lw	v
+;----------------------------------------
+; For adding a byte to the debug buffer.
+; Not for use in High ISR.  In all cases:
+;
+;  STATUS	any		trashed
+;  all others	any		preserved
+
+  ifndef NDEBUG
+;----------
+Dv macro  ; sorry, but assembler's dw directive isn't case-sensitive
+;
+;  W		message byte	preserved
+;
 	call	debugbyte
 	endm
 
+;----------
+Dl macro debug_literal_value
+;
+;  W		any		literal value as specified
+;
+	mov_lw	debug_literal_value
+	Dv
+	endm
+
+;----------
+Df macro debug_register_file_address
+;
+;  W		any		value from specified memory location
+;
+	mov_fw	debug_register_file_address
+	Dv
+	endm
+  else
+Dv macro
+   endm
+Dl macro debug_literal_value
+   endm
+Df macro debug_register_file_address
+   endm
+  endif
+
 ;----------------------------------------
 ; For entering and leaving Low ISR, saving and restoring STATUS and W
 ; See above under <something>_intrl, and {master,slave}_interrupt_low