*** empty log message ***

util/ceg/ce_back/obj_back/back.h

@@ -1,20 +1,34 @@
+/* This file must be included in all the files which use the backlibrary.
+ */
+
 extern char *extnd_name(), *extnd_dnam(), *extnd_dlb(), *extnd_ilb(),
 	    *extnd_hol(), *extnd_ext(), *extnd_pro(), *extnd_start();
 extern holno, procno;
 
 #include "data.h"
 
+/* These routines are called very often, thus we turned them into macros. */
+
 #define text1(b) {if (text-text_area>=size_text)  mem_text() ; *text++=b;}
 #define con1(b) {if (data-data_area>=size_data) mem_data(); *data++ = b;}
 #define rom1(b) {if (data-data_area>=size_data) mem_data(); *data++=b;}
 #define bss( n)		( nbss += n)
 
+
+/* Numbering of the segments and some global constants */
+
 #define 	SEGTXT		0
 #define 	SEGROM		1
 #define 	SEGCON		2
 #define 	SEGBSS		3
 
-#define swtxt()         switchseg( SEGTXT)
+#define swtxt()		sitchseg( SEGTXT)
+
+#define 	PC_REL  	1
+#define 	ABSOLUTE 	!PC_REL
+
+
+/* Initialize values. */
 
 #define MAXTEXT		20
 #define MAXDATA		20
@@ -23,5 +37,3 @@ extern holno, procno;
 #define	MAXSTRING	20
 #define MAXHASH		256
 
-#define PC_REL  1
-#define ABSOLUTE !PC_REL

util/ceg/ce_back/obj_back/data.h

@@ -1,3 +1,5 @@
+/* The global datastructures (see "data.c"). */
+
 extern long 	cur_value();
 
 extern int 	cur_seg;

util/ceg/ce_back/obj_back/header.h

@@ -1,3 +1,5 @@
+/* Constants and a macro that are global to the back library. */
+
 #define SYMBOL_DEFINITION	1
 #define REFERENCE		2
 #define STORE_STRING		3