h8300.md: Update the comments at the beginning of the file.

	* config/h8300/h8300.md: Update the comments at the beginning
	of the file.

From-SVN: r49025

gcc/ChangeLog

 2002-01-20  Kazu Hirata  <kazu@hxi.com>
 
+	* config/h8300/h8300.md: Update the comments at the beginning
+	of the file.
+
+2002-01-20  Kazu Hirata  <kazu@hxi.com>
+
 	* config/i370/i370.c: Fix comment formatting.
 	* config/i370/i370.h: Likewise.
 	* config/i370/i370.md: Likewise.

gcc/config/h8300/h8300.md

@@ -22,22 +22,6 @@
 ;; the Free Software Foundation, 59 Temple Place - Suite 330,
 ;; Boston, MA 02111-1307, USA.
 
-;; The original PO technology requires these to be ordered by speed,
-;; so that assigner will pick the fastest.
-
-;; See file "rtl.def" for documentation on define_insn, match_*, et. al.
-
-(define_attr "cpu" "h8300,h8300h"
-  (const (symbol_ref "cpu_type")))
-
-;; Many logical operations should have "bit" variants if only one
-;; bit is going to be operated on.
-
-;; (and (logical op) (const_int X))
-;; If const_int only specifies a few bits (like a single byte in a 4 byte
-;; operation, then it's more efficient to only apply the and and logical_op
-;; to the bits we care about.
-
 ;; Some of the extend instructions accept a general_operand_src, which
 ;; allows all the normal memory addressing modes.  The length computations
 ;; don't take this into account.  The lengths in the MD file should be
@@ -62,6 +46,13 @@
 
 ;; ??? Implement remaining bit ops available on the h8300
 
+;; ----------------------------------------------------------------------
+;; ATTRIBUTES
+;; ----------------------------------------------------------------------
+
+(define_attr "cpu" "h8300,h8300h"
+  (const (symbol_ref "cpu_type")))
+
 (define_attr "type" "branch,arith"
   (const_string "arith"))
 
@@ -90,6 +81,7 @@
         (const_string "yes")))
 
 ;; Condition code settings.
+;;
 ;; none - insn does not affect cc
 ;; none_0hit - insn does not affect cc but it does modify operand 0
 ;;	This attribute is used to keep track of when operand 0 changes.
@@ -98,6 +90,7 @@
 ;; set_zn  - insn sets z,n to usable values; v,c are unknown.
 ;; compare - compare instruction
 ;; clobber - value of cc is unknown
+
 (define_attr "cc" "none,none_0hit,set_znv,set_zn,compare,clobber"
   (const_string "clobber"))