[src/trunk]: src/sys/arch/m68k/fpe Improve how to use cmp/sub.

[isaki <isaki%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/63a1b69a5f37
branches:  trunk
changeset: 786176:63a1b69a5f37
user:      isaki <isaki%NetBSD.org@localhost>
date:      Thu Apr 18 13:40:25 2013 +0000

description:
Improve how to use cmp/sub.

diffstat:

 sys/arch/m68k/fpe/fpu_trig.c |  36 ++++++++++--------------------------
 1 files changed, 10 insertions(+), 26 deletions(-)

diffs (84 lines):

diff -r d51d5640e7de -r 63a1b69a5f37 sys/arch/m68k/fpe/fpu_trig.c
--- a/sys/arch/m68k/fpe/fpu_trig.c      Thu Apr 18 12:42:03 2013 +0000
+++ b/sys/arch/m68k/fpe/fpu_trig.c      Thu Apr 18 13:40:25 2013 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: fpu_trig.c,v 1.9 2013/04/11 13:27:11 isaki Exp $       */
+/*     $NetBSD: fpu_trig.c,v 1.10 2013/04/18 13:40:25 isaki Exp $      */
 
 /*
  * Copyright (c) 1995  Ken Nakata
@@ -57,7 +57,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.9 2013/04/11 13:27:11 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.10 2013/04/18 13:40:25 isaki Exp $");
 
 #include "fpu_emulate.h"
 
@@ -277,14 +277,10 @@
         */
        CPYFPN(&fe->fe_f1, &x);
        CPYFPN(&fe->fe_f2, &p);
-       r = fpu_cmp(fe);
+       fe->fe_f2.fp_sign = 1;
+       r = fpu_add(fe);
        if (r->fp_sign == 0) {
-               CPYFPN(&fe->fe_f1, &x);
-               CPYFPN(&fe->fe_f2, &p);
-               fe->fe_f2.fp_sign = 1;
-               r = fpu_add(fe);
                CPYFPN(&x, r);
-
                sign ^= 1;
        }
 
@@ -299,13 +295,9 @@
         */
        CPYFPN(&fe->fe_f1, &x);
        CPYFPN(&fe->fe_f2, &p);
-       r = fpu_cmp(fe);
+       fe->fe_f2.fp_sign = 1;
+       r = fpu_add(fe);
        if (r->fp_sign == 0) {
-               CPYFPN(&fe->fe_f1, &x);
-               CPYFPN(&fe->fe_f2, &p);
-               fe->fe_f2.fp_sign = 1;
-               r = fpu_add(fe);
-
                CPYFPN(&fe->fe_f2, r);
                r = fpu_sin_halfpi(fe);
                sign ^= 1;
@@ -389,14 +381,10 @@
         */
        CPYFPN(&fe->fe_f1, &x);
        CPYFPN(&fe->fe_f2, &p);
-       r = fpu_cmp(fe);
+       fe->fe_f2.fp_sign = 1;
+       r = fpu_add(fe);
        if (r->fp_sign == 0) {
-               CPYFPN(&fe->fe_f1, &x);
-               CPYFPN(&fe->fe_f2, &p);
-               fe->fe_f2.fp_sign = 1;
-               r = fpu_add(fe);
                CPYFPN(&x, r);
-
                sign ^= 1;
        }
 
@@ -411,13 +399,9 @@
         */
        CPYFPN(&fe->fe_f1, &x);
        CPYFPN(&fe->fe_f2, &p);
-       r = fpu_cmp(fe);
+       fe->fe_f2.fp_sign = 1;
+       r = fpu_add(fe);
        if (r->fp_sign == 0) {
-               CPYFPN(&fe->fe_f1, &x);
-               CPYFPN(&fe->fe_f2, &p);
-               fe->fe_f2.fp_sign = 1;
-               r = fpu_add(fe);
-
                CPYFPN(&fe->fe_f2, r);
                r = fpu_cos_halfpi(fe);
        } else {