[Qemu-devel] [6568] target-ppc: Add v{max,min}fp instructions

[Aurelien Jarno]

Revision: 6568
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6568
Author:   aurel32
Date:     2009-02-09 16:48:39 +0000 (Mon, 09 Feb 2009)

Log Message:
-----------
target-ppc: Add v{max,min}fp instructions

Signed-off-by: Nathan Froyd <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>

Modified Paths:
--------------
    trunk/target-ppc/helper.h
    trunk/target-ppc/op_helper.c
    trunk/target-ppc/translate.c

Modified: trunk/target-ppc/helper.h
===================================================================
--- trunk/target-ppc/helper.h   2009-02-09 15:50:36 UTC (rev 6567)
+++ trunk/target-ppc/helper.h   2009-02-09 16:48:39 UTC (rev 6568)
@@ -232,6 +232,8 @@
 DEF_HELPER_3(vsum4sbs, void, avr, avr, avr)
 DEF_HELPER_3(vsum4shs, void, avr, avr, avr)
 DEF_HELPER_3(vsum4ubs, void, avr, avr, avr)
+DEF_HELPER_3(vmaxfp, void, avr, avr, avr)
+DEF_HELPER_3(vminfp, void, avr, avr, avr)
 DEF_HELPER_2(vlogefp, void, avr, avr)
 DEF_HELPER_2(vrfim, void, avr, avr)
 DEF_HELPER_2(vrfin, void, avr, avr)

Modified: trunk/target-ppc/op_helper.c
===================================================================
--- trunk/target-ppc/op_helper.c        2009-02-09 15:50:36 UTC (rev 6567)
+++ trunk/target-ppc/op_helper.c        2009-02-09 16:48:39 UTC (rev 6568)
@@ -2262,6 +2262,24 @@
 #undef VMINMAX_DO
 #undef VMINMAX
 
+#define VMINMAXFP(suffix, rT, rF)                                       \
+    void helper_v##suffix (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)    \
+    {                                                                   \
+        int i;                                                          \
+        for (i = 0; i < ARRAY_SIZE(r->f); i++) {                        \
+            HANDLE_NAN2(r->f[i], a->f[i], b->f[i]) {                    \
+                if (float32_lt_quiet(a->f[i], b->f[i], &env->vec_status)) { \
+                    r->f[i] = rT->f[i];                                 \
+                } else {                                                \
+                    r->f[i] = rF->f[i];                                 \
+                }                                                       \
+            }                                                           \
+        }                                                               \
+    }
+VMINMAXFP(minfp, a, b)
+VMINMAXFP(maxfp, b, a)
+#undef VMINMAXFP
+
 void helper_vmladduhm (ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b, ppc_avr_t *c)
 {
     int i;

Modified: trunk/target-ppc/translate.c
===================================================================
--- trunk/target-ppc/translate.c        2009-02-09 15:50:36 UTC (rev 6567)
+++ trunk/target-ppc/translate.c        2009-02-09 16:48:39 UTC (rev 6568)
@@ -6395,6 +6395,8 @@
 GEN_VXFORM(vsum4shs, 4, 25);
 GEN_VXFORM(vsum2sws, 4, 26);
 GEN_VXFORM(vsumsws, 4, 30);
+GEN_VXFORM(vmaxfp, 5, 16);
+GEN_VXFORM(vminfp, 5, 17);
 
 #define GEN_VXRFORM1(opname, name, str, opc2, opc3)                     \
     GEN_HANDLER2(name, str, 0x4, opc2, opc3, 0x00000000, PPC_ALTIVEC)   \