commit ba62494483ab51ee31c70952b6ce5171a31860b1
author Laurent Vivier <laurent@vivier.eu> Tue Jun 20 22:51:20 2017 +0200
committer Laurent Vivier <laurent@vivier.eu> Wed Jun 21 22:11:55 2017 +0200
tree 34879597689b9df1d8b8e9548051e1abdbb66e5f
parent 5a4526b26ab22b255126301227c5ceb2f0222bc5

target-m68k: add FPCR and FPSR

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170620205121.26515-6-laurent@vivier.eu>

target/m68k/helper.c

diff --git a/target/m68k/helper.c b/target/m68k/helper.c
index f2de6b5..caae291 100644
--- a/target/m68k/helper.c
+++ b/target/m68k/helper.c
@@ -80,8 +80,14 @@
         stfq_p(mem_buf, floatx80_to_float64(env->fregs[n].d, &s));
         return 8;
     }
-    if (n < 11) {
-        /* FP control registers (not implemented)  */
+    switch (n) {
+    case 8: /* fpcontrol */
+        stl_be_p(mem_buf, env->fpcr);
+        return 4;
+    case 9: /* fpstatus */
+        stl_be_p(mem_buf, env->fpsr);
+        return 4;
+    case 10: /* fpiar, not implemented */
         memset(mem_buf, 0, 4);
         return 4;
     }
@@ -95,8 +101,14 @@
         env->fregs[n].d = float64_to_floatx80(ldfq_p(mem_buf), &s);
         return 8;
     }
-    if (n < 11) {
-        /* FP control registers (not implemented)  */
+    switch (n) {
+    case 8: /* fpcontrol */
+        cpu_m68k_set_fpcr(env, ldl_p(mem_buf));
+        return 4;
+    case 9: /* fpstatus */
+        env->fpsr = ldl_p(mem_buf);
+        return 4;
+    case 10: /* fpiar, not implemented */
         return 4;
     }
     return 0;
@@ -133,7 +145,7 @@
     }
     switch (n) {
     case 8: /* fpcontrol */
-        env->fpcr = ldl_p(mem_buf);
+        cpu_m68k_set_fpcr(env, ldl_p(mem_buf));
         return 4;
     case 9: /* fpstatus */
         env->fpsr = ldl_p(mem_buf);