Implement ldxfsr/stxfsr, fix ld(x)fsr masks, convert to TCG

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5185 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 12 insertions, 4 deletions

diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index 75020a92f2..75d648bab1 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -2487,11 +2487,10 @@ void helper_stqf(target_ulong addr, int mem_idx)
 #endif
 }
 
-void helper_ldfsr(void)
+static inline void set_fsr(void)
 {
     int rnd_mode;
 
-    PUT_FSR32(env, *((uint32_t *) &FT0));
     switch (env->fsr & FSR_RD_MASK) {
     case FSR_RD_NEAREST:
         rnd_mode = float_round_nearest_even;
@@ -2510,11 +2509,20 @@ void helper_ldfsr(void)
     set_float_rounding_mode(rnd_mode, &env->fp_status);
 }
 
-void helper_stfsr(void)
+void helper_ldfsr(uint32_t new_fsr)
 {
-    *((uint32_t *) &FT0) = GET_FSR32(env);
+    env->fsr = (new_fsr & FSR_LDFSR_MASK) | (env->fsr & FSR_LDFSR_OLDMASK);
+    set_fsr();
 }
 
+#ifdef TARGET_SPARC64
+void helper_ldxfsr(uint64_t new_fsr)
+{
+    env->fsr = (new_fsr & FSR_LDXFSR_MASK) | (env->fsr & FSR_LDXFSR_OLDMASK);
+    set_fsr();
+}
+#endif
+
 void helper_debug(void)
 {
     env->exception_index = EXCP_DEBUG;