Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/i386/tcg/fpu_helper.c | 30 ++++++++++++++----------------
1 file changed, 14 insertions(+), 16 deletions(-)
diff --git a/target/i386/tcg/fpu_helper.c b/target/i386/tcg/fpu_helper.c
index 6237cd8383..5ad6e04639 100644
--- a/target/i386/tcg/fpu_helper.c
+++ b/target/i386/tcg/fpu_helper.c
@@ -2442,20 +2442,15 @@ static void cpu_set_fpus(CPUX86State *env, uint16_t fpus)
#endif
}
-static void do_fldenv(CPUX86State *env, target_ulong ptr, int data32,
- uintptr_t retaddr)
+static void do_fldenv(X86Access *ac, target_ulong ptr, int data32)
{
int i, fpus, fptag;
+ CPUX86State *env = ac->env;
+
+ cpu_set_fpuc(env, access_ldw(ac, ptr));
+ fpus = access_ldw(ac, ptr + (2 << data32));
+ fptag = access_ldw(ac, ptr + (4 << data32));
- if (data32) {
- cpu_set_fpuc(env, cpu_lduw_data_ra(env, ptr, retaddr));
- fpus = cpu_lduw_data_ra(env, ptr + 4, retaddr);
- fptag = cpu_lduw_data_ra(env, ptr + 8, retaddr);
- } else {
- cpu_set_fpuc(env, cpu_lduw_data_ra(env, ptr, retaddr));
- fpus = cpu_lduw_data_ra(env, ptr + 2, retaddr);
- fptag = cpu_lduw_data_ra(env, ptr + 4, retaddr);
- }
cpu_set_fpus(env, fpus);
for (i = 0; i < 8; i++) {
env->fptags[i] = ((fptag & 3) == 3);
@@ -2465,7 +2460,10 @@ static void do_fldenv(CPUX86State *env, target_ulong ptr, int data32,
void helper_fldenv(CPUX86State *env, target_ulong ptr, int data32)
{
- do_fldenv(env, ptr, data32, GETPC());
+ X86Access ac;
+
+ access_prepare(&ac, env, ptr, 14 << data32, MMU_DATA_STORE, GETPC());
+ do_fldenv(&ac, ptr, data32);
}
static void do_fsave(CPUX86State *env, target_ulong ptr, int data32,
@@ -2499,12 +2497,12 @@ static void do_frstor(CPUX86State *env, target_ulong ptr, int data32,
{
X86Access ac;
floatx80 tmp;
- int i;
+ int i, envsize = 14 << data32;
- do_fldenv(env, ptr, data32, retaddr);
- ptr += (target_ulong)14 << data32;
+ access_prepare(&ac, env, ptr, envsize + 80, MMU_DATA_LOAD, retaddr);
- access_prepare(&ac, env, ptr, 80, MMU_DATA_LOAD, retaddr);
+ do_fldenv(&ac, ptr, data32);
+ ptr += envsize;
for (i = 0; i < 8; i++) {
tmp = do_fldt(&ac, ptr);
--
2.34.1