*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA
*/
#include "exec.h"
+#include "helpers.h"
#if defined(CONFIG_USER_ONLY)
extern int semihosting_enabled;
#define MMUSUFFIX _mmu
-#ifdef __s390__
-# define GETPC() ((void*)((unsigned long)__builtin_return_address(0) & 0x7fffffffUL))
-#else
-# define GETPC() (__builtin_return_address(0))
-#endif
#define SHIFT 0
#include "softmmu_template.h"
saved_env = env;
env = cpu_single_env;
ret = cpu_m68k_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
- if (__builtin_expect(ret, 0)) {
+ if (unlikely(ret)) {
if (retaddr) {
/* now we have a real cpu fault */
pc = (unsigned long)retaddr;
}
#endif
+
+static void raise_exception(int tt)
+{
+ env->exception_index = tt;
+ cpu_loop_exit();
+}
+
+void HELPER(raise_exception)(uint32_t tt)
+{
+ raise_exception(tt);
+}
+
+void HELPER(divu)(CPUState *env, uint32_t word)
+{
+ uint32_t num;
+ uint32_t den;
+ uint32_t quot;
+ uint32_t rem;
+ uint32_t flags;
+
+ num = env->div1;
+ den = env->div2;
+ /* ??? This needs to make sure the throwing location is accurate. */
+ if (den == 0)
+ raise_exception(EXCP_DIV0);
+ quot = num / den;
+ rem = num % den;
+ flags = 0;
+ /* Avoid using a PARAM1 of zero. This breaks dyngen because it uses
+ the address of a symbol, and gcc knows symbols can't have address
+ zero. */
+ if (word && quot > 0xffff)
+ flags |= CCF_V;
+ if (quot == 0)
+ flags |= CCF_Z;
+ else if ((int32_t)quot < 0)
+ flags |= CCF_N;
+ env->div1 = quot;
+ env->div2 = rem;
+ env->cc_dest = flags;
+}
+
+void HELPER(divs)(CPUState *env, uint32_t word)
+{
+ int32_t num;
+ int32_t den;
+ int32_t quot;
+ int32_t rem;
+ int32_t flags;
+
+ num = env->div1;
+ den = env->div2;
+ if (den == 0)
+ raise_exception(EXCP_DIV0);
+ quot = num / den;
+ rem = num % den;
+ flags = 0;
+ if (word && quot != (int16_t)quot)
+ flags |= CCF_V;
+ if (quot == 0)
+ flags |= CCF_Z;
+ else if (quot < 0)
+ flags |= CCF_N;
+ env->div1 = quot;
+ env->div2 = rem;
+ env->cc_dest = flags;
+}