Convert udiv and sdiv ops to TCG

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4088 c046a42c-6fe2-441c-8c8c-71466251a162

Convert udiv and sdiv ops to TCG
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4088 c046a42c-6fe2-441c-8c8c-71466251a162
blueswir1
1 parent 2483386a
Showing 4 changed files with 58 additions and 49 deletions
target-sparc/helper.h
target-sparc/op.c
target-sparc/op_helper.c
target-sparc/translate.c
@@ -36,6 +36,8 @@ void TCG_HELPER_PROTO helper_trapcc(target_ulong nb_trap,
                                     target_ulong do_trap);
 void TCG_HELPER_PROTO helper_debug(void);
 void TCG_HELPER_PROTO helper_flush(target_ulong addr);
+target_ulong TCG_HELPER_PROTO helper_udiv(target_ulong a, target_ulong b);
+target_ulong TCG_HELPER_PROTO helper_sdiv(target_ulong a, target_ulong b);
 uint64_t TCG_HELPER_PROTO helper_pack64(target_ulong high, target_ulong low);
 uint64_t TCG_HELPER_PROTO helper_ld_asi(target_ulong addr, int asi,
                                         int size, int sign);
@@ -169,54 +169,6 @@
 #include "fop_template.h"
 #endif
  
-#define FLAG_SET(x) ((env->psr&x)?1:0)
-
-void OPPROTO op_udiv_T1_T0(void)
-{
-    uint64_t x0;
-    uint32_t x1;
-
-    x0 = T0 | ((uint64_t) (env->y) << 32);
-    x1 = T1;
-
-    if (x1 == 0) {
-        raise_exception(TT_DIV_ZERO);
-    }
-
-    x0 = x0 / x1;
-    if (x0 > 0xffffffff) {
-        T0 = 0xffffffff;
-        T1 = 1;
-    } else {
-        T0 = x0;
-        T1 = 0;
-    }
-    FORCE_RET();
-}
-
-void OPPROTO op_sdiv_T1_T0(void)
-{
-    int64_t x0;
-    int32_t x1;
-
-    x0 = T0 | ((int64_t) (env->y) << 32);
-    x1 = T1;
-
-    if (x1 == 0) {
-        raise_exception(TT_DIV_ZERO);
-    }
-
-    x0 = x0 / x1;
-    if ((int32_t) x0 != x0) {
-        T0 = x0 < 0? 0x80000000: 0x7fffffff;
-        T1 = 1;
-    } else {
-        T0 = x0;
-        T1 = 0;
-    }
-    FORCE_RET();
-}
-
 /* Load and store */
 #define MEMSUFFIX _raw
 #include "op_mem.h"
@@ -1582,6 +1582,50 @@ void helper_rett(void)
 }
 #endif
  
+target_ulong helper_udiv(target_ulong a, target_ulong b)
+{
+    uint64_t x0;
+    uint32_t x1;
+
+    x0 = a | ((uint64_t) (env->y) << 32);
+    x1 = b;
+
+    if (x1 == 0) {
+        raise_exception(TT_DIV_ZERO);
+    }
+
+    x0 = x0 / x1;
+    if (x0 > 0xffffffff) {
+        env->cc_src2 = 1;
+        return 0xffffffff;
+    } else {
+        env->cc_src2 = 0;
+        return x0;
+    }
+}
+
+target_ulong helper_sdiv(target_ulong a, target_ulong b)
+{
+    int64_t x0;
+    int32_t x1;
+
+    x0 = a | ((int64_t) (env->y) << 32);
+    x1 = b;
+
+    if (x1 == 0) {
+        raise_exception(TT_DIV_ZERO);
+    }
+
+    x0 = x0 / x1;
+    if ((int32_t) x0 != x0) {
+        env->cc_src2 = 1;
+        return x0 < 0? 0x80000000: 0x7fffffff;
+    } else {
+        env->cc_src2 = 0;
+        return x0;
+    }
+}
+
 uint64_t helper_pack64(target_ulong high, target_ulong low)
 {
     return ((uint64_t)high << 32) | (uint64_t)(low & 0xffffffff);
@@ -807,6 +807,16 @@ static inline void gen_op_smul_T1_T0(void)
     tcg_gen_discard_i64(r_temp2);
 }
  
+static inline void gen_op_udiv_T1_T0(void)
+{
+    tcg_gen_helper_1_2(helper_udiv, cpu_T[0], cpu_T[0], cpu_T[1]);
+}
+
+static inline void gen_op_sdiv_T1_T0(void)
+{
+    tcg_gen_helper_1_2(helper_sdiv, cpu_T[0], cpu_T[0], cpu_T[1]);
+}
+
 #ifdef TARGET_SPARC64
 static inline void gen_trap_ifdivzero_i64(TCGv divisor)
 {
@@ -842,7 +852,8 @@ static inline void gen_op_div_cc(void)
     gen_cc_clear();
     gen_cc_NZ(cpu_T[0]);
     l1 = gen_new_label();
-    tcg_gen_brcond_i32(TCG_COND_EQ, cpu_T[1], tcg_const_i32(0), l1);
+    tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUSPARCState, cc_src2));
+    tcg_gen_brcond_tl(TCG_COND_EQ, cpu_tmp0, tcg_const_tl(0), l1);
     tcg_gen_ori_i32(cpu_psr, cpu_psr, PSR_OVF);
     gen_set_label(l1);
 }