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Diffstat (limited to 'target/openrisc/translate.c')
-rw-r--r--target/openrisc/translate.c72
1 files changed, 32 insertions, 40 deletions
diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c
index 76e53c78d4..43ba0cc1ad 100644
--- a/target/openrisc/translate.c
+++ b/target/openrisc/translate.c
@@ -819,45 +819,12 @@ static bool trans_l_xori(DisasContext *dc, arg_rri *a)
 
 static bool trans_l_mfspr(DisasContext *dc, arg_l_mfspr *a)
 {
-    check_r0_write(dc, a->d);
-
-    if (is_user(dc)) {
-        gen_illegal_exception(dc);
-    } else {
-        TCGv spr = tcg_temp_new();
-
-        if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
-            gen_io_start();
-            if (dc->delayed_branch) {
-                tcg_gen_mov_tl(cpu_pc, jmp_pc);
-                tcg_gen_discard_tl(jmp_pc);
-            } else {
-                tcg_gen_movi_tl(cpu_pc, dc->base.pc_next + 4);
-            }
-            dc->base.is_jmp = DISAS_EXIT;
-        }
+    TCGv spr = tcg_temp_new();
 
-        tcg_gen_ori_tl(spr, cpu_R(dc, a->a), a->k);
-        gen_helper_mfspr(cpu_R(dc, a->d), cpu_env, cpu_R(dc, a->d), spr);
-    }
-    return true;
-}
-
-static bool trans_l_mtspr(DisasContext *dc, arg_l_mtspr *a)
-{
-    if (is_user(dc)) {
-        gen_illegal_exception(dc);
-    } else {
-        TCGv spr;
+    check_r0_write(dc, a->d);
 
-        if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
-            gen_io_start();
-        }
-        /* For SR, we will need to exit the TB to recognize the new
-         * exception state.  For NPC, in theory this counts as a branch
-         * (although the SPR only exists for use by an ICE).  Save all
-         * of the cpu state first, allowing it to be overwritten.
-         */
+    if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
+        gen_io_start();
         if (dc->delayed_branch) {
             tcg_gen_mov_tl(cpu_pc, jmp_pc);
             tcg_gen_discard_tl(jmp_pc);
@@ -865,11 +832,36 @@ static bool trans_l_mtspr(DisasContext *dc, arg_l_mtspr *a)
             tcg_gen_movi_tl(cpu_pc, dc->base.pc_next + 4);
         }
         dc->base.is_jmp = DISAS_EXIT;
+    }
+
+    tcg_gen_ori_tl(spr, cpu_R(dc, a->a), a->k);
+    gen_helper_mfspr(cpu_R(dc, a->d), cpu_env, cpu_R(dc, a->d), spr);
+    return true;
+}
+
+static bool trans_l_mtspr(DisasContext *dc, arg_l_mtspr *a)
+{
+    TCGv spr = tcg_temp_new();
 
-        spr = tcg_temp_new();
-        tcg_gen_ori_tl(spr, cpu_R(dc, a->a), a->k);
-        gen_helper_mtspr(cpu_env, spr, cpu_R(dc, a->b));
+    if (tb_cflags(dc->base.tb) & CF_USE_ICOUNT) {
+        gen_io_start();
     }
+    /*
+     * For SR, we will need to exit the TB to recognize the new
+     * exception state.  For NPC, in theory this counts as a branch
+     * (although the SPR only exists for use by an ICE).  Save all
+     * of the cpu state first, allowing it to be overwritten.
+     */
+    if (dc->delayed_branch) {
+        tcg_gen_mov_tl(cpu_pc, jmp_pc);
+        tcg_gen_discard_tl(jmp_pc);
+    } else {
+        tcg_gen_movi_tl(cpu_pc, dc->base.pc_next + 4);
+    }
+    dc->base.is_jmp = DISAS_EXIT;
+
+    tcg_gen_ori_tl(spr, cpu_R(dc, a->a), a->k);
+    gen_helper_mtspr(cpu_env, spr, cpu_R(dc, a->b));
     return true;
 }