Stand-alone SCI/SCIF emulation code, by Magnus Damm.

[qemu] / translate-all.c

diff --git a/translate-all.c b/translate-all.c
index fd7cc66..197c48c 100644 (file)
--- a/translate-all.c
+++ b/translate-all.c
@@ -1,6 +1,6 @@
 /*
  *  Host code generation
- * 
+ *
  *  Copyright (c) 2003 Fabrice Bellard
  *
  * This library is free software; you can redistribute it and/or
@@ -52,6 +52,9 @@ uint8_t gen_opc_instr_start[OPC_BUF_SIZE];
 uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
 #elif defined(TARGET_SPARC)
 target_ulong gen_opc_npc[OPC_BUF_SIZE];
+target_ulong gen_opc_jump_pc[2];
+#elif defined(TARGET_MIPS)
+uint32_t gen_opc_hflags[OPC_BUF_SIZE];
 #endif
 
 int code_copy_enabled = 1;
@@ -86,7 +89,7 @@ void dump_ops(const uint16_t *opc_buf, const uint32_t *opparam_buf)
     for(;;) {
         c = *opc_ptr++;
         n = op_nb_args[c];
-        fprintf(logfile, "0x%04x: %s", 
+        fprintf(logfile, "0x%04x: %s",
                 (int)(opc_ptr - opc_buf - 1), op_str[c]);
         for(i = 0; i < n; i++) {
             fprintf(logfile, " 0x%x", opparam_ptr[i]);
@@ -107,11 +110,11 @@ static void dyngen_labels(long *gen_labels, int nb_gen_labels,
     uint8_t *gen_code_ptr;
     int c, i;
     unsigned long gen_code_addr[OPC_BUF_SIZE];
-    
+
     if (nb_gen_labels == 0)
         return;
     /* compute the address of each op code */
-    
+
     gen_code_ptr = gen_code_buf;
     i = 0;
     for(;;) {
@@ -122,7 +125,7 @@ static void dyngen_labels(long *gen_labels, int nb_gen_labels,
         gen_code_ptr += opc_copy_size[c];
         i++;
     }
-    
+
     /* compute the address of each label */
     for(i = 0; i < nb_gen_labels; i++) {
         gen_labels[i] = gen_code_addr[gen_labels[i]];
@@ -130,7 +133,7 @@ static void dyngen_labels(long *gen_labels, int nb_gen_labels,
 }
 
 /* return non zero if the very first instruction is invalid so that
-   the virtual CPU can trigger an exception. 
+   the virtual CPU can trigger an exception.
 
    '*gen_code_size_ptr' contains the size of the generated code (host
    code).
@@ -182,9 +185,9 @@ int cpu_gen_code(CPUState *env, TranslationBlock *tb,
     return 0;
 }
 
-/* The cpu state corresponding to 'searched_pc' is restored. 
+/* The cpu state corresponding to 'searched_pc' is restored.
  */
-int cpu_restore_state(TranslationBlock *tb, 
+int cpu_restore_state(TranslationBlock *tb,
                       CPUState *env, unsigned long searched_pc,
                       void *puc)
 {
@@ -199,7 +202,7 @@ int cpu_restore_state(TranslationBlock *tb,
 #endif
     if (gen_intermediate_code_pc(env, tb) < 0)
         return -1;
-    
+
     /* find opc index corresponding to search_pc */
     tc_ptr = (unsigned long)tb->tc_ptr;
     if (searched_pc < tc_ptr)
@@ -231,8 +234,8 @@ int cpu_restore_state(TranslationBlock *tb,
                     fprintf(logfile, "0x%04x: " TARGET_FMT_lx "\n", i, gen_opc_pc[i]);
                 }
             }
-            fprintf(logfile, "spc=0x%08lx j=0x%x eip=" TARGET_FMT_lx " cs_base=%x\n", 
-                    searched_pc, j, gen_opc_pc[j] - tb->cs_base, 
+            fprintf(logfile, "spc=0x%08lx j=0x%x eip=" TARGET_FMT_lx " cs_base=%x\n",
+                    searched_pc, j, gen_opc_pc[j] - tb->cs_base,
                     (uint32_t)tb->cs_base);
         }
 #endif
@@ -244,9 +247,23 @@ int cpu_restore_state(TranslationBlock *tb,
 #elif defined(TARGET_ARM)
     env->regs[15] = gen_opc_pc[j];
 #elif defined(TARGET_SPARC)
-    /* XXX: restore npc too */
-    env->pc = gen_opc_pc[j];
-    env->npc = gen_opc_npc[j];
+    {
+        target_ulong npc;
+        env->pc = gen_opc_pc[j];
+        npc = gen_opc_npc[j];
+        if (npc == 1) {
+            /* dynamic NPC: already stored */
+        } else if (npc == 2) {
+            target_ulong t2 = (target_ulong)puc;
+            /* jump PC: use T2 and the jump targets of the translation */
+            if (t2)
+                env->npc = gen_opc_jump_pc[0];
+            else
+                env->npc = gen_opc_jump_pc[1];
+        } else {
+            env->npc = npc;
+        }
+    }
 #elif defined(TARGET_PPC)
     {
         int type;
@@ -262,7 +279,7 @@ int cpu_restore_state(TranslationBlock *tb,
         case INDEX_op_ ## op ## _user:\
         case INDEX_op_ ## op ## _kernel
 #endif
-            
+
         CASE3(stfd):
         CASE3(stfs):
         CASE3(lfd):
@@ -285,6 +302,14 @@ int cpu_restore_state(TranslationBlock *tb,
         }
         env->access_type = type;
     }
+#elif defined(TARGET_M68K)
+    env->pc = gen_opc_pc[j];
+#elif defined(TARGET_MIPS)
+    env->PC[env->current_tc] = gen_opc_pc[j];
+    env->hflags &= ~MIPS_HFLAG_BMASK;
+    env->hflags |= gen_opc_hflags[j];
+#elif defined(TARGET_ALPHA)
+    env->pc = gen_opc_pc[j];
 #endif
     return 0;
 }