ppc fixes (Jocelyn Mayer)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@765 c046a42c-6fe2-441c-8c8c-71466251a162

target-ppc/exec.h

@@ -139,6 +139,8 @@ void do_sraw(void);
 
 void do_fctiw (void);
 void do_fctiwz (void);
+void do_fnmadds (void);
+void do_fnmsubs (void);
 void do_fsqrt (void);
 void do_fsqrts (void);
 void do_fres (void);

target-ppc/helper.c

@@ -163,7 +163,6 @@ static int get_bat (CPUState *env, uint32_t *real, int *prot,
                    *BATu, *BATl, BEPIu, BEPIl, bl);
         }
 #endif
-        env->spr[DAR] = virtual;
     }
     /* No hit */
     return ret;
@@ -543,12 +542,12 @@ int cpu_ppc_handle_mmu_fault (CPUState *env, uint32_t address, int rw,
     access_type = env->access_type;
     if (env->user_mode_only) {
         /* user mode only emulation */
-        ret = -1;
+        ret = -2;
         goto do_fault;
     }
     /* NASTY BUG workaround */
     if (access_type == ACCESS_CODE && rw) {
-	//	printf("%s: ERROR WRITE CODE ACCESS\n", __func__);
+	printf("%s: ERROR WRITE CODE ACCESS\n", __func__);
 	access_type = ACCESS_INT;
     }
     ret = get_physical_address(env, &physical, &prot,
@@ -674,10 +673,10 @@ uint32_t _load_msr (CPUState *env)
 
 void _store_msr (CPUState *env, uint32_t value)
 {
-    if (((T0 >> MSR_IR) & 0x01) != msr_ir ||
-        ((T0 >> MSR_DR) & 0x01) != msr_dr) {
+    if (((value >> MSR_IR) & 0x01) != msr_ir ||
+        ((value >> MSR_DR) & 0x01) != msr_dr) {
         /* Flush all tlb when changing translation mode or privilege level */
-        do_tlbia();
+	tlb_flush(env, 1);
     }
     msr_pow = (value >> MSR_POW) & 0x03;
     msr_ile = (value >> MSR_ILE) & 0x01;
@@ -931,7 +930,7 @@ void do_interrupt (CPUState *env)
     env->nip = excp << 8;
     env->exception_index = EXCP_NONE;
     /* Invalidate all TLB as we may have changed translation mode */
-    do_tlbia();
+    tlb_flush(env, 1);
     /* ensure that no TB jump will be modified as
        the program flow was changed */
 #ifdef __sparc__

target-ppc/op.c

@@ -1368,28 +1368,32 @@ PPC_OP(fmsubs)
 /* fnmadd - fnmadd. - fnmadds - fnmadds. */
 PPC_OP(fnmadd)
 {
-    FT0 = -((FT0 * FT1) + FT2);
+    FT0 *= FT1;
+    FT0 += FT2;
+    FT0 = -FT0;
     RETURN();
 }
 
 /* fnmadds - fnmadds. */
 PPC_OP(fnmadds)
 {
-    FTS0 = -((FTS0 * FTS1) + FTS2);
+    do_fnmadds();
     RETURN();
 }
 
 /* fnmsub - fnmsub. */
 PPC_OP(fnmsub)
 {
-    FT0 = -((FT0 * FT1) - FT2);
+    FT0 *= FT1;
+    FT0 -= FT2;
+    FT0 = -FT0;
     RETURN();
 }
 
 /* fnmsubs - fnmsubs. */
 PPC_OP(fnmsubs)
 {
-    FTS0 = -((FTS0 * FTS1) - FTS2);
+    do_fnmsubs();
     RETURN();
 }
 

target-ppc/op_helper.c

@@ -267,6 +267,16 @@ void do_fctiwz (void)
     fesetround(cround);
 }
 
+void do_fnmadds (void)
+{
+    FTS0 = -((FTS0 * FTS1) + FTS2);
+}
+
+void do_fnmsubs (void)
+{
+    FTS0 = -((FTS0 * FTS1) - FTS2);
+}
+
 void do_fsqrt (void)
 {
     FT0 = sqrt(FT0);

target-ppc/translate.c

@@ -276,7 +276,7 @@ static inline uint32_t MASK (uint32_t start, uint32_t end)
 }
 
 #define GEN_OPCODE(name, op1, op2, op3, invl, _typ)                           \
-__attribute__ ((section(".opcodes"), unused))                                 \
+__attribute__ ((section(".opcodes"), unused, aligned (8) ))                   \
 static opcode_t opc_##name = {                                                \
     .opc1 = op1,                                                              \
     .opc2 = op2,                                                              \
@@ -289,7 +289,7 @@ static opcode_t opc_##name = {                                                \
 }
 
 #define GEN_OPCODE_MARK(name)                                                 \
-__attribute__ ((section(".opcodes"), unused))                                 \
+__attribute__ ((section(".opcodes"), unused, aligned (8) ))                   \
 static opcode_t opc_##name = {                                                \
     .opc1 = 0xFF,                                                             \
     .opc2 = 0xFF,                                                             \
@@ -3144,7 +3144,9 @@ int gen_intermediate_code_internal (CPUState *env, TranslationBlock *tb,
         fprintf(logfile, "---------------- excp: %04x\n", ctx.exception);
         cpu_ppc_dump_state(env, logfile, 0);
         fprintf(logfile, "IN: %s\n", lookup_symbol((void *)pc_start));
+#if defined(CONFIG_USER_ONLY)
 	disas(logfile, (void *)pc_start, ctx.nip - pc_start, 0, 0);
+#endif
         fprintf(logfile, "\n");
 
         fprintf(logfile, "OP:\n");