div64 fix - raise_interrupt() fix - SSE fix

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1202 c046a42c-6fe2-441c-8c8c-71466251a162

5 files changed, 23 insertions, 28 deletions

diff --git a/target-i386/exec.h b/target-i386/exec.h
index 5529c35524..330343164a 100644
--- a/target-i386/exec.h
+++ b/target-i386/exec.h
@@ -176,17 +176,13 @@ void do_interrupt(int intno, int is_int, int error_code,
 void do_interrupt_user(int intno, int is_int, int error_code, 
                        target_ulong next_eip);
 void raise_interrupt(int intno, int is_int, int error_code, 
-                     unsigned int next_eip);
+                     int next_eip_addend);
 void raise_exception_err(int exception_index, int error_code);
 void raise_exception(int exception_index);
 void __hidden cpu_loop_exit(void);
 
 void OPPROTO op_movl_eflags_T0(void);
 void OPPROTO op_movl_T0_eflags(void);
-void raise_interrupt(int intno, int is_int, int error_code, 
-                     unsigned int next_eip);
-void raise_exception_err(int exception_index, int error_code);
-void raise_exception(int exception_index);
 void helper_divl_EAX_T0(void);
 void helper_idivl_EAX_T0(void);
 void helper_mulq_EAX_T0(void);
diff --git a/target-i386/helper.c b/target-i386/helper.c
index 64d6f9e7ad..2567657a7f 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1157,12 +1157,12 @@ void do_interrupt(int intno, int is_int, int error_code,
  * is_int is TRUE.  
  */
 void raise_interrupt(int intno, int is_int, int error_code, 
-                     unsigned int next_eip)
+                     int next_eip_addend)
 {
     env->exception_index = intno;
     env->error_code = error_code;
     env->exception_is_int = is_int;
-    env->exception_next_eip = next_eip;
+    env->exception_next_eip = env->eip + next_eip_addend;
     cpu_loop_exit();
 }
 
@@ -2929,14 +2929,14 @@ void helper_fxsave(target_ulong ptr, int data64)
     }
     
     if (env->cr[4] & CR4_OSFXSR_MASK) {
-        /* XXX: finish it, endianness */
+        /* XXX: finish it */
         stl(ptr + 0x18, 0); /* mxcsr */
         stl(ptr + 0x1c, 0); /* mxcsr_mask */
         nb_xmm_regs = 8 << data64;
         addr = ptr + 0xa0;
         for(i = 0; i < nb_xmm_regs; i++) {
-            stq(addr, env->xmm_regs[i].u.q[0]);
-            stq(addr, env->xmm_regs[i].u.q[1]);
+            stq(addr, env->xmm_regs[i].XMM_Q(0));
+            stq(addr + 8, env->xmm_regs[i].XMM_Q(1));
             addr += 16;
         }
     }
@@ -2972,8 +2972,8 @@ void helper_fxrstor(target_ulong ptr, int data64)
         nb_xmm_regs = 8 << data64;
         addr = ptr + 0xa0;
         for(i = 0; i < nb_xmm_regs; i++) {
-            env->xmm_regs[i].u.q[0] = ldq(addr);
-            env->xmm_regs[i].u.q[1] = ldq(addr);
+            env->xmm_regs[i].XMM_Q(0) = ldq(addr);
+            env->xmm_regs[i].XMM_Q(1) = ldq(addr + 8);
             addr += 16;
         }
     }
@@ -3099,6 +3099,7 @@ static void imul64(uint64_t *plow, uint64_t *phigh, int64_t a, int64_t b)
     }
 }
 
+/* XXX: overflow support */
 static void div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
 {
     uint64_t q, r, a1, a0;
@@ -3114,16 +3115,16 @@ static void div64(uint64_t *plow, uint64_t *phigh, uint64_t b)
     } else {
         /* XXX: use a better algorithm */
         for(i = 0; i < 64; i++) {
+            a1 = (a1 << 1) | (a0 >> 63);
             if (a1 >= b) {
                 a1 -= b;
                 qb = 1;
             } else {
                 qb = 0;
             }
-            a1 = (a1 << 1) | (a0 >> 63);
             a0 = (a0 << 1) | qb;
         }
-#if defined(DEBUG_MULDIV) || 1
+#if defined(DEBUG_MULDIV)
         printf("div: 0x%016llx%016llx / 0x%016llx: q=0x%016llx r=0x%016llx\n",
                *phigh, *plow, b, a0, a1);
 #endif
@@ -3167,7 +3168,7 @@ void helper_imulq_EAX_T0(void)
     EAX = r0;
     EDX = r1;
     CC_DST = r0;
-    CC_SRC = (r1 != (r0 >> 63));
+    CC_SRC = ((int64_t)r1 != ((int64_t)r0 >> 63));
 }
 
 void helper_imulq_T0_T1(void)
diff --git a/target-i386/op.c b/target-i386/op.c
index f81d59b161..9ce2a5a2b7 100644
--- a/target-i386/op.c
+++ b/target-i386/op.c
@@ -611,11 +611,10 @@ void OPPROTO op_debug(void)
 
 void OPPROTO op_raise_interrupt(void)
 {
-    int intno;
-    unsigned int next_eip;
+    int intno, next_eip_addend;
     intno = PARAM1;
-    next_eip = PARAM2;
-    raise_interrupt(intno, 1, 0, next_eip);
+    next_eip_addend = PARAM2;
+    raise_interrupt(intno, 1, 0, next_eip_addend);
 }
 
 void OPPROTO op_raise_exception(void)
diff --git a/target-i386/ops_mem.h b/target-i386/ops_mem.h
index 284ab71af4..21c17008b9 100644
--- a/target-i386/ops_mem.h
+++ b/target-i386/ops_mem.h
@@ -85,18 +85,16 @@ void OPPROTO glue(glue(op_ldo, MEMSUFFIX), _env_A0)(void)
 {
     XMMReg *p;
     p = (XMMReg *)((char *)env + PARAM1);
-    /* XXX: host endianness ? */
-    p->u.q[0] = glue(ldq, MEMSUFFIX)(A0);
-    p->u.q[1] = glue(ldq, MEMSUFFIX)(A0 + 8);
+    p->XMM_Q(0) = glue(ldq, MEMSUFFIX)(A0);
+    p->XMM_Q(1) = glue(ldq, MEMSUFFIX)(A0 + 8);
 }
 
 void OPPROTO glue(glue(op_sto, MEMSUFFIX), _env_A0)(void)
 {
     XMMReg *p;
     p = (XMMReg *)((char *)env + PARAM1);
-    /* XXX: host endianness ? */
-    glue(stq, MEMSUFFIX)(A0, p->u.q[0]);
-    glue(stq, MEMSUFFIX)(A0 + 8, p->u.q[1]);
+    glue(stq, MEMSUFFIX)(A0, p->XMM_Q(0));
+    glue(stq, MEMSUFFIX)(A0 + 8, p->XMM_Q(1));
 }
 
 #ifdef TARGET_X86_64
diff --git a/target-i386/translate.c b/target-i386/translate.c
index 743aff7653..686c184f15 100644
--- a/target-i386/translate.c
+++ b/target-i386/translate.c
@@ -2119,7 +2119,7 @@ static void gen_interrupt(DisasContext *s, int intno,
     if (s->cc_op != CC_OP_DYNAMIC)
         gen_op_set_cc_op(s->cc_op);
     gen_jmp_im(cur_eip);
-    gen_op_raise_interrupt(intno, next_eip);
+    gen_op_raise_interrupt(intno, (int)(next_eip - cur_eip));
     s->is_jmp = 3;
 }
 
@@ -4452,7 +4452,8 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
             goto illegal_op;
         if (s->cc_op != CC_OP_DYNAMIC)
             gen_op_set_cc_op(s->cc_op);
-        gen_op_into(s->pc - s->cs_base);
+        gen_jmp_im(pc_start - s->cs_base);
+        gen_op_into(s->pc - pc_start);
         break;
     case 0xf1: /* icebp (undocumented, exits to external debugger) */
 #if 0
@@ -4826,7 +4827,7 @@ static target_ulong disas_insn(DisasContext *s, target_ulong pc_start)
             /* nothing to do */
         }
         break;
-    case 0x1ae: /* sfence */
+    case 0x1ae:
         modrm = ldub_code(s->pc++);
         mod = (modrm >> 6) & 3;
         op = (modrm >> 3) & 7;