Core commit. Compile and run on the OpenPandora

[mupen64plus-pandora.git] / source / mupen64plus-core / src / r4300 / exception.c

diff --git a/source/mupen64plus-core/src/r4300/exception.c b/source/mupen64plus-core/src/r4300/exception.c
new file mode 100644 (file)
index 0000000..af3e60f
--- /dev/null
+++ b/source/mupen64plus-core/src/r4300/exception.c
@@ -0,0 +1,144 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ *   Mupen64plus - exception.c                                             *
+ *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
+ *   Copyright (C) 2002 Hacktarux                                          *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include "api/m64p_types.h"
+#include "api/callbacks.h"
+#include "memory/memory.h"
+
+#include "exception.h"
+#include "r4300.h"
+#include "macros.h"
+#include "recomph.h"
+
+void TLB_refill_exception(unsigned int address, int w)
+{
+   int usual_handler = 0, i;
+
+   if (r4300emu != CORE_DYNAREC && w != 2) update_count();
+   if (w == 1) Cause = (3 << 2);
+   else Cause = (2 << 2);
+   BadVAddr = address;
+   Context = (Context & 0xFF80000F) | ((address >> 9) & 0x007FFFF0);
+   EntryHi = address & 0xFFFFE000;
+   if (Status & 0x2) // Test de EXL
+     {
+    generic_jump_to(0x80000180);
+    if(delay_slot==1 || delay_slot==3) Cause |= 0x80000000;
+    else Cause &= 0x7FFFFFFF;
+     }
+   else
+     {
+    if (r4300emu != CORE_PURE_INTERPRETER) 
+      {
+         if (w!=2)
+           EPC = PC->addr;
+         else
+           EPC = address;
+      }
+    else EPC = PC->addr;
+         
+    Cause &= ~0x80000000;
+    Status |= 0x2; //EXL=1
+    
+    if (address >= 0x80000000 && address < 0xc0000000)
+      usual_handler = 1;
+    for (i=0; i<32; i++)
+      {
+         if (/*tlb_e[i].v_even &&*/ address >= tlb_e[i].start_even &&
+         address <= tlb_e[i].end_even)
+           usual_handler = 1;
+         if (/*tlb_e[i].v_odd &&*/ address >= tlb_e[i].start_odd &&
+         address <= tlb_e[i].end_odd)
+           usual_handler = 1;
+      }
+    if (usual_handler)
+      {
+         generic_jump_to(0x80000180);
+      }
+    else
+      {
+         generic_jump_to(0x80000000);
+      }
+     }
+   if(delay_slot==1 || delay_slot==3)
+     {
+    Cause |= 0x80000000;
+    EPC-=4;
+     }
+   else
+     {
+    Cause &= 0x7FFFFFFF;
+     }
+   if(w != 2) EPC-=4;
+   
+   last_addr = PC->addr;
+   
+   if (r4300emu == CORE_DYNAREC) 
+     {
+    dyna_jump();
+    if (!dyna_interp) delay_slot = 0;
+     }
+   
+   if (r4300emu != CORE_DYNAREC || dyna_interp)
+     {
+    dyna_interp = 0;
+    if (delay_slot)
+      {
+         skip_jump = PC->addr;
+         next_interupt = 0;
+      }
+     }
+}
+
+void exception_general(void)
+{
+   update_count();
+   Status |= 2;
+   
+   EPC = PC->addr;
+   
+   if(delay_slot==1 || delay_slot==3)
+     {
+    Cause |= 0x80000000;
+    EPC-=4;
+     }
+   else
+     {
+    Cause &= 0x7FFFFFFF;
+     }
+   generic_jump_to(0x80000180);
+   last_addr = PC->addr;
+   if (r4300emu == CORE_DYNAREC)
+     {
+    dyna_jump();
+    if (!dyna_interp) delay_slot = 0;
+     }
+   if (r4300emu != CORE_DYNAREC || dyna_interp)
+     {
+    dyna_interp = 0;
+    if (delay_slot)
+      {
+         skip_jump = PC->addr;
+         next_interupt = 0;
+      }
+     }
+}
+