From dc990066a301c231e5982a346f4809b4e0247a51 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Tue, 1 Mar 2011 19:07:27 +0200
Subject: [PATCH] drc: clear dynarec completely on CD image change

most likely only BIOS can be reused anyway, no need to stress
invalidation code needlessly (even if it does it all well).
---
 frontend/menu.c                       |  3 ++
 libpcsxcore/new_dynarec/new_dynarec.c | 46 +++++++++++++++++----------
 libpcsxcore/new_dynarec/new_dynarec.h |  1 +
 3 files changed, 33 insertions(+), 17 deletions(-)

diff --git a/frontend/menu.c b/frontend/menu.c
index a7aa8b2a..87b87888 100644
--- a/frontend/menu.c
+++ b/frontend/menu.c
@@ -25,6 +25,7 @@
 #include "../libpcsxcore/misc.h"
 #include "../libpcsxcore/cdrom.h"
 #include "../libpcsxcore/psemu_plugin_defs.h"
+#include "../libpcsxcore/new_dynarec/new_dynarec.h"
 #include "../plugins/dfinput/pad.h"
 #include "revision.h"
 
@@ -1349,6 +1350,8 @@ static int romsel_run(void)
 
 	printf("selected file: %s\n", fname);
 
+	new_dynarec_clear_full();
+
 	if (run_cd_image(fname) != 0)
 		return -1;
 
diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 1f33c756..72af92d1 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -7709,20 +7709,10 @@ void disassemble_inst(int i)
     }
 }
 
-void new_dynarec_init()
+// clear the state completely, instead of just marking
+// things invalid like invalidate_all_pages() does
+void new_dynarec_clear_full()
 {
-  printf("Init new dynarec\n");
-  out=(u_char *)BASE_ADDR;
-  if (mmap (out, 1<<TARGET_SIZE_2,
-            PROT_READ | PROT_WRITE | PROT_EXEC,
-            MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS,
-            -1, 0) <= 0) {printf("mmap() failed\n");}
-#ifdef MUPEN64
-  rdword=&readmem_dword;
-  fake_pc.f.r.rs=&readmem_dword;
-  fake_pc.f.r.rt=&readmem_dword;
-  fake_pc.f.r.rd=&readmem_dword;
-#endif
   int n;
   for(n=0x80000;n<0x80800;n++)
     invalid_code[n]=1;
@@ -7730,14 +7720,11 @@ void new_dynarec_init()
     hash_table[n][0]=hash_table[n][2]=-1;
   memset(mini_ht,-1,sizeof(mini_ht));
   memset(restore_candidate,0,sizeof(restore_candidate));
+  memset(shadow,0,sizeof(shadow));
   copy=shadow;
   expirep=16384; // Expiry pointer, +2 blocks
   pending_exception=0;
   literalcount=0;
-#ifdef HOST_IMM8
-  // Copy this into local area so we don't have to put it in every literal pool
-  invc_ptr=invalid_code;
-#endif
   stop_after_jal=0;
   // TLB
   using_tlb=0;
@@ -7747,6 +7734,31 @@ void new_dynarec_init()
     memory_map[n]=((u_int)rdram-0x80000000)>>2;
   for(n=526336;n<1048576;n++) // 0x80800000 .. 0xFFFFFFFF
     memory_map[n]=-1;
+  for(n=0;n<4096;n++) ll_clear(jump_in+n);
+  for(n=0;n<4096;n++) ll_clear(jump_out+n);
+  for(n=0;n<4096;n++) ll_clear(jump_dirty+n);
+}
+
+void new_dynarec_init()
+{
+  printf("Init new dynarec\n");
+  out=(u_char *)BASE_ADDR;
+  if (mmap (out, 1<<TARGET_SIZE_2,
+            PROT_READ | PROT_WRITE | PROT_EXEC,
+            MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS,
+            -1, 0) <= 0) {printf("mmap() failed\n");}
+#ifdef MUPEN64
+  rdword=&readmem_dword;
+  fake_pc.f.r.rs=&readmem_dword;
+  fake_pc.f.r.rt=&readmem_dword;
+  fake_pc.f.r.rd=&readmem_dword;
+#endif
+  int n;
+  new_dynarec_clear_full();
+#ifdef HOST_IMM8
+  // Copy this into local area so we don't have to put it in every literal pool
+  invc_ptr=invalid_code;
+#endif
 #ifdef MUPEN64
   for(n=0;n<0x8000;n++) { // 0 .. 0x7FFFFFFF
     writemem[n] = write_nomem_new;
diff --git a/libpcsxcore/new_dynarec/new_dynarec.h b/libpcsxcore/new_dynarec/new_dynarec.h
index 580977b5..14319da5 100644
--- a/libpcsxcore/new_dynarec/new_dynarec.h
+++ b/libpcsxcore/new_dynarec/new_dynarec.h
@@ -6,6 +6,7 @@ extern int stop;
 
 void new_dynarec_init();
 void new_dynarec_cleanup();
+void new_dynarec_clear_full();
 void new_dyna_start();
 
 void invalidate_all_pages();
-- 
2.39.2