drc: rework bios fastboot hack a bit

it was not handling reloads/resets well.

diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 347fd3d..6061f51 100644 (file)
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -385,9 +385,6 @@ void *get_addr(u_int vaddr)
   //printf("TRACE: count=%d next=%d (get_addr no-match %x)\n",Count,next_interupt,vaddr);
   int r=new_recompile_block(vaddr);
   if(r==0) return get_addr(vaddr);
-#ifdef PCSX
-  return (void *)r;
-#else
   // Execute in unmapped page, generate pagefault execption
   Status|=2;
   Cause=(vaddr<<31)|0x8;
@@ -396,7 +393,6 @@ void *get_addr(u_int vaddr)
   Context=(Context&0xFF80000F)|((BadVAddr>>9)&0x007FFFF0);
   EntryHi=BadVAddr&0xFFFFE000;
   return get_addr_ht(0x80000000);
-#endif
 }
 // Look up address in hash table first
 void *get_addr_ht(u_int vaddr)
@@ -7747,8 +7743,7 @@ int new_recompile_block(int addr)
   start = (u_int)addr&~3;
   //assert(((u_int)addr&1)==0);
 #ifdef PCSX
-  if ((Config.HLE && start == 0x80001000) || // hlecall
-      (/*psxRegs.pc != 0x80030000 &&*/ start == 0x80030000)) // fastbios thing
+  if (Config.HLE && start == 0x80001000) // hlecall
   {
     // XXX: is this enough? Maybe check hleSoftCall?
     u_int beginning=(u_int)out;
@@ -7760,10 +7755,7 @@ int new_recompile_block(int addr)
 #ifdef __arm__
     __clear_cache((void *)beginning,out);
 #endif
-    if (start == 0x80030000)
-      return beginning;
-    else
-      ll_add(jump_in+page,start,(void *)beginning);
+    ll_add(jump_in+page,start,(void *)beginning);
     return 0;
   }
   else if ((u_int)addr < 0x00200000 ||
@@ -10515,6 +10507,19 @@ int new_recompile_block(int addr)
     ds=1;
     pagespan_ds();
   }
+  u_int instr_addr0_override=0;
+
+#ifdef PCSX
+  if (start == 0x80030000) {
+    // nasty hack for fastbios thing
+    instr_addr0_override=(u_int)out;
+    emit_movimm(start,0);
+    emit_readword((int)&pcaddr,1);
+    emit_writeword(0,(int)&pcaddr);
+    emit_cmp(0,1);
+    emit_jne((int)new_dyna_leave);
+  }
+#endif
   for(i=0;i<slen;i++)
   {
     //if(ds) printf("ds: ");
@@ -10708,6 +10713,9 @@ int new_recompile_block(int addr)
     }
   }
 
+  if (instr_addr0_override)
+    instr_addr[0] = instr_addr0_override;
+
   /* Pass 9 - Linker */
   for(i=0;i<linkcount;i++)
   {