drc: only override default cycle_multiplier

[pcsx_rearmed.git] / libpcsxcore / new_dynarec / new_dynarec.c

diff --git a/libpcsxcore/new_dynarec/new_dynarec.c b/libpcsxcore/new_dynarec/new_dynarec.c
index 7e9fa1e..f6ea299 100644 (file)
--- a/libpcsxcore/new_dynarec/new_dynarec.c
+++ b/libpcsxcore/new_dynarec/new_dynarec.c
@@ -225,6 +225,7 @@ static struct decoded_insn
   static void *copy;
   static int expirep;
   static u_int stop_after_jal;
+  static u_int f1_hack; // 0 - off, ~0 - capture address, else addr
 #ifndef RAM_FIXED
   static uintptr_t ram_offset;
 #else
@@ -464,13 +465,13 @@ static void do_clear_cache(void)
 
 #define NO_CYCLE_PENALTY_THR 12
 
-int cycle_multiplier; // 100 for 1.0
+int cycle_multiplier = CYCLE_MULT_DEFAULT; // 100 for 1.0
 int cycle_multiplier_override;
 int cycle_multiplier_old;
 
 static int CLOCK_ADJUST(int x)
 {
-  int m = cycle_multiplier_override
+  int m = cycle_multiplier_override && cycle_multiplier == CYCLE_MULT_DEFAULT
         ? cycle_multiplier_override : cycle_multiplier;
   int s=(x>>31)|1;
   return (x * m + s * 50) / 100;
@@ -6700,6 +6701,7 @@ void new_dynarec_clear_full(void)
   literalcount=0;
   stop_after_jal=0;
   inv_code_start=inv_code_end=~0;
+  f1_hack=0;
   // TLB
   for(n=0;n<4096;n++) ll_clear(jump_in+n);
   for(n=0;n<4096;n++) ll_clear(jump_out+n);
@@ -6945,6 +6947,27 @@ int new_recompile_block(u_int addr)
     ll_add_flags(jump_in+page,start,state_rflags,(void *)beginning);
     return 0;
   }
+  else if (f1_hack == ~0u || (f1_hack != 0 && start == f1_hack)) {
+    void *beginning = start_block();
+    u_int page = get_page(start);
+    emit_readword(&psxRegs.GPR.n.sp, 0);
+    emit_readptr(&mem_rtab, 1);
+    emit_shrimm(0, 12, 2);
+    emit_readptr_dualindexedx_ptrlen(1, 2, 1);
+    emit_addimm(0, 0x18, 0);
+    emit_adds_ptr(1, 1, 1);
+    emit_ldr_dualindexed(1, 0, 0);
+    emit_writeword(0, &psxRegs.GPR.r[26]); // lw k0, 0x18(sp)
+    emit_far_call(get_addr_ht);
+    emit_jmpreg(0); // jr k0
+    literal_pool(0);
+    end_block(beginning);
+
+    ll_add_flags(jump_in + page, start, state_rflags, beginning);
+    SysPrintf("F1 hack to   %08x\n", start);
+    f1_hack = start;
+    return 0;
+  }
 
   source = get_source_start(start, &pagelimit);
   if (source == NULL) {
@@ -7465,6 +7488,23 @@ int new_recompile_block(u_int addr)
   }
   assert(slen>0);
 
+  /* spacial hack(s) */
+  if (i > 10 && source[i-1] == 0 && source[i-2] == 0x03e00008
+      && source[i-4] == 0x8fbf0018 && source[i-6] == 0x00c0f809
+      && dops[i-7].itype == STORE)
+  {
+    i = i-8;
+    if (dops[i].itype == IMM16)
+      i--;
+    // swl r2, 15(r6); swr r2, 12(r6); sw r6, *; jalr r6
+    if (dops[i].itype == STORELR && dops[i].rs1 == 6
+      && dops[i-1].itype == STORELR && dops[i-1].rs1 == 6)
+    {
+      SysPrintf("F1 hack from %08x\n", start);
+      f1_hack = ~0u;
+    }
+  }
+
   /* Pass 2 - Register dependencies and branch targets */
 
   unneeded_registers(0,slen-1,0);