X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fnew_dynarec%2Fassem_arm.c;h=33ecf8e10d7fdc01e793d0d120d87d248ede7162;hp=dd4b070fc9226ac1c4382a460003d26311ffda40;hb=76f71c2748608a51e1f9a49273eb3ff58e715700;hpb=0c1fe38bf0d4077fb38ee1d1f42ec819b17a0be0

diff --git a/libpcsxcore/new_dynarec/assem_arm.c b/libpcsxcore/new_dynarec/assem_arm.c
index dd4b070f..33ecf8e1 100644
--- a/libpcsxcore/new_dynarec/assem_arm.c
+++ b/libpcsxcore/new_dynarec/assem_arm.c
@@ -186,11 +186,15 @@ void *kill_pointer(void *stub)
   return i_ptr;
 }
 
+// find where external branch is liked to using addr of it's stub:
+// get address that insn one after stub loads (dyna_linker arg1),
+// treat it as a pointer to branch insn,
+// return addr where that branch jumps to
 int get_pointer(void *stub)
 {
   //printf("get_pointer(%x)\n",(int)stub);
   int *ptr=(int *)(stub+4);
-  assert((*ptr&0x0ff00000)==0x05900000);
+  assert((*ptr&0x0fff0000)==0x059f0000);
   u_int offset=*ptr&0xfff;
   int **l_ptr=(void *)ptr+offset+8;
   int *i_ptr=*l_ptr;
@@ -762,15 +766,20 @@ void alloc_reg_temp(struct regstat *cur,int i,signed char reg)
 void alloc_arm_reg(struct regstat *cur,int i,signed char reg,char hr)
 {
   int n;
+  int dirty=0;
   
   // see if it's already allocated (and dealloc it)
   for(n=0;n<HOST_REGS;n++)
   {
-    if(n!=EXCLUDE_REG&&cur->regmap[n]==reg) {cur->regmap[n]=-1;}
+    if(n!=EXCLUDE_REG&&cur->regmap[n]==reg) {
+      dirty=(cur->dirty>>n)&1;
+      cur->regmap[n]=-1;
+    }
   }
   
   cur->regmap[hr]=reg;
   cur->dirty&=~(1<<hr);
+  cur->dirty|=dirty<<hr;
   cur->isconst&=~(1<<hr);
 }
 
@@ -1052,7 +1061,7 @@ void emit_test(int rs, int rt)
 void emit_testimm(int rs,int imm)
 {
   u_int armval;
-  assem_debug("tst %s,$%d\n",regname[rs],imm);
+  assem_debug("tst %s,#%d\n",regname[rs],imm);
   genimm_checked(imm,&armval);
   output_w32(0xe3100000|rd_rn_rm(0,rs,0)|armval);
 }
@@ -1445,10 +1454,10 @@ void emit_cmpimm(int rs,int imm)
 {
   u_int armval;
   if(genimm(imm,&armval)) {
-    assem_debug("cmp %s,$%d\n",regname[rs],imm);
+    assem_debug("cmp %s,#%d\n",regname[rs],imm);
     output_w32(0xe3500000|rd_rn_rm(0,rs,0)|armval);
   }else if(genimm(-imm,&armval)) {
-    assem_debug("cmn %s,$%d\n",regname[rs],imm);
+    assem_debug("cmn %s,#%d\n",regname[rs],imm);
     output_w32(0xe3700000|rd_rn_rm(0,rs,0)|armval);
   }else if(imm>0) {
     assert(imm<65536);
@@ -3413,6 +3422,7 @@ void loadlr_assemble_arm(int i,struct regstat *i_regs)
     }
     map=get_reg(i_regs->regmap,TLREG);
     assert(map>=0);
+    reglist&=~(1<<map);
     map=do_tlb_r(addr,temp2,map,0,a,c?-1:temp,c,constmap[i][s]+offset);
     if(c) {
       if (opcode[i]==0x22||opcode[i]==0x26) {
@@ -4487,7 +4497,9 @@ void multdiv_assemble_arm(int i,struct regstat *i_regs)
         assert(quotient>=0);
         assert(remainder>=0);
         emit_movs(d1,remainder);
-        emit_negmi(remainder,remainder);
+        emit_movimm(0xffffffff,quotient);
+        emit_negmi(quotient,quotient); // .. quotient and ..
+        emit_negmi(remainder,remainder); // .. remainder for div0 case (will be negated back after jump)
         emit_movs(d2,HOST_TEMPREG);
         emit_jeq((int)out+52); // Division by zero
         emit_negmi(HOST_TEMPREG,HOST_TEMPREG);
@@ -4515,12 +4527,13 @@ void multdiv_assemble_arm(int i,struct regstat *i_regs)
         signed char remainder=get_reg(i_regs->regmap,HIREG);
         assert(quotient>=0);
         assert(remainder>=0);
+        emit_mov(d1,remainder);
+        emit_movimm(0xffffffff,quotient); // div0 case
         emit_test(d2,d2);
-        emit_jeq((int)out+44); // Division by zero
+        emit_jeq((int)out+40); // Division by zero
         emit_clz(d2,HOST_TEMPREG);
         emit_movimm(1<<31,quotient);
         emit_shl(d2,HOST_TEMPREG,d2);
-        emit_mov(d1,remainder);
         emit_shr(quotient,HOST_TEMPREG,quotient);
         emit_cmp(remainder,d2);
         emit_subcs(remainder,d2,remainder);
@@ -4797,7 +4810,7 @@ void wb_valid(signed char pre[],signed char entry[],u_int dirty_pre,u_int dirty,
     if(hr!=EXCLUDE_REG) {
       reg=pre[hr];
       if(((~u)>>(reg&63))&1) {
-        if(reg==entry[hr]||(reg>0&&entry[hr]<0)) {
+        if(reg>0) {
           if(((dirty_pre&~dirty)>>hr)&1) {
             if(reg>0&&reg<34) {
               emit_storereg(reg,hr);
@@ -4811,21 +4824,6 @@ void wb_valid(signed char pre[],signed char entry[],u_int dirty_pre,u_int dirty,
             }
           }
         }
-        else // Check if register moved to a different register
-        if((new_hr=get_reg(entry,reg))>=0) {
-          if((dirty_pre>>hr)&(~dirty>>new_hr)&1) {
-            if(reg>0&&reg<34) {
-              emit_storereg(reg,hr);
-              if( ((is32_pre&~uu)>>reg)&1 ) {
-                emit_sarimm(hr,31,HOST_TEMPREG);
-                emit_storereg(reg|64,HOST_TEMPREG);
-              }
-            }
-            else if(reg>=64) {
-              emit_storereg(reg,hr);
-            }
-          }
-        }
       }
     }
   }