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=708c8aea59bccb70736b5ddd9e65531cdeffbe24;hp=45edd6553740563c5e4e5830f7b4ac113d49cfd4;hb=397614d0d77c7b99f6ecc6d938a36d8df66dcb18;hpb=4d6467383217647e3fbc58ab9213a31c0f3bd8c9

diff --git a/libpcsxcore/new_dynarec/assem_arm.c b/libpcsxcore/new_dynarec/assem_arm.c
index 45edd655..708c8aea 100644
--- a/libpcsxcore/new_dynarec/assem_arm.c
+++ b/libpcsxcore/new_dynarec/assem_arm.c
@@ -1167,18 +1167,30 @@ void emit_addimm(u_int rs,int imm,u_int rt)
     }else if(genimm(-imm,&armval)) {
       assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rs],-imm);
       output_w32(0xe2400000|rd_rn_rm(rt,rs,0)|armval);
-    }else if(imm<0) {
-      assert(imm>-65536);
+    #ifdef HAVE_ARMV7
+    }else if(rt!=rs&&(u_int)imm<65536) {
+      emit_movw(imm&0x0000ffff,rt);
+      emit_add(rs,rt,rt);
+    }else if(rt!=rs&&(u_int)-imm<65536) {
+      emit_movw(-imm&0x0000ffff,rt);
+      emit_sub(rs,rt,rt);
+    #endif
+    }else if((u_int)-imm<65536) {
       assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rs],(-imm)&0xFF00);
       assem_debug("sub %s,%s,#%d\n",regname[rt],regname[rt],(-imm)&0xFF);
       output_w32(0xe2400000|rd_rn_imm_shift(rt,rs,(-imm)>>8,8));
       output_w32(0xe2400000|rd_rn_imm_shift(rt,rt,(-imm)&0xff,0));
-    }else{
-      assert(imm<65536);
-      assem_debug("add %s,%s,#%d\n",regname[rt],regname[rs],imm&0xFF00);
-      assem_debug("add %s,%s,#%d\n",regname[rt],regname[rt],imm&0xFF);
-      output_w32(0xe2800000|rd_rn_imm_shift(rt,rs,imm>>8,8));
-      output_w32(0xe2800000|rd_rn_imm_shift(rt,rt,imm&0xff,0));
+    }else {
+      do {
+        int shift = (ffs(imm) - 1) & ~1;
+        int imm8 = imm & (0xff << shift);
+        genimm_checked(imm8,&armval);
+        assem_debug("add %s,%s,#0x%x\n",regname[rt],regname[rs],imm8);
+        output_w32(0xe2800000|rd_rn_rm(rt,rs,0)|armval);
+        rs = rt;
+        imm &= ~imm8;
+      }
+      while (imm != 0);
     }
   }
   else if(rs!=rt) emit_mov(rs,rt);
@@ -1285,7 +1297,7 @@ void emit_andimm(int rs,int imm,int rt)
     assem_debug("bic %s,%s,#%d\n",regname[rt],regname[rs],imm);
     output_w32(0xe3c00000|rd_rn_rm(rt,rs,0)|armval);
   }else if(imm==65535) {
-    #ifndef HAVE_ARMV7
+    #ifndef HAVE_ARMV6
     assem_debug("bic %s,%s,#FF000000\n",regname[rt],regname[rs]);
     output_w32(0xe3c00000|rd_rn_rm(rt,rs,0)|0x4FF);
     assem_debug("bic %s,%s,#00FF0000\n",regname[rt],regname[rt]);
@@ -1418,7 +1430,7 @@ void emit_shrdimm(int rs,int rs2,u_int imm,int rt)
 
 void emit_signextend16(int rs,int rt)
 {
-  #ifndef HAVE_ARMV7
+  #ifndef HAVE_ARMV6
   emit_shlimm(rs,16,rt);
   emit_sarimm(rt,16,rt);
   #else
@@ -1429,7 +1441,7 @@ void emit_signextend16(int rs,int rt)
 
 void emit_signextend8(int rs,int rt)
 {
-  #ifndef HAVE_ARMV7
+  #ifndef HAVE_ARMV6
   emit_shlimm(rs,24,rt);
   emit_sarimm(rt,24,rt);
   #else
@@ -3999,10 +4011,16 @@ static int emit_fastpath_cmp_jump(int i,int addr,int *addr_reg_override)
     type=0;
   }
   else if(type==MTYPE_1F80) { // scratchpad
-    emit_addimm(addr,-0x1f800000,HOST_TEMPREG);
-    emit_cmpimm(HOST_TEMPREG,0x1000);
-    jaddr=(int)out;
-    emit_jc(0);
+    if (psxH == (void *)0x1f800000) {
+      emit_addimm(addr,-0x1f800000,HOST_TEMPREG);
+      emit_cmpimm(HOST_TEMPREG,0x1000);
+      jaddr=(int)out;
+      emit_jc(0);
+    }
+    else {
+      // do usual RAM check, jump will go to the right handler
+      type=0;
+    }
   }
 #endif