diff --git a/spirv/emit_post_op.pas b/spirv/emit_post_op.pas
index d18ef686..c4d26709 100644
--- a/spirv/emit_post_op.pas
+++ b/spirv/emit_post_op.pas
@@ -50,6 +50,7 @@ type
   function  OnBranchConditional1(node:PSpirvOp):Integer;
   //
   function  OpBitCount1(node:PSpirvOp):Integer;
+  function  OpBitReverse1(node:PSpirvOp):Integer;
   //
   function  OnSelect1(node:PSpirvOp):Integer;
   //
@@ -106,6 +107,7 @@ begin
   Op.OpBranchConditional:Result:=OnBranchConditional1(node);
 
   Op.OpBitCount         :Result:=OpBitCount1(node);
+  Op.OpBitReverse       :Result:=OpBitReverse1(node);
 
   else;
  end;
@@ -815,6 +817,51 @@ begin
 
 end;
 
+Function ReverseBits(src:QWORD;count:Byte):QWORD;
+var
+ i:Byte;
+begin
+ Result:=0;
+ Assert(count<>0);
+ dec(count);
+ For i:=0 to count do
+ begin
+  Result.Bits[i]:=src.Bits[count-i];
+ end;
+end;
+
+function TEmitPostOp.OpBitReverse1(node:PSpirvOp):Integer;
+var
+ dst,src:PsrRegNode;
+ data:QWORD;
+
+ procedure _SetConst(dtype:TsrDataType;value:QWORD);
+ begin
+  dst^.pWriter:=ConstList.Fetch(dtype,value);
+  node^.mark_not_used;
+  node^.pDst:=nil;
+  Inc(Result);
+ end;
+
+begin
+ Result:=0;
+ dst:=node^.pDst^.AsType(ntReg);
+ src:=RegDown(node^.ParamNode(0)^.AsReg);
+
+ if (dst=nil) or (src=nil) then Exit;
+
+ if src^.is_const then
+ begin
+  //need a const calc
+  data:=src^.AsConst^.GetData;
+
+  data:=ReverseBits(data,src^.dtype.BitSize);
+
+  _SetConst(dst^.dtype,data);
+  Exit;
+ end;
+
+end;
 
 function try_get_comp_bridge(var src:PsrRegNode):Integer; forward;
 
@@ -1876,12 +1923,6 @@ begin
 
   if (data[0]=data[1]) then
   begin
-
-   if (index<>0) then
-   begin
-    Assert(false,'TODO');
-   end;
-
    node^.mark_not_used;
    node^.pDst:=nil;
 
diff --git a/spirv/emit_sop1.pas b/spirv/emit_sop1.pas
index f647c83f..4d636f57 100644
--- a/spirv/emit_sop1.pas
+++ b/spirv/emit_sop1.pas
@@ -7,6 +7,7 @@ interface
 uses
   sysutils,
   ps4_pssl,
+  spirv,
   srCFGLabel,
   srFlow,
   srType,
@@ -29,7 +30,10 @@ type
   procedure emit_S_SETPC_B64;
   procedure emit_S_SWAPPC_B64;
   procedure emit_S_AND_SAVEEXEC_B64;
+  procedure emit_S_WQM_B32;
   procedure emit_S_WQM_B64;
+  procedure emit_S_BREV_B32;
+  procedure emit_S_BREV_B64;
  end;
 
 implementation
@@ -74,6 +78,7 @@ Var
 begin
  dst:=get_sdst7(FSPI.SOP1.SDST);
  src:=fetch_ssrc9(FSPI.SOP1.SSRC,dtUnknow);
+
  MakeCopy(dst,src);
 end;
 
@@ -82,11 +87,9 @@ Var
  dst:array[0..1] of PsrRegSlot;
  src:array[0..1] of PsrRegNode;
 begin
- dst[0]:=get_sdst7(FSPI.SOP1.SDST+0);
- dst[1]:=get_sdst7(FSPI.SOP1.SDST+1);
+ if not get_sdst7_pair(FSPI.SOP1.SDST,@dst) then Assert(false);
 
- src[0]:=fetch_ssrc9(FSPI.SOP1.SSRC+0,dtUnknow);
- src[1]:=fetch_ssrc9(FSPI.SOP1.SSRC+1,dtUnknow);
+ if not fetch_ssrc9_pair(FSPI.SOP1.SSRC,@src,dtUnknow) then Assert(false);
 
  MakeCopy(dst[0],src[0]);
  MakeCopy(dst[1],src[1]);
@@ -104,7 +107,6 @@ Var
  src:PsrRegNode;
 begin
  dst:=get_sdst7(FSPI.SOP1.SDST);
-
  src:=fetch_ssrc9(FSPI.SOP1.SSRC,dtUnknow);
 
  OpNot(dst,src);
@@ -119,11 +121,9 @@ Var
  dst:array[0..1] of PsrRegSlot;
  src:array[0..1] of PsrRegNode;
 begin
- dst[0]:=get_sdst7(FSPI.SOP1.SDST+0);
- dst[1]:=get_sdst7(FSPI.SOP1.SDST+1);
+ if not get_sdst7_pair(FSPI.SOP1.SDST,@dst) then Assert(false);
 
- src[0]:=fetch_ssrc9(FSPI.SOP1.SSRC+0,dtUnknow);
- src[1]:=fetch_ssrc9(FSPI.SOP1.SSRC+1,dtUnknow);
+ if not fetch_ssrc9_pair(FSPI.SOP1.SSRC,@src,dtUnknow) then Assert(false);
 
  OpNot(dst[0],src[0]);
  OpNot(dst[1],src[1]);
@@ -208,6 +208,17 @@ begin
  //SCC = (sdst != 0)    SCC = ((exc[0] != 0) or ((exc[1] != 0))
 end;
 
+procedure TEmit_SOP1.emit_S_WQM_B32;
+Var
+ dst:PsrRegSlot;
+ src:PsrRegNode;
+begin
+ dst:=get_sdst7(FSPI.SOP1.SDST);
+ src:=fetch_ssrc9(FSPI.SOP1.SSRC,dtUnknow);
+
+ OpWQM32(dst,src);
+end;
+
 procedure TEmit_SOP1.emit_S_WQM_B64;
 Var
  dst:array[0..1] of PsrRegSlot;
@@ -228,6 +239,30 @@ begin
  OpWQM32(dst[1],src[1]);
 end;
 
+procedure TEmit_SOP1.emit_S_BREV_B32; //sdst[31:0] = ssrc[0:31]
+Var
+ dst:PsrRegSlot;
+ src:PsrRegNode;
+begin
+ dst:=get_sdst7(FSPI.SOP1.SDST);
+ src:=fetch_ssrc9(FSPI.SOP1.SSRC,dtUInt32);
+
+ Op1(Op.OpBitReverse,dtUInt32,dst,src);
+end;
+
+procedure TEmit_SOP1.emit_S_BREV_B64; //sdst[63:0] = ssrc[0:63]
+Var
+ dst:array[0..1] of PsrRegSlot;
+ src:array[0..1] of PsrRegNode;
+begin
+ if not get_sdst7_pair(FSPI.SOP1.SDST,@dst) then Assert(false);
+
+ if not fetch_ssrc9_pair(FSPI.SOP1.SSRC,@src,dtUnknow) then Assert(false);
+
+ Op1(Op.OpBitReverse,dtUInt32,dst[0],src[1]); //0 -> 1
+ Op1(Op.OpBitReverse,dtUInt32,dst[1],src[0]); //1 -> 0
+end;
+
 procedure TEmit_SOP1.emit_SOP1;
 begin
 
@@ -238,8 +273,12 @@ begin
   S_NOT_B32         : emit_S_NOT_B32;
   S_NOT_B64         : emit_S_NOT_B64;
 
+  S_WQM_B32         : emit_S_WQM_B32;
   S_WQM_B64         : emit_S_WQM_B64;
 
+  S_BREV_B32        : emit_S_BREV_B32;
+  S_BREV_B64        : emit_S_BREV_B64;
+
   S_GETPC_B64       : emit_S_GETPC_B64;
   S_SETPC_B64       : emit_S_SETPC_B64;
   S_SWAPPC_B64      : emit_S_SWAPPC_B64;