diff --git a/dlls/d3dx9_36/asmparser.c b/dlls/d3dx9_36/asmparser.c
index 3c29da8faa4..0869ee68be6 100644
--- a/dlls/d3dx9_36/asmparser.c
+++ b/dlls/d3dx9_36/asmparser.c
@@ -133,9 +133,19 @@ static void asmparser_dcl_input(struct asm_parser *This, DWORD usage, DWORD num,
     }
 }
 
-static void asmparser_dcl_sampler(struct asm_parser *This, DWORD samptype, DWORD regnum, unsigned int line_no) {
+static void asmparser_dcl_sampler(struct asm_parser *This, DWORD samptype,
+                                  DWORD mod, DWORD regnum,
+                                  unsigned int line_no) {
     if(!This->shader) return;
-    if(!record_sampler(This->shader, samptype, regnum)) {
+    if(mod != 0 &&
+       (This->shader->version != BWRITERPS_VERSION(3, 0) ||
+        (mod != BWRITERSPDM_MSAMPCENTROID &&
+         mod != BWRITERSPDM_PARTIALPRECISION))) {
+        asmparser_message(This, "Line %u: Unsupported modifier in dcl instruction\n", This->line_no);
+        set_parse_status(This, PARSE_ERR);
+        return;
+    }
+    if(!record_sampler(This->shader, samptype, mod, regnum)) {
         ERR("Out of memory\n");
         set_parse_status(This, PARSE_ERR);
     }
diff --git a/dlls/d3dx9_36/asmshader.y b/dlls/d3dx9_36/asmshader.y
index c0c289caec5..9bd84a36351 100644
--- a/dlls/d3dx9_36/asmshader.y
+++ b/dlls/d3dx9_36/asmshader.y
@@ -573,19 +573,24 @@ instruction:          INSTR_ADD omods dreg ',' sregs
                                 reg.writemask = $5;
                                 asm_ctx.funcs->dcl_input(&asm_ctx, $2.dclusage, $2.regnum, $3.mod, &reg);
                             }
-                    | INSTR_DCL sampdcl REG_SAMPLER
+                    | INSTR_DCL sampdcl omods REG_SAMPLER
                             {
                                 TRACE("Sampler declared\n");
-                                asm_ctx.funcs->dcl_sampler(&asm_ctx, $2, $3, asm_ctx.line_no);
+                                if($3.shift != 0) {
+                                    asmparser_message(&asm_ctx, "Line %u: Shift modifier not allowed here\n",
+                                                      asm_ctx.line_no);
+                                    set_parse_status(&asm_ctx, PARSE_ERR);
+                                }
+                                asm_ctx.funcs->dcl_sampler(&asm_ctx, $2, $3.mod, $4, asm_ctx.line_no);
                             }
-                    | INSTR_DCL sampdcl REG_INPUT
+                    | INSTR_DCL sampdcl omods REG_INPUT
                             {
                                 TRACE("Error rule: sampler decl of input reg\n");
                                 asmparser_message(&asm_ctx, "Line %u: Sampler declarations of input regs is not valid\n",
                                                   asm_ctx.line_no);
                                 set_parse_status(&asm_ctx, PARSE_WARN);
                             }
-                    | INSTR_DCL sampdcl REG_OUTPUT
+                    | INSTR_DCL sampdcl omods REG_OUTPUT
                             {
                                 TRACE("Error rule: sampler decl of output reg\n");
                                 asmparser_message(&asm_ctx, "Line %u: Sampler declarations of output regs is not valid\n",
diff --git a/dlls/d3dx9_36/bytecodewriter.c b/dlls/d3dx9_36/bytecodewriter.c
index 3d05dadef40..84fefee6be1 100644
--- a/dlls/d3dx9_36/bytecodewriter.c
+++ b/dlls/d3dx9_36/bytecodewriter.c
@@ -257,7 +257,7 @@ BOOL record_declaration(struct bwriter_shader *shader, DWORD usage, DWORD usage_
     return TRUE;
 }
 
-BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype, DWORD regnum) {
+BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype, DWORD mod, DWORD regnum) {
     unsigned int i;
 
     if(!shader) return FALSE;
@@ -290,6 +290,7 @@ BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype, DWORD regnum)
     }
 
     shader->samplers[shader->num_samplers].type = samptype;
+    shader->samplers[shader->num_samplers].mod = mod;
     shader->samplers[shader->num_samplers].regnum = regnum;
     shader->num_samplers++;
     return TRUE;
@@ -1151,9 +1152,9 @@ static void write_samplers(const struct bwriter_shader *shader, struct bytecode_
     DWORD instr_dcl = D3DSIO_DCL | (2 << D3DSI_INSTLENGTH_SHIFT);
     DWORD token;
     const DWORD reg = (1<<31) |
-                      ((D3DSPR_SAMPLER << D3DSP_REGTYPE_SHIFT) & D3DSP_REGTYPE_MASK) |
-                      ((D3DSPR_SAMPLER << D3DSP_REGTYPE_SHIFT2) & D3DSP_REGTYPE_MASK2) |
-                      D3DSP_WRITEMASK_ALL;
+        ((D3DSPR_SAMPLER << D3DSP_REGTYPE_SHIFT) & D3DSP_REGTYPE_MASK) |
+        ((D3DSPR_SAMPLER << D3DSP_REGTYPE_SHIFT2) & D3DSP_REGTYPE_MASK2) |
+        D3DSP_WRITEMASK_ALL;
 
     for(i = 0; i < shader->num_samplers; i++) {
         /* Write the DCL instruction */
@@ -1162,7 +1163,9 @@ static void write_samplers(const struct bwriter_shader *shader, struct bytecode_
         /* Already shifted */
         token |= (d3d9_sampler(shader->samplers[i].type)) & D3DSP_TEXTURETYPE_MASK;
         put_dword(buffer, token);
-        put_dword(buffer, reg | (shader->samplers[i].regnum & D3DSP_REGNUM_MASK));
+        token = reg | (shader->samplers[i].regnum & D3DSP_REGNUM_MASK);
+        token |= d3d9_dstmod(shader->samplers[i].mod);
+        put_dword(buffer, token);
     }
 }
 
diff --git a/dlls/d3dx9_36/d3dx9_36_private.h b/dlls/d3dx9_36/d3dx9_36_private.h
index c1a4195f5cf..2daf1bef81a 100644
--- a/dlls/d3dx9_36/d3dx9_36_private.h
+++ b/dlls/d3dx9_36/d3dx9_36_private.h
@@ -191,6 +191,7 @@ struct declaration {
 struct samplerdecl {
     DWORD                   type;
     DWORD                   regnum;
+    DWORD                   mod;
 };
 
 #define INSTRARRAY_INITIAL_SIZE 8
@@ -272,8 +273,8 @@ struct asmparser_backend {
                        const struct shader_reg *reg);
     void (*dcl_input)(struct asm_parser *This, DWORD usage, DWORD num,
                       DWORD mod, const struct shader_reg *reg);
-    void (*dcl_sampler)(struct asm_parser *This, DWORD samptype, DWORD regnum,
-                        unsigned int line_no);
+    void (*dcl_sampler)(struct asm_parser *This, DWORD samptype, DWORD mod,
+                        DWORD regnum, unsigned int line_no);
 
     void (*end)(struct asm_parser *This);
 
@@ -288,7 +289,8 @@ BOOL add_constF(struct bwriter_shader *shader, DWORD reg, float x, float y, floa
 BOOL add_constI(struct bwriter_shader *shader, DWORD reg, INT x, INT y, INT z, INT w);
 BOOL add_constB(struct bwriter_shader *shader, DWORD reg, BOOL x);
 BOOL record_declaration(struct bwriter_shader *shader, DWORD usage, DWORD usage_idx, DWORD mod, BOOL output, DWORD regnum, DWORD writemask);
-BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype, DWORD regnum);
+BOOL record_sampler(struct bwriter_shader *shader, DWORD samptype,
+                    DWORD mod, DWORD regnum);
 
 #define MESSAGEBUFFER_INITIAL_SIZE 256
 
diff --git a/dlls/d3dx9_36/tests/asm.c b/dlls/d3dx9_36/tests/asm.c
index 59ed942a882..cc0b6ae0efe 100644
--- a/dlls/d3dx9_36/tests/asm.c
+++ b/dlls/d3dx9_36/tests/asm.c
@@ -1185,6 +1185,16 @@ static void ps_3_0_test(void) {
             "dcl_texcoord0_centroid v0\n",
             {0xffff0300, 0x0200001f, 0x80000005, 0x904f0000, 0x0000ffff}
         },
+        {   /* shader 13 */
+            "ps_3_0\n"
+            "dcl_2d_centroid s0\n",
+            {0xffff0300, 0x0200001f, 0x90000000, 0xa04f0800, 0x0000ffff}
+        },
+        {   /* shader 14 */
+            "ps_3_0\n"
+            "dcl_2d_pp s0\n",
+            {0xffff0300, 0x0200001f, 0x90000000, 0xa02f0800, 0x0000ffff}
+        },
     };
 
     exec_tests("ps_3_0", tests, sizeof(tests) / sizeof(tests[0]));
@@ -1323,6 +1333,9 @@ static void failure_test(void) {
         /* shader 41: no modifier allowed with dcl instruction in vs */
         "vs_3_0\n"
         "dcl_texcoord0_centroid v0\n",
+        /* shader 42: no modifiers with vs dcl sampler instruction */
+        "vs_3_0\n"
+        "dcl_2d_pp s0\n",
     };
     HRESULT hr;
     unsigned int i;