diff --git a/dlls/wined3d/arb_program_shader.c b/dlls/wined3d/arb_program_shader.c
index 9b4659ebdfb..2399c822d8b 100644
--- a/dlls/wined3d/arb_program_shader.c
+++ b/dlls/wined3d/arb_program_shader.c
@@ -5053,6 +5053,7 @@ static const SHADER_HANDLER shader_arb_instruction_handler_table[WINED3DSIH_TABL
     /* WINED3DSIH_ENDIF         */ shader_hw_endif,
     /* WINED3DSIH_ENDLOOP       */ shader_hw_endloop,
     /* WINED3DSIH_ENDREP        */ shader_hw_endrep,
+    /* WINED3DSIH_EQ            */ NULL,
     /* WINED3DSIH_EXP           */ shader_hw_scalar_op,
     /* WINED3DSIH_EXPP          */ shader_hw_scalar_op,
     /* WINED3DSIH_FRC           */ shader_hw_map2gl,
diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 1746cb44c64..3e5efadd9e1 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -5008,6 +5008,7 @@ static const SHADER_HANDLER shader_glsl_instruction_handler_table[WINED3DSIH_TAB
     /* WINED3DSIH_ENDIF         */ shader_glsl_end,
     /* WINED3DSIH_ENDLOOP       */ shader_glsl_end,
     /* WINED3DSIH_ENDREP        */ shader_glsl_end,
+    /* WINED3DSIH_EQ            */ NULL,
     /* WINED3DSIH_EXP           */ shader_glsl_map2gl,
     /* WINED3DSIH_EXPP          */ shader_glsl_expp,
     /* WINED3DSIH_FRC           */ shader_glsl_map2gl,
diff --git a/dlls/wined3d/shader.c b/dlls/wined3d/shader.c
index 447de8f8ca5..3386070290d 100644
--- a/dlls/wined3d/shader.c
+++ b/dlls/wined3d/shader.c
@@ -64,6 +64,7 @@ static const char * const shader_opcode_names[] =
     /* WINED3DSIH_ENDIF         */ "endif",
     /* WINED3DSIH_ENDLOOP       */ "endloop",
     /* WINED3DSIH_ENDREP        */ "endrep",
+    /* WINED3DSIH_EQ            */ "eq",
     /* WINED3DSIH_EXP           */ "exp",
     /* WINED3DSIH_EXPP          */ "expp",
     /* WINED3DSIH_FRC           */ "frc",
diff --git a/dlls/wined3d/shader_sm4.c b/dlls/wined3d/shader_sm4.c
index 0e81b4e2cd7..5739e1d8120 100644
--- a/dlls/wined3d/shader_sm4.c
+++ b/dlls/wined3d/shader_sm4.c
@@ -65,6 +65,7 @@ enum wined3d_sm4_opcode
     WINED3D_SM4_OP_EMIT         = 0x13,
     WINED3D_SM4_OP_ENDIF        = 0x15,
     WINED3D_SM4_OP_ENDLOOP      = 0x16,
+    WINED3D_SM4_OP_EQ           = 0x18,
     WINED3D_SM4_OP_EXP          = 0x19,
     WINED3D_SM4_OP_FRC          = 0x1a,
     WINED3D_SM4_OP_FTOI         = 0x1b,
@@ -148,6 +149,7 @@ static const struct wined3d_sm4_opcode_info opcode_table[] =
     {WINED3D_SM4_OP_EMIT,       WINED3DSIH_EMIT,        0,  0},
     {WINED3D_SM4_OP_ENDIF,      WINED3DSIH_ENDIF,       0,  0},
     {WINED3D_SM4_OP_ENDLOOP,    WINED3DSIH_ENDLOOP,     0,  0},
+    {WINED3D_SM4_OP_EQ,         WINED3DSIH_EQ,          1,  2},
     {WINED3D_SM4_OP_EXP,        WINED3DSIH_EXP,         1,  1},
     {WINED3D_SM4_OP_FRC,        WINED3DSIH_FRC,         1,  1},
     {WINED3D_SM4_OP_FTOI,       WINED3DSIH_FTOI,        1,  1},
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index cac3668b29e..5c4debc7a78 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -437,6 +437,7 @@ enum WINED3D_SHADER_INSTRUCTION_HANDLER
     WINED3DSIH_ENDIF,
     WINED3DSIH_ENDLOOP,
     WINED3DSIH_ENDREP,
+    WINED3DSIH_EQ,
     WINED3DSIH_EXP,
     WINED3DSIH_EXPP,
     WINED3DSIH_FRC,