prog_print: Add support for printing the TXD opcode.

Reviewed-by: Brian Paul <brianp@vmware.com>
diff --git a/src/mesa/program/prog_print.c b/src/mesa/program/prog_print.c
index 484596a..7c3b490 100644
--- a/src/mesa/program/prog_print.c
+++ b/src/mesa/program/prog_print.c
@@ -647,6 +647,7 @@
    case OPCODE_TXP:
    case OPCODE_TXL:
    case OPCODE_TXB:
+   case OPCODE_TXD:
       fprintf(f, "%s", _mesa_opcode_string(inst->Opcode));
       if (inst->SaturateMode == SATURATE_ZERO_ONE)
          fprintf(f, "_SAT");
@@ -654,6 +655,12 @@
       fprint_dst_reg(f, &inst->DstReg, mode, prog);
       fprintf(f, ", ");
       fprint_src_reg(f, &inst->SrcReg[0], mode, prog);
+      if (inst->Opcode == OPCODE_TXD) {
+         fprintf(f, ", ");
+         fprint_src_reg(f, &inst->SrcReg[1], mode, prog);
+         fprintf(f, ", ");
+         fprint_src_reg(f, &inst->SrcReg[2], mode, prog);
+      }
       fprintf(f, ", texture[%d], ", inst->TexSrcUnit);
       switch (inst->TexSrcTarget) {
       case TEXTURE_1D_INDEX:   fprintf(f, "1D");    break;