+/**
+ * The NV_vertex_program spec mandates that all registers be
+ * initialized to zero. We do this here unconditionally.
+ *
+ * \note We rely on dead-code elimination in the compiler.
+ */
+static void initialize_NV_registers(struct radeon_compiler * compiler)
+{
+ unsigned int reg;
+ struct rc_instruction * inst;
+
+ for(reg = 0; reg < 12; ++reg) {
+ inst = rc_insert_new_instruction(compiler, &compiler->Program.Instructions);
+ inst->U.I.Opcode = RC_OPCODE_MOV;
+ inst->U.I.DstReg.File = RC_FILE_TEMPORARY;
+ inst->U.I.DstReg.Index = reg;
+ inst->U.I.SrcReg[0].File = RC_FILE_NONE;
+ inst->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_0000;
+ }
+
+ inst = rc_insert_new_instruction(compiler, &compiler->Program.Instructions);
+ inst->U.I.Opcode = RC_OPCODE_ARL;
+ inst->U.I.DstReg.File = RC_FILE_ADDRESS;
+ inst->U.I.DstReg.Index = 0;
+ inst->U.I.DstReg.WriteMask = WRITEMASK_X;
+ inst->U.I.SrcReg[0].File = RC_FILE_NONE;
+ inst->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_0000;
+}