1 files changed, 0 insertions, 119 deletions
diff --git a/target/nios2/op_helper.c b/target/nios2/op_helper.c
deleted file mode 100644
index 5017457c5e..0000000000
--- a/target/nios2/op_helper.c
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Altera Nios II helper routines.
- *
- * Copyright (C) 2012 Chris Wulff <crwulff@gmail.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see
- * <http://www.gnu.org/licenses/lgpl-2.1.html>
- */
-
-#include "qemu/osdep.h"
-#include "cpu.h"
-#include "exec/helper-proto.h"
-#include "exec/exec-all.h"
-
-void helper_raise_exception(CPUNios2State *env, uint32_t index)
-{
-    CPUState *cs = env_cpu(env);
-    cs->exception_index = index;
-    cpu_loop_exit(cs);
-}
-
-void nios2_cpu_loop_exit_advance(CPUNios2State *env, uintptr_t retaddr)
-{
-    CPUState *cs = env_cpu(env);
-
-    /*
-     * Note that PC is advanced for all hardware exceptions.
-     * Do this here, rather than in restore_state_to_opc(),
-     * lest we affect QEMU internal exceptions, like EXCP_DEBUG.
-     */
-    cpu_restore_state(cs, retaddr);
-    env->pc += 4;
-    cpu_loop_exit(cs);
-}
-
-static void maybe_raise_div(CPUNios2State *env, uintptr_t ra)
-{
-    Nios2CPU *cpu = env_archcpu(env);
-    CPUState *cs = env_cpu(env);
-
-    if (cpu->diverr_present) {
-        cs->exception_index = EXCP_DIV;
-        nios2_cpu_loop_exit_advance(env, ra);
-    }
-}
-
-int32_t helper_divs(CPUNios2State *env, int32_t num, int32_t den)
-{
-    if (unlikely(den == 0) || unlikely(den == -1 && num == INT32_MIN)) {
-        maybe_raise_div(env, GETPC());
-        return num; /* undefined */
-    }
-    return num / den;
-}
-
-uint32_t helper_divu(CPUNios2State *env, uint32_t num, uint32_t den)
-{
-    if (unlikely(den == 0)) {
-        maybe_raise_div(env, GETPC());
-        return num; /* undefined */
-    }
-    return num / den;
-}
-
-#ifndef CONFIG_USER_ONLY
-void helper_eret(CPUNios2State *env, uint32_t new_status, uint32_t new_pc)
-{
-    Nios2CPU *cpu = env_archcpu(env);
-    CPUState *cs = env_cpu(env);
-
-    if (unlikely(new_pc & 3)) {
-        env->ctrl[CR_BADADDR] = new_pc;
-        cs->exception_index = EXCP_UNALIGND;
-        nios2_cpu_loop_exit_advance(env, GETPC());
-    }
-
-    /*
-     * None of estatus, bstatus, or sstatus have constraints on write;
-     * do not allow reserved fields in status to be set.
-     * When shadow registers are enabled, eret *does* restore CRS.
-     * Rather than testing eic_present to decide, mask CRS out of
-     * the set of readonly fields.
-     */
-    new_status &= cpu->cr_state[CR_STATUS].writable |
-                  (cpu->cr_state[CR_STATUS].readonly & R_CR_STATUS_CRS_MASK);
-
-    env->ctrl[CR_STATUS] = new_status;
-    env->pc = new_pc;
-    nios2_update_crs(env);
-    cpu_loop_exit(cs);
-}
-
-/*
- * RDPRS and WRPRS are implemented out of line so that if PRS == CRS,
- * all of the tcg global temporaries are synced back to ENV.
- */
-uint32_t helper_rdprs(CPUNios2State *env, uint32_t regno)
-{
-    unsigned prs = FIELD_EX32(env->ctrl[CR_STATUS], CR_STATUS, PRS);
-    return env->shadow_regs[prs][regno];
-}
-
-void helper_wrprs(CPUNios2State *env, uint32_t regno, uint32_t val)
-{
-    unsigned prs = FIELD_EX32(env->ctrl[CR_STATUS], CR_STATUS, PRS);
-    env->shadow_regs[prs][regno] = val;
-}
-#endif /* !CONFIG_USER_ONLY */