From 81fdc5f8d2d681da8d255baf0713144f8656bac9 Mon Sep 17 00:00:00 2001 From: ths Date: Mon, 8 Oct 2007 13:04:02 +0000 Subject: The remainder of CRIS CPU emulation files, by Edgar E. Iglesias. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3361 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-cris/op_helper.c | 76 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 target-cris/op_helper.c (limited to 'target-cris/op_helper.c') diff --git a/target-cris/op_helper.c b/target-cris/op_helper.c new file mode 100644 index 0000000..f84ceb9 --- /dev/null +++ b/target-cris/op_helper.c @@ -0,0 +1,76 @@ +/* + * CRIS helper routines + * + * Copyright (c) 2007 AXIS Communications + * Written by Edgar E. Iglesias + * + * 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 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include +#include "exec.h" + +#define MMUSUFFIX _mmu +#define GETPC() (__builtin_return_address(0)) + +#define SHIFT 0 +#include "softmmu_template.h" + +#define SHIFT 1 +#include "softmmu_template.h" + +#define SHIFT 2 +#include "softmmu_template.h" + +#define SHIFT 3 +#include "softmmu_template.h" + +/* Try to fill the TLB and return an exception if error. If retaddr is + NULL, it means that the function was called in C code (i.e. not + from generated code or from helper.c) */ +/* XXX: fix it to restore all registers */ +void tlb_fill (target_ulong addr, int is_write, int is_user, void *retaddr) +{ + TranslationBlock *tb; + CPUState *saved_env; + target_phys_addr_t pc; + int ret; + + /* XXX: hack to restore env in all cases, even if not called from + generated code */ + saved_env = env; + env = cpu_single_env; + ret = cpu_cris_handle_mmu_fault(env, addr, is_write, is_user, 1); + if (__builtin_expect(ret, 0)) { + if (retaddr) { + /* now we have a real cpu fault */ + pc = (target_phys_addr_t)retaddr; + tb = tb_find_pc(pc); + if (tb) { + /* the PC is inside the translated code. It means that we have + a virtual CPU fault */ + cpu_restore_state(tb, env, pc, NULL); + } + } + cpu_loop_exit(); + } + env = saved_env; +} + +void do_unassigned_access(target_phys_addr_t addr, int is_write, int is_exec, + int is_asi) +{ + +} -- cgit v1.1