diff options
author | Thomas Huth <thuth@redhat.com> | 2016-10-11 08:56:52 +0200 |
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committer | Thomas Huth <thuth@redhat.com> | 2016-12-20 21:52:12 +0100 |
commit | fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch) | |
tree | 2b450d96b01455df8ed908bf8f26ddc388a03380 /target-sparc/helper.c | |
parent | 82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff) |
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.
Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [crisµblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target-sparc/helper.c')
-rw-r--r-- | target-sparc/helper.c | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/target-sparc/helper.c b/target-sparc/helper.c deleted file mode 100644 index 359b0b15ed..0000000000 --- a/target-sparc/helper.c +++ /dev/null @@ -1,257 +0,0 @@ -/* - * Misc Sparc helpers - * - * Copyright (c) 2003-2005 Fabrice Bellard - * - * 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, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/exec-all.h" -#include "qemu/host-utils.h" -#include "exec/helper-proto.h" -#include "sysemu/sysemu.h" - -void cpu_raise_exception_ra(CPUSPARCState *env, int tt, uintptr_t ra) -{ - CPUState *cs = CPU(sparc_env_get_cpu(env)); - - cs->exception_index = tt; - cpu_loop_exit_restore(cs, ra); -} - -void helper_raise_exception(CPUSPARCState *env, int tt) -{ - CPUState *cs = CPU(sparc_env_get_cpu(env)); - - cs->exception_index = tt; - cpu_loop_exit(cs); -} - -void helper_debug(CPUSPARCState *env) -{ - CPUState *cs = CPU(sparc_env_get_cpu(env)); - - cs->exception_index = EXCP_DEBUG; - cpu_loop_exit(cs); -} - -#ifdef TARGET_SPARC64 -target_ulong helper_popc(target_ulong val) -{ - return ctpop64(val); -} - -void helper_tick_set_count(void *opaque, uint64_t count) -{ -#if !defined(CONFIG_USER_ONLY) - cpu_tick_set_count(opaque, count); -#endif -} - -uint64_t helper_tick_get_count(CPUSPARCState *env, void *opaque, int mem_idx) -{ -#if !defined(CONFIG_USER_ONLY) - CPUTimer *timer = opaque; - - if (timer->npt && mem_idx < MMU_KERNEL_IDX) { - cpu_raise_exception_ra(env, TT_PRIV_INSN, GETPC()); - } - - return cpu_tick_get_count(timer); -#else - return 0; -#endif -} - -void helper_tick_set_limit(void *opaque, uint64_t limit) -{ -#if !defined(CONFIG_USER_ONLY) - cpu_tick_set_limit(opaque, limit); -#endif -} -#endif - -static target_ulong do_udiv(CPUSPARCState *env, target_ulong a, - target_ulong b, int cc, uintptr_t ra) -{ - int overflow = 0; - uint64_t x0; - uint32_t x1; - - x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32); - x1 = (b & 0xffffffff); - - if (x1 == 0) { - cpu_raise_exception_ra(env, TT_DIV_ZERO, ra); - } - - x0 = x0 / x1; - if (x0 > UINT32_MAX) { - x0 = UINT32_MAX; - overflow = 1; - } - - if (cc) { - env->cc_dst = x0; - env->cc_src2 = overflow; - env->cc_op = CC_OP_DIV; - } - return x0; -} - -target_ulong helper_udiv(CPUSPARCState *env, target_ulong a, target_ulong b) -{ - return do_udiv(env, a, b, 0, GETPC()); -} - -target_ulong helper_udiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b) -{ - return do_udiv(env, a, b, 1, GETPC()); -} - -static target_ulong do_sdiv(CPUSPARCState *env, target_ulong a, - target_ulong b, int cc, uintptr_t ra) -{ - int overflow = 0; - int64_t x0; - int32_t x1; - - x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32); - x1 = (b & 0xffffffff); - - if (x1 == 0) { - cpu_raise_exception_ra(env, TT_DIV_ZERO, ra); - } else if (x1 == -1 && x0 == INT64_MIN) { - x0 = INT32_MAX; - overflow = 1; - } else { - x0 = x0 / x1; - if ((int32_t) x0 != x0) { - x0 = x0 < 0 ? INT32_MIN : INT32_MAX; - overflow = 1; - } - } - - if (cc) { - env->cc_dst = x0; - env->cc_src2 = overflow; - env->cc_op = CC_OP_DIV; - } - return x0; -} - -target_ulong helper_sdiv(CPUSPARCState *env, target_ulong a, target_ulong b) -{ - return do_sdiv(env, a, b, 0, GETPC()); -} - -target_ulong helper_sdiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b) -{ - return do_sdiv(env, a, b, 1, GETPC()); -} - -#ifdef TARGET_SPARC64 -int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b) -{ - if (b == 0) { - /* Raise divide by zero trap. */ - cpu_raise_exception_ra(env, TT_DIV_ZERO, GETPC()); - } else if (b == -1) { - /* Avoid overflow trap with i386 divide insn. */ - return -a; - } else { - return a / b; - } -} - -uint64_t helper_udivx(CPUSPARCState *env, uint64_t a, uint64_t b) -{ - if (b == 0) { - /* Raise divide by zero trap. */ - cpu_raise_exception_ra(env, TT_DIV_ZERO, GETPC()); - } - return a / b; -} -#endif - -target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1, - target_ulong src2) -{ - target_ulong dst; - - /* Tag overflow occurs if either input has bits 0 or 1 set. */ - if ((src1 | src2) & 3) { - goto tag_overflow; - } - - dst = src1 + src2; - - /* Tag overflow occurs if the addition overflows. */ - if (~(src1 ^ src2) & (src1 ^ dst) & (1u << 31)) { - goto tag_overflow; - } - - /* Only modify the CC after any exceptions have been generated. */ - env->cc_op = CC_OP_TADDTV; - env->cc_src = src1; - env->cc_src2 = src2; - env->cc_dst = dst; - return dst; - - tag_overflow: - cpu_raise_exception_ra(env, TT_TOVF, GETPC()); -} - -target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1, - target_ulong src2) -{ - target_ulong dst; - - /* Tag overflow occurs if either input has bits 0 or 1 set. */ - if ((src1 | src2) & 3) { - goto tag_overflow; - } - - dst = src1 - src2; - - /* Tag overflow occurs if the subtraction overflows. */ - if ((src1 ^ src2) & (src1 ^ dst) & (1u << 31)) { - goto tag_overflow; - } - - /* Only modify the CC after any exceptions have been generated. */ - env->cc_op = CC_OP_TSUBTV; - env->cc_src = src1; - env->cc_src2 = src2; - env->cc_dst = dst; - return dst; - - tag_overflow: - cpu_raise_exception_ra(env, TT_TOVF, GETPC()); -} - -#ifndef TARGET_SPARC64 -void helper_power_down(CPUSPARCState *env) -{ - CPUState *cs = CPU(sparc_env_get_cpu(env)); - - cs->halted = 1; - cs->exception_index = EXCP_HLT; - env->pc = env->npc; - env->npc = env->pc + 4; - cpu_loop_exit(cs); -} -#endif |