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authorThomas Huth <thuth@redhat.com>2016-10-11 08:56:52 +0200
committerThomas Huth <thuth@redhat.com>2016-12-20 21:52:12 +0100
commitfcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch)
tree2b450d96b01455df8ed908bf8f26ddc388a03380 /target-sparc/helper.c
parent82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (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> [cris&microblaze 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.c257
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