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-rw-r--r--qemu/target-sparc/helper.c262
1 files changed, 0 insertions, 262 deletions
diff --git a/qemu/target-sparc/helper.c b/qemu/target-sparc/helper.c
deleted file mode 100644
index 8349cbe2c..000000000
--- a/qemu/target-sparc/helper.c
+++ /dev/null
@@ -1,262 +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 "qemu/host-utils.h"
-#include "exec/helper-proto.h"
-#include "sysemu/sysemu.h"
-
-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) {
- helper_raise_exception(env, TT_PRIV_INSN);
- }
-
- 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 helper_udiv_common(CPUSPARCState *env, target_ulong a,
- target_ulong b, int cc)
-{
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- int overflow = 0;
- uint64_t x0;
- uint32_t x1;
-
- x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32);
- x1 = (b & 0xffffffff);
-
- if (x1 == 0) {
- cpu_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_DIV_ZERO);
- }
-
- 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 helper_udiv_common(env, a, b, 0);
-}
-
-target_ulong helper_udiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b)
-{
- return helper_udiv_common(env, a, b, 1);
-}
-
-static target_ulong helper_sdiv_common(CPUSPARCState *env, target_ulong a,
- target_ulong b, int cc)
-{
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- int overflow = 0;
- int64_t x0;
- int32_t x1;
-
- x0 = (a & 0xffffffff) | ((int64_t) (env->y) << 32);
- x1 = (b & 0xffffffff);
-
- if (x1 == 0) {
- cpu_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_DIV_ZERO);
- } 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 helper_sdiv_common(env, a, b, 0);
-}
-
-target_ulong helper_sdiv_cc(CPUSPARCState *env, target_ulong a, target_ulong b)
-{
- return helper_sdiv_common(env, a, b, 1);
-}
-
-#ifdef TARGET_SPARC64
-int64_t helper_sdivx(CPUSPARCState *env, int64_t a, int64_t b)
-{
- if (b == 0) {
- /* Raise divide by zero trap. */
- SPARCCPU *cpu = sparc_env_get_cpu(env);
-
- cpu_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_DIV_ZERO);
- } 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. */
- SPARCCPU *cpu = sparc_env_get_cpu(env);
-
- cpu_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_DIV_ZERO);
- }
- return a / b;
-}
-#endif
-
-target_ulong helper_taddcctv(CPUSPARCState *env, target_ulong src1,
- target_ulong src2)
-{
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- 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_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_TOVF);
-}
-
-target_ulong helper_tsubcctv(CPUSPARCState *env, target_ulong src1,
- target_ulong src2)
-{
- SPARCCPU *cpu = sparc_env_get_cpu(env);
- 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_restore_state(CPU(cpu), GETPC());
- helper_raise_exception(env, TT_TOVF);
-}
-
-#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