2 * Tiny Code Generator for QEMU
4 * Copyright (c) 2008 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 #include "qemu/osdep.h"
25 #include "qemu/host-utils.h"
27 #include "exec/helper-proto.h"
28 #include "exec/cpu_ldst.h"
29 #include "exec/exec-all.h"
30 #include "exec/tb-hash.h"
31 #include "disas/disas.h"
36 int32_t HELPER(div_i32
)(int32_t arg1
, int32_t arg2
)
41 int32_t HELPER(rem_i32
)(int32_t arg1
, int32_t arg2
)
46 uint32_t HELPER(divu_i32
)(uint32_t arg1
, uint32_t arg2
)
51 uint32_t HELPER(remu_i32
)(uint32_t arg1
, uint32_t arg2
)
58 uint64_t HELPER(shl_i64
)(uint64_t arg1
, uint64_t arg2
)
63 uint64_t HELPER(shr_i64
)(uint64_t arg1
, uint64_t arg2
)
68 int64_t HELPER(sar_i64
)(int64_t arg1
, int64_t arg2
)
73 int64_t HELPER(div_i64
)(int64_t arg1
, int64_t arg2
)
78 int64_t HELPER(rem_i64
)(int64_t arg1
, int64_t arg2
)
83 uint64_t HELPER(divu_i64
)(uint64_t arg1
, uint64_t arg2
)
88 uint64_t HELPER(remu_i64
)(uint64_t arg1
, uint64_t arg2
)
93 uint64_t HELPER(muluh_i64
)(uint64_t arg1
, uint64_t arg2
)
96 mulu64(&l
, &h
, arg1
, arg2
);
100 int64_t HELPER(mulsh_i64
)(int64_t arg1
, int64_t arg2
)
103 muls64(&l
, &h
, arg1
, arg2
);
107 uint32_t HELPER(clz_i32
)(uint32_t arg
, uint32_t zero_val
)
109 return arg
? clz32(arg
) : zero_val
;
112 uint32_t HELPER(ctz_i32
)(uint32_t arg
, uint32_t zero_val
)
114 return arg
? ctz32(arg
) : zero_val
;
117 uint64_t HELPER(clz_i64
)(uint64_t arg
, uint64_t zero_val
)
119 return arg
? clz64(arg
) : zero_val
;
122 uint64_t HELPER(ctz_i64
)(uint64_t arg
, uint64_t zero_val
)
124 return arg
? ctz64(arg
) : zero_val
;
127 uint32_t HELPER(clrsb_i32
)(uint32_t arg
)
132 uint64_t HELPER(clrsb_i64
)(uint64_t arg
)
137 uint32_t HELPER(ctpop_i32
)(uint32_t arg
)
142 uint64_t HELPER(ctpop_i64
)(uint64_t arg
)
147 void *HELPER(lookup_tb_ptr
)(CPUArchState
*env
, target_ulong addr
)
149 CPUState
*cpu
= ENV_GET_CPU(env
);
150 TranslationBlock
*tb
;
151 target_ulong cs_base
, pc
;
152 uint32_t flags
, addr_hash
;
154 addr_hash
= tb_jmp_cache_hash_func(addr
);
155 tb
= atomic_rcu_read(&cpu
->tb_jmp_cache
[addr_hash
]);
156 cpu_get_tb_cpu_state(env
, &pc
, &cs_base
, &flags
);
160 && tb
->cs_base
== cs_base
161 && tb
->flags
== flags
))) {
162 tb
= tb_htable_lookup(cpu
, addr
, cs_base
, flags
);
164 return tcg_ctx
.code_gen_epilogue
;
166 atomic_set(&cpu
->tb_jmp_cache
[addr_hash
], tb
);
169 qemu_log_mask_and_addr(CPU_LOG_EXEC
, addr
,
170 "Chain %p [%d: " TARGET_FMT_lx
"] %s\n",
171 tb
->tc_ptr
, cpu
->cpu_index
, addr
,
172 lookup_symbol(addr
));
176 void HELPER(exit_atomic
)(CPUArchState
*env
)
178 cpu_loop_exit_atomic(ENV_GET_CPU(env
), GETPC());
181 #ifndef CONFIG_SOFTMMU
182 /* The softmmu versions of these helpers are in cputlb.c. */
184 /* Do not allow unaligned operations to proceed. Return the host address. */
185 static void *atomic_mmu_lookup(CPUArchState
*env
, target_ulong addr
,
186 int size
, uintptr_t retaddr
)
188 /* Enforce qemu required alignment. */
189 if (unlikely(addr
& (size
- 1))) {
190 cpu_loop_exit_atomic(ENV_GET_CPU(env
), retaddr
);
195 /* Macro to call the above, with local variables from the use context. */
196 #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, GETPC())
198 #define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END))
202 #include "atomic_template.h"
205 #include "atomic_template.h"
208 #include "atomic_template.h"
210 #ifdef CONFIG_ATOMIC64
212 #include "atomic_template.h"
215 /* The following is only callable from other helpers, and matches up
216 with the softmmu version. */
218 #ifdef CONFIG_ATOMIC128
222 #undef ATOMIC_MMU_LOOKUP
224 #define EXTRA_ARGS , TCGMemOpIdx oi, uintptr_t retaddr
225 #define ATOMIC_NAME(X) \
226 HELPER(glue(glue(glue(atomic_ ## X, SUFFIX), END), _mmu))
227 #define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, retaddr)
230 #include "atomic_template.h"
231 #endif /* CONFIG_ATOMIC128 */
233 #endif /* !CONFIG_SOFTMMU */