mirror of
https://github.com/yuzu-emu/unicorn
synced 2024-11-25 07:49:02 +00:00
5c0ce1b99c
Add all of cmpxchg, op_fetch, fetch_op, and xchg. Handle both endian-ness, and sizes up to 8. Handle expanding non-atomically, when emulating in serial. Backports commit c482cb117cc418115ca9c6d21a7a2315414c0a40 from qemu
138 lines
3.4 KiB
C
138 lines
3.4 KiB
C
/*
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* Tiny Code Generator for QEMU
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*
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* Copyright (c) 2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "unicorn/platform.h"
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#include "qemu/host-utils.h"
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#include "cpu.h"
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#include "exec/helper-proto.h"
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#include "exec/cpu_ldst.h"
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#include "exec/exec-all.h"
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/* 32-bit helpers */
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int32_t HELPER(div_i32)(int32_t arg1, int32_t arg2)
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{
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return arg1 / arg2;
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}
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int32_t HELPER(rem_i32)(int32_t arg1, int32_t arg2)
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{
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return arg1 % arg2;
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}
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uint32_t HELPER(divu_i32)(uint32_t arg1, uint32_t arg2)
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{
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return arg1 / arg2;
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}
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uint32_t HELPER(remu_i32)(uint32_t arg1, uint32_t arg2)
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{
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return arg1 % arg2;
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}
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/* 64-bit helpers */
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uint64_t HELPER(shl_i64)(uint64_t arg1, uint64_t arg2)
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{
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return arg1 << arg2;
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}
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uint64_t HELPER(shr_i64)(uint64_t arg1, uint64_t arg2)
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{
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return arg1 >> arg2;
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}
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int64_t HELPER(sar_i64)(int64_t arg1, int64_t arg2)
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{
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return arg1 >> arg2;
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}
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int64_t HELPER(div_i64)(int64_t arg1, int64_t arg2)
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{
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return arg1 / arg2;
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}
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int64_t HELPER(rem_i64)(int64_t arg1, int64_t arg2)
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{
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return arg1 % arg2;
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}
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uint64_t HELPER(divu_i64)(uint64_t arg1, uint64_t arg2)
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{
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return arg1 / arg2;
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}
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uint64_t HELPER(remu_i64)(uint64_t arg1, uint64_t arg2)
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{
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return arg1 % arg2;
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}
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uint64_t HELPER(muluh_i64)(uint64_t arg1, uint64_t arg2)
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{
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uint64_t l, h;
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mulu64(&l, &h, arg1, arg2);
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return h;
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}
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int64_t HELPER(mulsh_i64)(int64_t arg1, int64_t arg2)
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{
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uint64_t l, h;
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muls64(&l, &h, arg1, arg2);
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return h;
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}
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#ifndef CONFIG_SOFTMMU
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/* The softmmu versions of these helpers are in cputlb.c. */
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/* Do not allow unaligned operations to proceed. Return the host address. */
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static void *atomic_mmu_lookup(CPUArchState *env, target_ulong addr,
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int size, uintptr_t retaddr)
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{
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/* Enforce qemu required alignment. */
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if (unlikely(addr & (size - 1))) {
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cpu_loop_exit_atomic(ENV_GET_CPU(env), retaddr);
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}
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return g2h(addr);
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}
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/* Macro to call the above, with local variables from the use context. */
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#define ATOMIC_MMU_LOOKUP atomic_mmu_lookup(env, addr, DATA_SIZE, GETPC())
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#define ATOMIC_NAME(X) HELPER(glue(glue(atomic_ ## X, SUFFIX), END))
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#define EXTRA_ARGS
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#define DATA_SIZE 1
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#include "atomic_template.h"
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#define DATA_SIZE 2
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#include "atomic_template.h"
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#define DATA_SIZE 4
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#include "atomic_template.h"
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#define DATA_SIZE 8
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#include "atomic_template.h"
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#endif /* !CONFIG_SOFTMMU */
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