diff options
Diffstat (limited to 'target/i386/tcg/mem_helper.c')
-rw-r--r-- | target/i386/tcg/mem_helper.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/target/i386/tcg/mem_helper.c b/target/i386/tcg/mem_helper.c index 814786bb87..3ef84e90d9 100644 --- a/target/i386/tcg/mem_helper.c +++ b/target/i386/tcg/mem_helper.c @@ -27,75 +27,6 @@ #include "tcg/tcg.h" #include "helper-tcg.h" -#ifdef TARGET_X86_64 -void helper_cmpxchg16b_unlocked(CPUX86State *env, target_ulong a0) -{ - uintptr_t ra = GETPC(); - Int128 oldv, cmpv, newv; - uint64_t o0, o1; - int eflags; - bool success; - - if ((a0 & 0xf) != 0) { - raise_exception_ra(env, EXCP0D_GPF, GETPC()); - } - eflags = cpu_cc_compute_all(env, CC_OP); - - cmpv = int128_make128(env->regs[R_EAX], env->regs[R_EDX]); - newv = int128_make128(env->regs[R_EBX], env->regs[R_ECX]); - - o0 = cpu_ldq_data_ra(env, a0 + 0, ra); - o1 = cpu_ldq_data_ra(env, a0 + 8, ra); - - oldv = int128_make128(o0, o1); - success = int128_eq(oldv, cmpv); - if (!success) { - newv = oldv; - } - - cpu_stq_data_ra(env, a0 + 0, int128_getlo(newv), ra); - cpu_stq_data_ra(env, a0 + 8, int128_gethi(newv), ra); - - if (success) { - eflags |= CC_Z; - } else { - env->regs[R_EAX] = int128_getlo(oldv); - env->regs[R_EDX] = int128_gethi(oldv); - eflags &= ~CC_Z; - } - CC_SRC = eflags; -} - -void helper_cmpxchg16b(CPUX86State *env, target_ulong a0) -{ - uintptr_t ra = GETPC(); - - if ((a0 & 0xf) != 0) { - raise_exception_ra(env, EXCP0D_GPF, ra); - } else if (HAVE_CMPXCHG128) { - int eflags = cpu_cc_compute_all(env, CC_OP); - - Int128 cmpv = int128_make128(env->regs[R_EAX], env->regs[R_EDX]); - Int128 newv = int128_make128(env->regs[R_EBX], env->regs[R_ECX]); - - int mem_idx = cpu_mmu_index(env, false); - MemOpIdx oi = make_memop_idx(MO_TE | MO_128 | MO_ALIGN, mem_idx); - Int128 oldv = cpu_atomic_cmpxchgo_le_mmu(env, a0, cmpv, newv, oi, ra); - - if (int128_eq(oldv, cmpv)) { - eflags |= CC_Z; - } else { - env->regs[R_EAX] = int128_getlo(oldv); - env->regs[R_EDX] = int128_gethi(oldv); - eflags &= ~CC_Z; - } - CC_SRC = eflags; - } else { - cpu_loop_exit_atomic(env_cpu(env), ra); - } -} -#endif - void helper_boundw(CPUX86State *env, target_ulong a0, int v) { int low, high; |