static void gen_swap(DisasContext *dc, TCGv dst, TCGv src,
TCGv addr, int mmu_idx, TCGMemOp memop)
{
- /* ??? Should be atomic. */
- TCGv t0 = tcg_temp_new();
gen_address_mask(dc, addr);
- tcg_gen_qemu_ld_tl(t0, addr, mmu_idx, memop);
- tcg_gen_qemu_st_tl(src, addr, mmu_idx, memop);
- tcg_gen_mov_tl(dst, t0);
- tcg_temp_free(t0);
+ tcg_gen_atomic_xchg_tl(dst, addr, src, mmu_idx, memop);
}
static void gen_ldstub(DisasContext *dc, TCGv dst, TCGv addr, int mmu_idx)
{
- /* ??? Should be atomic. */
- TCGv_i32 t0 = tcg_temp_new_i32();
- TCGv_i32 t1 = tcg_const_i32(0xff);
-
+ TCGv m1 = tcg_const_tl(0xff);
gen_address_mask(dc, addr);
- tcg_gen_qemu_ld_i32(t0, addr, mmu_idx, MO_UB);
- tcg_gen_qemu_st_i32(t1, addr, mmu_idx, MO_UB);
- tcg_gen_extu_i32_tl(dst, t0);
- tcg_temp_free_i32(t0);
- tcg_temp_free_i32(t1);
+ tcg_gen_atomic_xchg_tl(dst, addr, m1, mmu_idx, MO_UB);
+ tcg_temp_free(m1);
}
/* asi moves */