Commit da1bcae6 authored by Richard Henderson's avatar Richard Henderson
Browse files

target-sparc: Use tcg_gen_atomic_xchg_tl 



Tested-by: default avatarMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: default avatarRichard Henderson <rth@twiddle.net>
parent 47b2696b

target-sparc/translate.c

+4 −15
Original line number Diff line number Diff line
@@ -2026,27 +2026,16 @@ static inline void gen_ne_fop_QD(DisasContext *dc, int rd, int rs, 
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 */