Commit fff3b4b0 authored by Laurent Vivier's avatar Laurent Vivier
Browse files

target/m68k: implement fsave/frestore 



Signed-off-by: default avatarLaurent Vivier <laurent@vivier.eu>
Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Message-Id: <20180104012913.30763-13-laurent@vivier.eu>
parent 0bdb2b3b

target/m68k/translate.c

+15 −8
Original line number Diff line number Diff line
@@ -5103,28 +5103,35 @@ DISAS_INSN(fscc) 
#if defined(CONFIG_SOFTMMU)

DISAS_INSN(frestore)

{

    M68kCPU *cpu = m68k_env_get_cpu(env);

    TCGv addr;



    if (IS_USER(s)) {

        gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);

        return;

    }



    /* TODO: Implement frestore.  */

    cpu_abort(CPU(cpu), "FRESTORE not implemented");

    if (m68k_feature(s->env, M68K_FEATURE_M68040)) {

        SRC_EA(env, addr, OS_LONG, 0, NULL);

        /* FIXME: check the state frame */

    } else {

        disas_undef(env, s, insn);

    }

}



DISAS_INSN(fsave)

{

    M68kCPU *cpu = m68k_env_get_cpu(env);



    if (IS_USER(s)) {

        gen_exception(s, s->insn_pc, EXCP_PRIVILEGE);

        return;

    }



    /* TODO: Implement fsave.  */

    cpu_abort(CPU(cpu), "FSAVE not implemented");

    if (m68k_feature(s->env, M68K_FEATURE_M68040)) {

        /* always write IDLE */

        TCGv idle = tcg_const_i32(0x41000000);

        DEST_EA(env, insn, OS_LONG, idle, NULL);

        tcg_temp_free(idle);

    } else {

        disas_undef(env, s, insn);

    }

}

#endif