target-s390x: implement TRANSLATE EXTENDED instruction
It is part of the basic zArchitecture instructions. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Alexander Graf <agraf@suse.de>
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@ -77,6 +77,7 @@ DEF_HELPER_FLAGS_3(sqxb, TCG_CALL_NO_WG, i64, env, i64, i64)
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DEF_HELPER_FLAGS_1(cvd, TCG_CALL_NO_RWG_SE, i64, s32)
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DEF_HELPER_FLAGS_1(cvd, TCG_CALL_NO_RWG_SE, i64, s32)
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DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_FLAGS_4(unpk, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
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DEF_HELPER_4(tre, i64, env, i64, i64, i64)
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DEF_HELPER_4(trt, i32, env, i32, i64, i64)
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DEF_HELPER_4(trt, i32, env, i32, i64, i64)
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DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
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DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
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DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)
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DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)
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@ -761,6 +761,8 @@
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C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0)
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C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0)
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/* TRANSLATE AND TEST */
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/* TRANSLATE AND TEST */
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C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0)
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C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0)
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/* TRANSLATE EXTENDED */
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C(0xb2a5, TRE, RRE, Z, 0, r2, r1_P, 0, tre, 0)
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/* UNPACK */
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/* UNPACK */
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/* Really format SS_b, but we pack both lengths into one argument
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/* Really format SS_b, but we pack both lengths into one argument
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@ -804,6 +804,45 @@ void HELPER(tr)(CPUS390XState *env, uint32_t len, uint64_t array,
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}
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}
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}
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}
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uint64_t HELPER(tre)(CPUS390XState *env, uint64_t array,
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uint64_t len, uint64_t trans)
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{
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uint8_t end = env->regs[0] & 0xff;
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uint64_t l = len;
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uint64_t i;
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if (!(env->psw.mask & PSW_MASK_64)) {
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array &= 0x7fffffff;
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l = (uint32_t)l;
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}
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/* Lest we fail to service interrupts in a timely manner, limit the
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amount of work we're willing to do. For now, let's cap at 8k. */
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if (l > 0x2000) {
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l = 0x2000;
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env->cc_op = 3;
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} else {
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env->cc_op = 0;
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}
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for (i = 0; i < l; i++) {
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uint8_t byte, new_byte;
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byte = cpu_ldub_data(env, array + i);
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if (byte == end) {
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env->cc_op = 1;
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break;
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}
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new_byte = cpu_ldub_data(env, trans + byte);
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cpu_stb_data(env, array + i, new_byte);
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}
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env->retxl = len - i;
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return array + i;
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}
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uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
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uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
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uint64_t trans)
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uint64_t trans)
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{
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{
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@ -3787,6 +3787,15 @@ static ExitStatus op_tr(DisasContext *s, DisasOps *o)
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return NO_EXIT;
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return NO_EXIT;
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}
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}
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static ExitStatus op_tre(DisasContext *s, DisasOps *o)
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{
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potential_page_fault(s);
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gen_helper_tre(o->out, cpu_env, o->out, o->out2, o->in2);
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return_low128(o->out2);
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set_cc_static(s);
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return NO_EXIT;
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}
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static ExitStatus op_trt(DisasContext *s, DisasOps *o)
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static ExitStatus op_trt(DisasContext *s, DisasOps *o)
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{
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{
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TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
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TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
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