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target/s390x: Implement TRTR 

Drop TRT from the set of insns handled internally by EXECUTE.
It's more important to adjust the existing helper to handle
both TRT and TRTR.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2017-06-18 11:45:47 -07:00
parent be7acb5839
commit b213c9f58e
4 changed files with 25 additions and 7 deletions
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1
target/s390x/helper.h
View File

@ -97,6 +97,7 @@ DEF_HELPER_FLAGS_3(tp, TCG_CALL_NO_WG, i32, env, i64, i32)
DEF_HELPER_FLAGS_4(tr, TCG_CALL_NO_WG, void, env, i32, i64, i64)
DEF_HELPER_4(tre, i64, env, i64, i64, i64)
DEF_HELPER_4(trt, i32, env, i32, i64, i64)
DEF_HELPER_4(trtr, i32, env, i32, i64, i64)
DEF_HELPER_5(trXX, i32, env, i32, i32, i32, i32)
DEF_HELPER_4(cksm, i64, env, i64, i64, i64)
DEF_HELPER_FLAGS_5(calc_cc, TCG_CALL_NO_RWG_SE, i32, env, i32, i64, i64, i64)

2
target/s390x/insn-data.def
View File

@ -916,6 +916,8 @@
C(0xdc00, TR, SS_a, Z, la1, a2, 0, 0, tr, 0)
/* TRANSLATE AND TEST */
C(0xdd00, TRT, SS_a, Z, la1, a2, 0, 0, trt, 0)
/* TRANSLATE AND TEST REVERSE */
C(0xd000, TRTR, SS_a, ETF3, la1, a2, 0, 0, trtr, 0)
/* TRANSLATE EXTENDED */
C(0xb2a5, TRE, RRE, Z, 0, r2, r1_P, 0, tre, 0)

20
target/s390x/mem_helper.c
View File

@ -1277,17 +1277,18 @@ uint64_t HELPER(tre)(CPUS390XState *env, uint64_t array,
return array + i;
}
static uint32_t do_helper_trt(CPUS390XState *env, uint32_t len, uint64_t array,
uint64_t trans, uintptr_t ra)
static inline uint32_t do_helper_trt(CPUS390XState *env, int len,
uint64_t array, uint64_t trans,
int inc, uintptr_t ra)
{
uint32_t i;
int i;
for (i = 0; i <= len; i++) {
uint8_t byte = cpu_ldub_data_ra(env, array + i, ra);
uint8_t byte = cpu_ldub_data_ra(env, array + i * inc, ra);
uint8_t sbyte = cpu_ldub_data_ra(env, trans + byte, ra);
if (sbyte != 0) {
set_address(env, 1, array + i);
set_address(env, 1, array + i * inc);
env->regs[2] = deposit64(env->regs[2], 0, 8, sbyte);
return (i == len) ? 2 : 1;
}
@ -1299,7 +1300,13 @@ static uint32_t do_helper_trt(CPUS390XState *env, uint32_t len, uint64_t array,
uint32_t HELPER(trt)(CPUS390XState *env, uint32_t len, uint64_t array,
uint64_t trans)
{
return do_helper_trt(env, len, array, trans, GETPC());
return do_helper_trt(env, len, array, trans, 1, GETPC());
}
uint32_t HELPER(trtr)(CPUS390XState *env, uint32_t len, uint64_t array,
uint64_t trans)
{
return do_helper_trt(env, len, array, trans, -1, GETPC());
}
/* Translate one/two to one/two */
@ -2119,7 +2126,6 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, uint64_t r1, uint64_t addr)
[0x6] = do_helper_oc,
[0x7] = do_helper_xc,
[0xc] = do_helper_tr,
[0xd] = do_helper_trt,
};
dx_helper helper = dx[opc & 0xf];

9
target/s390x/translate.c
View File

@ -4447,6 +4447,15 @@ static ExitStatus op_trt(DisasContext *s, DisasOps *o)
return NO_EXIT;
}
static ExitStatus op_trtr(DisasContext *s, DisasOps *o)
{
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
gen_helper_trtr(cc_op, cpu_env, l, o->addr1, o->in2);
tcg_temp_free_i32(l);
set_cc_static(s);
return NO_EXIT;
}
static ExitStatus op_trXX(DisasContext *s, DisasOps *o)
{
TCGv_i32 r1 = tcg_const_i32(get_field(s->fields, r1));