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target/s390x: Use unwind data for helper_nc

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Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2017-05-19 09:41:29 -07:00
parent a5cfc2235b
commit 349d078a26
2 changed files with 18 additions and 14 deletions
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31
target/s390x/mem_helper.c
View File

@ -119,23 +119,28 @@ static void fast_memmove(CPUS390XState *env, uint64_t dest, uint64_t src,
}
/* and on array */
uint32_t HELPER(nc)(CPUS390XState *env, uint32_t l, uint64_t dest,
uint64_t src)
static uint32_t do_helper_nc(CPUS390XState *env, uint32_t l, uint64_t dest,
uint64_t src, uintptr_t ra)
{
int i;
unsigned char x;
uint32_t cc = 0;
uint32_t i;
uint8_t c = 0;
HELPER_LOG("%s l %d dest %" PRIx64 " src %" PRIx64 "\n",
__func__, l, dest, src);
for (i = 0; i <= l; i++) {
x = cpu_ldub_data(env, dest + i) & cpu_ldub_data(env, src + i);
if (x) {
cc = 1;
}
cpu_stb_data(env, dest + i, x);
uint8_t x = cpu_ldub_data_ra(env, src + i, ra);
x &= cpu_ldub_data_ra(env, dest + i, ra);
c |= x;
cpu_stb_data_ra(env, dest + i, x, ra);
}
return cc;
return c != 0;
}
uint32_t HELPER(nc)(CPUS390XState *env, uint32_t l, uint64_t dest,
uint64_t src)
{
return do_helper_nc(env, l, dest, src, GETPC());
}
/* xor on array */
@ -1213,8 +1218,8 @@ uint32_t HELPER(ex)(CPUS390XState *env, uint32_t cc, uint64_t v1,
get_address(env, 0, b2, d2));
break;
case 0x400:
cc = helper_nc(env, l, get_address(env, 0, b1, d1),
get_address(env, 0, b2, d2));
cc = do_helper_nc(env, l, get_address(env, 0, b1, d1),
get_address(env, 0, b2, d2), 0);
break;
case 0x500:
cc = helper_clc(env, l, get_address(env, 0, b1, d1),

1
target/s390x/translate.c
View File

@ -3048,7 +3048,6 @@ static ExitStatus op_nabsf128(DisasContext *s, DisasOps *o)
static ExitStatus op_nc(DisasContext *s, DisasOps *o)
{
TCGv_i32 l = tcg_const_i32(get_field(s->fields, l1));
potential_page_fault(s);
gen_helper_nc(cc_op, cpu_env, l, o->addr1, o->in2);
tcg_temp_free_i32(l);
set_cc_static(s);