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s390x/tcg: Fix max_byte detection for stfle

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used_stfl_bytes is 0, before initialized via prepare_stfl() on the
first invocation. We have to move the calculation of max_bytes after
prepare_stfl().

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
David Hildenbrand 2019-05-31 16:31:44 +02:00
parent 4f83d7d212
commit 88a29e8675
1 changed files with 2 additions and 1 deletions
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3
target/s390x/misc_helper.c
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@ -669,7 +669,7 @@ uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr)
{
const uintptr_t ra = GETPC();
const int count_bytes = ((env->regs[0] & 0xff) + 1) * 8;
const int max_bytes = ROUND_UP(used_stfl_bytes, 8);
int max_bytes;
int i;
if (addr & 0x7) {
@ -677,6 +677,7 @@ uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr)
}
prepare_stfl();
max_bytes = ROUND_UP(used_stfl_bytes, 8);
for (i = 0; i < count_bytes; ++i) {
cpu_stb_data_ra(env, addr + i, stfl_bytes[i], ra);
}