diff options
| -rw-r--r-- | target/s390x/mem_helper.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 320e9ee65c..41d7336a1a 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -1980,10 +1980,13 @@ uint32_t HELPER(mvcs)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) s390_program_interrupt(env, PGM_SPECIAL_OP, ILEN_AUTO, ra); } + l = wrap_length32(env, l); if (l > 256) { /* max 256 */ l = 256; cc = 3; + } else if (!l) { + return cc; } /* XXX replace w/ memcpy */ @@ -2009,10 +2012,13 @@ uint32_t HELPER(mvcp)(CPUS390XState *env, uint64_t l, uint64_t a1, uint64_t a2) s390_program_interrupt(env, PGM_SPECIAL_OP, ILEN_AUTO, ra); } + l = wrap_length32(env, l); if (l > 256) { /* max 256 */ l = 256; cc = 3; + } else if (!l) { + return cc; } /* XXX replace w/ memcpy */ |