diff options
Diffstat (limited to 'target/s390x/mem_helper.c')
| -rw-r--r-- | target/s390x/mem_helper.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 0108611cc9..1901e9dfc7 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -2473,8 +2473,8 @@ void HELPER(ex)(CPUS390XState *env, uint32_t ilen, uint64_t r1, uint64_t addr) uint32_t d1 = extract64(insn, 32, 12); uint32_t b2 = extract64(insn, 28, 4); uint32_t d2 = extract64(insn, 16, 12); - uint64_t a1 = wrap_address(env, env->regs[b1] + d1); - uint64_t a2 = wrap_address(env, env->regs[b2] + d2); + uint64_t a1 = wrap_address(env, (b1 ? env->regs[b1] : 0) + d1); + uint64_t a2 = wrap_address(env, (b2 ? env->regs[b2] : 0) + d2); env->cc_op = helper(env, l, a1, a2, 0); env->psw.addr += ilen; |