diff options
Diffstat (limited to 'target/s390x/cc_helper.c')
| -rw-r--r-- | target/s390x/cc_helper.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/target/s390x/cc_helper.c b/target/s390x/cc_helper.c index 0e467bf2b6..a00294f183 100644 --- a/target/s390x/cc_helper.c +++ b/target/s390x/cc_helper.c @@ -402,6 +402,20 @@ static uint32_t cc_calc_lcbb(uint64_t dst) return dst == 16 ? 0 : 3; } +static uint32_t cc_calc_vc(uint64_t low, uint64_t high) +{ + if (high == -1ull && low == -1ull) { + /* all elements match */ + return 0; + } else if (high == 0 && low == 0) { + /* no elements match */ + return 3; + } else { + /* some elements but not all match */ + return 1; + } +} + static uint32_t do_calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst, uint64_t vr) { @@ -514,6 +528,9 @@ static uint32_t do_calc_cc(CPUS390XState *env, uint32_t cc_op, case CC_OP_LCBB: r = cc_calc_lcbb(dst); break; + case CC_OP_VC: + r = cc_calc_vc(src, dst); + break; case CC_OP_NZ_F32: r = set_cc_nz_f32(dst); |