diff options
Diffstat (limited to 'src/mame/drivers/mac128.cpp')
-rw-r--r-- | src/mame/drivers/mac128.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/drivers/mac128.cpp b/src/mame/drivers/mac128.cpp index 884f29500bb..43b184c2c81 100644 --- a/src/mame/drivers/mac128.cpp +++ b/src/mame/drivers/mac128.cpp @@ -698,7 +698,7 @@ void mac128_state::via_sync() uint64_t vpa_cycle = cur_cycle+2; uint64_t via_start_cycle = (vpa_cycle + 9) / 10; uint64_t end_cycle = via_start_cycle * 10 + 4; - m_maincpu->adjust_icount(cur_cycle - end_cycle); + m_maincpu->adjust_icount(cur_cycle - end_cycle - 4); // 4 cycles already counted by the core } uint16_t mac128_state::mac_via_r(offs_t offset) |