diff options
Diffstat (limited to 'src/mame/drivers/alpha68k_n.cpp')
-rw-r--r-- | src/mame/drivers/alpha68k_n.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mame/drivers/alpha68k_n.cpp b/src/mame/drivers/alpha68k_n.cpp index 2a09a07f63b..b997ec5943c 100644 --- a/src/mame/drivers/alpha68k_n.cpp +++ b/src/mame/drivers/alpha68k_n.cpp @@ -339,11 +339,11 @@ void alpha68k_N_state::sound_map(address_map &map) map(0xe004, 0xe004).w("dac", FUNC(dac_byte_interface::data_w)); map(0xe006, 0xe00e).nopw(); // soundboard I/O's, ignored /* reference only - AM_RANGE(0xe006, 0xe006) AM_WRITENOP // NMI: diminishing saw-tooth - AM_RANGE(0xe008, 0xe008) AM_WRITENOP // NMI: 00 - AM_RANGE(0xe00a, 0xe00a) AM_WRITENOP // RST38: 20 - AM_RANGE(0xe00c, 0xe00c) AM_WRITENOP // RST30: 00 on entry - AM_RANGE(0xe00e, 0xe00e) AM_WRITENOP // RST30: 00,02,ff on exit(0x1d88) + map(0xe006, 0xe006).nopw(); // NMI: diminishing saw-tooth + map(0xe008, 0xe008).nopw(); // NMI: 00 + map(0xe00a, 0xe00a).nopw(); // RST38: 20 + map(0xe00c, 0xe00c).nopw(); // RST30: 00 on entry + map(0xe00e, 0xe00e).nopw(); // RST30: 00,02,ff on exit(0x1d88) */ } |