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Diffstat (limited to 'src/mame/machine/nl_stuntcyc.cpp')
-rw-r--r--src/mame/machine/nl_stuntcyc.cpp10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/mame/machine/nl_stuntcyc.cpp b/src/mame/machine/nl_stuntcyc.cpp
index 37a4f639568..8d534fb2312 100644
--- a/src/mame/machine/nl_stuntcyc.cpp
+++ b/src/mame/machine/nl_stuntcyc.cpp
@@ -12,8 +12,8 @@
NETLIST_START(stuntcyc)
SOLVER(Solver, 48000)
+
PARAM(Solver.PARALLEL, 0) // Don't do parallel solvers
- PARAM(Solver.ACCURACY, 1e-4) // works and is sufficient
PARAM(NETLIST.USE_DEACTIVATE, 1)
ANALOG_INPUT(V5, 5)
@@ -22,8 +22,8 @@ NETLIST_START(stuntcyc)
TTL_INPUT(high, 1)
TTL_INPUT(low, 0)
- MAINCLOCK(main_clk, 14258400)
- //MAINCLOCK(main_clk, 14318181)
+ //MAINCLOCK(main_clk, 14258400)
+ MAINCLOCK(main_clk, 14318000)
ALIAS(Y1, main_clk)
#if 1
@@ -326,6 +326,10 @@ NETLIST_START(stuntcyc)
NET_C(R15.1, E4_2.Q)
//RES(R107, RES_K(1))
+ // FIXME: Having the diode in the video output has a negative impact
+ // on performance. A "fast-but-not-perfect" approach could
+ // use a switched resistor.
+
DIODE(D17, "1N914")
NET_C(D17.K, COMP_SYNC_Q)
//NET_C(D17.A, R107.1, R13.2, R14.2, R15.2)