From 70a4d41e6d5fef88c5061d8a028d21bc1fa0fe8f Mon Sep 17 00:00:00 2001
From: Risugami <@>
Date: Mon, 22 Aug 2016 04:31:35 -0500
Subject: [PATCH] Added basic wheel force feedback reference and made notes on
other outputs.
---
src/mame/drivers/midvunit.cpp | 29 +++++++++++++++++++----------
src/mame/includes/midvunit.h | 1 +
src/mame/layout/crusnusa.lay | 10 ++++++++++
3 files changed, 30 insertions(+), 10 deletions(-)
diff --git a/src/mame/drivers/midvunit.cpp b/src/mame/drivers/midvunit.cpp
index d4a72da1ac5..51e59e249d1 100644
--- a/src/mame/drivers/midvunit.cpp
+++ b/src/mame/drivers/midvunit.cpp
@@ -372,23 +372,32 @@ WRITE32_MEMBER(midvunit_state::offroadc_serial_data_w)
m_midway_serial_pic2->write(space, 0, data >> 16);
}
+READ32_MEMBER(midvunit_state::midvunit_output_r)
+{
+ return 1; //will let motion testing start. unable to succeed.
+}
+
WRITE32_MEMBER(midvunit_state::midvunit_output_w)
{
int bit;
- UINT8 op = (data >> 8) & 0x0F;
+ UINT8 op = (data >> 8) & 0xFF;
UINT8 arg = data & 0xFF;
switch (op) {
- case 0x7: m_output_mode = arg; break;
- case 0xB:
+ case 0xF7: m_output_mode = arg; break;
+ case 0xFB:
switch (m_output_mode) {
- //case 0x4: wheel angle
- case 0x5:
- for (bit = 0; bit < 8; bit++) {
- output().set_lamp_value(bit, (arg >> bit) & 0x1);
- }
- break;
+ case 0x00: break; //device init?
+ case 0x04: output().set_value("wheel", (arg&0x80)?(0x7F-(arg&0x7F)):(arg|0x80)); break; //wheel motor delta. left < 128 < right. 128 is no change.
+ case 0x05: for (bit = 0; bit < 8; bit++) output().set_lamp_value(bit, (arg >> bit) & 0x1); break;
+ case 0x08: break; //unknown. rarely changed.
+ case 0x09: break; //motion init program? large payload.
+ case 0x0A: break; //motion init? always being set to 0 during attempts to test.
+ case 0x0B: break; //motor1? init to 0 at boot.
+ case 0x0C: break; //motor2? init to 0 at boot.
}
break;
+ //receives same data as midvunit_sound_w. unsure what its purpose is, but it is redundant.
+ //case 0xFD: m_dcs->data_w(arg); break;
}
}
@@ -497,7 +506,7 @@ static ADDRESS_MAP_START( midvunit_map, AS_PROGRAM, 32, midvunit_state )
AM_RANGE(0x992000, 0x992000) AM_READ_PORT("992000")
AM_RANGE(0x993000, 0x993000) AM_READWRITE(midvunit_adc_r, midvunit_adc_w)
AM_RANGE(0x994000, 0x994000) AM_WRITE(midvunit_control_w)
- AM_RANGE(0x995000, 0x995000) AM_WRITE(midvunit_output_w)
+ AM_RANGE(0x995000, 0x995000) AM_READWRITE(midvunit_output_r, midvunit_output_w)
AM_RANGE(0x995020, 0x995020) AM_WRITE(midvunit_cmos_protect_w)
AM_RANGE(0x997000, 0x997000) AM_NOP // communications
AM_RANGE(0x9a0000, 0x9a0000) AM_WRITE(midvunit_sound_w)
diff --git a/src/mame/includes/midvunit.h b/src/mame/includes/midvunit.h
index 46296ee599d..232ce14bba2 100644
--- a/src/mame/includes/midvunit.h
+++ b/src/mame/includes/midvunit.h
@@ -132,6 +132,7 @@ public:
DECLARE_WRITE32_MEMBER(midvplus_misc_w);
DECLARE_WRITE8_MEMBER(midvplus_xf1_w);
DECLARE_READ32_MEMBER(generic_speedup_r);
+ DECLARE_READ32_MEMBER(midvunit_output_r);
DECLARE_WRITE32_MEMBER(midvunit_output_w);
DECLARE_DRIVER_INIT(crusnu40);
DECLARE_DRIVER_INIT(crusnu21);
diff --git a/src/mame/layout/crusnusa.lay b/src/mame/layout/crusnusa.lay
index ae51a8a2c36..004223f45e0 100644
--- a/src/mame/layout/crusnusa.lay
+++ b/src/mame/layout/crusnusa.lay
@@ -70,6 +70,12 @@
+
+
+
+
+
+
@@ -103,5 +109,9 @@
+
+
+
+