From c7b853d689b5df05d6ebca82b471625a81bbb9bf Mon Sep 17 00:00:00 2001
From: Ville Linde <villedevs@gmail.com>
Date: Sun, 18 Dec 2016 21:14:47 +0200
Subject: [PATCH] mb86235: disable recompiler for now (nw)

---
 src/devices/cpu/mb86235/mb86235.cpp | 20 ++++++++++++++++++++
 src/mame/drivers/model2.cpp         |  4 ++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/devices/cpu/mb86235/mb86235.cpp b/src/devices/cpu/mb86235/mb86235.cpp
index eb589c83d13..8dd67ab83c5 100644
--- a/src/devices/cpu/mb86235/mb86235.cpp
+++ b/src/devices/cpu/mb86235/mb86235.cpp
@@ -17,6 +17,8 @@
 #include "mb86235fe.h"
 
 
+#define ENABLE_DRC		0
+
 
 #define CACHE_SIZE                      (1 * 1024 * 1024)
 #define COMPILE_BACKWARDS_BYTES         128
@@ -42,7 +44,11 @@ ADDRESS_MAP_END
 /* Execute cycles */
 void mb86235_device::execute_run()
 {
+#if ENABLE_DRC
 	run_drc();
+#else
+	m_core->icount = 0;
+#endif
 }
 
 
@@ -227,6 +233,7 @@ offs_t mb86235_device::disasm_disassemble(std::ostream &stream, offs_t pc, const
 
 void mb86235_device::fifoin_w(uint64_t data)
 {
+#if ENABLE_DRC
 	if (m_core->fifoin.num >= FIFOIN_SIZE)
 	{
 		fatalerror("fifoin_w: pushing to full fifo");
@@ -239,19 +246,32 @@ void mb86235_device::fifoin_w(uint64_t data)
 	m_core->fifoin.wpos++;
 	m_core->fifoin.wpos &= FIFOIN_SIZE-1;
 	m_core->fifoin.num++;
+#endif
 }
 
 bool mb86235_device::is_fifoin_full()
 {
+#if ENABLE_DRC
 	return m_core->fifoin.num >= FIFOIN_SIZE;
+#else
+	return false;
+#endif
 }
 
 uint64_t mb86235_device::fifoout0_r()
 {
+#if ENABLE_DRC
 	fatalerror("fifoout0_r");
+#else
+	return 0;
+#endif
 }
 
 bool mb86235_device::is_fifoout0_empty()
 {
+#if ENABLE_DRC
 	return m_core->fifoout0.num == 0;
+#else
+	return false;
+#endif
 }
\ No newline at end of file
diff --git a/src/mame/drivers/model2.cpp b/src/mame/drivers/model2.cpp
index 82d693dfca4..0849e185cc3 100644
--- a/src/mame/drivers/model2.cpp
+++ b/src/mame/drivers/model2.cpp
@@ -773,7 +773,7 @@ READ32_MEMBER(model2_state::copro_fifo_r)
 	else
 	{
 		// TODO
-		printf("FIFO OUT read\n");
+//		printf("FIFO OUT read\n");
 		if (m_tgpx4->is_fifoout0_empty())
 		{
 			/* Reading from empty FIFO causes the i960 to enter wait state */
@@ -833,7 +833,7 @@ WRITE32_MEMBER(model2_state::copro_fifo_w)
 			if (m_tgpx4->is_fifoin_full())
 				printf("trying to push to full fifo!\n");
 
-			printf("push %08X at %08X\n", data, space.device().safe_pc());
+//			printf("push %08X at %08X\n", data, space.device().safe_pc());
 			m_tgpx4->fifoin_w(data);
 		}
 	}