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Diffstat (limited to 'src/devices/cpu/m6502/m6502mtu.cpp')
-rw-r--r--src/devices/cpu/m6502/m6502mtu.cpp76
1 files changed, 0 insertions, 76 deletions
diff --git a/src/devices/cpu/m6502/m6502mtu.cpp b/src/devices/cpu/m6502/m6502mtu.cpp
deleted file mode 100644
index 917ca93158e..00000000000
--- a/src/devices/cpu/m6502/m6502mtu.cpp
+++ /dev/null
@@ -1,76 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Olivier Galibert
-/***************************************************************************
-
- m6502mtu.cpp
-
- M6502 with MTU external banking hardware
-
-***************************************************************************/
-
-#include "emu.h"
-#include "m6502mtu.h"
-
-DEFINE_DEVICE_TYPE(M6502MTU, m6502mtu_device, "m6502mtu", "M6502 with MTU banking")
-
-m6502mtu_device::m6502mtu_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
- m6502_device(mconfig, M6502MTU, tag, owner, clock)
-{
- program_config.m_addr_width = 18;
- sprogram_config.m_addr_width = 18;
-}
-
-void m6502mtu_device::device_start()
-{
- mintf = nullptr;
- space(AS_PROGRAM).specific(cprogram);
- space(has_space(AS_OPCODES) ? AS_OPCODES : AS_PROGRAM).specific(csprogram);
-
- save_item(NAME(low_instruction));
- save_item(NAME(interrupt_mode));
- save_item(NAME(pbank));
- save_item(NAME(dbank));
-
- init();
-}
-
-void m6502mtu_device::device_reset()
-{
- m6502_device::device_reset();
- pbank = 0;
- dbank = 0;
- low_instruction = false;
- interrupt_mode = false;
-}
-
-
-void m6502mtu_device::prefetchd()
-{
- sync = true;
- sync_w(ASSERT_LINE);
- NPC = PC;
- low_instruction = PC < 0x200;
- IR = csprogram.read_byte(low_instruction || interrupt_mode ? PC : PC | pbank);
- sync = false;
- sync_w(CLEAR_LINE);
-
- if((nmi_pending || ((irq_state || apu_irq_state) && !(P & F_I))) && !inhibit_interrupts) {
- irq_taken = true;
- IR = 0x00;
- } else
- PC++;
-}
-
-void m6502mtu_device::prefetchd_noirq()
-{
- sync = true;
- sync_w(ASSERT_LINE);
- NPC = PC;
- low_instruction = PC < 0x200;
- IR = csprogram.read_byte(low_instruction || interrupt_mode ? PC : PC | pbank);
- sync = false;
- sync_w(CLEAR_LINE);
- PC++;
-}
-
-#include "cpu/m6502/m6502mtu.hxx"