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Diffstat (limited to 'src/devices/cpu/m6502/n2a03.h')
-rw-r--r--src/devices/cpu/m6502/n2a03.h74
1 files changed, 0 insertions, 74 deletions
diff --git a/src/devices/cpu/m6502/n2a03.h b/src/devices/cpu/m6502/n2a03.h
deleted file mode 100644
index d11d4d86a1c..00000000000
--- a/src/devices/cpu/m6502/n2a03.h
+++ /dev/null
@@ -1,74 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Olivier Galibert
-/***************************************************************************
-
- n2a03.h
-
- 6502, NES variant
-
-***************************************************************************/
-#ifndef MAME_CPU_M6502_N2A03_H
-#define MAME_CPU_M6502_N2A03_H
-
-#pragma once
-
-#include "m6502.h"
-#include "sound/nes_apu.h"
-
-class n2a03_device : public m6502_device, public device_mixer_interface {
-public:
- n2a03_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
-
- virtual std::unique_ptr<util::disasm_interface> create_disassembler() override;
-
- virtual void do_exec_full() override;
- virtual void do_exec_partial() override;
-
- READ8_MEMBER(psg1_4014_r);
- READ8_MEMBER(psg1_4015_r);
- WRITE8_MEMBER(psg1_4015_w);
- WRITE8_MEMBER(psg1_4017_w);
-
- void n2a03_map(address_map &map);
-protected:
-#define O(o) void o ## _full(); void o ## _partial()
-
- // n2a03 opcodes - same as 6502 with D disabled
- O(adc_nd_aba); O(adc_nd_abx); O(adc_nd_aby); O(adc_nd_idx); O(adc_nd_idy); O(adc_nd_imm); O(adc_nd_zpg); O(adc_nd_zpx);
- O(arr_nd_imm);
- O(isb_nd_aba); O(isb_nd_abx); O(isb_nd_aby); O(isb_nd_idx); O(isb_nd_idy); O(isb_nd_zpg); O(isb_nd_zpx);
- O(rra_nd_aba); O(rra_nd_abx); O(rra_nd_aby); O(rra_nd_idx); O(rra_nd_idy); O(rra_nd_zpg); O(rra_nd_zpx);
- O(sbc_nd_aba); O(sbc_nd_abx); O(sbc_nd_aby); O(sbc_nd_idx); O(sbc_nd_idy); O(sbc_nd_imm); O(sbc_nd_zpg); O(sbc_nd_zpx);
-
-#undef O
-
- required_device<nesapu_device> m_apu;
-
- virtual void device_add_mconfig(machine_config &config) override;
-
-private:
- DECLARE_WRITE_LINE_MEMBER(apu_irq);
- DECLARE_READ8_MEMBER(apu_read_mem);
-
-};
-
-/* These are the official XTAL values and clock rates used by Nintendo for
- manufacturing throughout the production of the 2A03. PALC_APU_CLOCK is
- the clock rate devised by UMC(?) for PAL Famicom clone hardware. */
-
-#define N2A03_NTSC_XTAL XTAL(21'477'272)
-#define N2A03_PAL_XTAL XTAL(26'601'712)
-#define NTSC_APU_CLOCK (N2A03_NTSC_XTAL/12) /* 1.7897726666... MHz */
-#define PAL_APU_CLOCK (N2A03_PAL_XTAL/16) /* 1.662607 MHz */
-#define PALC_APU_CLOCK (N2A03_PAL_XTAL/15) /* 1.77344746666... MHz */
-
-enum {
- N2A03_IRQ_LINE = m6502_device::IRQ_LINE,
- N2A03_APU_IRQ_LINE = m6502_device::APU_IRQ_LINE,
- N2A03_NMI_LINE = m6502_device::NMI_LINE,
- N2A03_SET_OVERFLOW = m6502_device::V_LINE
-};
-
-DECLARE_DEVICE_TYPE(N2A03, n2a03_device)
-
-#endif // MAME_CPU_M6502_N2A03_H