diff options
Diffstat (limited to 'src/devices/cpu/m6502/n2a03.h')
-rw-r--r-- | src/devices/cpu/m6502/n2a03.h | 74 |
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 |