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Diffstat (limited to 'src/devices/cpu/z80/z80n.h')
-rw-r--r-- | src/devices/cpu/z80/z80n.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/devices/cpu/z80/z80n.h b/src/devices/cpu/z80/z80n.h new file mode 100644 index 00000000000..d4d452955fd --- /dev/null +++ b/src/devices/cpu/z80/z80n.h @@ -0,0 +1,45 @@ +// license:BSD-3-Clause +// copyright-holders:Andrei I. Holub +#ifndef MAME_CPU_Z80_Z80N_H +#define MAME_CPU_Z80_Z80N_H + +#pragma once + +#include "z80.h" + +class z80n_device : public z80_device +{ +public: + // construction/destruction + z80n_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock); + + auto in_nextreg_cb() { return m_in_nextreg_cb.bind(); } + auto out_nextreg_cb() { return m_out_nextreg_cb.bind(); } + auto out_retn_seen_cb() { return m_out_retn_seen_cb.bind(); } + + bool nmi_stackless_r() { return m_stackless; } + void nmi_stackless_w(bool data) { m_stackless = data; } + + void nmi() { set_service_attention<SA_NMI_PENDING, 1>(); } + +protected: + virtual void device_start() override ATTR_COLD; + virtual void device_reset() override ATTR_COLD; + + // device_execute_interface implementation + virtual void execute_run() override; + + devcb_write8 m_out_retn_seen_cb; + devcb_read8 m_in_nextreg_cb; + devcb_write8 m_out_nextreg_cb; + + virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; + +private: + bool m_stackless; + +}; + +DECLARE_DEVICE_TYPE(Z80N, z80n_device) + +#endif // MAME_CPU_Z80_Z80N_H |