diff options
Diffstat (limited to 'src/mame/machine/m6502_swap_op_d5_d6.h')
-rw-r--r-- | src/mame/machine/m6502_swap_op_d5_d6.h | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/src/mame/machine/m6502_swap_op_d5_d6.h b/src/mame/machine/m6502_swap_op_d5_d6.h index efcd4a69c17..aec61cf077f 100644 --- a/src/mame/machine/m6502_swap_op_d5_d6.h +++ b/src/mame/machine/m6502_swap_op_d5_d6.h @@ -4,7 +4,7 @@ m6502_swap_op_d5_d6.h - 6502 with instruction scrambling + 6502 / N2A03 with instruction scrambling ***************************************************************************/ @@ -13,8 +13,8 @@ #pragma once -#include "cpu/m6502/m6502.h" -#include "cpu/m6502/m6502d.h" +#include "cpu/m6502/n2a03.h" +#include "cpu/m6502/n2a03d.h" class m6502_swap_op_d5_d6 : public m6502_device { public: @@ -24,9 +24,6 @@ protected: class mi_decrypt : public mi_default { public: - bool m_scramble_en = false; - bool m_next_scramble = false; - virtual ~mi_decrypt() {} virtual uint8_t read_sync(uint16_t adr) override; @@ -48,6 +45,37 @@ protected: virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; }; +class n2a03_core_swap_op_d5_d6 : public n2a03_core_device { +public: + n2a03_core_swap_op_d5_d6(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + +protected: + class mi_decrypt : public mi_default { + public: + + virtual ~mi_decrypt() {} + virtual uint8_t read_sync(uint16_t adr) override; + + uint8_t descramble(uint8_t op); + }; + + class disassembler : public n2a03_disassembler { + public: + mi_decrypt *mintf; + + disassembler(mi_decrypt *m); + virtual ~disassembler() = default; + virtual u32 interface_flags() const override; + virtual u8 decrypt8(u8 value, offs_t pc, bool opcode) const override; + }; + + virtual void device_reset() override; + virtual void device_start() override; + virtual std::unique_ptr<util::disasm_interface> create_disassembler() override; +}; + + DECLARE_DEVICE_TYPE(M6502_SWAP_OP_D5_D6, m6502_swap_op_d5_d6) +DECLARE_DEVICE_TYPE(N2A03_CORE_SWAP_OP_D5_D6, n2a03_core_swap_op_d5_d6) #endif // MAME_M6502_SWAP_OP_D5_D6_H |