summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/cpu/cops1/cops1d.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/cpu/cops1/cops1d.h')
-rw-r--r--src/devices/cpu/cops1/cops1d.h53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/devices/cpu/cops1/cops1d.h b/src/devices/cpu/cops1/cops1d.h
new file mode 100644
index 00000000000..d7a98a9f638
--- /dev/null
+++ b/src/devices/cpu/cops1/cops1d.h
@@ -0,0 +1,53 @@
+// license:BSD-3-Clause
+// copyright-holders:hap
+/*
+
+ National Semiconductor COPS(MM57 MCU family) disassembler
+
+*/
+
+#ifndef MAME_CPU_COPS1_COPS1D_H
+#define MAME_CPU_COPS1_COPS1D_H
+
+#pragma once
+
+
+class cops1_common_disassembler : public util::disasm_interface
+{
+public:
+ cops1_common_disassembler();
+ virtual ~cops1_common_disassembler() = default;
+
+ virtual u32 opcode_alignment() const override { return 1; }
+ virtual u32 interface_flags() const override { return NONLINEAR_PC | PAGED; }
+ virtual u32 page_address_bits() const override { return 6; }
+ virtual offs_t pc_linear_to_real(offs_t pc) const override { return (pc & ~0x3f) | m_l2r[pc & 0x3f]; }
+ virtual offs_t pc_real_to_linear(offs_t pc) const override { return (pc & ~0x3f) | m_r2l[pc & 0x3f]; }
+
+protected:
+ enum e_mnemonics : unsigned;
+ static const char *const s_name[];
+ static const u8 s_bits[];
+ static const u32 s_flags[];
+
+ u8 m_l2r[0x40];
+ u8 m_r2l[0x40];
+
+ offs_t increment_pc(offs_t pc);
+ offs_t common_disasm(const u8 *lut_opmap, std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params);
+};
+
+class mm5799_disassembler : public cops1_common_disassembler
+{
+public:
+ mm5799_disassembler() = default;
+ virtual ~mm5799_disassembler() = default;
+
+ virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
+
+private:
+ static const u8 mm5799_opmap[0x100];
+
+};
+
+#endif // MAME_CPU_COPS1_COPS1D_H