summaryrefslogtreecommitdiffstatshomepage
path: root/src/devices/cpu/cr16c/cr16cdasm.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/devices/cpu/cr16c/cr16cdasm.h')
-rw-r--r--src/devices/cpu/cr16c/cr16cdasm.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/src/devices/cpu/cr16c/cr16cdasm.h b/src/devices/cpu/cr16c/cr16cdasm.h
new file mode 100644
index 00000000000..6d9fb50969f
--- /dev/null
+++ b/src/devices/cpu/cr16c/cr16cdasm.h
@@ -0,0 +1,50 @@
+// license:BSD-3-Clause
+// copyright-holders:AJR
+
+#ifndef MAME_CPU_CR16C_CR16CDASM_H
+#define MAME_CPU_CR16C_CR16CDASM_H
+
+#pragma once
+
+class cr16c_disassembler : public util::disasm_interface
+{
+public:
+ // construction/destruction
+ cr16c_disassembler();
+
+ // disassembler overrides
+ virtual u32 opcode_alignment() const override;
+ virtual offs_t disassemble(std::ostream &stream, offs_t pc, const data_buffer &opcodes, const data_buffer &params) override;
+
+protected:
+ // formatting helpers
+ void format_reg(std::ostream &stream, u8 value);
+ void format_rpair(std::ostream &stream, u8 value);
+ void format_rrpair(std::ostream &stream, u8 value);
+ void format_rproc(std::ostream &stream, u8 value, bool d);
+ void format_imm20(std::ostream &stream, u32 imm);
+ void format_imm32(std::ostream &stream, u32 imm);
+ void format_abs20(std::ostream &stream, u32 addr);
+ void format_abs24(std::ostream &stream, u32 addr);
+ void format_disp4(std::ostream &stream, u8 disp);
+ void format_disp4_x2(std::ostream &stream, u8 disp);
+ void format_disp14(std::ostream &stream, u16 disp);
+ void format_disp16(std::ostream &stream, u16 disp);
+ void format_disp20(std::ostream &stream, u32 disp);
+ void format_disp20_neg(std::ostream &stream, u32 disp);
+ void format_pc_disp4(std::ostream &stream, offs_t pc, u8 disp);
+ void format_pc_disp8(std::ostream &stream, offs_t pc, u8 disp);
+ void format_pc_disp16(std::ostream &stream, offs_t pc, u16 disp);
+ void format_pc_disp24(std::ostream &stream, offs_t pc, u32 disp);
+ void format_excp_vect(std::ostream &stream, u8 value);
+
+ // disassembly helpers
+ offs_t dasm_imm4_16_reg(std::ostream &stream, offs_t pc, u16 opcode, bool i, const data_buffer &opcodes);
+ offs_t dasm_imm4_16_rpair(std::ostream &stream, offs_t pc, u16 opcode, const data_buffer &opcodes);
+
+private:
+ // static tables
+ static const char *const s_cc[14];
+};
+
+#endif // MAME_CPU_CR16C_CR16CDASM_H