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Diffstat (limited to 'src/devices/cpu/dsp56156/opcode.h')
-rw-r--r-- | src/devices/cpu/dsp56156/opcode.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/devices/cpu/dsp56156/opcode.h b/src/devices/cpu/dsp56156/opcode.h new file mode 100644 index 00000000000..1044af8f188 --- /dev/null +++ b/src/devices/cpu/dsp56156/opcode.h @@ -0,0 +1,46 @@ +// license:BSD-3-Clause +// copyright-holders:Andrew Gardner +#ifndef DSP56156_OPCODE_H +#define DSP56156_OPCODE_H + +#include "inst.h" +#include "pmove.h" + +#include "dsp56156.h" + +// +// An Opcode contains an instruction and a parallel move operation. +// +namespace DSP_56156 +{ +class Instruction; +class ParallelMove; + +class Opcode +{ +public: + Opcode(uint16_t w0, uint16_t w1); + virtual ~Opcode(); + + std::string disassemble() const; + void evaluate(dsp56156_core* cpustate) const; + size_t size() const; + size_t evalSize() const; + + // Peek through to the instruction + const reg_id& instSource() const; + const reg_id& instDestination() const; + size_t instAccumulatorBitsModified() const; + +private: + std::unique_ptr<Instruction> m_instruction; + std::unique_ptr<ParallelMove> m_parallelMove; + + uint16_t m_word0; + //uint16_t m_word1; + + std::string dcString() const; +}; + +} +#endif |