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// license:BSD-3-Clause
// copyright-holders:Aaron Giles
/***************************************************************************
drcbec.h
Interpreted C core back-end for the universal machine language.
***************************************************************************/
#pragma once
#ifndef __DRCBEC_H__
#define __DRCBEC_H__
#include "drcuml.h"
#include "drcbeut.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
union drcbec_instruction;
class drcbe_c : public drcbe_interface
{
public:
// construction/destruction
drcbe_c(drcuml_state &drcuml, device_t &device, drc_cache &cache, UINT32 flags, int modes, int addrbits, int ignorebits);
virtual ~drcbe_c();
// required overrides
virtual void reset() override;
virtual int execute(uml::code_handle &entry) override;
virtual void generate(drcuml_block &block, const uml::instruction *instlist, UINT32 numinst) override;
virtual bool hash_exists(UINT32 mode, UINT32 pc) override;
virtual void get_info(drcbe_info &info) override;
private:
// helpers
void output_parameter(drcbec_instruction **dstptr, void **immedptr, int size, const uml::parameter ¶m);
void fixup_label(void *parameter, drccodeptr labelcodeptr);
int dmulu(UINT64 &dstlo, UINT64 &dsthi, UINT64 src1, UINT64 src2, int flags);
int dmuls(UINT64 &dstlo, UINT64 &dsthi, INT64 src1, INT64 src2, int flags);
UINT32 tzcount32(UINT32 value);
UINT64 tzcount64(UINT64 value);
// internal state
drc_hash_table m_hash; // hash table state
drc_map_variables m_map; // code map
drc_label_list m_labels; // label list
drc_label_fixup_delegate m_fixup_delegate; // precomputed delegate
static const UINT32 s_condition_map[32];
static UINT64 s_immediate_zero;
};
#endif /* __DRCBEC_H__ */
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