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// license:BSD-3-Clause
// copyright-holders:AJR
#ifndef MAME_CPU_XTENSA_XTENSA_HELPER_H
#define MAME_CPU_XTENSA_XTENSA_HELPER_H
#pragma once
class xtensa_helper
{
public:
static const char *const special_regs[256];
static const char *const s_st1_ops[16];
static const char *const s_tlb_ops[16];
static const char *const s_rst2_ops[16];
static const char *const s_rst3_ops[16];
static const char *const s_fp0_ops[16];
static const char *const s_fp1_ops[16];
static const char *const s_lsai_ops[16];
static const char *const s_cache_ops[16];
static const char *const s_lsci_ops[4];
static const char *const s_mac16_ops[4];
static const char *const s_mac16_half[4];
static const char *const s_bz_ops[4];
static const char *const s_bi0_ops[4];
static const int32_t s_b4const[16];
static const uint32_t s_b4constu[16];
static const char *const s_b_ops[16];
static std::string format_imm(uint32_t imm)
{
if (s32(imm) < 0)
{
if (s32(imm < -9))
{
return util::string_format("-0x%X", -imm);
}
else
{
return util::string_format("-%X", -imm);
}
}
else
{
if (imm > 9)
{
return util::string_format("0x%X", imm);
}
else
{
return util::string_format("%X", imm);
}
}
}
static std::string special_reg(uint8_t n, bool wsr)
{
if (n == 226 && !wsr)
return "interrupt";
const char *s = xtensa_helper::special_regs[n];
if (s[0] == '\0')
return util::string_format("s%u", n);
else
return s;
}
};
#endif // MAME_CPU_XTENSA_XTENSA_HELPER_H
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