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/*
* Loongson CSR instructions translation routines
*
* Copyright (c) 2023 Jiaxun Yang <jiaxun.yang@flygoat.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "tcg/tcg-op.h"
#include "tcg/tcg-op-gvec.h"
#include "exec/helper-gen.h"
#include "translate.h"
/* Include the auto-generated decoder. */
#include "decode-lcsr.c.inc"
static bool trans_CPUCFG(DisasContext *ctx, arg_CPUCFG *a)
{
TCGv dest = tcg_temp_new();
TCGv src1 = tcg_temp_new();
gen_load_gpr(src1, a->rs);
gen_helper_lcsr_cpucfg(dest, tcg_env, src1);
gen_store_gpr(dest, a->rd);
return true;
}
#ifndef CONFIG_USER_ONLY
static bool gen_rdcsr(DisasContext *ctx, arg_r *a,
void (*func)(TCGv, TCGv_ptr, TCGv))
{
TCGv dest = tcg_temp_new();
TCGv src1 = tcg_temp_new();
check_cp0_enabled(ctx);
gen_load_gpr(src1, a->rs);
func(dest, tcg_env, src1);
gen_store_gpr(dest, a->rd);
return true;
}
static bool gen_wrcsr(DisasContext *ctx, arg_r *a,
void (*func)(TCGv_ptr, TCGv, TCGv))
{
TCGv val = tcg_temp_new();
TCGv addr = tcg_temp_new();
check_cp0_enabled(ctx);
gen_load_gpr(addr, a->rs);
gen_load_gpr(val, a->rd);
func(tcg_env, addr, val);
return true;
}
TRANS(RDCSR, gen_rdcsr, gen_helper_lcsr_rdcsr)
TRANS(DRDCSR, gen_rdcsr, gen_helper_lcsr_drdcsr)
TRANS(WRCSR, gen_wrcsr, gen_helper_lcsr_wrcsr)
TRANS(DWRCSR, gen_wrcsr, gen_helper_lcsr_dwrcsr)
#else
#define GEN_FALSE_TRANS(name) \
static bool trans_##name(DisasContext *ctx, arg_##name * a) \
{ \
return false; \
}
GEN_FALSE_TRANS(RDCSR)
GEN_FALSE_TRANS(DRDCSR)
GEN_FALSE_TRANS(WRCSR)
GEN_FALSE_TRANS(DWRCSR)
#endif
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