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