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/*
* Toshiba TX79-specific instructions translation routines
*
* Copyright (c) 2018 Fredrik Noring
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "tcg/tcg-op.h"
#include "exec/helper-gen.h"
#include "translate.h"
/* Include the auto-generated decoder. */
#include "decode-tx79.c.inc"
bool decode_ext_tx79(DisasContext *ctx, uint32_t insn)
{
if (TARGET_LONG_BITS == 64 && decode_tx79(ctx, insn)) {
return true;
}
return false;
}
static bool trans_MFHI1(DisasContext *ctx, arg_rtype *a)
{
gen_store_gpr(cpu_HI[1], a->rd);
return true;
}
static bool trans_MFLO1(DisasContext *ctx, arg_rtype *a)
{
gen_store_gpr(cpu_LO[1], a->rd);
return true;
}
static bool trans_MTHI1(DisasContext *ctx, arg_rtype *a)
{
gen_load_gpr(cpu_HI[1], a->rs);
return true;
}
static bool trans_MTLO1(DisasContext *ctx, arg_rtype *a)
{
gen_load_gpr(cpu_LO[1], a->rs);
return true;
}
/* Parallel Copy Halfword */
static bool trans_PCPYH(DisasContext *s, arg_rtype *a)
{
if (a->rd == 0) {
/* nop */
return true;
}
if (a->rt == 0) {
tcg_gen_movi_i64(cpu_gpr[a->rd], 0);
tcg_gen_movi_i64(cpu_gpr_hi[a->rd], 0);
return true;
}
tcg_gen_deposit_i64(cpu_gpr[a->rd], cpu_gpr[a->rt], cpu_gpr[a->rt], 16, 16);
tcg_gen_deposit_i64(cpu_gpr[a->rd], cpu_gpr[a->rd], cpu_gpr[a->rd], 32, 32);
tcg_gen_deposit_i64(cpu_gpr_hi[a->rd], cpu_gpr_hi[a->rt], cpu_gpr_hi[a->rt], 16, 16);
tcg_gen_deposit_i64(cpu_gpr_hi[a->rd], cpu_gpr_hi[a->rd], cpu_gpr_hi[a->rd], 32, 32);
return true;
}
/* Parallel Copy Lower Doubleword */
static bool trans_PCPYLD(DisasContext *s, arg_rtype *a)
{
if (a->rd == 0) {
/* nop */
return true;
}
if (a->rs == 0) {
tcg_gen_movi_i64(cpu_gpr_hi[a->rd], 0);
} else {
tcg_gen_mov_i64(cpu_gpr_hi[a->rd], cpu_gpr[a->rs]);
}
if (a->rt == 0) {
tcg_gen_movi_i64(cpu_gpr[a->rd], 0);
} else if (a->rd != a->rt) {
tcg_gen_mov_i64(cpu_gpr[a->rd], cpu_gpr[a->rt]);
}
return true;
}
/* Parallel Copy Upper Doubleword */
static bool trans_PCPYUD(DisasContext *s, arg_rtype *a)
{
if (a->rd == 0) {
/* nop */
return true;
}
gen_load_gpr_hi(cpu_gpr[a->rd], a->rs);
if (a->rt == 0) {
tcg_gen_movi_i64(cpu_gpr_hi[a->rd], 0);
} else if (a->rd != a->rt) {
tcg_gen_mov_i64(cpu_gpr_hi[a->rd], cpu_gpr_hi[a->rt]);
}
return true;
}
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