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1d506c26d9
This commit is the result of the following actions: - Running gdb/copyright.py to update all of the copyright headers to include 2024, - Manually updating a few files the copyright.py script told me to update, these files had copyright headers embedded within the file, - Regenerating gdbsupport/Makefile.in to refresh it's copyright date, - Using grep to find other files that still mentioned 2023. If these files were updated last year from 2022 to 2023 then I've updated them this year to 2024. I'm sure I've probably missed some dates. Feel free to fix them up as you spot them.
2672 lines
78 KiB
C
2672 lines
78 KiB
C
/* frv simulator fr550 dependent profiling code.
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Copyright (C) 2003-2024 Free Software Foundation, Inc.
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Contributed by Red Hat
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This must come before any other includes. */
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#include "defs.h"
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#define WANT_CPU
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#define WANT_CPU_FRVBF
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#include "sim-main.h"
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#include "bfd.h"
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#if WITH_PROFILE_MODEL_P
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#include "profile.h"
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#include "profile-fr550.h"
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/* Initialize cycle counting for an insn.
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FIRST_P is non-zero if this is the first insn in a set of parallel
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insns. */
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void
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fr550_model_insn_before (SIM_CPU *cpu, int first_p)
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{
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if (first_p)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_fr_load = d->prev_fr_load;
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d->cur_fr_complex_1 = d->prev_fr_complex_1;
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d->cur_fr_complex_2 = d->prev_fr_complex_2;
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d->cur_ccr_complex = d->prev_ccr_complex;
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d->cur_acc_mmac = d->prev_acc_mmac;
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}
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}
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/* Record the cycles computed for an insn.
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LAST_P is non-zero if this is the last insn in a set of parallel insns,
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and we update the total cycle count.
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CYCLES is the cycle count of the insn. */
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void
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fr550_model_insn_after (SIM_CPU *cpu, int last_p, int cycles)
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{
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if (last_p)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->prev_fr_load = d->cur_fr_load;
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d->prev_fr_complex_1 = d->cur_fr_complex_1;
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d->prev_fr_complex_2 = d->cur_fr_complex_2;
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d->prev_ccr_complex = d->cur_ccr_complex;
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d->prev_acc_mmac = d->cur_acc_mmac;
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}
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}
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static void fr550_reset_fr_flags (SIM_CPU *cpu, INT fr);
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static void fr550_reset_ccr_flags (SIM_CPU *cpu, INT ccr);
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static void fr550_reset_acc_flags (SIM_CPU *cpu, INT acc);
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static void
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set_use_is_fr_load (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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fr550_reset_fr_flags (cpu, (fr));
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d->cur_fr_load |= (((DI)1) << (fr));
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}
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static void
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set_use_not_fr_load (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_fr_load &= ~(((DI)1) << (fr));
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}
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static int
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use_is_fr_load (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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return d->prev_fr_load & (((DI)1) << (fr));
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}
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static void
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set_use_is_fr_complex_1 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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fr550_reset_fr_flags (cpu, (fr));
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d->cur_fr_complex_1 |= (((DI)1) << (fr));
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}
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static void
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set_use_not_fr_complex_1 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_fr_complex_1 &= ~(((DI)1) << (fr));
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}
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static int
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use_is_fr_complex_1 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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return d->prev_fr_complex_1 & (((DI)1) << (fr));
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}
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static void
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set_use_is_fr_complex_2 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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fr550_reset_fr_flags (cpu, (fr));
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d->cur_fr_complex_2 |= (((DI)1) << (fr));
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}
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static void
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set_use_not_fr_complex_2 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_fr_complex_2 &= ~(((DI)1) << (fr));
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}
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static int
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use_is_fr_complex_2 (SIM_CPU *cpu, INT fr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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return d->prev_fr_complex_2 & (((DI)1) << (fr));
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}
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static void
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set_use_is_ccr_complex (SIM_CPU *cpu, INT ccr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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fr550_reset_ccr_flags (cpu, (ccr));
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d->cur_ccr_complex |= (((SI)1) << (ccr));
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}
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static void
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set_use_not_ccr_complex (SIM_CPU *cpu, INT ccr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_ccr_complex &= ~(((SI)1) << (ccr));
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}
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#if 0
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static int
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use_is_ccr_complex (SIM_CPU *cpu, INT ccr)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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return d->prev_ccr_complex & (((SI)1) << (ccr));
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}
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#endif
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static void
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set_use_is_acc_mmac (SIM_CPU *cpu, INT acc)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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fr550_reset_acc_flags (cpu, (acc));
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d->cur_acc_mmac |= (((DI)1) << (acc));
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}
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static void
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set_use_not_acc_mmac (SIM_CPU *cpu, INT acc)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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d->cur_acc_mmac &= ~(((DI)1) << (acc));
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}
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static int
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use_is_acc_mmac (SIM_CPU *cpu, INT acc)
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{
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MODEL_FR550_DATA *d = CPU_MODEL_DATA (cpu);
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return d->prev_acc_mmac & (((DI)1) << (acc));
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}
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static void
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fr550_reset_fr_flags (SIM_CPU *cpu, INT fr)
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{
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set_use_not_fr_load (cpu, fr);
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set_use_not_fr_complex_1 (cpu, fr);
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set_use_not_fr_complex_2 (cpu, fr);
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}
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static void
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fr550_reset_ccr_flags (SIM_CPU *cpu, INT ccr)
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{
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set_use_not_ccr_complex (cpu, ccr);
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}
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static void
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fr550_reset_acc_flags (SIM_CPU *cpu, INT acc)
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{
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set_use_not_acc_mmac (cpu, acc);
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}
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/* Detect overlap between two register ranges. Works if one of the registers
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is -1 with width 1 (i.e. undefined), but not both. */
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#define REG_OVERLAP(r1, w1, r2, w2) ( \
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(r1) + (w1) - 1 >= (r2) && (r2) + (w2) - 1 >= (r1) \
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)
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/* Latency of floating point registers may be less than recorded when followed
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by another floating point insn. */
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static void
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adjust_float_register_busy (SIM_CPU *cpu,
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INT in_FRi, int iwidth,
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INT in_FRj, int jwidth,
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INT out_FRk, int kwidth)
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{
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int i;
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/* The latency of FRk may be less than previously recorded.
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See Table 14-15 in the LSI. */
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if (in_FRi >= 0)
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{
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for (i = 0; i < iwidth; ++i)
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{
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if (! REG_OVERLAP (in_FRi + i, 1, out_FRk, kwidth))
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{
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if (use_is_fr_load (cpu, in_FRi + i))
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decrease_FR_busy (cpu, in_FRi + i, 1);
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else
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enforce_full_fr_latency (cpu, in_FRi + i);
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}
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}
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}
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if (in_FRj >= 0)
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{
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for (i = 0; i < jwidth; ++i)
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{
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if (! REG_OVERLAP (in_FRj + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (in_FRj + i, 1, out_FRk, kwidth))
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{
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if (use_is_fr_load (cpu, in_FRj + i))
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decrease_FR_busy (cpu, in_FRj + i, 1);
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else
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enforce_full_fr_latency (cpu, in_FRj + i);
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}
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}
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}
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if (out_FRk >= 0)
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{
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for (i = 0; i < kwidth; ++i)
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{
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if (! REG_OVERLAP (out_FRk + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (out_FRk + i, 1, in_FRj, jwidth))
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{
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if (use_is_fr_complex_1 (cpu, out_FRk + i))
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decrease_FR_busy (cpu, out_FRk + i, 1);
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else if (use_is_fr_complex_2 (cpu, out_FRk + i))
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decrease_FR_busy (cpu, out_FRk + i, 2);
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else
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enforce_full_fr_latency (cpu, out_FRk + i);
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}
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}
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}
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}
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static void
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restore_float_register_busy (SIM_CPU *cpu,
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INT in_FRi, int iwidth,
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INT in_FRj, int jwidth,
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INT out_FRk, int kwidth)
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{
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int i;
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/* The latency of FRk may be less than previously recorded.
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See Table 14-15 in the LSI. */
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if (in_FRi >= 0)
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{
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for (i = 0; i < iwidth; ++i)
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{
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if (! REG_OVERLAP (in_FRi + i, 1, out_FRk, kwidth))
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if (use_is_fr_load (cpu, in_FRi + i))
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increase_FR_busy (cpu, in_FRi + i, 1);
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}
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}
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if (in_FRj >= 0)
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{
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for (i = 0; i < jwidth; ++i)
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{
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if (! REG_OVERLAP (in_FRj + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (in_FRj + i, 1, out_FRk, kwidth))
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if (use_is_fr_load (cpu, in_FRj + i))
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increase_FR_busy (cpu, in_FRj + i, 1);
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}
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}
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if (out_FRk >= 0)
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{
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for (i = 0; i < kwidth; ++i)
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{
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if (! REG_OVERLAP (out_FRk + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (out_FRk + i, 1, in_FRj, jwidth))
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{
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if (use_is_fr_complex_1 (cpu, out_FRk + i))
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increase_FR_busy (cpu, out_FRk + i, 1);
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else if (use_is_fr_complex_2 (cpu, out_FRk + i))
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increase_FR_busy (cpu, out_FRk + i, 2);
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}
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}
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}
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}
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/* Latency of floating point registers may be less than recorded when used in a
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media insns and followed by another media insn. */
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static void
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adjust_float_register_busy_for_media (SIM_CPU *cpu,
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INT in_FRi, int iwidth,
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INT in_FRj, int jwidth,
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INT out_FRk, int kwidth)
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{
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int i;
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/* The latency of FRk may be less than previously recorded.
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See Table 14-15 in the LSI. */
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if (out_FRk >= 0)
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{
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for (i = 0; i < kwidth; ++i)
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{
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if (! REG_OVERLAP (out_FRk + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (out_FRk + i, 1, in_FRj, jwidth))
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{
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if (use_is_fr_complex_1 (cpu, out_FRk + i))
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decrease_FR_busy (cpu, out_FRk + i, 1);
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else
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enforce_full_fr_latency (cpu, out_FRk + i);
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}
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}
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}
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}
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static void
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restore_float_register_busy_for_media (SIM_CPU *cpu,
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INT in_FRi, int iwidth,
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INT in_FRj, int jwidth,
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INT out_FRk, int kwidth)
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{
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int i;
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if (out_FRk >= 0)
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{
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for (i = 0; i < kwidth; ++i)
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{
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if (! REG_OVERLAP (out_FRk + i, 1, in_FRi, iwidth)
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&& ! REG_OVERLAP (out_FRk + i, 1, in_FRj, jwidth))
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{
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if (use_is_fr_complex_1 (cpu, out_FRk + i))
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increase_FR_busy (cpu, out_FRk + i, 1);
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}
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}
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}
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}
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/* Latency of accumulator registers may be less than recorded when used in a
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media insns and followed by another media insn. */
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static void
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adjust_acc_busy_for_mmac (SIM_CPU *cpu,
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INT in_ACC, int inwidth,
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INT out_ACC, int outwidth)
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{
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int i;
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/* The latency of an accumulator may be less than previously recorded.
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See Table 14-15 in the LSI. */
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if (in_ACC >= 0)
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{
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for (i = 0; i < inwidth; ++i)
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{
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if (use_is_acc_mmac (cpu, in_ACC + i))
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decrease_ACC_busy (cpu, in_ACC + i, 1);
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else
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enforce_full_acc_latency (cpu, in_ACC + i);
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}
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}
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if (out_ACC >= 0)
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{
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for (i = 0; i < outwidth; ++i)
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{
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if (! REG_OVERLAP (out_ACC + i, 1, in_ACC, inwidth))
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{
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if (use_is_acc_mmac (cpu, out_ACC + i))
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decrease_ACC_busy (cpu, out_ACC + i, 1);
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else
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enforce_full_acc_latency (cpu, out_ACC + i);
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}
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}
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}
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}
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static void
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restore_acc_busy_for_mmac (SIM_CPU *cpu,
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INT in_ACC, int inwidth,
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INT out_ACC, int outwidth)
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{
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int i;
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if (in_ACC >= 0)
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{
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for (i = 0; i < inwidth; ++i)
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{
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if (use_is_acc_mmac (cpu, in_ACC + i))
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increase_ACC_busy (cpu, in_ACC + i, 1);
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}
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}
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if (out_ACC >= 0)
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{
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for (i = 0; i < outwidth; ++i)
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{
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if (! REG_OVERLAP (out_ACC + i, 1, in_ACC, inwidth))
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{
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if (use_is_acc_mmac (cpu, out_ACC + i))
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increase_ACC_busy (cpu, out_ACC + i, 1);
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}
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}
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}
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}
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int
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frvbf_model_fr550_u_exec (SIM_CPU *cpu, const IDESC *idesc,
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int unit_num, int referenced)
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{
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return idesc->timing->units[unit_num].done;
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}
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int
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frvbf_model_fr550_u_integer (SIM_CPU *cpu, const IDESC *idesc,
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int unit_num, int referenced,
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INT in_GRi, INT in_GRj, INT out_GRk,
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INT out_ICCi_1)
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{
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int cycles;
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/* icc0-icc4 are the upper 4 fields of the CCR. */
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if (out_ICCi_1 >= 0)
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out_ICCi_1 += 4;
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if (model_insn == FRV_INSN_MODEL_PASS_1)
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{
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/* The entire VLIW insn must wait if there is a dependency on a register
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which is not ready yet. */
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vliw_wait_for_GR (cpu, in_GRi);
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vliw_wait_for_GR (cpu, in_GRj);
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vliw_wait_for_GR (cpu, out_GRk);
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vliw_wait_for_CCR (cpu, out_ICCi_1);
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handle_resource_wait (cpu);
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load_wait_for_GR (cpu, in_GRi);
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load_wait_for_GR (cpu, in_GRj);
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load_wait_for_GR (cpu, out_GRk);
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trace_vliw_wait_cycles (cpu);
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return 0;
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}
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fr550_reset_ccr_flags (cpu, out_ICCi_1);
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/* GRk is available immediately to the next VLIW insn as is ICCi_1. */
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cycles = idesc->timing->units[unit_num].done;
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return cycles;
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}
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int
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frvbf_model_fr550_u_imul (SIM_CPU *cpu, const IDESC *idesc,
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int unit_num, int referenced,
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INT in_GRi, INT in_GRj, INT out_GRk, INT out_ICCi_1)
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{
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int cycles;
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/* icc0-icc4 are the upper 4 fields of the CCR. */
|
|
if (out_ICCi_1 >= 0)
|
|
out_ICCi_1 += 4;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_GRdouble (cpu, out_GRk);
|
|
vliw_wait_for_CCR (cpu, out_ICCi_1);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_GRdouble (cpu, out_GRk);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* GRk has a latency of 1 cycles. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
update_GRdouble_latency (cpu, out_GRk, cycles + 1);
|
|
|
|
/* ICCi_1 has a latency of 1 cycle. */
|
|
update_CCR_latency (cpu, out_ICCi_1, cycles + 1);
|
|
|
|
fr550_reset_ccr_flags (cpu, out_ICCi_1);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_idiv (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj, INT out_GRk, INT out_ICCi_1)
|
|
{
|
|
int cycles;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
/* icc0-icc4 are the upper 4 fields of the CCR. */
|
|
if (out_ICCi_1 >= 0)
|
|
out_ICCi_1 += 4;
|
|
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_I0;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_GR (cpu, out_GRk);
|
|
vliw_wait_for_CCR (cpu, out_ICCi_1);
|
|
vliw_wait_for_idiv_resource (cpu, slot);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_GR (cpu, out_GRk);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* GRk has a latency of 18 cycles! */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
update_GR_latency (cpu, out_GRk, cycles + 18);
|
|
|
|
/* ICCi_1 has a latency of 18 cycles. */
|
|
update_CCR_latency (cpu, out_ICCi_1, cycles + 18);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* GNER has a latency of 18 cycles. */
|
|
update_SPR_latency (cpu, GNER_FOR_GR (out_GRk), cycles + 18);
|
|
}
|
|
|
|
/* the idiv resource has a latency of 18 cycles! */
|
|
update_idiv_resource_latency (cpu, slot, cycles + 18);
|
|
|
|
fr550_reset_ccr_flags (cpu, out_ICCi_1);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_branch (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT in_ICCi_2, INT in_FCCi_2)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* icc0-icc4 are the upper 4 fields of the CCR. */
|
|
if (in_ICCi_2 >= 0)
|
|
in_ICCi_2 += 4;
|
|
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_CCR (cpu, in_ICCi_2);
|
|
vliw_wait_for_CCR (cpu, in_FCCi_2);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* When counting branches taken or not taken, don't consider branches after
|
|
the first taken branch in a vliw insn. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
if (! ps->vliw_branch_taken)
|
|
{
|
|
/* (1 << 4): The pc is the 5th element in inputs, outputs.
|
|
??? can be cleaned up */
|
|
PROFILE_DATA *p = CPU_PROFILE_DATA (cpu);
|
|
int taken = (referenced & (1 << 4)) != 0;
|
|
if (taken)
|
|
{
|
|
++PROFILE_MODEL_TAKEN_COUNT (p);
|
|
ps->vliw_branch_taken = 1;
|
|
}
|
|
else
|
|
++PROFILE_MODEL_UNTAKEN_COUNT (p);
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_trap (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT in_ICCi_2, INT in_FCCi_2)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* icc0-icc4 are the upper 4 fields of the CCR. */
|
|
if (in_ICCi_2 >= 0)
|
|
in_ICCi_2 += 4;
|
|
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_CCR (cpu, in_ICCi_2);
|
|
vliw_wait_for_CCR (cpu, in_FCCi_2);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_check (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ICCi_3, INT in_FCCi_3)
|
|
{
|
|
/* Modelling for this unit is the same as for fr500. */
|
|
return frvbf_model_fr500_u_check (cpu, idesc, unit_num, referenced,
|
|
in_ICCi_3, in_FCCi_3);
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_set_hilo (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT out_GRkhi, INT out_GRklo)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a GR
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, out_GRkhi);
|
|
vliw_wait_for_GR (cpu, out_GRklo);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, out_GRkhi);
|
|
load_wait_for_GR (cpu, out_GRklo);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* GRk is available immediately to the next VLIW insn. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_gr_load (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT out_GRk, INT out_GRdoublek)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_GR (cpu, out_GRk);
|
|
vliw_wait_for_GRdouble (cpu, out_GRdoublek);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_GR (cpu, out_GRk);
|
|
load_wait_for_GRdouble (cpu, out_GRdoublek);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The latency of GRk for a load will depend on how long it takes to retrieve
|
|
the the data from the cache or memory. */
|
|
update_GR_latency_for_load (cpu, out_GRk, cycles);
|
|
update_GRdouble_latency_for_load (cpu, out_GRdoublek, cycles);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* GNER has a latency of 2 cycles. */
|
|
update_SPR_latency (cpu, GNER_FOR_GR (out_GRk), cycles + 2);
|
|
update_SPR_latency (cpu, GNER_FOR_GR (out_GRdoublek), cycles + 2);
|
|
}
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_gr_store (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT in_GRk, INT in_GRdoublek)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_GR (cpu, in_GRk);
|
|
vliw_wait_for_GRdouble (cpu, in_GRdoublek);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_GR (cpu, in_GRk);
|
|
load_wait_for_GRdouble (cpu, in_GRdoublek);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* The target register is available immediately. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_fr_load (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT out_FRk, INT out_FRdoublek)
|
|
{
|
|
int cycles;
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet.
|
|
The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 13-8 in the LSI. */
|
|
adjust_float_register_busy (cpu, -1, 1, -1, 1, out_FRk, 1);
|
|
adjust_float_register_busy (cpu, -1, 1, -1, 1, out_FRdoublek, 2);
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_FR (cpu, out_FRk);
|
|
vliw_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
vliw_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
vliw_wait_for_SPR (cpu, FNER_FOR_FR (out_FRdoublek));
|
|
}
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_FR (cpu, out_FRk);
|
|
load_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The latency of FRk for a load will depend on how long it takes to retrieve
|
|
the the data from the cache or memory. */
|
|
update_FR_latency_for_load (cpu, out_FRk, cycles);
|
|
update_FRdouble_latency_for_load (cpu, out_FRdoublek, cycles);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* FNER has a latency of 3 cycles. */
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), cycles + 3);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRdoublek), cycles + 3);
|
|
}
|
|
|
|
if (out_FRk >= 0)
|
|
set_use_is_fr_load (cpu, out_FRk);
|
|
if (out_FRdoublek >= 0)
|
|
{
|
|
set_use_is_fr_load (cpu, out_FRdoublek);
|
|
set_use_is_fr_load (cpu, out_FRdoublek + 1);
|
|
}
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_fr_store (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj,
|
|
INT in_FRk, INT in_FRdoublek)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
adjust_float_register_busy (cpu, in_FRk, 1, -1, 1, -1, 1);
|
|
adjust_float_register_busy (cpu, in_FRdoublek, 2, -1, 1, -1, 1);
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_FR (cpu, in_FRk);
|
|
vliw_wait_for_FRdouble (cpu, in_FRdoublek);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_FR (cpu, in_FRk);
|
|
load_wait_for_FRdouble (cpu, in_FRdoublek);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* The target register is available immediately. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_ici (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_invalidate (cpu, CPU_INSN_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_dci (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_invalidate (cpu, CPU_DATA_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_dcf (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_flush (cpu, CPU_DATA_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_icpl (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_preload (cpu, CPU_INSN_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_dcpl (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_preload (cpu, CPU_DATA_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_icul (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_unlock (cpu, CPU_INSN_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_dcul (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
request_cache_unlock (cpu, CPU_DATA_CACHE (cpu), cycles);
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_arith (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT in_FRdoublei, INT in_FRdoublej,
|
|
INT out_FRk, INT out_FRdoublek)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
adjust_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
adjust_float_register_busy (cpu, in_FRdoublei, 2, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublei);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublej);
|
|
post_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRdoublek));
|
|
}
|
|
restore_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
restore_float_register_busy (cpu, in_FRdoublei, 2, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
|
|
/* The latency of FRk will be at least the latency of the other inputs. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FRdouble_latency (cpu, out_FRdoublek, ps->post_wait);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRdoublek), ps->post_wait);
|
|
}
|
|
|
|
/* Once initiated, post-processing will take 2 cycles. */
|
|
update_FR_ptime (cpu, out_FRk, 2);
|
|
update_FRdouble_ptime (cpu, out_FRdoublek, 2);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRk), 2);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRdoublek), 2);
|
|
}
|
|
|
|
/* Mark this use of the register as a floating point op. */
|
|
if (out_FRk >= 0)
|
|
set_use_is_fr_complex_2 (cpu, out_FRk);
|
|
if (out_FRdoublek >= 0)
|
|
{
|
|
set_use_is_fr_complex_2 (cpu, out_FRdoublek);
|
|
if (out_FRdoublek < 63)
|
|
set_use_is_fr_complex_2 (cpu, out_FRdoublek + 1);
|
|
}
|
|
|
|
/* the media point unit resource has a latency of 4 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 4);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_dual_arith (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT in_FRdoublei, INT in_FRdoublej,
|
|
INT out_FRk, INT out_FRdoublek)
|
|
{
|
|
int cycles;
|
|
INT dual_FRi;
|
|
INT dual_FRj;
|
|
INT dual_FRk;
|
|
INT dual_FRdoublei;
|
|
INT dual_FRdoublej;
|
|
INT dual_FRdoublek;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
dual_FRi = DUAL_REG (in_FRi);
|
|
dual_FRj = DUAL_REG (in_FRj);
|
|
dual_FRk = DUAL_REG (out_FRk);
|
|
dual_FRdoublei = DUAL_DOUBLE (in_FRdoublei);
|
|
dual_FRdoublej = DUAL_DOUBLE (in_FRdoublej);
|
|
dual_FRdoublek = DUAL_DOUBLE (out_FRdoublek);
|
|
|
|
adjust_float_register_busy (cpu, in_FRi, 2, in_FRj, 2, out_FRk, 2);
|
|
adjust_float_register_busy (cpu, in_FRdoublei, 4, in_FRdoublej, 4, out_FRdoublek, 4);
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FR (cpu, dual_FRi);
|
|
post_wait_for_FR (cpu, dual_FRj);
|
|
post_wait_for_FR (cpu, dual_FRk);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublei);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublej);
|
|
post_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
post_wait_for_FRdouble (cpu, dual_FRdoublei);
|
|
post_wait_for_FRdouble (cpu, dual_FRdoublej);
|
|
post_wait_for_FRdouble (cpu, dual_FRdoublek);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (dual_FRk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRdoublek));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (dual_FRdoublek));
|
|
}
|
|
restore_float_register_busy (cpu, in_FRi, 2, in_FRj, 2, out_FRk, 2);
|
|
restore_float_register_busy (cpu, in_FRdoublei, 4, in_FRdoublej, 4, out_FRdoublek, 4);
|
|
|
|
/* The latency of FRk will be at least the latency of the other inputs. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_latency (cpu, dual_FRk, ps->post_wait);
|
|
update_FRdouble_latency (cpu, out_FRdoublek, ps->post_wait);
|
|
update_FRdouble_latency (cpu, dual_FRdoublek, ps->post_wait);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (dual_FRk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRdoublek), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (dual_FRdoublek), ps->post_wait);
|
|
}
|
|
|
|
/* Once initiated, post-processing will take 3 cycles. */
|
|
update_FR_ptime (cpu, out_FRk, 3);
|
|
update_FR_ptime (cpu, dual_FRk, 3);
|
|
update_FRdouble_ptime (cpu, out_FRdoublek, 3);
|
|
update_FRdouble_ptime (cpu, dual_FRdoublek, 3);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRk), 3);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (dual_FRk), 3);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRdoublek), 3);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (dual_FRdoublek), 3);
|
|
}
|
|
|
|
/* Mark this use of the register as a floating point op. */
|
|
if (out_FRk >= 0)
|
|
fr550_reset_fr_flags (cpu, out_FRk);
|
|
if (dual_FRk >= 0)
|
|
fr550_reset_fr_flags (cpu, dual_FRk);
|
|
if (out_FRdoublek >= 0)
|
|
{
|
|
fr550_reset_fr_flags (cpu, out_FRdoublek);
|
|
if (out_FRdoublek < 63)
|
|
fr550_reset_fr_flags (cpu, out_FRdoublek + 1);
|
|
}
|
|
if (dual_FRdoublek >= 0)
|
|
{
|
|
fr550_reset_fr_flags (cpu, dual_FRdoublek);
|
|
if (dual_FRdoublek < 63)
|
|
fr550_reset_fr_flags (cpu, dual_FRdoublek + 1);
|
|
}
|
|
|
|
/* the media point unit resource has a latency of 5 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 5);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_div (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
FRV_PROFILE_STATE *ps;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
adjust_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_fdiv (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
restore_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
|
|
/* The latency of FRk will be at least the latency of the other inputs. */
|
|
/* Once initiated, post-processing will take 9 cycles. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 9);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* FNER has a latency of 9 cycles. */
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), ps->post_wait);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRk), 9);
|
|
}
|
|
|
|
/* The latency of the fdiv unit will be at least the latency of the other
|
|
inputs. Once initiated, post-processing will take 9 cycles. */
|
|
update_fdiv_resource_latency (cpu, slot, ps->post_wait + 9);
|
|
|
|
/* the media point unit resource has a latency of 11 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 11);
|
|
|
|
fr550_reset_fr_flags (cpu, out_FRk);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_sqrt (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRj, INT in_FRdoublej,
|
|
INT out_FRk, INT out_FRdoublek)
|
|
{
|
|
int cycles;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
FRV_PROFILE_STATE *ps;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_fsqrt (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublej);
|
|
post_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRdoublek));
|
|
}
|
|
restore_float_register_busy (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
restore_float_register_busy (cpu, -1, 1, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
|
|
/* The latency of FRk will be at least the latency of the other inputs. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FRdouble_latency (cpu, out_FRdoublek, ps->post_wait);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* FNER has a latency of 14 cycles. */
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRdoublek), ps->post_wait);
|
|
}
|
|
|
|
/* Once initiated, post-processing will take 14 cycles. */
|
|
update_FR_ptime (cpu, out_FRk, 14);
|
|
update_FRdouble_ptime (cpu, out_FRdoublek, 14);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
/* FNER has a latency of 14 cycles. */
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRk), 14);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRdoublek), 14);
|
|
}
|
|
|
|
/* The latency of the sqrt unit will be the latency of the other
|
|
inputs plus 14 cycles. */
|
|
update_fsqrt_resource_latency (cpu, slot, ps->post_wait + 14);
|
|
|
|
fr550_reset_fr_flags (cpu, out_FRk);
|
|
if (out_FRdoublek != -1)
|
|
{
|
|
fr550_reset_fr_flags (cpu, out_FRdoublek);
|
|
fr550_reset_fr_flags (cpu, out_FRdoublek + 1);
|
|
}
|
|
|
|
/* the media point unit resource has a latency of 16 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 16);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_compare (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT in_FRdoublei, INT in_FRdoublej,
|
|
INT out_FCCi_2)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
adjust_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, -1, 1);
|
|
adjust_float_register_busy (cpu, in_FRdoublei, 2, in_FRdoublej, 2, -1, 1);
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublei);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublej);
|
|
post_wait_for_CCR (cpu, out_FCCi_2);
|
|
restore_float_register_busy (cpu, in_FRi, 1, in_FRj, 1, -1, 1);
|
|
restore_float_register_busy (cpu, in_FRdoublei, 2, in_FRdoublej, 2, -1, 1);
|
|
|
|
/* The latency of FCCi_2 will be the latency of the other inputs plus 2
|
|
cycles. */
|
|
update_CCR_latency (cpu, out_FCCi_2, ps->post_wait + 2);
|
|
|
|
/* the media point unit resource has a latency of 4 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 4);
|
|
|
|
set_use_is_ccr_complex (cpu, out_FCCi_2);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_dual_compare (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT out_FCCi_2)
|
|
{
|
|
int cycles;
|
|
INT dual_FRi;
|
|
INT dual_FRj;
|
|
INT dual_FCCi_2;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
dual_FRi = DUAL_REG (in_FRi);
|
|
dual_FRj = DUAL_REG (in_FRj);
|
|
dual_FCCi_2 = out_FCCi_2 + 1;
|
|
adjust_float_register_busy (cpu, in_FRi, 2, in_FRj, 2, -1, 1);
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, dual_FRi);
|
|
post_wait_for_FR (cpu, dual_FRj);
|
|
post_wait_for_CCR (cpu, out_FCCi_2);
|
|
post_wait_for_CCR (cpu, dual_FCCi_2);
|
|
restore_float_register_busy (cpu, in_FRi, 2, in_FRj, 2, -1, 1);
|
|
|
|
/* The latency of FCCi_2 will be the latency of the other inputs plus 3
|
|
cycles. */
|
|
update_CCR_latency (cpu, out_FCCi_2, ps->post_wait + 3);
|
|
update_CCR_latency (cpu, dual_FCCi_2, ps->post_wait + 3);
|
|
|
|
set_use_is_ccr_complex (cpu, out_FCCi_2);
|
|
if (dual_FCCi_2 >= 0)
|
|
set_use_is_ccr_complex (cpu, dual_FCCi_2);
|
|
|
|
/* the media point unit resource has a latency of 5 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 5);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_float_convert (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRj, INT in_FRintj, INT in_FRdoublej,
|
|
INT out_FRk, INT out_FRintk,
|
|
INT out_FRdoublek)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRintj, 1, out_FRintk, 1);
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_float (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, in_FRintj);
|
|
post_wait_for_FRdouble (cpu, in_FRdoublej);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FR (cpu, out_FRintk);
|
|
post_wait_for_FRdouble (cpu, out_FRdoublek);
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRintk));
|
|
post_wait_for_SPR (cpu, FNER_FOR_FR (out_FRdoublek));
|
|
}
|
|
restore_float_register_busy (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
restore_float_register_busy (cpu, -1, 1, in_FRintj, 1, out_FRintk, 1);
|
|
restore_float_register_busy (cpu, -1, 1, in_FRdoublej, 2, out_FRdoublek, 2);
|
|
|
|
/* The latency of FRk will be at least the latency of the other inputs. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_latency (cpu, out_FRintk, ps->post_wait);
|
|
update_FRdouble_latency (cpu, out_FRdoublek, ps->post_wait);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRintk), ps->post_wait);
|
|
update_SPR_latency (cpu, FNER_FOR_FR (out_FRdoublek), ps->post_wait);
|
|
}
|
|
|
|
/* Once initiated, post-processing will take 2 cycles. */
|
|
update_FR_ptime (cpu, out_FRk, 2);
|
|
update_FR_ptime (cpu, out_FRintk, 2);
|
|
update_FRdouble_ptime (cpu, out_FRdoublek, 2);
|
|
|
|
if (CGEN_ATTR_VALUE(idesc, idesc->attrs, CGEN_INSN_NON_EXCEPTING))
|
|
{
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRk), 2);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRintk), 2);
|
|
update_SPR_ptime (cpu, FNER_FOR_FR (out_FRdoublek), 2);
|
|
}
|
|
|
|
/* Mark this use of the register as a floating point op. */
|
|
if (out_FRk >= 0)
|
|
set_use_is_fr_complex_2 (cpu, out_FRk);
|
|
if (out_FRintk >= 0)
|
|
set_use_is_fr_complex_2 (cpu, out_FRintk);
|
|
if (out_FRdoublek >= 0)
|
|
{
|
|
set_use_is_fr_complex_2 (cpu, out_FRdoublek);
|
|
set_use_is_fr_complex_2 (cpu, out_FRdoublek + 1);
|
|
}
|
|
|
|
/* the media point unit resource has a latency of 4 cycles */
|
|
update_media_resource_latency (cpu, slot, cycles + 4);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_spr2gr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_spr, INT out_GRj)
|
|
{
|
|
/* Modelling for this unit is the same as for fr500. */
|
|
return frvbf_model_fr500_u_spr2gr (cpu, idesc, unit_num, referenced,
|
|
in_spr, out_GRj);
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_gr2spr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRj, INT out_spr)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_SPR (cpu, out_spr);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
#if 0
|
|
/* The latency of spr is ? cycles. */
|
|
update_SPR_latency (cpu, out_spr, cycles + ?);
|
|
#endif
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_gr2fr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRj, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet.
|
|
The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy (cpu, -1, 1, -1, 1, out_FRk, 1);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_FR (cpu, out_FRk);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_FR (cpu, out_FRk);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* The latency of FRk is 1 cycles. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
update_FR_latency (cpu, out_FRk, cycles + 1);
|
|
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_swap (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRi, INT in_GRj, INT out_GRk)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
vliw_wait_for_GR (cpu, in_GRi);
|
|
vliw_wait_for_GR (cpu, in_GRj);
|
|
vliw_wait_for_GR (cpu, out_GRk);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_GR (cpu, in_GRi);
|
|
load_wait_for_GR (cpu, in_GRj);
|
|
load_wait_for_GR (cpu, out_GRk);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* The latency of GRk will depend on how long it takes to swap
|
|
the the data from the cache or memory. */
|
|
update_GR_latency_for_swap (cpu, out_GRk, cycles);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_fr2fr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRj, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet.
|
|
The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
vliw_wait_for_FR (cpu, in_FRj);
|
|
vliw_wait_for_FR (cpu, out_FRk);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_FR (cpu, in_FRj);
|
|
load_wait_for_FR (cpu, out_FRk);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* The latency of FRj is 2 cycles. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
update_FR_latency (cpu, out_FRk, cycles + 2);
|
|
|
|
set_use_is_fr_complex_2 (cpu, out_FRk);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_fr2gr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRk, INT out_GRj)
|
|
{
|
|
int cycles;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
{
|
|
/* The entire VLIW insn must wait if there is a dependency on a register
|
|
which is not ready yet.
|
|
The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy (cpu, in_FRk, 1, -1, 1, -1, 1);
|
|
vliw_wait_for_FR (cpu, in_FRk);
|
|
vliw_wait_for_GR (cpu, out_GRj);
|
|
handle_resource_wait (cpu);
|
|
load_wait_for_FR (cpu, in_FRk);
|
|
load_wait_for_GR (cpu, out_GRj);
|
|
trace_vliw_wait_cycles (cpu);
|
|
return 0;
|
|
}
|
|
|
|
/* The latency of GRj is 1 cycle. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
update_GR_latency (cpu, out_GRj, cycles + 1);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_clrgr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRk)
|
|
{
|
|
/* Modelling for this unit is the same as for fr500. */
|
|
return frvbf_model_fr500_u_clrgr (cpu, idesc, unit_num, referenced, in_GRk);
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_clrfr (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRk)
|
|
{
|
|
/* Modelling for this unit is the same as for fr500. */
|
|
return frvbf_model_fr500_u_clrfr (cpu, idesc, unit_num, referenced, in_FRk);
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_commit (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_GRk, INT in_FRk)
|
|
{
|
|
/* Modelling for this unit is the same as for fr500. */
|
|
return frvbf_model_fr500_u_commit (cpu, idesc, unit_num, referenced,
|
|
in_GRk, in_FRk);
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* If the previous use of the registers was a media op,
|
|
then their latency may be less than previously recorded.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 1, in_FRj, 1, out_FRk, 1);
|
|
|
|
/* The latency of tht output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
if (out_FRk >= 0)
|
|
{
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
/* Mark this use of the register as a media op. */
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_quad (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT out_FRk)
|
|
{
|
|
int cycles;
|
|
INT dual_FRi;
|
|
INT dual_FRj;
|
|
INT dual_FRk;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
dual_FRi = DUAL_REG (in_FRi);
|
|
dual_FRj = DUAL_REG (in_FRj);
|
|
dual_FRk = DUAL_REG (out_FRk);
|
|
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 2, in_FRj, 2, out_FRk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, dual_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, dual_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FR (cpu, dual_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 2, in_FRj, 2, out_FRk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing take 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
|
|
if (dual_FRk >= 0)
|
|
{
|
|
update_FR_latency (cpu, dual_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, dual_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, dual_FRk);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_dual_expand (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
INT dual_FRk;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* If the previous use of the registers was a media op,
|
|
then their latency will be less than previously recorded.
|
|
See Table 14-15 in the LSI. */
|
|
dual_FRk = DUAL_REG (out_FRk);
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 1, -1, 1, out_FRk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FR (cpu, dual_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 1, -1, 1, out_FRk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
|
|
if (dual_FRk >= 0)
|
|
{
|
|
update_FR_latency (cpu, dual_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, dual_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, dual_FRk);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_3_dual (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
INT dual_FRi;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
dual_FRi = DUAL_REG (in_FRi);
|
|
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 2, -1, 1, out_FRk, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, dual_FRi);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 2, -1, 1, out_FRk, 1);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing takes 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_3_acc (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRj, INT in_ACC40Si,
|
|
INT out_FRk)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* If the previous use of the registers was a media op,
|
|
then their latency will be less than previously recorded.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, -1, 1, in_FRj, 1, out_FRk, 1);
|
|
|
|
/* The latency of tht output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_3_acc_dual (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ACC40Si, INT out_FRk)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
INT ACC40Si_1;
|
|
INT dual_FRk;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ACC40Si_1 = DUAL_REG (in_ACC40Si);
|
|
dual_FRk = DUAL_REG (out_FRk);
|
|
|
|
/* If the previous use of the registers was a media op,
|
|
then their latency will be less than previously recorded.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, -1, 1, -1, 1, out_FRk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
post_wait_for_ACC (cpu, ACC40Si_1);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
post_wait_for_FR (cpu, dual_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, -1, 1, -1, 1, out_FRk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, out_FRk);
|
|
if (dual_FRk >= 0)
|
|
{
|
|
update_FR_latency (cpu, dual_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, dual_FRk, 1);
|
|
set_use_is_fr_complex_1 (cpu, dual_FRk);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_3_wtacc (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT out_ACC40Sk)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 1, -1, 1, -1, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 1, -1, 1, -1, 1);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait);
|
|
update_ACC_ptime (cpu, out_ACC40Sk, 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_3_mclracc (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
int i;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
|
|
/* If A was 1 and the accumulator was ACC0, then we must check all
|
|
accumulators. Otherwise just wait for the specified accumulator. */
|
|
if (ps->mclracc_A && ps->mclracc_acc == 0)
|
|
{
|
|
for (i = 0; i < 8; ++i)
|
|
post_wait_for_ACC (cpu, i);
|
|
}
|
|
else
|
|
post_wait_for_ACC (cpu, ps->mclracc_acc);
|
|
|
|
/* The latency of the output registers will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
if (ps->mclracc_A && ps->mclracc_acc == 0)
|
|
{
|
|
for (i = 0; i < 8; ++i)
|
|
{
|
|
update_ACC_latency (cpu, i, ps->post_wait);
|
|
update_ACC_ptime (cpu, i, 1);
|
|
set_use_is_acc_mmac (cpu, i);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
update_ACC_latency (cpu, ps->mclracc_acc, ps->post_wait);
|
|
update_ACC_ptime (cpu, ps->mclracc_acc, 1);
|
|
set_use_is_acc_mmac (cpu, ps->mclracc_acc);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_set (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT out_FRk)
|
|
{
|
|
int cycles;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
/* If the previous use of the registers was a media op,
|
|
then their latency will be less than previously recorded.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, -1, 1, -1, 1, out_FRk, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, out_FRk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, -1, 1, -1, 1, out_FRk, 1);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing takes 1 cycle. */
|
|
update_FR_latency (cpu, out_FRk, ps->post_wait);
|
|
update_FR_ptime (cpu, out_FRk, 1);
|
|
fr550_reset_acc_flags (cpu, out_FRk);
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4 (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT out_ACC40Sk, INT out_ACC40Uk)
|
|
{
|
|
int cycles;
|
|
INT dual_ACC40Sk;
|
|
INT dual_ACC40Uk;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
dual_ACC40Sk = DUAL_REG (out_ACC40Sk);
|
|
dual_ACC40Uk = DUAL_REG (out_ACC40Uk);
|
|
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Sk, 2);
|
|
adjust_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Uk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
post_wait_for_ACC (cpu, dual_ACC40Sk);
|
|
post_wait_for_ACC (cpu, out_ACC40Uk);
|
|
post_wait_for_ACC (cpu, dual_ACC40Uk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Sk, 2);
|
|
restore_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Uk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycles. */
|
|
if (out_ACC40Sk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
}
|
|
if (dual_ACC40Sk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, dual_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, dual_ACC40Sk);
|
|
}
|
|
if (out_ACC40Uk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, out_ACC40Uk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Uk);
|
|
}
|
|
if (dual_ACC40Uk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, dual_ACC40Uk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, dual_ACC40Uk);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4_acc (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ACC40Si, INT out_ACC40Sk)
|
|
{
|
|
int cycles;
|
|
INT ACC40Si_1;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ACC40Si_1 = DUAL_REG (in_ACC40Si);
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_acc_busy_for_mmac (cpu, in_ACC40Si, 2, out_ACC40Sk, 1);
|
|
|
|
/* The post processing must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
post_wait_for_ACC (cpu, ACC40Si_1);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_acc_busy_for_mmac (cpu, in_ACC40Si, 2, out_ACC40Sk, 1);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4_acc_dual (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ACC40Si, INT out_ACC40Sk)
|
|
{
|
|
int cycles;
|
|
INT ACC40Si_1;
|
|
INT ACC40Si_2;
|
|
INT ACC40Si_3;
|
|
INT ACC40Sk_1;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ACC40Si_1 = DUAL_REG (in_ACC40Si);
|
|
ACC40Si_2 = DUAL_REG (ACC40Si_1);
|
|
ACC40Si_3 = DUAL_REG (ACC40Si_2);
|
|
ACC40Sk_1 = DUAL_REG (out_ACC40Sk);
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_acc_busy_for_mmac (cpu, in_ACC40Si, 4, out_ACC40Sk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
post_wait_for_ACC (cpu, ACC40Si_1);
|
|
post_wait_for_ACC (cpu, ACC40Si_2);
|
|
post_wait_for_ACC (cpu, ACC40Si_3);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
post_wait_for_ACC (cpu, ACC40Sk_1);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_acc_busy_for_mmac (cpu, in_ACC40Si, 4, out_ACC40Sk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
if (ACC40Sk_1 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_1, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_1);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4_add_sub (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ACC40Si, INT out_ACC40Sk)
|
|
{
|
|
int cycles;
|
|
INT ACC40Si_1;
|
|
INT ACC40Sk_1;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ACC40Si_1 = DUAL_REG (in_ACC40Si);
|
|
ACC40Sk_1 = DUAL_REG (out_ACC40Sk);
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_acc_busy_for_mmac (cpu, in_ACC40Si, 2, out_ACC40Sk, 2);
|
|
|
|
/* The post processing must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
post_wait_for_ACC (cpu, ACC40Si_1);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
post_wait_for_ACC (cpu, ACC40Sk_1);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_acc_busy_for_mmac (cpu, in_ACC40Si, 2, out_ACC40Sk, 2);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
if (ACC40Sk_1 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_1, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_1);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4_add_sub_dual (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_ACC40Si, INT out_ACC40Sk)
|
|
{
|
|
int cycles;
|
|
INT ACC40Si_1;
|
|
INT ACC40Si_2;
|
|
INT ACC40Si_3;
|
|
INT ACC40Sk_1;
|
|
INT ACC40Sk_2;
|
|
INT ACC40Sk_3;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
ACC40Si_1 = DUAL_REG (in_ACC40Si);
|
|
ACC40Si_2 = DUAL_REG (ACC40Si_1);
|
|
ACC40Si_3 = DUAL_REG (ACC40Si_2);
|
|
ACC40Sk_1 = DUAL_REG (out_ACC40Sk);
|
|
ACC40Sk_2 = DUAL_REG (ACC40Sk_1);
|
|
ACC40Sk_3 = DUAL_REG (ACC40Sk_2);
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_acc_busy_for_mmac (cpu, in_ACC40Si, 4, out_ACC40Sk, 4);
|
|
|
|
/* The post processing must wait if there is a dependency on a register
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_ACC (cpu, in_ACC40Si);
|
|
post_wait_for_ACC (cpu, ACC40Si_1);
|
|
post_wait_for_ACC (cpu, ACC40Si_2);
|
|
post_wait_for_ACC (cpu, ACC40Si_3);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
post_wait_for_ACC (cpu, ACC40Sk_1);
|
|
post_wait_for_ACC (cpu, ACC40Sk_2);
|
|
post_wait_for_ACC (cpu, ACC40Sk_3);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_acc_busy_for_mmac (cpu, in_ACC40Si, 4, out_ACC40Sk, 4);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
if (ACC40Sk_1 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_1, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_1);
|
|
}
|
|
if (ACC40Sk_2 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_2, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_2);
|
|
}
|
|
if (ACC40Sk_3 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_3, ps->post_wait + 1);
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_3);
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
int
|
|
frvbf_model_fr550_u_media_4_quad (SIM_CPU *cpu, const IDESC *idesc,
|
|
int unit_num, int referenced,
|
|
INT in_FRi, INT in_FRj,
|
|
INT out_ACC40Sk, INT out_ACC40Uk)
|
|
{
|
|
int cycles;
|
|
INT dual_FRi;
|
|
INT dual_FRj;
|
|
INT ACC40Sk_1;
|
|
INT ACC40Sk_2;
|
|
INT ACC40Sk_3;
|
|
INT ACC40Uk_1;
|
|
INT ACC40Uk_2;
|
|
INT ACC40Uk_3;
|
|
FRV_PROFILE_STATE *ps;
|
|
FRV_VLIW *vliw;
|
|
int slot;
|
|
|
|
if (model_insn == FRV_INSN_MODEL_PASS_1)
|
|
return 0;
|
|
|
|
/* The preprocessing can execute right away. */
|
|
cycles = idesc->timing->units[unit_num].done;
|
|
|
|
dual_FRi = DUAL_REG (in_FRi);
|
|
dual_FRj = DUAL_REG (in_FRj);
|
|
ACC40Sk_1 = DUAL_REG (out_ACC40Sk);
|
|
ACC40Sk_2 = DUAL_REG (ACC40Sk_1);
|
|
ACC40Sk_3 = DUAL_REG (ACC40Sk_2);
|
|
ACC40Uk_1 = DUAL_REG (out_ACC40Uk);
|
|
ACC40Uk_2 = DUAL_REG (ACC40Uk_1);
|
|
ACC40Uk_3 = DUAL_REG (ACC40Uk_2);
|
|
|
|
ps = CPU_PROFILE_STATE (cpu);
|
|
/* The latency of the registers may be less than previously recorded,
|
|
depending on how they were used previously.
|
|
See Table 14-15 in the LSI. */
|
|
adjust_float_register_busy_for_media (cpu, in_FRi, 2, in_FRj, 2, -1, 1);
|
|
adjust_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Sk, 4);
|
|
adjust_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Uk, 4);
|
|
|
|
/* The post processing must wait if there is a dependency on a FR
|
|
which is not ready yet. */
|
|
ps->post_wait = cycles;
|
|
vliw = CPU_VLIW (cpu);
|
|
slot = vliw->next_slot - 1;
|
|
slot = (*vliw->current_vliw)[slot] - UNIT_FM0;
|
|
post_wait_for_media (cpu, slot);
|
|
post_wait_for_FR (cpu, in_FRi);
|
|
post_wait_for_FR (cpu, dual_FRi);
|
|
post_wait_for_FR (cpu, in_FRj);
|
|
post_wait_for_FR (cpu, dual_FRj);
|
|
post_wait_for_ACC (cpu, out_ACC40Sk);
|
|
post_wait_for_ACC (cpu, ACC40Sk_1);
|
|
post_wait_for_ACC (cpu, ACC40Sk_2);
|
|
post_wait_for_ACC (cpu, ACC40Sk_3);
|
|
post_wait_for_ACC (cpu, out_ACC40Uk);
|
|
post_wait_for_ACC (cpu, ACC40Uk_1);
|
|
post_wait_for_ACC (cpu, ACC40Uk_2);
|
|
post_wait_for_ACC (cpu, ACC40Uk_3);
|
|
|
|
/* Restore the busy cycles of the registers we used. */
|
|
restore_float_register_busy_for_media (cpu, in_FRi, 2, in_FRj, 2, -1, 1);
|
|
restore_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Sk, 4);
|
|
restore_acc_busy_for_mmac (cpu, -1, 1, out_ACC40Uk, 4);
|
|
|
|
/* The latency of the output register will be at least the latency of the
|
|
other inputs. Once initiated, post-processing will take 1 cycle. */
|
|
if (out_ACC40Sk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, out_ACC40Sk, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, out_ACC40Sk);
|
|
if (ACC40Sk_1 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_1, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_1);
|
|
}
|
|
if (ACC40Sk_2 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_2, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_2);
|
|
}
|
|
if (ACC40Sk_3 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Sk_3, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Sk_3);
|
|
}
|
|
}
|
|
else if (out_ACC40Uk >= 0)
|
|
{
|
|
update_ACC_latency (cpu, out_ACC40Uk, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, out_ACC40Uk);
|
|
if (ACC40Uk_1 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Uk_1, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Uk_1);
|
|
}
|
|
if (ACC40Uk_2 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Uk_2, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Uk_2);
|
|
}
|
|
if (ACC40Uk_3 >= 0)
|
|
{
|
|
update_ACC_latency (cpu, ACC40Uk_3, ps->post_wait + 1);
|
|
|
|
set_use_is_acc_mmac (cpu, ACC40Uk_3);
|
|
}
|
|
}
|
|
|
|
/* the floating point unit resource has a latency of 3 cycles */
|
|
update_float_resource_latency (cpu, slot, cycles + 3);
|
|
|
|
return cycles;
|
|
}
|
|
|
|
#endif /* WITH_PROFILE_MODEL_P */
|