1031 lines
20 KiB
C
1031 lines
20 KiB
C
/* SH5 simulator support code
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Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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Contributed by Red Hat, Inc.
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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 2, or (at your option)
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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 along
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with this program; if not, write to the Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#define WANT_CPU
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#define WANT_CPU_SH64
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#include "sim-main.h"
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#include "sim-fpu.h"
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#include "cgen-mem.h"
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#include "cgen-ops.h"
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#include "gdb/callback.h"
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#include "defs-compact.h"
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#include "bfd.h"
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/* From include/gdb/. */
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#include "gdb/sim-sh.h"
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#define SYS_exit 1
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#define SYS_read 3
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#define SYS_write 4
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#define SYS_open 5
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#define SYS_close 6
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#define SYS_lseek 19
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#define SYS_time 23
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#define SYS_argc 172
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#define SYS_argnlen 173
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#define SYS_argn 174
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IDESC * sh64_idesc_media;
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IDESC * sh64_idesc_compact;
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BI
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sh64_endian (SIM_CPU *current_cpu)
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{
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return (CURRENT_TARGET_BYTE_ORDER == BIG_ENDIAN);
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}
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SF
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sh64_fldi0 (SIM_CPU *current_cpu)
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{
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SF result;
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sim_fpu_to32 (&result, &sim_fpu_zero);
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return result;
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}
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SF
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sh64_fldi1 (SIM_CPU *current_cpu)
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{
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SF result;
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sim_fpu_to32 (&result, &sim_fpu_one);
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return result;
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}
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DF
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sh64_fabsd(SIM_CPU *current_cpu, DF drgh)
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{
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DF result;
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sim_fpu f, fres;
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sim_fpu_64to (&f, drgh);
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sim_fpu_abs (&fres, &f);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fabss(SIM_CPU *current_cpu, SF frgh)
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{
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SF result;
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sim_fpu f, fres;
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sim_fpu_32to (&f, frgh);
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sim_fpu_abs (&fres, &f);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_faddd(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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DF result;
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sim_fpu f1, f2, fres;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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sim_fpu_add (&fres, &f1, &f2);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fadds(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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SF result;
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sim_fpu f1, f2, fres;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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sim_fpu_add (&fres, &f1, &f2);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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BI
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sh64_fcmpeqd(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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sim_fpu f1, f2;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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return sim_fpu_is_eq (&f1, &f2);
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}
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BI
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sh64_fcmpeqs(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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sim_fpu f1, f2;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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return sim_fpu_is_eq (&f1, &f2);
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}
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BI
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sh64_fcmpged(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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sim_fpu f1, f2;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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return sim_fpu_is_ge (&f1, &f2);
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}
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BI
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sh64_fcmpges(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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sim_fpu f1, f2;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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return sim_fpu_is_ge (&f1, &f2);
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}
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BI
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sh64_fcmpgtd(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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sim_fpu f1, f2;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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return sim_fpu_is_gt (&f1, &f2);
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}
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BI
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sh64_fcmpgts(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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sim_fpu f1, f2;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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return sim_fpu_is_gt (&f1, &f2);
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}
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BI
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sh64_fcmpund(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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sim_fpu f1, f2;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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return (sim_fpu_is_nan (&f1) || sim_fpu_is_nan (&f2));
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}
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BI
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sh64_fcmpuns(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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sim_fpu f1, f2;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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return (sim_fpu_is_nan (&f1) || sim_fpu_is_nan (&f2));
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}
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SF
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sh64_fcnvds(SIM_CPU *current_cpu, DF drgh)
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{
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union {
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unsigned long long ll;
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double d;
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} f1;
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union {
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unsigned long l;
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float f;
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} f2;
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f1.ll = drgh;
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f2.f = (float) f1.d;
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return (SF) f2.l;
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}
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DF
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sh64_fcnvsd(SIM_CPU *current_cpu, SF frgh)
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{
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DF result;
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sim_fpu f;
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sim_fpu_32to (&f, frgh);
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sim_fpu_to64 (&result, &f);
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return result;
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}
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DF
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sh64_fdivd(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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DF result;
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sim_fpu f1, f2, fres;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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sim_fpu_div (&fres, &f1, &f2);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fdivs(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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SF result;
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sim_fpu f1, f2, fres;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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sim_fpu_div (&fres, &f1, &f2);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_floatld(SIM_CPU *current_cpu, SF frgh)
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{
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DF result;
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sim_fpu f;
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sim_fpu_i32to (&f, frgh, sim_fpu_round_default);
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sim_fpu_to64 (&result, &f);
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return result;
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}
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SF
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sh64_floatls(SIM_CPU *current_cpu, SF frgh)
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{
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SF result;
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sim_fpu f;
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sim_fpu_i32to (&f, frgh, sim_fpu_round_default);
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sim_fpu_to32 (&result, &f);
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return result;
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}
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DF
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sh64_floatqd(SIM_CPU *current_cpu, DF drgh)
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{
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DF result;
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sim_fpu f;
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sim_fpu_i64to (&f, drgh, sim_fpu_round_default);
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sim_fpu_to64 (&result, &f);
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return result;
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}
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SF
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sh64_floatqs(SIM_CPU *current_cpu, DF drgh)
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{
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SF result;
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sim_fpu f;
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sim_fpu_i64to (&f, drgh, sim_fpu_round_default);
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sim_fpu_to32 (&result, &f);
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return result;
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}
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SF
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sh64_fmacs(SIM_CPU *current_cpu, SF fr0, SF frm, SF frn)
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{
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SF result;
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sim_fpu m1, m2, a1, fres;
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sim_fpu_32to (&m1, fr0);
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sim_fpu_32to (&m2, frm);
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sim_fpu_32to (&a1, frn);
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sim_fpu_mul (&fres, &m1, &m2);
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sim_fpu_add (&fres, &fres, &a1);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_fmuld(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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DF result;
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sim_fpu f1, f2, fres;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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sim_fpu_mul (&fres, &f1, &f2);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fmuls(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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SF result;
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sim_fpu f1, f2, fres;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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sim_fpu_mul (&fres, &f1, &f2);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_fnegd(SIM_CPU *current_cpu, DF drgh)
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{
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DF result;
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sim_fpu f1, f2;
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sim_fpu_64to (&f1, drgh);
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sim_fpu_neg (&f2, &f1);
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sim_fpu_to64 (&result, &f2);
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return result;
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}
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SF
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sh64_fnegs(SIM_CPU *current_cpu, SF frgh)
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{
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SF result;
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sim_fpu f, fres;
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sim_fpu_32to (&f, frgh);
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sim_fpu_neg (&fres, &f);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_fsqrtd(SIM_CPU *current_cpu, DF drgh)
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{
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DF result;
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sim_fpu f, fres;
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sim_fpu_64to (&f, drgh);
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sim_fpu_sqrt (&fres, &f);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fsqrts(SIM_CPU *current_cpu, SF frgh)
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{
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SF result;
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sim_fpu f, fres;
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sim_fpu_32to (&f, frgh);
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sim_fpu_sqrt (&fres, &f);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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DF
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sh64_fsubd(SIM_CPU *current_cpu, DF drg, DF drh)
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{
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DF result;
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sim_fpu f1, f2, fres;
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sim_fpu_64to (&f1, drg);
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sim_fpu_64to (&f2, drh);
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sim_fpu_sub (&fres, &f1, &f2);
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sim_fpu_to64 (&result, &fres);
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return result;
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}
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SF
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sh64_fsubs(SIM_CPU *current_cpu, SF frg, SF frh)
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{
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SF result;
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sim_fpu f1, f2, fres;
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sim_fpu_32to (&f1, frg);
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sim_fpu_32to (&f2, frh);
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sim_fpu_sub (&fres, &f1, &f2);
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sim_fpu_to32 (&result, &fres);
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return result;
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}
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SF
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sh64_ftrcdl(SIM_CPU *current_cpu, DF drgh)
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{
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SI result;
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sim_fpu f;
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sim_fpu_64to (&f, drgh);
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sim_fpu_to32i (&result, &f, sim_fpu_round_zero);
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return (SF) result;
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}
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SF
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sh64_ftrcsl(SIM_CPU *current_cpu, SF frgh)
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{
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SI result;
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sim_fpu f;
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sim_fpu_32to (&f, frgh);
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sim_fpu_to32i (&result, &f, sim_fpu_round_zero);
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return (SF) result;
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}
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DF
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sh64_ftrcdq(SIM_CPU *current_cpu, DF drgh)
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{
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DI result;
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sim_fpu f;
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sim_fpu_64to (&f, drgh);
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sim_fpu_to64i (&result, &f, sim_fpu_round_zero);
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return (DF) result;
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}
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DF
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sh64_ftrcsq(SIM_CPU *current_cpu, SF frgh)
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{
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DI result;
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sim_fpu f;
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sim_fpu_32to (&f, frgh);
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sim_fpu_to64i (&result, &f, sim_fpu_round_zero);
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return (DF) result;
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}
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void
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sh64_ftrvs(SIM_CPU *cpu, unsigned g, unsigned h, unsigned f)
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{
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int i, j;
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for (i = 0; i < 4; i++)
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{
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SF result;
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sim_fpu sum;
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sim_fpu_32to (&sum, 0);
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for (j = 0; j < 4; j++)
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{
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sim_fpu f1, f2, temp;
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sim_fpu_32to (&f1, sh64_h_fr_get (cpu, (g + i) + (j * 4)));
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sim_fpu_32to (&f2, sh64_h_fr_get (cpu, h + j));
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sim_fpu_mul (&temp, &f1, &f2);
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sim_fpu_add (&sum, &sum, &temp);
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}
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sim_fpu_to32 (&result, &sum);
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sh64_h_fr_set (cpu, f + i, result);
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}
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}
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/* Count the number of arguments. */
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static int
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count_argc (cpu)
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SIM_CPU *cpu;
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{
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int i = 0;
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if (! STATE_PROG_ARGV (CPU_STATE (cpu)))
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return -1;
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while (STATE_PROG_ARGV (CPU_STATE (cpu)) [i] != NULL)
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++i;
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return i;
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}
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|
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/* Read a null terminated string from memory, return in a buffer */
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static char *
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fetch_str (current_cpu, pc, addr)
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SIM_CPU *current_cpu;
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PCADDR pc;
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DI addr;
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{
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char *buf;
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int nr = 0;
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while (sim_core_read_1 (current_cpu,
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pc, read_map, addr + nr) != 0)
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nr++;
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buf = NZALLOC (char, nr + 1);
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sim_read (CPU_STATE (current_cpu), addr, buf, nr);
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return buf;
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}
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static void
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trap_handler (SIM_CPU *current_cpu, int shmedia_abi_p, UQI trapnum, PCADDR pc)
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{
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char ch;
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switch (trapnum)
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{
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case 1:
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ch = GET_H_GRC (0);
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sim_io_write_stdout (CPU_STATE (current_cpu), &ch, 1);
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fflush (stdout);
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break;
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case 2:
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sim_engine_halt (CPU_STATE (current_cpu), current_cpu, NULL, pc, sim_stopped, SIM_SIGTRAP);
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break;
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case 34:
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{
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int i;
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int ret_reg = (shmedia_abi_p) ? 2 : 0;
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char *buf;
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DI PARM1 = GET_H_GR ((shmedia_abi_p) ? 3 : 5);
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DI PARM2 = GET_H_GR ((shmedia_abi_p) ? 4 : 6);
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DI PARM3 = GET_H_GR ((shmedia_abi_p) ? 5 : 7);
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|
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switch (GET_H_GR ((shmedia_abi_p) ? 2 : 4))
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{
|
|
case SYS_write:
|
|
buf = zalloc (PARM3);
|
|
sim_read (CPU_STATE (current_cpu), PARM2, buf, PARM3);
|
|
SET_H_GR (ret_reg,
|
|
sim_io_write (CPU_STATE (current_cpu),
|
|
PARM1, buf, PARM3));
|
|
zfree (buf);
|
|
break;
|
|
|
|
case SYS_lseek:
|
|
SET_H_GR (ret_reg,
|
|
sim_io_lseek (CPU_STATE (current_cpu),
|
|
PARM1, PARM2, PARM3));
|
|
break;
|
|
|
|
case SYS_exit:
|
|
sim_engine_halt (CPU_STATE (current_cpu), current_cpu,
|
|
NULL, pc, sim_exited, PARM1);
|
|
break;
|
|
|
|
case SYS_read:
|
|
buf = zalloc (PARM3);
|
|
SET_H_GR (ret_reg,
|
|
sim_io_read (CPU_STATE (current_cpu),
|
|
PARM1, buf, PARM3));
|
|
sim_write (CPU_STATE (current_cpu), PARM2, buf, PARM3);
|
|
zfree (buf);
|
|
break;
|
|
|
|
case SYS_open:
|
|
buf = fetch_str (current_cpu, pc, PARM1);
|
|
SET_H_GR (ret_reg,
|
|
sim_io_open (CPU_STATE (current_cpu),
|
|
buf, PARM2));
|
|
zfree (buf);
|
|
break;
|
|
|
|
case SYS_close:
|
|
SET_H_GR (ret_reg,
|
|
sim_io_close (CPU_STATE (current_cpu), PARM1));
|
|
break;
|
|
|
|
case SYS_time:
|
|
SET_H_GR (ret_reg, time (0));
|
|
break;
|
|
|
|
case SYS_argc:
|
|
SET_H_GR (ret_reg, count_argc (current_cpu));
|
|
break;
|
|
|
|
case SYS_argnlen:
|
|
if (PARM1 < count_argc (current_cpu))
|
|
SET_H_GR (ret_reg,
|
|
strlen (STATE_PROG_ARGV (CPU_STATE (current_cpu)) [PARM1]));
|
|
else
|
|
SET_H_GR (ret_reg, -1);
|
|
break;
|
|
|
|
case SYS_argn:
|
|
if (PARM1 < count_argc (current_cpu))
|
|
{
|
|
/* Include the NULL byte. */
|
|
i = strlen (STATE_PROG_ARGV (CPU_STATE (current_cpu)) [PARM1]) + 1;
|
|
sim_write (CPU_STATE (current_cpu),
|
|
PARM2,
|
|
STATE_PROG_ARGV (CPU_STATE (current_cpu)) [PARM1],
|
|
i);
|
|
|
|
/* Just for good measure. */
|
|
SET_H_GR (ret_reg, i);
|
|
break;
|
|
}
|
|
else
|
|
SET_H_GR (ret_reg, -1);
|
|
break;
|
|
|
|
default:
|
|
SET_H_GR (ret_reg, -1);
|
|
}
|
|
}
|
|
break;
|
|
case 253:
|
|
puts ("pass");
|
|
exit (0);
|
|
case 254:
|
|
puts ("fail");
|
|
exit (1);
|
|
case 0xc3:
|
|
/* fall through. */
|
|
case 255:
|
|
sim_engine_halt (CPU_STATE (current_cpu), current_cpu, NULL, pc, sim_stopped, SIM_SIGTRAP);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void
|
|
sh64_trapa (SIM_CPU *current_cpu, DI rm, PCADDR pc)
|
|
{
|
|
trap_handler (current_cpu, 1, (UQI) rm & 0xff, pc);
|
|
}
|
|
|
|
void
|
|
sh64_compact_trapa (SIM_CPU *current_cpu, UQI trapnum, PCADDR pc)
|
|
{
|
|
int mach_sh5_p;
|
|
|
|
/* If this is an SH5 executable, this is SHcompact code running in
|
|
the SHmedia ABI. */
|
|
|
|
mach_sh5_p =
|
|
(bfd_get_mach (STATE_PROG_BFD (CPU_STATE (current_cpu))) == bfd_mach_sh5);
|
|
|
|
trap_handler (current_cpu, mach_sh5_p, trapnum, pc);
|
|
}
|
|
|
|
DI
|
|
sh64_nsb (SIM_CPU *current_cpu, DI rm)
|
|
{
|
|
int result = 0, count;
|
|
UDI source = (UDI) rm;
|
|
|
|
if ((source >> 63))
|
|
source = ~source;
|
|
source <<= 1;
|
|
|
|
for (count = 32; count; count >>= 1)
|
|
{
|
|
UDI newval = source << count;
|
|
|
|
if ((newval >> count) == source)
|
|
{
|
|
result |= count;
|
|
source = newval;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
sh64_break (SIM_CPU *current_cpu, PCADDR pc)
|
|
{
|
|
SIM_DESC sd = CPU_STATE (current_cpu);
|
|
sim_engine_halt (sd, current_cpu, NULL, pc, sim_stopped, SIM_SIGTRAP);
|
|
}
|
|
|
|
void
|
|
set_isa (SIM_CPU *current_cpu, int mode)
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
/* The semantic code invokes this for invalid (unrecognized) instructions. */
|
|
|
|
SEM_PC
|
|
sim_engine_invalid_insn (SIM_CPU *current_cpu, IADDR cia, SEM_PC vpc)
|
|
{
|
|
SIM_DESC sd = CPU_STATE (current_cpu);
|
|
sim_engine_halt (sd, current_cpu, NULL, cia, sim_stopped, SIM_SIGILL);
|
|
|
|
return vpc;
|
|
}
|
|
|
|
|
|
/* Process an address exception. */
|
|
|
|
void
|
|
sh64_core_signal (SIM_DESC sd, SIM_CPU *current_cpu, sim_cia cia,
|
|
unsigned int map, int nr_bytes, address_word addr,
|
|
transfer_type transfer, sim_core_signals sig)
|
|
{
|
|
sim_core_signal (sd, current_cpu, cia, map, nr_bytes, addr,
|
|
transfer, sig);
|
|
}
|
|
|
|
|
|
/* Initialize cycle counting for an insn.
|
|
FIRST_P is non-zero if this is the first insn in a set of parallel
|
|
insns. */
|
|
|
|
void
|
|
sh64_compact_model_insn_before (SIM_CPU *cpu, int first_p)
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
void
|
|
sh64_media_model_insn_before (SIM_CPU *cpu, int first_p)
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
/* Record the cycles computed for an insn.
|
|
LAST_P is non-zero if this is the last insn in a set of parallel insns,
|
|
and we update the total cycle count.
|
|
CYCLES is the cycle count of the insn. */
|
|
|
|
void
|
|
sh64_compact_model_insn_after(SIM_CPU *cpu, int last_p, int cycles)
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
void
|
|
sh64_media_model_insn_after(SIM_CPU *cpu, int last_p, int cycles)
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
int
|
|
sh64_fetch_register (SIM_CPU *cpu, int nr, unsigned char *buf, int len)
|
|
{
|
|
/* Fetch general purpose registers. */
|
|
if (nr >= SIM_SH64_R0_REGNUM
|
|
&& nr < (SIM_SH64_R0_REGNUM + SIM_SH64_NR_R_REGS)
|
|
&& len == 8)
|
|
{
|
|
*((unsigned64*) buf) =
|
|
H2T_8 (sh64_h_gr_get (cpu, nr - SIM_SH64_R0_REGNUM));
|
|
return len;
|
|
}
|
|
|
|
/* Fetch PC. */
|
|
if (nr == SIM_SH64_PC_REGNUM && len == 8)
|
|
{
|
|
*((unsigned64*) buf) = H2T_8 (sh64_h_pc_get (cpu) | sh64_h_ism_get (cpu));
|
|
return len;
|
|
}
|
|
|
|
/* Fetch status register (SR). */
|
|
if (nr == SIM_SH64_SR_REGNUM && len == 8)
|
|
{
|
|
*((unsigned64*) buf) = H2T_8 (sh64_h_sr_get (cpu));
|
|
return len;
|
|
}
|
|
|
|
/* Fetch saved status register (SSR) and PC (SPC). */
|
|
if ((nr == SIM_SH64_SSR_REGNUM || nr == SIM_SH64_SPC_REGNUM)
|
|
&& len == 8)
|
|
{
|
|
*((unsigned64*) buf) = 0;
|
|
return len;
|
|
}
|
|
|
|
/* Fetch target registers. */
|
|
if (nr >= SIM_SH64_TR0_REGNUM
|
|
&& nr < (SIM_SH64_TR0_REGNUM + SIM_SH64_NR_TR_REGS)
|
|
&& len == 8)
|
|
{
|
|
*((unsigned64*) buf) =
|
|
H2T_8 (sh64_h_tr_get (cpu, nr - SIM_SH64_TR0_REGNUM));
|
|
return len;
|
|
}
|
|
|
|
/* Fetch floating point registers. */
|
|
if (nr >= SIM_SH64_FR0_REGNUM
|
|
&& nr < (SIM_SH64_FR0_REGNUM + SIM_SH64_NR_FP_REGS)
|
|
&& len == 4)
|
|
{
|
|
*((unsigned32*) buf) =
|
|
H2T_4 (sh64_h_fr_get (cpu, nr - SIM_SH64_FR0_REGNUM));
|
|
return len;
|
|
}
|
|
|
|
/* We should never get here. */
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sh64_store_register (SIM_CPU *cpu, int nr, unsigned char *buf, int len)
|
|
{
|
|
/* Store general purpose registers. */
|
|
if (nr >= SIM_SH64_R0_REGNUM
|
|
&& nr < (SIM_SH64_R0_REGNUM + SIM_SH64_NR_R_REGS)
|
|
&& len == 8)
|
|
{
|
|
sh64_h_gr_set (cpu, nr - SIM_SH64_R0_REGNUM, T2H_8 (*((unsigned64*)buf)));
|
|
return len;
|
|
}
|
|
|
|
/* Store PC. */
|
|
if (nr == SIM_SH64_PC_REGNUM && len == 8)
|
|
{
|
|
unsigned64 new_pc = T2H_8 (*((unsigned64*)buf));
|
|
sh64_h_pc_set (cpu, new_pc);
|
|
return len;
|
|
}
|
|
|
|
/* Store status register (SR). */
|
|
if (nr == SIM_SH64_SR_REGNUM && len == 8)
|
|
{
|
|
sh64_h_sr_set (cpu, T2H_8 (*((unsigned64*)buf)));
|
|
return len;
|
|
}
|
|
|
|
/* Store saved status register (SSR) and PC (SPC). */
|
|
if (nr == SIM_SH64_SSR_REGNUM || nr == SIM_SH64_SPC_REGNUM)
|
|
{
|
|
/* Do nothing. */
|
|
return len;
|
|
}
|
|
|
|
/* Store target registers. */
|
|
if (nr >= SIM_SH64_TR0_REGNUM
|
|
&& nr < (SIM_SH64_TR0_REGNUM + SIM_SH64_NR_TR_REGS)
|
|
&& len == 8)
|
|
{
|
|
sh64_h_tr_set (cpu, nr - SIM_SH64_TR0_REGNUM, T2H_8 (*((unsigned64*)buf)));
|
|
return len;
|
|
}
|
|
|
|
/* Store floating point registers. */
|
|
if (nr >= SIM_SH64_FR0_REGNUM
|
|
&& nr < (SIM_SH64_FR0_REGNUM + SIM_SH64_NR_FP_REGS)
|
|
&& len == 4)
|
|
{
|
|
sh64_h_fr_set (cpu, nr - SIM_SH64_FR0_REGNUM, T2H_4 (*((unsigned32*)buf)));
|
|
return len;
|
|
}
|
|
|
|
/* We should never get here. */
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
sh64_engine_run_full(SIM_CPU *cpu)
|
|
{
|
|
if (sh64_h_ism_get (cpu) == ISM_MEDIA)
|
|
{
|
|
if (!sh64_idesc_media)
|
|
{
|
|
sh64_media_init_idesc_table (cpu);
|
|
sh64_idesc_media = CPU_IDESC (cpu);
|
|
}
|
|
else
|
|
CPU_IDESC (cpu) = sh64_idesc_media;
|
|
sh64_media_engine_run_full (cpu);
|
|
}
|
|
else
|
|
{
|
|
if (!sh64_idesc_compact)
|
|
{
|
|
sh64_compact_init_idesc_table (cpu);
|
|
sh64_idesc_compact = CPU_IDESC (cpu);
|
|
}
|
|
else
|
|
CPU_IDESC (cpu) = sh64_idesc_compact;
|
|
sh64_compact_engine_run_full (cpu);
|
|
}
|
|
}
|
|
|
|
void
|
|
sh64_engine_run_fast (SIM_CPU *cpu)
|
|
{
|
|
if (sh64_h_ism_get (cpu) == ISM_MEDIA)
|
|
{
|
|
if (!sh64_idesc_media)
|
|
{
|
|
sh64_media_init_idesc_table (cpu);
|
|
sh64_idesc_media = CPU_IDESC (cpu);
|
|
}
|
|
else
|
|
CPU_IDESC (cpu) = sh64_idesc_media;
|
|
sh64_media_engine_run_fast (cpu);
|
|
}
|
|
else
|
|
{
|
|
if (!sh64_idesc_compact)
|
|
{
|
|
sh64_compact_init_idesc_table (cpu);
|
|
sh64_idesc_compact = CPU_IDESC (cpu);
|
|
}
|
|
else
|
|
CPU_IDESC (cpu) = sh64_idesc_compact;
|
|
sh64_compact_engine_run_fast (cpu);
|
|
}
|
|
}
|
|
|
|
static void
|
|
sh64_prepare_run (SIM_CPU *cpu)
|
|
{
|
|
/* Nothing. */
|
|
}
|
|
|
|
static const CGEN_INSN *
|
|
sh64_get_idata (SIM_CPU *cpu, int inum)
|
|
{
|
|
return CPU_IDESC (cpu) [inum].idata;
|
|
}
|
|
|
|
static void
|
|
sh64_init_cpu (SIM_CPU *cpu)
|
|
{
|
|
CPU_REG_FETCH (cpu) = sh64_fetch_register;
|
|
CPU_REG_STORE (cpu) = sh64_store_register;
|
|
CPU_PC_FETCH (cpu) = sh64_h_pc_get;
|
|
CPU_PC_STORE (cpu) = sh64_h_pc_set;
|
|
CPU_GET_IDATA (cpu) = sh64_get_idata;
|
|
/* Only used by profiling. 0 disables it. */
|
|
CPU_MAX_INSNS (cpu) = 0;
|
|
CPU_INSN_NAME (cpu) = cgen_insn_name;
|
|
CPU_FULL_ENGINE_FN (cpu) = sh64_engine_run_full;
|
|
#if WITH_FAST
|
|
CPU_FAST_ENGINE_FN (cpu) = sh64_engine_run_fast;
|
|
#else
|
|
CPU_FAST_ENGINE_FN (cpu) = sh64_engine_run_full;
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
shmedia_init_cpu (SIM_CPU *cpu)
|
|
{
|
|
sh64_init_cpu (cpu);
|
|
}
|
|
|
|
static void
|
|
shcompact_init_cpu (SIM_CPU *cpu)
|
|
{
|
|
sh64_init_cpu (cpu);
|
|
}
|
|
|
|
static void
|
|
sh64_model_init()
|
|
{
|
|
/* Do nothing. */
|
|
}
|
|
|
|
static const MODEL sh_models [] =
|
|
{
|
|
{ "sh2", & sh2_mach, MODEL_SH5, NULL, sh64_model_init },
|
|
{ "sh3", & sh3_mach, MODEL_SH5, NULL, sh64_model_init },
|
|
{ "sh3e", & sh3_mach, MODEL_SH5, NULL, sh64_model_init },
|
|
{ "sh4", & sh4_mach, MODEL_SH5, NULL, sh64_model_init },
|
|
{ "sh5", & sh5_mach, MODEL_SH5, NULL, sh64_model_init },
|
|
{ 0 }
|
|
};
|
|
|
|
static const MACH_IMP_PROPERTIES sh5_imp_properties =
|
|
{
|
|
sizeof (SIM_CPU),
|
|
#if WITH_SCACHE
|
|
sizeof (SCACHE)
|
|
#else
|
|
0
|
|
#endif
|
|
};
|
|
|
|
const MACH sh2_mach =
|
|
{
|
|
"sh2", "sh2", MACH_SH5,
|
|
16, 16, &sh_models[0], &sh5_imp_properties,
|
|
shcompact_init_cpu,
|
|
sh64_prepare_run
|
|
};
|
|
|
|
const MACH sh3_mach =
|
|
{
|
|
"sh3", "sh3", MACH_SH5,
|
|
16, 16, &sh_models[1], &sh5_imp_properties,
|
|
shcompact_init_cpu,
|
|
sh64_prepare_run
|
|
};
|
|
|
|
const MACH sh3e_mach =
|
|
{
|
|
"sh3e", "sh3e", MACH_SH5,
|
|
16, 16, &sh_models[2], &sh5_imp_properties,
|
|
shcompact_init_cpu,
|
|
sh64_prepare_run
|
|
};
|
|
|
|
const MACH sh4_mach =
|
|
{
|
|
"sh4", "sh4", MACH_SH5,
|
|
16, 16, &sh_models[3], &sh5_imp_properties,
|
|
shcompact_init_cpu,
|
|
sh64_prepare_run
|
|
};
|
|
|
|
const MACH sh5_mach =
|
|
{
|
|
"sh5", "sh5", MACH_SH5,
|
|
32, 32, &sh_models[4], &sh5_imp_properties,
|
|
shmedia_init_cpu,
|
|
sh64_prepare_run
|
|
};
|