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/* Host-dependent code for Apollo-68ks for GDB, the GNU debugger.
Copyright 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "inferior.h"
#ifndef _ISP__M68K
#define _ISP__M68K 1
#endif
#include <ptrace.h>
extern int errno;
void
fetch_inferior_registers (int ignored)
{
struct ptrace_$data_regs_m68k inferior_registers;
struct ptrace_$floating_regs_m68k inferior_fp_registers;
struct ptrace_$control_regs_m68k inferior_control_registers;
ptrace_$init_control (&inferior_control_registers);
inferior_fp_registers.size = sizeof (inferior_fp_registers);
registers_fetched ();
ptrace (PTRACE_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_registers,
ptrace_$data_set,
(PTRACE_ARG3_TYPE) & inferior_registers,
ptrace_$data_set);
ptrace (PTRACE_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k);
ptrace (PTRACE_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k);
bcopy (&inferior_registers, registers, 16 * 4);
bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
sizeof inferior_fp_registers.regs);
*(int *) ®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_control_registers.sr;
*(int *) ®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_control_registers.pc;
}
/* Store our register values back into the inferior.
If REGNO is -1, do this for all registers.
Otherwise, REGNO specifies which register (so we can save time). */
void
store_inferior_registers (int regno)
{
struct ptrace_$data_regs_m68k inferior_registers;
struct ptrace_$floating_regs_m68k inferior_fp_registers;
struct ptrace_$control_regs_m68k inferior_control_registers;
ptrace_$init_control (&inferior_control_registers);
inferior_fp_registers.size = sizeof (inferior_fp_registers);
ptrace (PTRACE_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k);
ptrace (PTRACE_GETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k);
bcopy (registers, &inferior_registers, sizeof (inferior_registers));
bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], inferior_fp_registers.regs,
sizeof inferior_fp_registers.regs);
inferior_control_registers.sr = *(int *) ®isters[REGISTER_BYTE (PS_REGNUM)];
inferior_control_registers.pc = *(int *) ®isters[REGISTER_BYTE (PC_REGNUM)];
ptrace (PTRACE_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_registers,
ptrace_$data_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_registers,
ptrace_$data_set_m68k);
ptrace (PTRACE_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_fp_registers,
ptrace_$floating_set_m68k);
ptrace (PTRACE_SETREGS, inferior_pid,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k,
(PTRACE_ARG3_TYPE) & inferior_control_registers,
ptrace_$control_set_m68k);
}
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