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Diffstat (limited to 'sim/d30v/cpu.c')
| -rw-r--r-- | sim/d30v/cpu.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/sim/d30v/cpu.c b/sim/d30v/cpu.c deleted file mode 100644 index c14a951c15d..00000000000 --- a/sim/d30v/cpu.c +++ /dev/null @@ -1,172 +0,0 @@ -/* Mitsubishi Electric Corp. D30V Simulator. - Copyright (C) 1997, Free Software Foundation, Inc. - Contributed by Cygnus Support. - -This file is part of GDB, the GNU debugger. - -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, 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. */ - - -#ifndef _CPU_C_ -#define _CPU_C_ - -#include "sim-main.h" - - -int -is_wrong_slot (SIM_DESC sd, - address_word cia, - itable_index index) -{ - switch (STATE_CPU (sd, 0)->unit) - { - case memory_unit: - return !itable[index].option[itable_option_mu]; - case integer_unit: - return !itable[index].option[itable_option_iu]; - case any_unit: - return 0; - default: - sim_engine_abort (sd, STATE_CPU (sd, 0), cia, - "internal error - is_wrong_slot - bad switch"); - return -1; - } -} - -int -is_condition_ok (SIM_DESC sd, - address_word cia, - int cond) -{ - switch (cond) - { - case 0x0: - return 1; - case 0x1: - return PSW_VAL(PSW_F0); - case 0x2: - return !PSW_VAL(PSW_F0); - case 0x3: - return PSW_VAL(PSW_F1); - case 0x4: - return !PSW_VAL(PSW_F1); - case 0x5: - return PSW_VAL(PSW_F0) && PSW_VAL(PSW_F1); - case 0x6: - return PSW_VAL(PSW_F0) && !PSW_VAL(PSW_F1); - case 0x7: - sim_engine_abort (sd, STATE_CPU (sd, 0), cia, - "is_condition_ok - bad instruction condition bits"); - return 0; - default: - sim_engine_abort (sd, STATE_CPU (sd, 0), cia, - "internal error - is_condition_ok - bad switch"); - return -1; - } -} - -/* If --trace-call, trace calls, remembering the current state of - registers. */ - -typedef struct _call_stack { - struct _call_stack *prev; - registers regs; -} call_stack; - -static call_stack *call_stack_head = (call_stack *)0; -static int call_depth = 0; - -void call_occurred (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - address_word nia) -{ - call_stack *ptr = ZALLOC (call_stack); - ptr->regs = cpu->regs; - ptr->prev = call_stack_head; - call_stack_head = ptr; - - trace_one_insn (sd, cpu, nia, 1, "", 0, "call", - "Depth %3d, Return 0x%.8lx, Args 0x%.8lx 0x%.8lx", - ++call_depth, (unsigned long)cia+8, (unsigned long)GPR[2], - (unsigned long)GPR[3]); -} - -/* If --trace-call, trace returns, checking if any saved register was changed. */ - -void return_occurred (SIM_DESC sd, - sim_cpu *cpu, - address_word cia, - address_word nia) -{ - char buffer[1024]; - char *buf_ptr = buffer; - call_stack *ptr = call_stack_head; - int regno; - char *prefix = ", Registers that differ: "; - - *buf_ptr = '\0'; - for (regno = 34; regno <= 63; regno++) { - if (cpu->regs.general_purpose[regno] != ptr->regs.general_purpose[regno]) { - sprintf (buf_ptr, "%sr%d", prefix, regno); - buf_ptr += strlen (buf_ptr); - prefix = " "; - } - } - - if (cpu->regs.accumulator[1] != ptr->regs.accumulator[1]) { - sprintf (buf_ptr, "%sa1", prefix); - buf_ptr += strlen (buf_ptr); - prefix = " "; - } - - trace_one_insn (sd, cpu, cia, 1, "", 0, "return", - "Depth %3d, Return 0x%.8lx, Ret. 0x%.8lx 0x%.8lx%s", - call_depth--, (unsigned long)nia, (unsigned long)GPR[2], - (unsigned long)GPR[3], buffer); - - call_stack_head = ptr->prev; - zfree (ptr); -} - - -/* Read/write functions for system call interface. */ -int -d30v_read_mem (host_callback *cb, - struct cb_syscall *sc, - unsigned long taddr, - char *buf, - int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - sim_cpu *cpu = STATE_CPU (sd, 0); - - return sim_core_read_buffer (sd, cpu, read_map, buf, taddr, bytes); -} - -int -d30v_write_mem (host_callback *cb, - struct cb_syscall *sc, - unsigned long taddr, - const char *buf, - int bytes) -{ - SIM_DESC sd = (SIM_DESC) sc->p1; - sim_cpu *cpu = STATE_CPU (sd, 0); - - return sim_core_write_buffer (sd, cpu, write_map, buf, taddr, bytes); -} - -#endif /* _CPU_C_ */ |