int
sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
SI val;
check_desc (sd);
if (!check_regno (regno))
return -1;
size = reg_size (regno);
if (length != size)
return -1;
val = get_le (buf, length);
if (regno == sim_rl78_pc_regnum)
{
pc = val;
/* The rl78 program counter is 20 bits wide. Ensure that GDB
hasn't picked up any stray bits. This has occurred when performing
a GDB "return" command in which the return address is obtained
from a 32-bit container on the stack. */
assert ((pc & ~0x0fffff) == 0);
}
else
memory[reg_addr (regno)] = val;
return size;
}
int
sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
SI val;
check_desc (sd);
if (!check_regno (regno))
return 0;
size = reg_size (regno);
if (length != size)
return 0;
if (regno == sim_rl78_pc_regnum)
val = pc;
else
val = memory[reg_addr (regno)];
put_le (buf, length, val);
return size;
}
void
sim_info (SIM_DESC sd, int verbose)
{
check_desc (sd);
printf ("The rx minisim doesn't collect any statistics.\n");
}
void
sim_stop_reason (SIM_DESC sd, enum sim_stop *reason_p, int *sigrc_p)
{
check_desc (sd);
*reason_p = reason;
*sigrc_p = siggnal;
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, const unsigned char *buf, int length)
{
check_desc (sd);
mem_put_blk ((int) mem, buf, length);
return length;
}
void
sim_close (SIM_DESC sd, int quitting)
{
check_desc (sd);
/* Not much to do. At least free up our memory. */
init_mem ();
open = 0;
}
SIM_RC
sim_create_inferior (SIM_DESC sd, struct bfd * abfd, char **argv, char **env)
{
check_desc (sd);
if (abfd)
m32c_load (abfd);
return SIM_RC_OK;
}
void
sim_do_command (SIM_DESC sd, char *cmd)
{
check_desc (sd);
char *p = cmd;
/* Skip leading whitespace. */
while (isspace (*p))
p++;
/* Find the extent of the command word. */
for (p = cmd; *p; p++)
if (isspace (*p))
break;
/* Null-terminate the command word, and record the start of any
further arguments. */
char *args;
if (*p)
{
*p = '\0';
args = p + 1;
while (isspace (*args))
args++;
}
else
args = p;
if (strcmp (cmd, "trace") == 0)
{
if (strcmp (args, "on") == 0)
trace = 1;
else if (strcmp (args, "off") == 0)
trace = 0;
else
printf ("The 'sim trace' command expects 'on' or 'off' "
"as an argument.\n");
}
else if (strcmp (cmd, "verbose") == 0)
{
if (strcmp (args, "on") == 0)
verbose = 1;
else if (strcmp (args, "noisy") == 0)
verbose = 2;
else if (strcmp (args, "off") == 0)
verbose = 0;
else
printf ("The 'sim verbose' command expects 'on', 'noisy', or 'off'"
" as an argument.\n");
}
else
printf ("The 'sim' command expects either 'trace' or 'verbose'"
" as a subcommand.\n");
}
SIM_RC
sim_create_inferior (SIM_DESC sd, struct bfd *abfd,
char * const *argv, char * const *env)
{
check_desc (sd);
if (abfd)
rl78_load (abfd, 0, "sim");
return SIM_RC_OK;
}
int
sim_read (SIM_DESC sd, SIM_ADDR mem, unsigned char *buf, int length)
{
check_desc (sd);
if (mem == 0)
return 0;
mem_get_blk ((int) mem, buf, length);
return length;
}
SIM_RC
sim_create_inferior (SIM_DESC sd, struct bfd *abfd, char **argv, char **env)
{
check_desc (sd);
if (abfd)
{
rx_load (abfd);
build_swap_list (abfd);
}
return SIM_RC_OK;
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, const unsigned char *buf, int length)
{
check_desc (sd);
if (mem >= MEM_SIZE)
return 0;
else if (mem + length > MEM_SIZE)
length = MEM_SIZE - mem;
mem_put_blk (mem, buf, length);
return length;
}
SIM_RC
sim_load (SIM_DESC sd, char *prog, struct bfd * abfd, int from_tty)
{
check_desc (sd);
if (!abfd)
abfd = open_objfile (prog);
if (!abfd)
return SIM_RC_FAIL;
m32c_load (abfd);
return SIM_RC_OK;
}
SIM_RC
sim_load (SIM_DESC sd, char *prog, struct bfd *abfd, int from_tty)
{
check_desc (sd);
if (!abfd)
abfd = open_objfile (prog);
if (!abfd)
return SIM_RC_FAIL;
rl78_load (abfd, host_callbacks, "sim");
return SIM_RC_OK;
}
void
sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
{
check_desc (sd);
if (sig_to_deliver != 0)
{
fprintf (stderr,
"Warning: the rx minisim does not implement "
"signal delivery yet.\n" "Resuming with no signal.\n");
}
execution_error_clear_last_error ();
if (step)
handle_step (decode_opcode ());
else
{
/* We don't clear 'stop' here, because then we would miss
interrupts that arrived on the way here. Instead, we clear
the flag in sim_stop_reason, after GDB has disabled the
interrupt signal handler. */
for (;;)
{
if (stop)
{
stop = 0;
reason = sim_stopped;
siggnal = TARGET_SIGNAL_INT;
break;
}
int rc = decode_opcode ();
if (execution_error_get_last_error () != SIM_ERR_NONE)
{
reason = sim_stopped;
siggnal = TARGET_SIGNAL_SEGV;
break;
}
if (!RX_STEPPED (rc))
{
handle_step (rc);
break;
}
}
}
}
void
sim_resume (SIM_DESC sd, int step, int sig_to_deliver)
{
int rc;
check_desc (sd);
if (sig_to_deliver != 0)
{
fprintf (stderr,
"Warning: the rl78 minisim does not implement "
"signal delivery yet.\n" "Resuming with no signal.\n");
}
/* We don't clear 'stop' here, because then we would miss
interrupts that arrived on the way here. Instead, we clear
the flag in sim_stop_reason, after GDB has disabled the
interrupt signal handler. */
for (;;)
{
if (stop)
{
stop = 0;
reason = sim_stopped;
siggnal = GDB_SIGNAL_INT;
break;
}
if (hw_breakpoints[pc >> 3]
&& (hw_breakpoints[pc >> 3] & (1 << (pc & 0x7))))
{
reason = sim_stopped;
siggnal = GDB_SIGNAL_TRAP;
break;
}
rc = setjmp (decode_jmp_buf);
if (rc == 0)
rc = decode_opcode ();
if (!RL78_STEPPED (rc) || step)
{
handle_step (rc);
break;
}
}
}
int
sim_write (SIM_DESC sd, SIM_ADDR mem, const unsigned char *buf, int length)
{
int i;
check_desc (sd);
execution_error_clear_last_error ();
for (i = 0; i < length; i++)
{
bfd_vma addr = mem + i;
int do_swap = addr_in_swap_list (addr);
mem_put_qi (addr ^ (do_swap ? 3 : 0), buf[i]);
if (execution_error_get_last_error () != SIM_ERR_NONE)
return i;
}
return length;
}
int
sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
SI val;
check_desc (sd);
if (!check_regno (regno))
return -1;
size = reg_size (regno);
if (length != size)
return -1;
val = get_le (buf, length);
if (regno == sim_rl78_pc_regnum)
pc = val;
else
memory[reg_addr (regno)] = val;
return size;
}
int
sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
check_desc (sd);
if (!check_regno (regno))
return -1;
size = reg_size (regno);
if (length == size)
{
DI val = get_le (buf, length);
switch (regno)
{
case m32c_sim_reg_r0_bank0:
regs.r[0].r_r0 = val & 0xffff;
break;
case m32c_sim_reg_r1_bank0:
regs.r[0].r_r1 = val & 0xffff;
break;
case m32c_sim_reg_r2_bank0:
regs.r[0].r_r2 = val & 0xffff;
break;
case m32c_sim_reg_r3_bank0:
regs.r[0].r_r3 = val & 0xffff;
break;
case m32c_sim_reg_a0_bank0:
regs.r[0].r_a0 = val & addr_mask;
break;
case m32c_sim_reg_a1_bank0:
regs.r[0].r_a1 = val & addr_mask;
break;
case m32c_sim_reg_fb_bank0:
regs.r[0].r_fb = val & addr_mask;
break;
case m32c_sim_reg_sb_bank0:
regs.r[0].r_sb = val & addr_mask;
break;
case m32c_sim_reg_r0_bank1:
regs.r[1].r_r0 = val & 0xffff;
break;
case m32c_sim_reg_r1_bank1:
regs.r[1].r_r1 = val & 0xffff;
break;
case m32c_sim_reg_r2_bank1:
regs.r[1].r_r2 = val & 0xffff;
break;
case m32c_sim_reg_r3_bank1:
regs.r[1].r_r3 = val & 0xffff;
break;
case m32c_sim_reg_a0_bank1:
regs.r[1].r_a0 = val & addr_mask;
break;
case m32c_sim_reg_a1_bank1:
regs.r[1].r_a1 = val & addr_mask;
break;
case m32c_sim_reg_fb_bank1:
regs.r[1].r_fb = val & addr_mask;
break;
case m32c_sim_reg_sb_bank1:
regs.r[1].r_sb = val & addr_mask;
break;
case m32c_sim_reg_usp:
regs.r_usp = val & addr_mask;
break;
case m32c_sim_reg_isp:
regs.r_isp = val & addr_mask;
break;
case m32c_sim_reg_pc:
regs.r_pc = val & membus_mask;
break;
case m32c_sim_reg_intb:
regs.r_intbl = (val & membus_mask) & 0xffff;
regs.r_intbh = (val & membus_mask) >> 16;
break;
case m32c_sim_reg_flg:
regs.r_flags = val & 0xffff;
break;
/* These registers aren't implemented by the minisim. */
case m32c_sim_reg_svf:
case m32c_sim_reg_svp:
case m32c_sim_reg_vct:
case m32c_sim_reg_dmd0:
case m32c_sim_reg_dmd1:
case m32c_sim_reg_dct0:
case m32c_sim_reg_dct1:
case m32c_sim_reg_drc0:
case m32c_sim_reg_drc1:
case m32c_sim_reg_dma0:
case m32c_sim_reg_dma1:
case m32c_sim_reg_dsa0:
case m32c_sim_reg_dsa1:
case m32c_sim_reg_dra0:
case m32c_sim_reg_dra1:
return 0;
default:
fprintf (stderr, "m32c minisim: unrecognized register number: %d\n",
regno);
return 0;
}
}
int
sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
check_desc (sd);
if (!check_regno (regno))
return 0;
size = reg_size (regno);
if (length == size)
{
DI val;
switch (regno)
{
case m32c_sim_reg_r0_bank0:
val = regs.r[0].r_r0;
break;
case m32c_sim_reg_r1_bank0:
val = regs.r[0].r_r1;
break;
case m32c_sim_reg_r2_bank0:
val = regs.r[0].r_r2;
break;
case m32c_sim_reg_r3_bank0:
val = regs.r[0].r_r3;
break;
case m32c_sim_reg_a0_bank0:
val = regs.r[0].r_a0;
break;
case m32c_sim_reg_a1_bank0:
val = regs.r[0].r_a1;
break;
case m32c_sim_reg_fb_bank0:
val = regs.r[0].r_fb;
break;
case m32c_sim_reg_sb_bank0:
val = regs.r[0].r_sb;
break;
case m32c_sim_reg_r0_bank1:
val = regs.r[1].r_r0;
break;
case m32c_sim_reg_r1_bank1:
val = regs.r[1].r_r1;
break;
case m32c_sim_reg_r2_bank1:
val = regs.r[1].r_r2;
break;
case m32c_sim_reg_r3_bank1:
val = regs.r[1].r_r3;
break;
case m32c_sim_reg_a0_bank1:
val = regs.r[1].r_a0;
break;
case m32c_sim_reg_a1_bank1:
val = regs.r[1].r_a1;
break;
case m32c_sim_reg_fb_bank1:
val = regs.r[1].r_fb;
break;
case m32c_sim_reg_sb_bank1:
val = regs.r[1].r_sb;
break;
case m32c_sim_reg_usp:
val = regs.r_usp;
break;
case m32c_sim_reg_isp:
val = regs.r_isp;
break;
case m32c_sim_reg_pc:
val = regs.r_pc;
break;
case m32c_sim_reg_intb:
val = regs.r_intbl * 65536 + regs.r_intbl;
break;
case m32c_sim_reg_flg:
val = regs.r_flags;
break;
/* These registers aren't implemented by the minisim. */
case m32c_sim_reg_svf:
case m32c_sim_reg_svp:
case m32c_sim_reg_vct:
case m32c_sim_reg_dmd0:
case m32c_sim_reg_dmd1:
case m32c_sim_reg_dct0:
case m32c_sim_reg_dct1:
case m32c_sim_reg_drc0:
case m32c_sim_reg_drc1:
case m32c_sim_reg_dma0:
case m32c_sim_reg_dma1:
case m32c_sim_reg_dsa0:
case m32c_sim_reg_dsa1:
case m32c_sim_reg_dra0:
case m32c_sim_reg_dra1:
return 0;
default:
fprintf (stderr, "m32c minisim: unrecognized register number: %d\n",
regno);
return -1;
}
put_le (buf, length, val);
}
return size;
}
int
sim_store_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
DI val;
check_desc (sd);
if (!check_regno (regno))
return 0;
size = reg_size (regno);
if (length != size)
return 0;
if (rx_big_endian)
val = get_be (buf, length);
else
val = get_le (buf, length);
switch (regno)
{
case sim_rx_r0_regnum:
put_reg (0, val);
break;
case sim_rx_r1_regnum:
put_reg (1, val);
break;
case sim_rx_r2_regnum:
put_reg (2, val);
break;
case sim_rx_r3_regnum:
put_reg (3, val);
break;
case sim_rx_r4_regnum:
put_reg (4, val);
break;
case sim_rx_r5_regnum:
put_reg (5, val);
break;
case sim_rx_r6_regnum:
put_reg (6, val);
break;
case sim_rx_r7_regnum:
put_reg (7, val);
break;
case sim_rx_r8_regnum:
put_reg (8, val);
break;
case sim_rx_r9_regnum:
put_reg (9, val);
break;
case sim_rx_r10_regnum:
put_reg (10, val);
break;
case sim_rx_r11_regnum:
put_reg (11, val);
break;
case sim_rx_r12_regnum:
put_reg (12, val);
break;
case sim_rx_r13_regnum:
put_reg (13, val);
break;
case sim_rx_r14_regnum:
put_reg (14, val);
break;
case sim_rx_r15_regnum:
put_reg (15, val);
break;
case sim_rx_isp_regnum:
put_reg (isp, val);
break;
case sim_rx_usp_regnum:
put_reg (usp, val);
break;
case sim_rx_intb_regnum:
put_reg (intb, val);
break;
case sim_rx_pc_regnum:
put_reg (pc, val);
break;
case sim_rx_ps_regnum:
put_reg (psw, val);
break;
case sim_rx_bpc_regnum:
put_reg (bpc, val);
break;
case sim_rx_bpsw_regnum:
put_reg (bpsw, val);
break;
case sim_rx_fintv_regnum:
put_reg (fintv, val);
break;
case sim_rx_fpsw_regnum:
put_reg (fpsw, val);
break;
default:
fprintf (stderr, "rx minisim: unrecognized register number: %d\n",
regno);
return -1;
}
return size;
}
int
sim_fetch_register (SIM_DESC sd, int regno, unsigned char *buf, int length)
{
size_t size;
DI val;
check_desc (sd);
if (!check_regno (regno))
return 0;
size = reg_size (regno);
if (length != size)
return 0;
switch (regno)
{
case sim_rx_r0_regnum:
val = get_reg (0);
break;
case sim_rx_r1_regnum:
val = get_reg (1);
break;
case sim_rx_r2_regnum:
val = get_reg (2);
break;
case sim_rx_r3_regnum:
val = get_reg (3);
break;
case sim_rx_r4_regnum:
val = get_reg (4);
break;
case sim_rx_r5_regnum:
val = get_reg (5);
break;
case sim_rx_r6_regnum:
val = get_reg (6);
break;
case sim_rx_r7_regnum:
val = get_reg (7);
break;
case sim_rx_r8_regnum:
val = get_reg (8);
break;
case sim_rx_r9_regnum:
val = get_reg (9);
break;
case sim_rx_r10_regnum:
val = get_reg (10);
break;
case sim_rx_r11_regnum:
val = get_reg (11);
break;
case sim_rx_r12_regnum:
val = get_reg (12);
break;
case sim_rx_r13_regnum:
val = get_reg (13);
break;
case sim_rx_r14_regnum:
val = get_reg (14);
break;
case sim_rx_r15_regnum:
val = get_reg (15);
break;
case sim_rx_isp_regnum:
val = get_reg (isp);
break;
case sim_rx_usp_regnum:
val = get_reg (usp);
break;
case sim_rx_intb_regnum:
val = get_reg (intb);
break;
case sim_rx_pc_regnum:
val = get_reg (pc);
break;
case sim_rx_ps_regnum:
val = get_reg (psw);
break;
case sim_rx_bpc_regnum:
val = get_reg (bpc);
break;
case sim_rx_bpsw_regnum:
val = get_reg (bpsw);
break;
case sim_rx_fintv_regnum:
val = get_reg (fintv);
break;
case sim_rx_fpsw_regnum:
val = get_reg (fpsw);
break;
case sim_rx_acc_regnum:
val = ((DI) get_reg (acchi) << 32) | get_reg (acclo);
break;
default:
fprintf (stderr, "rx minisim: unrecognized register number: %d\n",
regno);
return -1;
}
if (rx_big_endian)
put_be (buf, length, val);
else
put_le (buf, length, val);
return size;
}