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* dv-m68hc11tim.c (cycle_to_string): Add flags parameter to better

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control the translation.
	(m68hc11tim_print_timer): Update cycle_to_string conversion.
	(m68hc11tim_timer_event): Fix handling of output
	compare register with its interrupts.
	(m68hc11tim_io_write_buffer): Check output compare
	after setting M6811_TMSK1.
	(m68hc11tim_io_read_buffer): Fix compilation warning.
	* dv-m68hc11.c (m68hc11_option_handler): Likewise.
	* dv-m68hc11spi.c (m68hc11spi_info): Likewise.
	* dv-m68hc11sio.c (m68hc11sio_info): Likewise.
	* interrupts.c (interrupts_info): Likewise.
	(interrupts_reset): Recognize bootstrap mode.
	* sim-main.h (PRINT_CYCLE, PRINT_TIME): New defines.
	(_sim_cpu): Add cpu_start_mode.
	(cycle_to_string): Add flags member.
	* m68hc11_sim.c (OPTION_CPU_BOOTSTRAP): New option.
	(cpu_options): Declare new option bootstrap.
	(cpu_option_handler): Handle it.
	(cpu_info): Update call to cycle_to_string.
This commit is contained in:
Stephane Carrez 2003-08-08 21:02:24 +00:00
parent 77342e5ecc
commit a685700c57
8 changed files with 170 additions and 65 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
sim/m68hc11/ChangeLog
View File

@ -1,3 +1,26 @@
2003-08-08 Stephane Carrez <stcarrez@nerim.fr>
* dv-m68hc11tim.c (cycle_to_string): Add flags parameter to better
control the translation.
(m68hc11tim_print_timer): Update cycle_to_string conversion.
(m68hc11tim_timer_event): Fix handling of output
compare register with its interrupts.
(m68hc11tim_io_write_buffer): Check output compare
after setting M6811_TMSK1.
(m68hc11tim_io_read_buffer): Fix compilation warning.
* dv-m68hc11.c (m68hc11_option_handler): Likewise.
* dv-m68hc11spi.c (m68hc11spi_info): Likewise.
* dv-m68hc11sio.c (m68hc11sio_info): Likewise.
* interrupts.c (interrupts_info): Likewise.
(interrupts_reset): Recognize bootstrap mode.
* sim-main.h (PRINT_CYCLE, PRINT_TIME): New defines.
(_sim_cpu): Add cpu_start_mode.
(cycle_to_string): Add flags member.
* m68hc11_sim.c (OPTION_CPU_BOOTSTRAP): New option.
(cpu_options): Declare new option bootstrap.
(cpu_option_handler): Handle it.
(cpu_info): Update call to cycle_to_string.
2003-08-08 Stephane Carrez <stcarrez@nerim.fr>
* sim-main.h (phys_to_virt): Use memory bank parameters to translate

6
sim/m68hc11/dv-m68hc11.c
View File

@ -808,13 +808,15 @@ m68hc11_option_handler (SIM_DESC sd, sim_cpu *cpu,
" %d %d %35.35s\n",
osc->name, freq,
cur_value, next_value,
cycle_to_string (cpu, t));
cycle_to_string (cpu, t,
PRINT_TIME | PRINT_CYCLE));
else
sim_io_printf (sd, " %4.4s %8.8s hz "
" %d %d %35.35s\n",
osc->name, freq,
cur_value, next_value,
cycle_to_string (cpu, t));
cycle_to_string (cpu, t,
PRINT_TIME | PRINT_CYCLE));
}
}
break;

5
sim/m68hc11/dv-m68hc11sio.c
View File

@ -463,7 +463,8 @@ m68hc11sio_info (struct hw *me)
n = (clock_cycle - t) / controller->baud_cycle;
n = controller->data_length - n;
sim_io_printf (sd, " Transmit finished in %s (%d bit%s)\n",
cycle_to_string (cpu, t), n, (n > 1 ? "s" : ""));
cycle_to_string (cpu, t, PRINT_TIME | PRINT_CYCLE),
n, (n > 1 ? "s" : ""));
}
if (controller->rx_poll_event)
{
@ -471,7 +472,7 @@ m68hc11sio_info (struct hw *me)
t = hw_event_remain_time (me, controller->rx_poll_event);
sim_io_printf (sd, " Receive finished in %s\n",
cycle_to_string (cpu, t));
cycle_to_string (cpu, t, PRINT_TIME | PRINT_CYCLE));
}
}

8
sim/m68hc11/dv-m68hc11spi.c
View File

@ -1,6 +1,6 @@
/* dv-m68hc11spi.c -- Simulation of the 68HC11 SPI
Copyright (C) 2000, 2002 Free Software Foundation, Inc.
Written by Stephane Carrez (stcarrez@worldnet.fr)
Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
Written by Stephane Carrez (stcarrez@nerim.fr)
(From a driver model Contributed by Cygnus Solutions.)
This file is part of the program GDB, the GNU debugger.
@ -358,11 +358,11 @@ m68hc11spi_info (struct hw *me)
controller->tx_bit + 1);
t = hw_event_remain_time (me, controller->spi_event);
sim_io_printf (sd, " SPI current bit-cycle finished in %s\n",
cycle_to_string (cpu, t));
cycle_to_string (cpu, t, PRINT_TIME | PRINT_CYCLE));
t += (controller->tx_bit + 1) * 2 * controller->clock;
sim_io_printf (sd, " SPI operation finished in %s\n",
cycle_to_string (cpu, t));
cycle_to_string (cpu, t, PRINT_TIME | PRINT_CYCLE));
}
}

111
sim/m68hc11/dv-m68hc11tim.c
View File

@ -25,7 +25,7 @@
#include "sim-main.h"
#include "hw-main.h"
#include "sim-assert.h"
#include <limits.h>
/* DEVICE
@ -250,7 +250,9 @@ m68hc11tim_timer_event (struct hw *me, void *data)
unsigned mask;
unsigned flags;
unsigned long tcnt_internal;
unsigned long tcnt;
unsigned long tcnt, tcnt_prev;
signed64 tcnt_insn_end;
signed64 tcnt_insn_start;
int i;
sim_events *events;
@ -289,11 +291,8 @@ m68hc11tim_timer_event (struct hw *me, void *data)
break;
case OVERFLOW_EVENT:
/* Compute the 68HC11 internal free running counter.
There may be 'nr_ticks_to_process' pending cycles that are
not (yet) taken into account by 'sim_events_time'. */
tcnt_internal = sim_events_time (sd) - controller->tcnt_adjust;
tcnt_internal += events->nr_ticks_to_process;
/* Compute the 68HC11 internal free running counter. */
tcnt_internal = (cpu->cpu_absolute_cycle - controller->tcnt_adjust);
/* We must take into account the prescaler that comes
before the counter (it's a power of 2). */
@ -316,22 +315,22 @@ m68hc11tim_timer_event (struct hw *me, void *data)
break;
case COMPARE_EVENT:
eventp = &controller->cmp_timer_event;
/* Compute value of TCNT register (64-bit precision) at beginning
and end of instruction. */
tcnt_insn_end = (cpu->cpu_absolute_cycle - controller->tcnt_adjust);
tcnt_insn_start = (tcnt_insn_end - cpu->cpu_current_cycle);
/* Compute the 68HC11 internal free running counter.
There may be 'nr_ticks_to_process' pending cycles that are
not (yet) taken into account by 'sim_events_time'. */
events = STATE_EVENTS (sd);
tcnt_internal = sim_events_time (sd) - controller->tcnt_adjust;
tcnt_internal += events->nr_ticks_to_process;
/* TCNT value at beginning of current instruction. */
tcnt_prev = (tcnt_insn_start / controller->clock_prescaler) & 0x0ffff;
/* TCNT value at end of current instruction. */
tcnt = (tcnt_insn_end / controller->clock_prescaler) & 0x0ffff;
/* We must take into account the prescaler that comes
before the counter (it's a power of 2). */
tcnt_internal = tcnt_insn_end;
tcnt_internal &= 0x0ffff * controller->clock_prescaler;
/* Get current visible TCNT register value. */
tcnt = tcnt_internal / controller->clock_prescaler;
flags = cpu->ios[M6811_TMSK1];
mask = 0x80;
delay = 65536 * controller->clock_prescaler;
@ -342,12 +341,28 @@ m68hc11tim_timer_event (struct hw *me, void *data)
for (i = M6811_TOC1; i <= M6811_TOC5; i += 2, mask >>= 1)
{
unsigned long compare;
compare = (cpu->ios[i] << 8) + cpu->ios[i+1];
if (compare == tcnt && (flags & mask))
compare = (cpu->ios[i] << 8) + cpu->ios[i + 1];
/* See if compare is reached; handle wrap arround. */
if ((compare >= tcnt_prev && compare <= tcnt && tcnt_prev < tcnt)
|| (compare >= tcnt_prev && tcnt_prev > tcnt)
|| (compare < tcnt && tcnt_prev > tcnt))
{
unsigned dt;
if (compare > tcnt)
dt = 0x10000 - compare - tcnt;
else
dt = tcnt - compare;
cpu->ios[M6811_TFLG1] |= mask;
check_interrupt++;
/* Raise interrupt now at the correct CPU cycle so that
we can find the interrupt latency. */
cpu->cpu_absolute_cycle -= dt;
interrupts_update_pending (&cpu->cpu_interrupts);
cpu->cpu_absolute_cycle += dt;
}
/* Compute how many times for the next match.
@ -359,14 +374,18 @@ m68hc11tim_timer_event (struct hw *me, void *data)
else
compare = compare - tcnt_internal
+ 65536 * controller->clock_prescaler;
if (compare < delay)
delay = compare;
}
/* Deactivate the compare timer if no output compare is enabled. */
if ((flags & 0xF0) == 0)
if ((flags & 0xF8) == 0)
delay = 0;
else
delay += events->nr_ticks_to_process;
eventp = &controller->cmp_timer_event;
break;
default:
@ -457,22 +476,35 @@ to_realtime (sim_cpu *cpu, signed64 t)
}
const char*
cycle_to_string (sim_cpu *cpu, signed64 t)
cycle_to_string (sim_cpu *cpu, signed64 t, int flags)
{
double dt;
char tbuf[32];
char time_buf[32];
char cycle_buf[32];
static char buf[64];
dt = to_realtime (cpu, t);
if (dt < 0.001)
sprintf (tbuf, "(%3.1f us)", dt * 1000000.0);
else if (dt < 1.0)
sprintf (tbuf, "(%3.1f ms)", dt * 1000.0);
else
sprintf (tbuf, "(%3.1f s)", dt);
time_buf[0] = 0;
cycle_buf[0] = 0;
if (flags & PRINT_TIME)
{
double dt;
sprintf (buf, "%llu cycle%s %10.10s", t,
(t > 1 ? "s" : ""), tbuf);
dt = to_realtime (cpu, t);
if (dt < 0.001)
sprintf (time_buf, " (%3.1f us)", dt * 1000000.0);
else if (dt < 1.0)
sprintf (time_buf, " (%3.1f ms)", dt * 1000.0);
else
sprintf (time_buf, " (%3.1f s)", dt);
}
if (flags & PRINT_CYCLE)
sprintf (cycle_buf, " cycle%s",
(t > 1 ? "s" : ""));
if (t < LONG_MAX)
sprintf (buf, "%9lu%s%s", (unsigned long) t, cycle_buf, time_buf);
else
sprintf (buf, "%llu%s%s", t, cycle_buf, time_buf);
return buf;
}
@ -496,7 +528,7 @@ m68hc11tim_print_timer (struct hw *me, const char *name,
t = hw_event_remain_time (me, event);
sim_io_printf (sd, " Next %s interrupt in %s\n",
name, cycle_to_string (cpu, t));
name, cycle_to_string (cpu, t, PRINT_TIME | PRINT_CYCLE));
}
}
@ -643,7 +675,7 @@ m68hc11tim_io_read_buffer (struct hw *me,
break;
}
*((unsigned8*) dest) = val;
dest++;
dest = (char*) dest + 1;
base++;
nr_bytes--;
cnt++;
@ -754,6 +786,7 @@ m68hc11tim_io_write_buffer (struct hw *me,
case M6811_TMSK1:
cpu->ios[M6811_TMSK1] = val;
interrupts_update_pending (&cpu->cpu_interrupts);
reset_compare = 1;
break;
case M6811_TFLG1:
@ -770,7 +803,7 @@ m68hc11tim_io_write_buffer (struct hw *me,
cpu->ios[base] = val;
reset_compare = 1;
break;
case M6811_TCTL1:
case M6811_TCTL2:
cpu->ios[base] = val;
@ -784,7 +817,7 @@ m68hc11tim_io_write_buffer (struct hw *me,
base++;
nr_bytes--;
cnt++;
source++;
source = (char*) source + 1;
}
/* Re-compute the next timer compare event. */

63
sim/m68hc11/interrupts.c
View File

@ -1,6 +1,6 @@
/* interrupts.c -- 68HC11 Interrupts Emulation
Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Written by Stephane Carrez (stcarrez@worldnet.fr)
Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
Written by Stephane Carrez (stcarrez@nerim.fr)
This file is part of GDB, GAS, and the GNU binutils.
@ -166,6 +166,20 @@ interrupts_reset (struct interrupts *interrupts)
memset (interrupts->interrupts, 0,
sizeof (interrupts->interrupts));
/* In bootstrap mode, initialize the vector table to point
to the RAM location. */
if (interrupts->cpu->cpu_mode == M6811_SMOD)
{
bfd_vma addr = interrupts->vectors_addr;
uint16 vector = 0x0100 - 3 * (M6811_INT_NUMBER - 1);
for (i = 0; i < M6811_INT_NUMBER; i++)
{
memory_write16 (interrupts->cpu, addr, vector);
addr += 2;
vector += 3;
}
}
}
static int
@ -517,7 +531,7 @@ interrupts_raise (struct interrupts *interrupts, enum M6811_INT number)
void
interrupts_info (SIM_DESC sd, struct interrupts *interrupts)
{
signed64 t;
signed64 t, prev_interrupt;
int i;
sim_io_printf (sd, "Interrupts Info:\n");
@ -533,21 +547,25 @@ interrupts_info (SIM_DESC sd, struct interrupts *interrupts)
interrupts->max_mask_cycles = t;
sim_io_printf (sd, " Current interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
}
t = interrupts->min_mask_cycles == CYCLES_MAX ?
interrupts->max_mask_cycles :
interrupts->min_mask_cycles;
sim_io_printf (sd, " Shortest interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
t = interrupts->max_mask_cycles;
sim_io_printf (sd, " Longest interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
t = interrupts->last_mask_cycles;
sim_io_printf (sd, " Last interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
if (interrupts->xirq_start_mask_cycle >= 0)
{
@ -558,22 +576,26 @@ interrupts_info (SIM_DESC sd, struct interrupts *interrupts)
interrupts->xirq_max_mask_cycles = t;
sim_io_printf (sd, " XIRQ Current interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
}
t = interrupts->xirq_min_mask_cycles == CYCLES_MAX ?
interrupts->xirq_max_mask_cycles :
interrupts->xirq_min_mask_cycles;
sim_io_printf (sd, " XIRQ Min interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
t = interrupts->xirq_max_mask_cycles;
sim_io_printf (sd, " XIRQ Max interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
t = interrupts->xirq_last_mask_cycles;
sim_io_printf (sd, " XIRQ Last interrupts masked sequence: %s\n",
cycle_to_string (interrupts->cpu, t));
cycle_to_string (interrupts->cpu, t,
PRINT_TIME | PRINT_CYCLE));
if (interrupts->pending_mask)
{
@ -590,6 +612,9 @@ interrupts_info (SIM_DESC sd, struct interrupts *interrupts)
sim_io_printf (sd, "\n");
}
prev_interrupt = 0;
sim_io_printf (sd, "N Interrupt Cycle Taken Latency"
" Delta between interrupts\n");
for (i = 0; i < MAX_INT_HISTORY; i++)
{
int which;
@ -604,10 +629,18 @@ interrupts_info (SIM_DESC sd, struct interrupts *interrupts)
break;
dt = h->taken_cycle - h->raised_cycle;
sim_io_printf (sd, "%2d %-10.10s %30.30s ", i,
sim_io_printf (sd, "%2d %-9.9s %15.15s ", i,
interrupt_names[h->type],
cycle_to_string (interrupts->cpu, h->taken_cycle));
sim_io_printf (sd, "%s\n",
cycle_to_string (interrupts->cpu, dt));
cycle_to_string (interrupts->cpu, h->taken_cycle, 0));
sim_io_printf (sd, "%15.15s",
cycle_to_string (interrupts->cpu, dt, 0));
if (prev_interrupt)
{
dt = prev_interrupt - h->taken_cycle;
sim_io_printf (sd, " %s",
cycle_to_string (interrupts->cpu, dt, PRINT_TIME));
}
sim_io_printf (sd, "\n");
prev_interrupt = h->taken_cycle;
}
}

14
sim/m68hc11/m68hc11_sim.c
View File

@ -27,6 +27,7 @@ enum {
OPTION_CPU_RESET = OPTION_START,
OPTION_EMUL_OS,
OPTION_CPU_CONFIG,
OPTION_CPU_BOOTSTRAP,
OPTION_CPU_MODE
};
@ -46,6 +47,10 @@ static const OPTION cpu_options[] =
'\0', NULL, "Specify the initial CPU configuration register",
cpu_option_handler },
{ {"bootstrap", no_argument, NULL, OPTION_CPU_BOOTSTRAP },
'\0', NULL, "Start the processing in bootstrap mode",
cpu_option_handler },
{ {NULL, no_argument, NULL, 0}, '\0', NULL, NULL, NULL }
};
@ -77,7 +82,11 @@ cpu_option_handler (SIM_DESC sd, sim_cpu *cpu,
else
cpu->cpu_use_local_config = 0;
break;
case OPTION_CPU_BOOTSTRAP:
cpu->cpu_start_mode = "bootstrap";
break;
case OPTION_CPU_MODE:
break;
}
@ -1049,7 +1058,8 @@ cpu_info (SIM_DESC sd, sim_cpu *cpu)
{
sim_io_printf (sd, "CPU info:\n");
sim_io_printf (sd, " Absolute cycle: %s\n",
cycle_to_string (cpu, cpu->cpu_absolute_cycle));
cycle_to_string (cpu, cpu->cpu_absolute_cycle,
PRINT_TIME | PRINT_CYCLE));
sim_io_printf (sd, " Syscall emulation: %s\n",
cpu->cpu_emul_syscall ? "yes, via 0xcd <n>" : "no");

5
sim/m68hc11/sim-main.h
View File

@ -200,6 +200,7 @@ struct _sim_cpu {
/* The mode in which the CPU is configured (MODA and MODB pins). */
unsigned int cpu_mode;
const char* cpu_start_mode;
/* The cpu being configured. */
enum cpu_type cpu_type;
@ -591,7 +592,9 @@ extern void sim_set_profile (int n);
extern void sim_set_profile_size (int n);
extern void sim_board_reset (SIM_DESC sd);
extern const char *cycle_to_string (sim_cpu *cpu, signed64 t);
#define PRINT_TIME 0x01
#define PRINT_CYCLE 0x02
extern const char *cycle_to_string (sim_cpu *cpu, signed64 t, int flags);
#endif