25 |
* SUCH DAMAGE. |
* SUCH DAMAGE. |
26 |
* |
* |
27 |
* |
* |
28 |
* $Id: cpu.c,v 1.344 2006/06/24 21:47:22 debug Exp $ |
* $Id: cpu.c,v 1.348 2006/07/20 21:52:59 debug Exp $ |
29 |
* |
* |
30 |
* Common routines for CPU emulation. (Not specific to any CPU type.) |
* Common routines for CPU emulation. (Not specific to any CPU type.) |
31 |
*/ |
*/ |
42 |
#include "misc.h" |
#include "misc.h" |
43 |
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44 |
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extern int quiet_mode; |
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45 |
static struct cpu_family *first_cpu_family = NULL; |
static struct cpu_family *first_cpu_family = NULL; |
46 |
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47 |
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387 |
int te; |
int te; |
388 |
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389 |
/* |
/* |
390 |
* Two last ticks of every hardware device. This will allow |
* Two last ticks of every hardware device. This will allow e.g. |
391 |
* framebuffers to draw the last updates to the screen before |
* framebuffers to draw the last updates to the screen before halting. |
392 |
* halting. |
* |
393 |
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* TODO: This should be refactored when redesigning the mainbus |
394 |
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* concepts! |
395 |
*/ |
*/ |
396 |
for (te=0; te<machine->n_tick_entries; te++) { |
for (te=0; te<machine->n_tick_entries; te++) { |
397 |
machine->tick_func[te](machine->cpus[0], |
machine->tick_func[te](machine->cpus[0], |
400 |
machine->tick_extra[te]); |
machine->tick_extra[te]); |
401 |
} |
} |
402 |
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403 |
debug("cpu_run_deinit(): All CPUs halted.\n"); |
if (machine->show_nr_of_instructions) |
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if (machine->show_nr_of_instructions || !quiet_mode) |
|
404 |
cpu_show_cycles(machine, 1); |
cpu_show_cycles(machine, 1); |
405 |
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|
406 |
fflush(stdout); |
fflush(stdout); |
438 |
if (mseconds - mseconds_last == 0) |
if (mseconds - mseconds_last == 0) |
439 |
mseconds ++; |
mseconds ++; |
440 |
|
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441 |
ninstrs = machine->ncycles_since_gettimeofday; |
ninstrs = machine->ninstrs_since_gettimeofday; |
442 |
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443 |
if (machine->automatic_clock_adjustment) { |
if (machine->automatic_clock_adjustment) { |
444 |
static int first_adjustment = 1; |
static int first_adjustment = 1; |
470 |
if (!machine->show_nr_of_instructions && !forced) |
if (!machine->show_nr_of_instructions && !forced) |
471 |
goto do_return; |
goto do_return; |
472 |
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|
473 |
printf("[ %"PRIi64" instrs", (int64_t)machine->ncycles); |
printf("[ %"PRIi64" instrs", (int64_t)machine->ninstrs); |
474 |
|
|
475 |
if (!machine->automatic_clock_adjustment) { |
if (!machine->automatic_clock_adjustment) { |
476 |
d = machine->emulated_hz / 1000; |
d = machine->emulated_hz / 1000; |
477 |
if (d < 1) |
if (d < 1) |
478 |
d = 1; |
d = 1; |
479 |
ms = machine->ncycles / d; |
ms = machine->ninstrs / d; |
480 |
h = ms / 3600000; |
h = ms / 3600000; |
481 |
ms -= 3600000 * h; |
ms -= 3600000 * h; |
482 |
m = ms / 60000; |
m = ms / 60000; |
523 |
*/ |
*/ |
524 |
void cpu_run_init(struct machine *machine) |
void cpu_run_init(struct machine *machine) |
525 |
{ |
{ |
526 |
int ncpus = machine->ncpus; |
machine->ninstrs_flush = 0; |
527 |
int te; |
machine->ninstrs = 0; |
528 |
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machine->ninstrs_show = 0; |
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machine->a_few_cycles = 1048576; |
|
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machine->ncycles_flush = 0; |
|
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machine->ncycles = 0; |
|
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machine->ncycles_show = 0; |
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/* |
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* Instead of doing { one cycle, check hardware ticks }, we |
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* can do { n cycles, check hardware ticks }, as long as |
|
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* n is at most as much as the lowest number of cycles/tick |
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* for any hardware device. |
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*/ |
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for (te=0; te<machine->n_tick_entries; te++) { |
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if (machine->ticks_reset_value[te] < machine->a_few_cycles) |
|
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machine->a_few_cycles = machine->ticks_reset_value[te]; |
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} |
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machine->a_few_cycles >>= 1; |
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if (machine->a_few_cycles < 1) |
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machine->a_few_cycles = 1; |
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if (ncpus > 1) |
|
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machine->a_few_cycles = 1; |
|
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|
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/* debug("cpu_run_init(): a_few_cycles = %i\n", |
|
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machine->a_few_cycles); */ |
|
529 |
|
|
530 |
/* For performance measurement: */ |
/* For performance measurement: */ |
531 |
gettimeofday(&machine->starttime, NULL); |
gettimeofday(&machine->starttime, NULL); |
532 |
machine->ncycles_since_gettimeofday = 0; |
machine->ninstrs_since_gettimeofday = 0; |
533 |
} |
} |
534 |
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|
535 |
|
|
651 |
add_cpu_family(sparc_cpu_family_init, ARCH_SPARC); |
add_cpu_family(sparc_cpu_family_init, ARCH_SPARC); |
652 |
#endif |
#endif |
653 |
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|
654 |
|
#ifdef ENABLE_TRANSPUTER |
655 |
|
add_cpu_family(transputer_cpu_family_init, ARCH_TRANSPUTER); |
656 |
|
#endif |
657 |
|
|
658 |
#ifdef ENABLE_X86 |
#ifdef ENABLE_X86 |
659 |
add_cpu_family(x86_cpu_family_init, ARCH_X86); |
add_cpu_family(x86_cpu_family_init, ARCH_X86); |
660 |
#endif |
#endif |