| 108 |
|
Display *x_display = NULL; // X11 display handle |
| 109 |
|
|
| 110 |
|
static int zero_fd = -1; // FD of /dev/zero |
| 111 |
– |
static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 111 |
|
static uint8 last_xpram[256]; // Buffer for monitoring XPRAM changes |
| 112 |
|
|
| 113 |
|
#ifdef HAVE_PTHREADS |
| 148 |
|
static void sigint_handler(...); |
| 149 |
|
#endif |
| 150 |
|
|
| 151 |
+ |
#if REAL_ADDRESSING |
| 152 |
+ |
static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 153 |
+ |
#endif |
| 154 |
+ |
|
| 155 |
|
#ifdef USE_MAPPED_MEMORY |
| 156 |
|
extern char *address_space, *good_address_map; |
| 157 |
|
#endif |
| 301 |
|
for (int i=0; i<0x80000; i+=4096) |
| 302 |
|
mmap(good_address_map + i + 0x00400000, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, good_address_fd, 0); |
| 303 |
|
#else |
| 304 |
< |
RAMBaseHost = new uint8[RAMSize]; |
| 305 |
< |
ROMBaseHost = new uint8[0x100000]; |
| 304 |
> |
RAMBaseHost = (uint8 *)malloc(RAMSize); |
| 305 |
> |
ROMBaseHost = (uint8 *)malloc(0x100000); |
| 306 |
|
#endif |
| 307 |
+ |
if (RAMBaseHost == NULL || ROMBaseHost == NULL) { |
| 308 |
+ |
ErrorAlert(GetString(STR_NO_MEM_ERR)); |
| 309 |
+ |
QuitEmulator(); |
| 310 |
+ |
} |
| 311 |
|
#if REAL_ADDRESSING && !EMULATED_68K |
| 312 |
|
RAMBaseMac = (uint32)RAMBaseHost; |
| 313 |
|
ROMBaseMac = (uint32)ROMBaseHost; |
| 435 |
|
|
| 436 |
|
// POSIX.4 timers and real-time signals available, start 60Hz timer |
| 437 |
|
sigemptyset(&timer_sa.sa_mask); |
| 438 |
< |
timer_sa.sa_sigaction = one_tick; |
| 438 |
> |
timer_sa.sa_sigaction = (void (*)(int, siginfo_t *, void *))one_tick; |
| 439 |
|
timer_sa.sa_flags = SA_SIGINFO | SA_RESTART; |
| 440 |
|
if (sigaction(SIG_TIMER, &timer_sa, NULL) < 0) { |
| 441 |
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_TIMER", strerror(errno)); |
| 565 |
|
ExitAll(); |
| 566 |
|
|
| 567 |
|
// Delete ROM area |
| 568 |
< |
delete[] ROMBaseHost; |
| 568 |
> |
if (ROMBaseHost) { |
| 569 |
> |
free(ROMBaseHost); |
| 570 |
> |
ROMBaseHost = NULL; |
| 571 |
> |
} |
| 572 |
|
|
| 573 |
|
// Delete RAM area |
| 574 |
< |
delete[] RAMBaseHost; |
| 574 |
> |
if (RAMBaseHost) { |
| 575 |
> |
free(RAMBaseHost); |
| 576 |
> |
RAMBaseHost = NULL; |
| 577 |
> |
} |
| 578 |
|
|
| 579 |
|
#if !EMULATED_68K |
| 580 |
|
// Delete scratch memory area |
| 581 |
< |
if (ScratchMem) |
| 581 |
> |
if (ScratchMem) { |
| 582 |
|
free((void *)(ScratchMem - SCRATCH_MEM_SIZE/2)); |
| 583 |
+ |
ScratchMem = NULL; |
| 584 |
+ |
} |
| 585 |
|
#endif |
| 586 |
|
|
| 587 |
|
#if REAL_ADDRESSING |
| 699 |
|
static void *xpram_func(void *arg) |
| 700 |
|
{ |
| 701 |
|
while (!xpram_thread_cancel) { |
| 702 |
< |
for (int i=0; i<60 && !xpram_thread_cancel; i++) { |
| 703 |
< |
#ifdef HAVE_NANOSLEEP |
| 689 |
< |
struct timespec req = {1, 0}; |
| 690 |
< |
nanosleep(&req, NULL); |
| 691 |
< |
#else |
| 692 |
< |
usleep(1000000); |
| 693 |
< |
#endif |
| 694 |
< |
} |
| 702 |
> |
for (int i=0; i<60 && !xpram_thread_cancel; i++) |
| 703 |
> |
Delay_usec(1000000); |
| 704 |
|
xpram_watchdog(); |
| 705 |
|
} |
| 706 |
|
return NULL; |
| 717 |
|
// Pseudo Mac 1Hz interrupt, update local time |
| 718 |
|
WriteMacInt32(0x20c, TimerDateTime()); |
| 719 |
|
|
| 720 |
< |
SetInterruptFlag(INTFLAG_60HZ); |
| 720 |
> |
SetInterruptFlag(INTFLAG_1HZ); |
| 721 |
|
TriggerInterrupt(); |
| 722 |
|
|
| 723 |
|
#ifndef HAVE_PTHREADS |
| 752 |
|
#ifdef HAVE_PTHREADS |
| 753 |
|
static void *tick_func(void *arg) |
| 754 |
|
{ |
| 755 |
+ |
uint64 next = GetTicks_usec(); |
| 756 |
|
while (!tick_thread_cancel) { |
| 747 |
– |
|
| 748 |
– |
// Wait |
| 749 |
– |
#ifdef HAVE_NANOSLEEP |
| 750 |
– |
struct timespec req = {0, 16625000}; |
| 751 |
– |
nanosleep(&req, NULL); |
| 752 |
– |
#else |
| 753 |
– |
usleep(16625); |
| 754 |
– |
#endif |
| 755 |
– |
|
| 756 |
– |
// Action |
| 757 |
|
one_tick(); |
| 758 |
+ |
next += 16625; |
| 759 |
+ |
int64 delay = next - GetTicks_usec(); |
| 760 |
+ |
if (delay > 0) |
| 761 |
+ |
Delay_usec(delay); |
| 762 |
+ |
else if (delay < -16625) |
| 763 |
+ |
next = GetTicks_usec(); |
| 764 |
|
} |
| 765 |
|
return NULL; |
| 766 |
|
} |
| 767 |
|
#endif |
| 768 |
|
|
| 769 |
|
|
| 770 |
+ |
/* |
| 771 |
+ |
* Get current value of microsecond timer |
| 772 |
+ |
*/ |
| 773 |
+ |
|
| 774 |
+ |
uint64 GetTicks_usec(void) |
| 775 |
+ |
{ |
| 776 |
+ |
#ifdef HAVE_CLOCK_GETTIME |
| 777 |
+ |
struct timespec t; |
| 778 |
+ |
clock_gettime(CLOCK_REALTIME, &t); |
| 779 |
+ |
return (uint64)t.tv_sec * 1000000 + t.tv_nsec / 1000; |
| 780 |
+ |
#else |
| 781 |
+ |
struct timeval t; |
| 782 |
+ |
gettimeofday(&t, NULL); |
| 783 |
+ |
return (uint64)t.tv_sec * 1000000 + t.tv_usec; |
| 784 |
+ |
#endif |
| 785 |
+ |
} |
| 786 |
+ |
|
| 787 |
+ |
|
| 788 |
+ |
/* |
| 789 |
+ |
* Delay by specified number of microseconds (<1 second) |
| 790 |
+ |
* (adapted from SDL_Delay() source) |
| 791 |
+ |
*/ |
| 792 |
+ |
|
| 793 |
+ |
void Delay_usec(uint32 usec) |
| 794 |
+ |
{ |
| 795 |
+ |
int was_error; |
| 796 |
+ |
#ifndef __linux__ // Non-Linux implementations need to calculate time left |
| 797 |
+ |
uint64 then, now, elapsed; |
| 798 |
+ |
#endif |
| 799 |
+ |
struct timeval tv; |
| 800 |
+ |
|
| 801 |
+ |
// Set the timeout interval - Linux only needs to do this once |
| 802 |
+ |
#ifdef __linux__ |
| 803 |
+ |
tv.tv_sec = 0; |
| 804 |
+ |
tv.tv_usec = usec; |
| 805 |
+ |
#else |
| 806 |
+ |
then = GetTicks_usec(); |
| 807 |
+ |
#endif |
| 808 |
+ |
do { |
| 809 |
+ |
errno = 0; |
| 810 |
+ |
#ifndef __linux__ |
| 811 |
+ |
/* Calculate the time interval left (in case of interrupt) */ |
| 812 |
+ |
now = GetTicks_usec(); |
| 813 |
+ |
elapsed = now - then; |
| 814 |
+ |
then = now; |
| 815 |
+ |
if (elapsed >= usec) |
| 816 |
+ |
break; |
| 817 |
+ |
usec -= elapsed; |
| 818 |
+ |
tv.tv_sec = 0; |
| 819 |
+ |
tv.tv_usec = usec; |
| 820 |
+ |
#endif |
| 821 |
+ |
was_error = select(0, NULL, NULL, NULL, &tv); |
| 822 |
+ |
} while (was_error && (errno == EINTR)); |
| 823 |
+ |
} |
| 824 |
+ |
|
| 825 |
+ |
|
| 826 |
|
#if !EMULATED_68K |
| 827 |
|
/* |
| 828 |
|
* Virtual 68k interrupt handler |
