| 1 |
|
/* |
| 2 |
|
* main_unix.cpp - Startup code for Unix |
| 3 |
|
* |
| 4 |
< |
* Basilisk II (C) 1997-2000 Christian Bauer |
| 4 |
> |
* Basilisk II (C) 1997-2001 Christian Bauer |
| 5 |
|
* |
| 6 |
|
* This program is free software; you can redistribute it and/or modify |
| 7 |
|
* it under the terms of the GNU General Public License as published by |
| 30 |
|
# include <pthread.h> |
| 31 |
|
#endif |
| 32 |
|
|
| 33 |
< |
#if defined(USE_MAPPED_MEMORY) || REAL_ADDRESSING |
| 33 |
> |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 34 |
|
# include <sys/mman.h> |
| 35 |
|
#endif |
| 36 |
|
|
| 50 |
|
|
| 51 |
|
#ifdef ENABLE_GTK |
| 52 |
|
# include <gtk/gtk.h> |
| 53 |
+ |
# include <gdk/gdk.h> |
| 54 |
|
#endif |
| 55 |
|
|
| 56 |
|
#ifdef ENABLE_XF86_DGA |
| 109 |
|
Display *x_display = NULL; // X11 display handle |
| 110 |
|
|
| 111 |
|
static int zero_fd = -1; // FD of /dev/zero |
| 111 |
– |
static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 112 |
|
static uint8 last_xpram[256]; // Buffer for monitoring XPRAM changes |
| 113 |
|
|
| 114 |
|
#ifdef HAVE_PTHREADS |
| 134 |
|
static struct sigaction sigill_sa; // Illegal instruction |
| 135 |
|
static void *sig_stack = NULL; // Stack for signal handlers |
| 136 |
|
uint16 EmulatedSR; // Emulated bits of SR (supervisor bit and interrupt mask) |
| 137 |
< |
uint32 ScratchMem = NULL; // Scratch memory for Mac ROM writes |
| 137 |
> |
#endif |
| 138 |
> |
|
| 139 |
> |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 140 |
> |
uint8 *ScratchMem = NULL; // Scratch memory for Mac ROM writes |
| 141 |
|
#endif |
| 142 |
|
|
| 143 |
|
static struct sigaction timer_sa; // sigaction used for timer |
| 152 |
|
static void sigint_handler(...); |
| 153 |
|
#endif |
| 154 |
|
|
| 155 |
< |
#ifdef USE_MAPPED_MEMORY |
| 156 |
< |
extern char *address_space, *good_address_map; |
| 155 |
> |
#if REAL_ADDRESSING |
| 156 |
> |
static bool lm_area_mapped = false; // Flag: Low Memory area mmap()ped |
| 157 |
> |
static bool memory_mapped_from_zero = false; // Flag: Could allocate RAM area from 0 |
| 158 |
> |
#endif |
| 159 |
> |
|
| 160 |
> |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 161 |
> |
static uint32 mapped_ram_rom_size; // Total size of mmap()ed RAM/ROM area |
| 162 |
|
#endif |
| 163 |
|
|
| 164 |
|
|
| 195 |
|
* Main program |
| 196 |
|
*/ |
| 197 |
|
|
| 198 |
+ |
static void usage(const char *prg_name) |
| 199 |
+ |
{ |
| 200 |
+ |
printf("Usage: %s [OPTION...]\n", prg_name); |
| 201 |
+ |
printf("\nUnix options:\n"); |
| 202 |
+ |
printf(" --display STRING\n X display to use\n"); |
| 203 |
+ |
printf(" --break ADDRESS\n set ROM breakpoint\n"); |
| 204 |
+ |
printf(" --rominfo\n dump ROM information\n"); |
| 205 |
+ |
PrefsPrintUsage(); |
| 206 |
+ |
exit(0); |
| 207 |
+ |
} |
| 208 |
+ |
|
| 209 |
|
int main(int argc, char **argv) |
| 210 |
|
{ |
| 211 |
|
char str[256]; |
| 220 |
|
printf(GetString(STR_ABOUT_TEXT1), VERSION_MAJOR, VERSION_MINOR); |
| 221 |
|
printf(" %s\n", GetString(STR_ABOUT_TEXT2)); |
| 222 |
|
|
| 223 |
< |
// Parse arguments |
| 223 |
> |
#ifdef ENABLE_GTK |
| 224 |
> |
// Init GTK |
| 225 |
> |
gtk_set_locale(); |
| 226 |
> |
gtk_init(&argc, &argv); |
| 227 |
> |
x_display_name = gdk_get_display(); // gtk_init() handles and removes the "--display" argument |
| 228 |
> |
#endif |
| 229 |
> |
|
| 230 |
> |
// Read preferences |
| 231 |
> |
PrefsInit(argc, argv); |
| 232 |
> |
|
| 233 |
> |
// Parse command line arguments |
| 234 |
|
for (int i=1; i<argc; i++) { |
| 235 |
< |
if (strcmp(argv[i], "-display") == 0 && ++i < argc) |
| 236 |
< |
x_display_name = argv[i]; |
| 237 |
< |
else if (strcmp(argv[i], "-break") == 0 && ++i < argc) |
| 238 |
< |
ROMBreakpoint = strtol(argv[i], NULL, 0); |
| 239 |
< |
else if (strcmp(argv[i], "-rominfo") == 0) |
| 235 |
> |
if (strcmp(argv[i], "--help") == 0) { |
| 236 |
> |
usage(argv[0]); |
| 237 |
> |
} else if (strcmp(argv[i], "--display") == 0) { |
| 238 |
> |
i++; |
| 239 |
> |
if (i < argc) |
| 240 |
> |
x_display_name = strdup(argv[i]); |
| 241 |
> |
} else if (strcmp(argv[i], "--break") == 0) { |
| 242 |
> |
i++; |
| 243 |
> |
if (i < argc) |
| 244 |
> |
ROMBreakpoint = strtol(argv[i], NULL, 0); |
| 245 |
> |
} else if (strcmp(argv[i], "--rominfo") == 0) { |
| 246 |
|
PrintROMInfo = true; |
| 247 |
+ |
} else if (argv[i][0] == '-') { |
| 248 |
+ |
fprintf(stderr, "Unrecognized option '%s'\n", argv[i]); |
| 249 |
+ |
usage(argv[0]); |
| 250 |
+ |
} |
| 251 |
|
} |
| 252 |
|
|
| 253 |
|
// Open display |
| 264 |
|
XF86DGAForkApp(DefaultScreen(x_display)); |
| 265 |
|
#endif |
| 266 |
|
|
| 228 |
– |
#ifdef ENABLE_GTK |
| 229 |
– |
// Init GTK |
| 230 |
– |
gtk_set_locale(); |
| 231 |
– |
gtk_init(&argc, &argv); |
| 232 |
– |
#endif |
| 233 |
– |
|
| 234 |
– |
// Read preferences |
| 235 |
– |
PrefsInit(); |
| 236 |
– |
|
| 267 |
|
// Init system routines |
| 268 |
|
SysInit(); |
| 269 |
|
|
| 287 |
|
RAMSize = 1024*1024; |
| 288 |
|
} |
| 289 |
|
|
| 290 |
+ |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 291 |
+ |
const uint32 page_size = getpagesize(); |
| 292 |
+ |
const uint32 page_mask = page_size - 1; |
| 293 |
+ |
const uint32 aligned_ram_size = (RAMSize + page_mask) & ~page_mask; |
| 294 |
+ |
mapped_ram_rom_size = aligned_ram_size + 0x100000; |
| 295 |
+ |
#endif |
| 296 |
+ |
|
| 297 |
|
#if REAL_ADDRESSING |
| 298 |
+ |
// Try to allocate the complete address space from zero |
| 299 |
+ |
// gb-- the Solaris manpage about mmap(2) states that using MAP_FIXED |
| 300 |
+ |
// implies undefined behaviour for further use of sbrk(), malloc(), etc. |
| 301 |
+ |
// cebix-- on NetBSD/m68k, this causes a segfault |
| 302 |
+ |
#if defined(OS_solaris) || defined(OS_netbsd) |
| 303 |
+ |
// Anyway, it doesn't work... |
| 304 |
+ |
if (0) { |
| 305 |
+ |
#else |
| 306 |
+ |
if (mmap((caddr_t)0x0000, mapped_ram_rom_size, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0) != MAP_FAILED) { |
| 307 |
+ |
#endif |
| 308 |
+ |
D(bug("Could allocate RAM and ROM from 0x0000\n")); |
| 309 |
+ |
memory_mapped_from_zero = true; |
| 310 |
+ |
} |
| 311 |
|
// Create Low Memory area (0x0000..0x2000) |
| 312 |
< |
if (mmap((char *)0x0000, 0x2000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0) == (void *)-1) { |
| 312 |
> |
else if (mmap((char *)0x0000, 0x2000, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, zero_fd, 0) != MAP_FAILED) { |
| 313 |
> |
D(bug("Could allocate the Low Memory globals\n")); |
| 314 |
> |
lm_area_mapped = true; |
| 315 |
> |
} |
| 316 |
> |
// Exit on error |
| 317 |
> |
else { |
| 318 |
|
sprintf(str, GetString(STR_LOW_MEM_MMAP_ERR), strerror(errno)); |
| 319 |
|
ErrorAlert(str); |
| 320 |
|
QuitEmulator(); |
| 321 |
|
} |
| 267 |
– |
lm_area_mapped = true; |
| 322 |
|
#endif |
| 323 |
|
|
| 324 |
< |
#if !EMULATED_68K |
| 324 |
> |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 325 |
|
// Allocate scratch memory |
| 326 |
< |
ScratchMem = (uint32)malloc(SCRATCH_MEM_SIZE); |
| 326 |
> |
ScratchMem = (uint8 *)malloc(SCRATCH_MEM_SIZE); |
| 327 |
|
if (ScratchMem == NULL) { |
| 328 |
|
ErrorAlert(GetString(STR_NO_MEM_ERR)); |
| 329 |
|
QuitEmulator(); |
| 332 |
|
#endif |
| 333 |
|
|
| 334 |
|
// Create areas for Mac RAM and ROM |
| 335 |
< |
#if defined(USE_MAPPED_MEMORY) |
| 336 |
< |
good_address_map = (char *)mmap(NULL, 1<<24, PROT_READ, MAP_PRIVATE, zero_fd, 0); |
| 337 |
< |
address_space = (char *)mmap(NULL, 1<<24, PROT_READ | PROT_WRITE, MAP_PRIVATE, zero_fd, 0); |
| 338 |
< |
if ((int)address_space < 0 || (int)good_address_map < 0) { |
| 339 |
< |
ErrorAlert(GetString(STR_NOT_ENOUGH_MEMORY_ERR)); |
| 340 |
< |
QuitEmulator(); |
| 341 |
< |
} |
| 342 |
< |
RAMBaseHost = (uint8 *)mmap(address_space, RAMSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, zero_fd, 0); |
| 343 |
< |
ROMBaseHost = (uint8 *)mmap(address_space + 0x00400000, 0x80000, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_FIXED, zero_fd, 0); |
| 344 |
< |
char *nam = tmpnam(NULL); |
| 345 |
< |
int good_address_fd = open(nam, O_CREAT | O_RDWR, 0600); |
| 346 |
< |
char buffer[4096]; |
| 347 |
< |
memset(buffer, 1, sizeof(buffer)); |
| 348 |
< |
write(good_address_fd, buffer, sizeof(buffer)); |
| 349 |
< |
unlink(nam); |
| 350 |
< |
for (int i=0; i<RAMSize; i+=4096) |
| 351 |
< |
mmap(good_address_map + i, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, good_address_fd, 0); |
| 352 |
< |
for (int i=0; i<0x80000; i+=4096) |
| 299 |
< |
mmap(good_address_map + i + 0x00400000, 4096, PROT_READ, MAP_FIXED | MAP_PRIVATE, good_address_fd, 0); |
| 335 |
> |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 336 |
> |
// gb-- Overkill, needs to be cleaned up. Probably explode it for either |
| 337 |
> |
// real or direct addressing mode. |
| 338 |
> |
#if REAL_ADDRESSING |
| 339 |
> |
if (memory_mapped_from_zero) { |
| 340 |
> |
RAMBaseHost = (uint8 *)0; |
| 341 |
> |
ROMBaseHost = RAMBaseHost + aligned_ram_size; |
| 342 |
> |
} |
| 343 |
> |
else |
| 344 |
> |
#endif |
| 345 |
> |
{ |
| 346 |
> |
RAMBaseHost = (uint8 *)mmap(0, mapped_ram_rom_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, zero_fd, 0); |
| 347 |
> |
if (RAMBaseHost == (uint8 *)MAP_FAILED) { |
| 348 |
> |
ErrorAlert(GetString(STR_NO_MEM_ERR)); |
| 349 |
> |
QuitEmulator(); |
| 350 |
> |
} |
| 351 |
> |
ROMBaseHost = RAMBaseHost + aligned_ram_size; |
| 352 |
> |
} |
| 353 |
|
#else |
| 354 |
< |
RAMBaseHost = new uint8[RAMSize]; |
| 355 |
< |
ROMBaseHost = new uint8[0x100000]; |
| 354 |
> |
RAMBaseHost = (uint8 *)malloc(RAMSize); |
| 355 |
> |
ROMBaseHost = (uint8 *)malloc(0x100000); |
| 356 |
> |
if (RAMBaseHost == NULL || ROMBaseHost == NULL) { |
| 357 |
> |
ErrorAlert(GetString(STR_NO_MEM_ERR)); |
| 358 |
> |
QuitEmulator(); |
| 359 |
> |
} |
| 360 |
> |
#endif |
| 361 |
> |
|
| 362 |
> |
#if DIRECT_ADDRESSING |
| 363 |
> |
// Initialize MEMBaseDiff now so that Host2MacAddr in the Video module |
| 364 |
> |
// will return correct results |
| 365 |
> |
RAMBaseMac = 0; |
| 366 |
> |
ROMBaseMac = RAMBaseMac + aligned_ram_size; |
| 367 |
> |
InitMEMBaseDiff(RAMBaseHost, RAMBaseMac); |
| 368 |
|
#endif |
| 369 |
< |
#if REAL_ADDRESSING && !EMULATED_68K |
| 369 |
> |
#if REAL_ADDRESSING // && !EMULATED_68K |
| 370 |
|
RAMBaseMac = (uint32)RAMBaseHost; |
| 371 |
|
ROMBaseMac = (uint32)ROMBaseHost; |
| 372 |
|
#endif |
| 373 |
|
D(bug("Mac RAM starts at %p (%08x)\n", RAMBaseHost, RAMBaseMac)); |
| 374 |
|
D(bug("Mac ROM starts at %p (%08x)\n", ROMBaseHost, ROMBaseMac)); |
| 375 |
< |
|
| 375 |
> |
|
| 376 |
|
// Get rom file path from preferences |
| 377 |
|
const char *rom_path = PrefsFindString("rom"); |
| 378 |
|
|
| 421 |
|
printf("WARNING: Cannot detect CPU type, assuming 68020\n"); |
| 422 |
|
CPUType = 2; |
| 423 |
|
} |
| 424 |
< |
FPUType = 0; //!! |
| 424 |
> |
FPUType = 1; // NetBSD has an FPU emulation, so the FPU ought to be available at all times |
| 425 |
|
TwentyFourBitAddressing = false; |
| 426 |
|
#endif |
| 427 |
|
|
| 484 |
|
#ifdef ENABLE_MON |
| 485 |
|
// Setup SIGINT handler to enter mon |
| 486 |
|
sigemptyset(&sigint_sa.sa_mask); |
| 487 |
< |
sigint_sa.sa_handler = sigint_handler; |
| 487 |
> |
sigint_sa.sa_handler = (void (*)(int))sigint_handler; |
| 488 |
|
sigint_sa.sa_flags = 0; |
| 489 |
|
sigaction(SIGINT, &sigint_sa, NULL); |
| 490 |
|
#endif |
| 493 |
|
|
| 494 |
|
// POSIX.4 timers and real-time signals available, start 60Hz timer |
| 495 |
|
sigemptyset(&timer_sa.sa_mask); |
| 496 |
< |
timer_sa.sa_sigaction = one_tick; |
| 496 |
> |
timer_sa.sa_sigaction = (void (*)(int, siginfo_t *, void *))one_tick; |
| 497 |
|
timer_sa.sa_flags = SA_SIGINFO | SA_RESTART; |
| 498 |
|
if (sigaction(SIG_TIMER, &timer_sa, NULL) < 0) { |
| 499 |
|
sprintf(str, GetString(STR_SIG_INSTALL_ERR), "SIG_TIMER", strerror(errno)); |
| 622 |
|
// Deinitialize everything |
| 623 |
|
ExitAll(); |
| 624 |
|
|
| 625 |
< |
// Delete ROM area |
| 626 |
< |
delete[] ROMBaseHost; |
| 627 |
< |
|
| 628 |
< |
// Delete RAM area |
| 629 |
< |
delete[] RAMBaseHost; |
| 625 |
> |
// Free ROM/RAM areas |
| 626 |
> |
#if REAL_ADDRESSING |
| 627 |
> |
if (memory_mapped_from_zero) |
| 628 |
> |
munmap((caddr_t)0x0000, mapped_ram_rom_size); |
| 629 |
> |
else |
| 630 |
> |
#endif |
| 631 |
> |
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
| 632 |
> |
if (RAMBaseHost != (uint8 *)MAP_FAILED) { |
| 633 |
> |
munmap((caddr_t)RAMBaseHost, mapped_ram_rom_size); |
| 634 |
> |
RAMBaseHost = NULL; |
| 635 |
> |
} |
| 636 |
> |
#else |
| 637 |
> |
if (ROMBaseHost) { |
| 638 |
> |
free(ROMBaseHost); |
| 639 |
> |
ROMBaseHost = NULL; |
| 640 |
> |
} |
| 641 |
> |
if (RAMBaseHost) { |
| 642 |
> |
free(RAMBaseHost); |
| 643 |
> |
RAMBaseHost = NULL; |
| 644 |
> |
} |
| 645 |
> |
#endif |
| 646 |
|
|
| 647 |
< |
#if !EMULATED_68K |
| 647 |
> |
#if USE_SCRATCHMEM_SUBTERFUGE |
| 648 |
|
// Delete scratch memory area |
| 649 |
< |
if (ScratchMem) |
| 649 |
> |
if (ScratchMem) { |
| 650 |
|
free((void *)(ScratchMem - SCRATCH_MEM_SIZE/2)); |
| 651 |
+ |
ScratchMem = NULL; |
| 652 |
+ |
} |
| 653 |
|
#endif |
| 654 |
|
|
| 655 |
|
#if REAL_ADDRESSING |
| 701 |
|
extern void m68k_dumpstate(uaecptr *nextpc); |
| 702 |
|
m68k_dumpstate(&nextpc); |
| 703 |
|
#else |
| 704 |
< |
char *arg[2] = {"rmon", NULL}; |
| 705 |
< |
mon(1, arg); |
| 704 |
> |
char *arg[4] = {"mon", "-m", "-r", NULL}; |
| 705 |
> |
mon(3, arg); |
| 706 |
|
QuitEmulator(); |
| 707 |
|
#endif |
| 708 |
|
} |
| 748 |
|
raise(SIG_IRQ); |
| 749 |
|
#endif |
| 750 |
|
} |
| 751 |
+ |
|
| 752 |
+ |
void TriggerNMI(void) |
| 753 |
+ |
{ |
| 754 |
+ |
// not yet supported |
| 755 |
+ |
} |
| 756 |
|
#endif |
| 757 |
|
|
| 758 |
|
|
| 772 |
|
static void *xpram_func(void *arg) |
| 773 |
|
{ |
| 774 |
|
while (!xpram_thread_cancel) { |
| 775 |
< |
for (int i=0; i<60 && !xpram_thread_cancel; i++) { |
| 776 |
< |
#ifdef HAVE_NANOSLEEP |
| 689 |
< |
struct timespec req = {1, 0}; |
| 690 |
< |
nanosleep(&req, NULL); |
| 691 |
< |
#else |
| 692 |
< |
usleep(1000000); |
| 693 |
< |
#endif |
| 694 |
< |
} |
| 775 |
> |
for (int i=0; i<60 && !xpram_thread_cancel; i++) |
| 776 |
> |
Delay_usec(999999); // Only wait 1 second so we quit promptly when xpram_thread_cancel becomes true |
| 777 |
|
xpram_watchdog(); |
| 778 |
|
} |
| 779 |
|
return NULL; |
| 790 |
|
// Pseudo Mac 1Hz interrupt, update local time |
| 791 |
|
WriteMacInt32(0x20c, TimerDateTime()); |
| 792 |
|
|
| 793 |
< |
SetInterruptFlag(INTFLAG_60HZ); |
| 793 |
> |
SetInterruptFlag(INTFLAG_1HZ); |
| 794 |
|
TriggerInterrupt(); |
| 795 |
|
|
| 796 |
|
#ifndef HAVE_PTHREADS |
| 825 |
|
#ifdef HAVE_PTHREADS |
| 826 |
|
static void *tick_func(void *arg) |
| 827 |
|
{ |
| 828 |
+ |
uint64 next = GetTicks_usec(); |
| 829 |
|
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 |
| 830 |
|
one_tick(); |
| 831 |
+ |
next += 16625; |
| 832 |
+ |
int64 delay = next - GetTicks_usec(); |
| 833 |
+ |
if (delay > 0) |
| 834 |
+ |
Delay_usec(delay); |
| 835 |
+ |
else if (delay < -16625) |
| 836 |
+ |
next = GetTicks_usec(); |
| 837 |
|
} |
| 838 |
|
return NULL; |
| 839 |
|
} |
| 840 |
|
#endif |
| 841 |
|
|
| 842 |
|
|
| 843 |
+ |
/* |
| 844 |
+ |
* Get current value of microsecond timer |
| 845 |
+ |
*/ |
| 846 |
+ |
|
| 847 |
+ |
uint64 GetTicks_usec(void) |
| 848 |
+ |
{ |
| 849 |
+ |
#ifdef HAVE_CLOCK_GETTIME |
| 850 |
+ |
struct timespec t; |
| 851 |
+ |
clock_gettime(CLOCK_REALTIME, &t); |
| 852 |
+ |
return (uint64)t.tv_sec * 1000000 + t.tv_nsec / 1000; |
| 853 |
+ |
#else |
| 854 |
+ |
struct timeval t; |
| 855 |
+ |
gettimeofday(&t, NULL); |
| 856 |
+ |
return (uint64)t.tv_sec * 1000000 + t.tv_usec; |
| 857 |
+ |
#endif |
| 858 |
+ |
} |
| 859 |
+ |
|
| 860 |
+ |
|
| 861 |
+ |
/* |
| 862 |
+ |
* Delay by specified number of microseconds (<1 second) |
| 863 |
+ |
* (adapted from SDL_Delay() source; this function is designed to provide |
| 864 |
+ |
* the highest accuracy possible) |
| 865 |
+ |
*/ |
| 866 |
+ |
|
| 867 |
+ |
#if defined(linux) |
| 868 |
+ |
// Linux select() changes its timeout parameter upon return to contain |
| 869 |
+ |
// the remaining time. Most other unixen leave it unchanged or undefined. |
| 870 |
+ |
#define SELECT_SETS_REMAINING |
| 871 |
+ |
#elif defined(__FreeBSD__) || defined(__sun__) |
| 872 |
+ |
#define USE_NANOSLEEP |
| 873 |
+ |
#elif defined(HAVE_PTHREADS) && defined(sgi) |
| 874 |
+ |
// SGI pthreads has a bug when using pthreads+signals+nanosleep, |
| 875 |
+ |
// so instead of using nanosleep, wait on a CV which is never signalled. |
| 876 |
+ |
#define USE_COND_TIMEDWAIT |
| 877 |
+ |
#endif |
| 878 |
+ |
|
| 879 |
+ |
void Delay_usec(uint32 usec) |
| 880 |
+ |
{ |
| 881 |
+ |
int was_error; |
| 882 |
+ |
|
| 883 |
+ |
#if defined(USE_NANOSLEEP) |
| 884 |
+ |
struct timespec elapsed, tv; |
| 885 |
+ |
#elif defined(USE_COND_TIMEDWAIT) |
| 886 |
+ |
// Use a local mutex and cv, so threads remain independent |
| 887 |
+ |
pthread_cond_t delay_cond = PTHREAD_COND_INITIALIZER; |
| 888 |
+ |
pthread_mutex_t delay_mutex = PTHREAD_MUTEX_INITIALIZER; |
| 889 |
+ |
struct timespec elapsed; |
| 890 |
+ |
uint64 future; |
| 891 |
+ |
#else |
| 892 |
+ |
struct timeval tv; |
| 893 |
+ |
#ifndef SELECT_SETS_REMAINING |
| 894 |
+ |
uint64 then, now, elapsed; |
| 895 |
+ |
#endif |
| 896 |
+ |
#endif |
| 897 |
+ |
|
| 898 |
+ |
// Set the timeout interval - Linux only needs to do this once |
| 899 |
+ |
#if defined(SELECT_SETS_REMAINING) |
| 900 |
+ |
tv.tv_sec = 0; |
| 901 |
+ |
tv.tv_usec = usec; |
| 902 |
+ |
#elif defined(USE_NANOSLEEP) |
| 903 |
+ |
elapsed.tv_sec = 0; |
| 904 |
+ |
elapsed.tv_nsec = usec * 1000; |
| 905 |
+ |
#elif defined(USE_COND_TIMEDWAIT) |
| 906 |
+ |
future = GetTicks_usec() + usec; |
| 907 |
+ |
elapsed.tv_sec = future / 1000000; |
| 908 |
+ |
elapsed.tv_nsec = (future % 1000000) * 1000; |
| 909 |
+ |
#else |
| 910 |
+ |
then = GetTicks_usec(); |
| 911 |
+ |
#endif |
| 912 |
+ |
|
| 913 |
+ |
do { |
| 914 |
+ |
errno = 0; |
| 915 |
+ |
#if defined(USE_NANOSLEEP) |
| 916 |
+ |
tv.tv_sec = elapsed.tv_sec; |
| 917 |
+ |
tv.tv_nsec = elapsed.tv_nsec; |
| 918 |
+ |
was_error = nanosleep(&tv, &elapsed); |
| 919 |
+ |
#elif defined(USE_COND_TIMEDWAIT) |
| 920 |
+ |
was_error = pthread_mutex_lock(&delay_mutex); |
| 921 |
+ |
was_error = pthread_cond_timedwait(&delay_cond, &delay_mutex, &elapsed); |
| 922 |
+ |
was_error = pthread_mutex_unlock(&delay_mutex); |
| 923 |
+ |
#else |
| 924 |
+ |
#ifndef SELECT_SETS_REMAINING |
| 925 |
+ |
// Calculate the time interval left (in case of interrupt) |
| 926 |
+ |
now = GetTicks_usec(); |
| 927 |
+ |
elapsed = now - then; |
| 928 |
+ |
then = now; |
| 929 |
+ |
if (elapsed >= usec) |
| 930 |
+ |
break; |
| 931 |
+ |
usec -= elapsed; |
| 932 |
+ |
tv.tv_sec = 0; |
| 933 |
+ |
tv.tv_usec = usec; |
| 934 |
+ |
#endif |
| 935 |
+ |
was_error = select(0, NULL, NULL, NULL, &tv); |
| 936 |
+ |
#endif |
| 937 |
+ |
} while (was_error && (errno == EINTR)); |
| 938 |
+ |
} |
| 939 |
+ |
|
| 940 |
+ |
|
| 941 |
|
#if !EMULATED_68K |
| 942 |
|
/* |
| 943 |
|
* Virtual 68k interrupt handler |
| 988 |
|
|
| 989 |
|
#define STORE_SR(v) \ |
| 990 |
|
scp->sc_ps = (v) & 0xff; \ |
| 991 |
< |
EmulatedSR = (v) & 0x2700; \ |
| 991 |
> |
EmulatedSR = (v) & 0xe700; \ |
| 992 |
|
if (((v) & 0x0700) == 0 && InterruptFlags) \ |
| 993 |
|
TriggerInterrupt(); |
| 994 |
|
|
| 1051 |
|
case 0x007c: { // ori #xxxx,sr |
| 1052 |
|
uint16 sr = GET_SR | pc[1]; |
| 1053 |
|
scp->sc_ps = sr & 0xff; // oring bits into the sr can't enable interrupts, so we don't need to call STORE_SR |
| 1054 |
< |
EmulatedSR = sr & 0x2700; |
| 1054 |
> |
EmulatedSR = sr & 0xe700; |
| 1055 |
|
INC_PC(4); |
| 1056 |
|
break; |
| 1057 |
|
} |
| 1128 |
|
} |
| 1129 |
|
|
| 1130 |
|
case 0xf327: // fsave -(sp) |
| 1131 |
< |
goto ill; //!! |
| 1131 |
> |
if (CPUIs68060) { |
| 1132 |
> |
regs->a[7] -= 4; |
| 1133 |
> |
WriteMacInt32(regs->a[7], 0x60000000); // Idle frame |
| 1134 |
> |
regs->a[7] -= 4; |
| 1135 |
> |
WriteMacInt32(regs->a[7], 0); |
| 1136 |
> |
regs->a[7] -= 4; |
| 1137 |
> |
WriteMacInt32(regs->a[7], 0); |
| 1138 |
> |
} else { |
| 1139 |
> |
regs->a[7] -= 4; |
| 1140 |
> |
WriteMacInt32(regs->a[7], 0x41000000); // Idle frame |
| 1141 |
> |
} |
| 1142 |
> |
scp->sc_sp = regs->a[7]; |
| 1143 |
> |
INC_PC(2); |
| 1144 |
> |
break; |
| 1145 |
|
|
| 1146 |
|
case 0xf35f: // frestore (sp)+ |
| 1147 |
< |
goto ill; //!! |
| 1147 |
> |
if (CPUIs68060) |
| 1148 |
> |
regs->a[7] += 12; |
| 1149 |
> |
else |
| 1150 |
> |
regs->a[7] += 4; |
| 1151 |
> |
scp->sc_sp = regs->a[7]; |
| 1152 |
> |
INC_PC(2); |
| 1153 |
> |
break; |
| 1154 |
|
|
| 1155 |
< |
case 0x4e73: { // rte (only handles format 0) |
| 1155 |
> |
case 0x4e73: { // rte |
| 1156 |
|
uint32 a7 = regs->a[7]; |
| 1157 |
|
uint16 sr = ReadMacInt16(a7); |
| 1158 |
|
a7 += 2; |
| 1159 |
|
scp->sc_ps = sr & 0xff; |
| 1160 |
< |
EmulatedSR = sr & 0x2700; |
| 1160 |
> |
EmulatedSR = sr & 0xe700; |
| 1161 |
|
scp->sc_pc = ReadMacInt32(a7); |
| 1162 |
< |
a7 += 6; |
| 1163 |
< |
scp->sc_sp = regs->a[7] = a7; |
| 1162 |
> |
a7 += 4; |
| 1163 |
> |
uint16 format = ReadMacInt16(a7) >> 12; |
| 1164 |
> |
a7 += 2; |
| 1165 |
> |
static const int frame_adj[16] = { |
| 1166 |
> |
0, 0, 4, 4, 8, 0, 0, 52, 50, 12, 24, 84, 16, 0, 0, 0 |
| 1167 |
> |
}; |
| 1168 |
> |
scp->sc_sp = regs->a[7] = a7 + frame_adj[format]; |
| 1169 |
|
break; |
| 1170 |
|
} |
| 1171 |
|
|
| 1172 |
|
case 0x4e7a: // movec cr,x |
| 1173 |
|
switch (pc[1]) { |
| 973 |
– |
case 0x8801: // movec vbr,a0 |
| 974 |
– |
regs->a[0] = 0; |
| 975 |
– |
break; |
| 976 |
– |
case 0x9801: // movec vbr,a1 |
| 977 |
– |
regs->a[1] = 0; |
| 978 |
– |
break; |
| 1174 |
|
case 0x0002: // movec cacr,d0 |
| 1175 |
|
regs->d[0] = 0x3111; |
| 1176 |
|
break; |
| 1178 |
|
regs->d[1] = 0x3111; |
| 1179 |
|
break; |
| 1180 |
|
case 0x0003: // movec tc,d0 |
| 1181 |
+ |
case 0x0004: // movec itt0,d0 |
| 1182 |
+ |
case 0x0005: // movec itt1,d0 |
| 1183 |
+ |
case 0x0006: // movec dtt0,d0 |
| 1184 |
+ |
case 0x0007: // movec dtt1,d0 |
| 1185 |
+ |
case 0x0806: // movec urp,d0 |
| 1186 |
+ |
case 0x0807: // movec srp,d0 |
| 1187 |
|
regs->d[0] = 0; |
| 1188 |
|
break; |
| 1189 |
+ |
case 0x1000: // movec sfc,d1 |
| 1190 |
+ |
case 0x1001: // movec dfc,d1 |
| 1191 |
|
case 0x1003: // movec tc,d1 |
| 1192 |
+ |
case 0x1801: // movec vbr,d1 |
| 1193 |
|
regs->d[1] = 0; |
| 1194 |
|
break; |
| 1195 |
+ |
case 0x8801: // movec vbr,a0 |
| 1196 |
+ |
regs->a[0] = 0; |
| 1197 |
+ |
break; |
| 1198 |
+ |
case 0x9801: // movec vbr,a1 |
| 1199 |
+ |
regs->a[1] = 0; |
| 1200 |
+ |
break; |
| 1201 |
|
default: |
| 1202 |
|
goto ill; |
| 1203 |
|
} |
| 1206 |
|
|
| 1207 |
|
case 0x4e7b: // movec x,cr |
| 1208 |
|
switch (pc[1]) { |
| 1209 |
+ |
case 0x1000: // movec d1,sfc |
| 1210 |
+ |
case 0x1001: // movec d1,dfc |
| 1211 |
|
case 0x0801: // movec d0,vbr |
| 1212 |
+ |
case 0x1801: // movec d1,vbr |
| 1213 |
|
break; |
| 1214 |
|
case 0x0002: // movec d0,cacr |
| 1215 |
|
case 0x1002: // movec d1,cacr |
| 1244 |
|
printf(" a%d %08x\n", i, state->ss_frame.f_regs[i+8]); |
| 1245 |
|
|
| 1246 |
|
#ifdef ENABLE_MON |
| 1247 |
< |
char *arg[2] = {"rmon", NULL}; |
| 1248 |
< |
mon(1, arg); |
| 1247 |
> |
char *arg[4] = {"mon", "-m", "-r", NULL}; |
| 1248 |
> |
mon(3, arg); |
| 1249 |
|
#endif |
| 1250 |
|
QuitEmulator(); |
| 1251 |
|
break; |
