3 #include "platforms/platforms.h"
4 #include "input/input.h"
6 #include "platforms/amiga/Gayle.h"
7 #include "platforms/amiga/amiga-registers.h"
8 #include "platforms/amiga/rtg/rtg.h"
9 #include "platforms/amiga/hunk-reloc.h"
10 #include "platforms/amiga/piscsi/piscsi.h"
11 #include "platforms/amiga/piscsi/piscsi-enums.h"
12 #include "platforms/amiga/net/pi-net.h"
13 #include "platforms/amiga/net/pi-net-enums.h"
14 #include "gpio/ps_protocol.h"
28 #include <sys/ioctl.h>
31 #include <sys/types.h>
34 #define KEY_POLL_INTERVAL_MSEC 5000
36 unsigned char read_ranges;
37 unsigned int read_addr[8];
38 unsigned int read_upper[8];
39 unsigned char *read_data[8];
40 unsigned char write_ranges;
41 unsigned int write_addr[8];
42 unsigned int write_upper[8];
43 unsigned char *write_data[8];
45 int kb_hook_enabled = 0;
46 int mouse_hook_enabled = 0;
47 int cpu_emulation_running = 1;
49 uint8_t mouse_dx = 0, mouse_dy = 0;
50 uint8_t mouse_buttons = 0;
51 uint8_t mouse_extra = 0;
53 extern uint8_t gayle_int;
54 extern uint8_t gayle_ide_enabled;
55 extern uint8_t gayle_emulation_enabled;
56 extern uint8_t gayle_a4k_int;
57 extern volatile unsigned int *gpio;
58 extern volatile uint16_t srdata;
59 extern uint8_t realtime_graphics_debug;
60 uint8_t realtime_disassembly, int2_enabled = 0;
61 uint32_t do_disasm = 0, old_level;
62 uint32_t last_irq = 8, last_last_irq = 8;
64 uint8_t end_signal = 0;
66 char disasm_buf[4096];
68 #define KICKBASE 0xF80000
69 #define KICKSIZE 0x7FFFF
71 int mem_fd, mouse_fd = -1, keyboard_fd = -1;
80 extern m68ki_cpu_core m68ki_cpu;
81 extern int m68ki_initial_cycles;
82 extern int m68ki_remaining_cycles;
84 #define M68K_SET_IRQ(i) old_level = CPU_INT_LEVEL; \
85 CPU_INT_LEVEL = (i << 8); \
86 if(old_level != 0x0700 && CPU_INT_LEVEL == 0x0700) \
87 m68ki_cpu.nmi_pending = TRUE;
88 #define M68K_END_TIMESLICE m68ki_initial_cycles = GET_CYCLES(); \
91 #define M68K_SET_IRQ m68k_set_irq
92 #define M68K_END_TIMESLICE m68k_end_timeslice()
95 #define NOP asm("nop"); asm("nop"); asm("nop"); asm("nop");
97 #define DEBUG_EMULATOR
104 // Configurable emulator options
105 unsigned int cpu_type = M68K_CPU_TYPE_68000;
106 unsigned int loop_cycles = 300, irq_status = 0;
107 struct emulator_config *cfg = NULL;
108 char keyboard_file[256] = "/dev/input/event1";
110 uint64_t trig_irq = 0, serv_irq = 0;
111 uint16_t irq_delay = 0;
112 unsigned int amiga_reset=0, amiga_reset_last=0;
113 unsigned int do_reset=0;
115 void *ipl_task(void *args) {
116 printf("IPL thread running\n");
117 uint16_t old_irq = 0;
121 value = *(gpio + 13);
123 if (!(value & (1 << PIN_IPL_ZERO))) {
146 amiga_reset=(value & (1 << PIN_RESET));
147 if(amiga_reset!=amiga_reset_last)
149 amiga_reset_last=amiga_reset;
152 printf("Amiga Reset is down...\n");
158 printf("Amiga Reset is up...\n");
163 /*if (gayle_ide_enabled) {
164 if (((gayle_int & 0x80) || gayle_a4k_int) && (get_ide(0)->drive[0].intrq || get_ide(0)->drive[1].intrq)) {
165 //get_ide(0)->drive[0].intrq = 0;
174 NOP NOP NOP NOP NOP NOP NOP NOP
175 //NOP NOP NOP NOP NOP NOP NOP NOP
176 //NOP NOP NOP NOP NOP NOP NOP NOP
177 /*NOP NOP NOP NOP NOP NOP NOP NOP
178 NOP NOP NOP NOP NOP NOP NOP NOP
179 NOP NOP NOP NOP NOP NOP NOP NOP*/
188 if (mouse_hook_enabled) {
189 get_mouse_status(&mouse_dx, &mouse_dy, &mouse_buttons, &mouse_extra);
192 if (realtime_disassembly && (do_disasm || cpu_emulation_running)) {
193 m68k_disassemble(disasm_buf, m68k_get_reg(NULL, M68K_REG_PC), cpu_type);
194 printf("REGA: 0:$%.8X 1:$%.8X 2:$%.8X 3:$%.8X 4:$%.8X 5:$%.8X 6:$%.8X 7:$%.8X\n", m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), m68k_get_reg(NULL, M68K_REG_A2), m68k_get_reg(NULL, M68K_REG_A3), \
195 m68k_get_reg(NULL, M68K_REG_A4), m68k_get_reg(NULL, M68K_REG_A5), m68k_get_reg(NULL, M68K_REG_A6), m68k_get_reg(NULL, M68K_REG_A7));
196 printf("REGD: 0:$%.8X 1:$%.8X 2:$%.8X 3:$%.8X 4:$%.8X 5:$%.8X 6:$%.8X 7:$%.8X\n", m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_D2), m68k_get_reg(NULL, M68K_REG_D3), \
197 m68k_get_reg(NULL, M68K_REG_D4), m68k_get_reg(NULL, M68K_REG_D5), m68k_get_reg(NULL, M68K_REG_D6), m68k_get_reg(NULL, M68K_REG_D7));
198 printf("%.8X (%.8X)]] %s\n", m68k_get_reg(NULL, M68K_REG_PC), (m68k_get_reg(NULL, M68K_REG_PC) & 0xFFFFFF), disasm_buf);
204 if (cpu_emulation_running)
205 m68k_execute(loop_cycles);
210 last_irq = ((read_reg() & 0xe000) >> 13);
211 if (last_irq != last_last_irq) {
212 last_last_irq = last_irq;
213 M68K_SET_IRQ(last_irq);
217 if (gayleirq && int2_enabled) {
218 write16(0xdff09c, 0x8000 | (1 << 3) && last_irq != 2);
219 last_last_irq = last_irq;
230 last_last_irq = last_irq;
238 usleep(1000000); // 1sec
239 // while(amiga_reset==0);
240 // printf("CPU emulation reset.\n");
243 if (mouse_hook_enabled && (mouse_extra != 0x00)) {
244 // mouse wheel events have occurred; unlike l/m/r buttons, these are queued as keypresses, so add to end of buffer
245 switch (mouse_extra) {
248 queue_keypress(0xfe, KEYPRESS_PRESS, PLATFORM_AMIGA);
252 queue_keypress(0xff, KEYPRESS_PRESS, PLATFORM_AMIGA);
256 // dampen the scroll wheel until next while loop iteration
261 goto stop_cpu_emulation;
266 printf("[CPU] End of CPU thread\n");
269 void *keyboard_task() {
270 struct pollfd kbdpoll[1];
272 char c = 0, c_code = 0, c_type = 0;
273 char grab_message[] = "[KBD] Grabbing keyboard from input layer\n",
274 ungrab_message[] = "[KBD] Ungrabbing keyboard\n";
276 printf("[KBD] Keyboard thread started\n");
278 // because we permit the keyboard to be grabbed on startup, quickly check if we need to grab it
279 if (kb_hook_enabled && cfg->keyboard_grab) {
280 printf(grab_message);
281 grab_device(keyboard_fd);
284 kbdpoll[0].fd = keyboard_fd;
285 kbdpoll[0].events = POLLIN;
288 kpollrc = poll(kbdpoll, 1, KEY_POLL_INTERVAL_MSEC);
289 if ((kpollrc > 0) && (kbdpoll[0].revents & POLLHUP)) {
290 // in the event that a keyboard is unplugged, keyboard_task will whiz up to 100% utilisation
291 // this is undesired, so if the keyboard HUPs, end the thread without ending the emulation
292 printf("[KBD] Keyboard node returned HUP (unplugged?)\n");
296 // if kpollrc > 0 then it contains number of events to pull, also check if POLLIN is set in revents
297 if ((kpollrc <= 0) || !(kbdpoll[0].revents & POLLIN)) {
301 while (get_key_char(&c, &c_code, &c_type)) {
302 if (c && c == cfg->keyboard_toggle_key && !kb_hook_enabled) {
304 printf("[KBD] Keyboard hook enabled.\n");
305 if (cfg->keyboard_grab) {
306 grab_device(keyboard_fd);
307 printf(grab_message);
309 } else if (kb_hook_enabled) {
310 if (c == 0x1B && c_type) {
312 printf("[KBD] Keyboard hook disabled.\n");
313 if (cfg->keyboard_grab) {
314 release_device(keyboard_fd);
315 printf(ungrab_message);
318 if (queue_keypress(c_code, c_type, cfg->platform->id) && int2_enabled && last_irq != 2) {
325 // pause pressed; trigger nmi (int level 7)
326 if (c == 0x01 && c_type) {
327 printf("[INT] Sending NMI\n");
331 if (!kb_hook_enabled && c_type) {
332 if (c && c == cfg->mouse_toggle_key) {
333 mouse_hook_enabled ^= 1;
334 printf("Mouse hook %s.\n", mouse_hook_enabled ? "enabled" : "disabled");
335 mouse_dx = mouse_dy = mouse_buttons = mouse_extra = 0;
338 cpu_emulation_running ^= 1;
339 printf("CPU emulation is now %s\n", cpu_emulation_running ? "running" : "stopped");
342 realtime_graphics_debug ^= 1;
343 printf("Real time graphics debug is now %s\n", realtime_graphics_debug ? "on" : "off");
347 //m68k_pulse_reset();
348 printf("CPU emulation reset.\n");
351 printf("Quitting and exiting emulator.\n");
356 realtime_disassembly ^= 1;
358 printf("Real time disassembly is now %s\n", realtime_disassembly ? "on" : "off");
361 int r = get_mapped_item_by_address(cfg, 0x08000000);
363 printf("Dumping first 16MB of mapped range %d.\n", r);
364 FILE *dmp = fopen("./memdmp.bin", "wb+");
365 fwrite(cfg->map_data[r], 16 * SIZE_MEGA, 1, dmp);
369 if (c == 's' && realtime_disassembly) {
372 if (c == 'S' && realtime_disassembly) {
381 printf("[KBD] Keyboard thread ending\n");
382 if (cfg->keyboard_grab) {
383 printf(ungrab_message);
384 release_device(keyboard_fd);
389 void stop_cpu_emulation(uint8_t disasm_cur) {
392 m68k_disassemble(disasm_buf, m68k_get_reg(NULL, M68K_REG_PC), cpu_type);
393 printf("REGA: 0:$%.8X 1:$%.8X 2:$%.8X 3:$%.8X 4:$%.8X 5:$%.8X 6:$%.8X 7:$%.8X\n", m68k_get_reg(NULL, M68K_REG_A0), m68k_get_reg(NULL, M68K_REG_A1), m68k_get_reg(NULL, M68K_REG_A2), m68k_get_reg(NULL, M68K_REG_A3), \
394 m68k_get_reg(NULL, M68K_REG_A4), m68k_get_reg(NULL, M68K_REG_A5), m68k_get_reg(NULL, M68K_REG_A6), m68k_get_reg(NULL, M68K_REG_A7));
395 printf("REGD: 0:$%.8X 1:$%.8X 2:$%.8X 3:$%.8X 4:$%.8X 5:$%.8X 6:$%.8X 7:$%.8X\n", m68k_get_reg(NULL, M68K_REG_D0), m68k_get_reg(NULL, M68K_REG_D1), m68k_get_reg(NULL, M68K_REG_D2), m68k_get_reg(NULL, M68K_REG_D3), \
396 m68k_get_reg(NULL, M68K_REG_D4), m68k_get_reg(NULL, M68K_REG_D5), m68k_get_reg(NULL, M68K_REG_D6), m68k_get_reg(NULL, M68K_REG_D7));
397 printf("%.8X (%.8X)]] %s\n", m68k_get_reg(NULL, M68K_REG_PC), (m68k_get_reg(NULL, M68K_REG_PC) & 0xFFFFFF), disasm_buf);
398 realtime_disassembly = 1;
401 cpu_emulation_running = 0;
406 static volatile unsigned char maprom;
408 void sigint_handler(int sig_num) {
410 //cpu_emulation_running = 0;
413 printf("Received sigint %d, exiting.\n", sig_num);
419 if (cfg->platform->shutdown) {
420 cfg->platform->shutdown(cfg);
423 printf("IRQs triggered: %lld\n", trig_irq);
424 printf("IRQs serviced: %lld\n", serv_irq);
429 int main(int argc, char *argv[]) {
431 //const struct sched_param priority = {99};
434 irq_delay = atoi(argv[1]);
435 printf("Setting IRQ delay to %d loops (%s).\n", irq_delay, argv[1]);
438 // Some command line switch stuffles
439 for (g = 1; g < argc; g++) {
440 if (strcmp(argv[g], "--cpu_type") == 0 || strcmp(argv[g], "--cpu") == 0) {
442 printf("%s switch found, but no CPU type specified.\n", argv[g]);
445 cpu_type = get_m68k_cpu_type(argv[g]);
448 else if (strcmp(argv[g], "--config-file") == 0 || strcmp(argv[g], "--config") == 0) {
450 printf("%s switch found, but no config filename specified.\n", argv[g]);
453 cfg = load_config_file(argv[g]);
456 else if (strcmp(argv[g], "--keyboard-file") == 0 || strcmp(argv[g], "--kbfile") == 0) {
458 printf("%s switch found, but no keyboard device path specified.\n", argv[g]);
461 strcpy(keyboard_file, argv[g]);
467 printf("No config file specified. Trying to load default.cfg...\n");
468 cfg = load_config_file("default.cfg");
470 printf("Couldn't load default.cfg, empty emulator config will be used.\n");
471 cfg = (struct emulator_config *)calloc(1, sizeof(struct emulator_config));
473 printf("Failed to allocate memory for emulator config!\n");
476 memset(cfg, 0x00, sizeof(struct emulator_config));
481 if (cfg->cpu_type) cpu_type = cfg->cpu_type;
482 if (cfg->loop_cycles) loop_cycles = cfg->loop_cycles;
485 cfg->platform = make_platform_config("none", "generic");
486 cfg->platform->platform_initial_setup(cfg);
489 if (cfg->mouse_enabled) {
490 mouse_fd = open(cfg->mouse_file, O_RDWR | O_NONBLOCK);
491 if (mouse_fd == -1) {
492 printf("Failed to open %s, can't enable mouse hook.\n", cfg->mouse_file);
493 cfg->mouse_enabled = 0;
496 * *-*-*-* magic numbers! *-*-*-*
497 * great, so waaaay back in the history of the pc, the ps/2 protocol set the standard for mice
498 * and in the process, the mouse sample rate was defined as a way of putting mice into vendor-specific modes.
499 * as the ancient gpm command explains, almost everything except incredibly old mice talk the IntelliMouse
500 * protocol, which reports four bytes. by default, every mouse starts in 3-byte mode (don't report wheel or
501 * additional buttons) until imps2 magic is sent. so, command $f3 is "set sample rate", followed by a byte.
503 uint8_t mouse_init[] = { 0xf4, 0xf3, 0x64 }; // enable, then set sample rate 100
504 uint8_t imps2_init[] = { 0xf3, 0xc8, 0xf3, 0x64, 0xf3, 0x50 }; // magic sequence; set sample 200, 100, 80
505 if (write(mouse_fd, mouse_init, sizeof(mouse_init)) != -1) {
506 if (write(mouse_fd, imps2_init, sizeof(imps2_init)) == -1)
507 printf("[MOUSE] Couldn't enable scroll wheel events; is this mouse from the 1980s?\n");
509 printf("[MOUSE] Mouse didn't respond to normal PS/2 init; have you plugged a brick in by mistake?\n");
513 if (cfg->keyboard_file)
514 keyboard_fd = open(cfg->keyboard_file, O_RDONLY | O_NONBLOCK);
516 keyboard_fd = open(keyboard_file, O_RDONLY | O_NONBLOCK);
518 if (keyboard_fd == -1) {
519 printf("Failed to open keyboard event source.\n");
522 if (cfg->mouse_autoconnect)
523 mouse_hook_enabled = 1;
525 if (cfg->keyboard_autoconnect)
530 signal(SIGINT, sigint_handler);
533 //goto skip_everything;
535 // Enable 200MHz CLK output on GPIO4, adjust divider and pll source depending
537 printf("Enable 200MHz GPCLK0 on GPIO4\n");
538 gpio_enable_200mhz();
540 // reset cpld statemachine first
548 // reset amiga and statemachine
554 printf("Setting CPU type to %d.\n", cpu_type);
555 m68k_set_cpu_type(cpu_type);
559 m68k_set_reg(M68K_REG_PC, 0xF80002);
561 m68k_set_reg(M68K_REG_PC, 0x0);
564 ps_reset_state_machine();
569 printf("Setting CPU type to %d.\n", cpu_type);
570 m68k_set_cpu_type(cpu_type);
573 pthread_t ipl_tid, cpu_tid, kbd_tid;
575 err = pthread_create(&ipl_tid, NULL, &ipl_task, NULL);
577 printf("[ERROR] Cannot create IPL thread: [%s]", strerror(err));
579 pthread_setname_np(ipl_tid, "pistorm: ipl");
580 printf("IPL thread created successfully\n");
583 // create keyboard task
584 err = pthread_create(&kbd_tid, NULL, &keyboard_task, NULL);
586 printf("[ERROR] Cannot create keyboard thread: [%s]", strerror(err));
588 pthread_setname_np(kbd_tid, "pistorm: kbd");
589 printf("[MAIN] Keyboard thread created successfully\n");
593 err = pthread_create(&cpu_tid, NULL, &cpu_task, NULL);
595 printf("[ERROR] Cannot create CPU thread: [%s]", strerror(err));
597 pthread_setname_np(cpu_tid, "pistorm: cpu");
598 printf("[MAIN] CPU thread created successfully\n");
601 // wait for cpu task to end before closing up and finishing
602 pthread_join(cpu_tid, NULL);
603 printf("[MAIN] All threads appear to have concluded; ending process\n");
613 void cpu_pulse_reset(void) {
616 // printf("Status Reg%x\n",read_reg());
619 // printf("Status Reg%x\n",read_reg());
620 if (cfg->platform->handle_reset)
621 cfg->platform->handle_reset(cfg);
623 //m68k_write_memory_16(INTENA, 0x7FFF);
625 m68k_write_memory_8(0xbfe201, 0x0001); // AMIGA OVL
626 m68k_write_memory_8(0xbfe001, 0x0001); // AMIGA OVL high (ROM@0x0)
631 int cpu_irq_ack(int level) {
632 printf("cpu irq ack\n");
636 static unsigned int target = 0;
637 static uint8_t send_keypress = 0;
639 uint8_t cdtv_dmac_reg_idx_read();
640 void cdtv_dmac_reg_idx_write(uint8_t value);
641 uint32_t cdtv_dmac_read(uint32_t address, uint8_t type);
642 void cdtv_dmac_write(uint32_t address, uint32_t value, uint8_t type);
644 #define PLATFORM_CHECK_READ(a) \
645 if (address >= cfg->custom_low && address < cfg->custom_high) { \
646 unsigned int target = 0; \
647 switch(cfg->platform->id) { \
648 case PLATFORM_AMIGA: { \
649 if (address >= PISCSI_OFFSET && address < PISCSI_UPPER) { \
650 return handle_piscsi_read(address, a); \
652 if (address >= PINET_OFFSET && address < PINET_UPPER) { \
653 return handle_pinet_read(address, a); \
655 if (address >= PIGFX_RTG_BASE && address < PIGFX_UPPER) { \
656 return rtg_read((address & 0x0FFFFFFF), a); \
658 if (custom_read_amiga(cfg, address, &target, a) != -1) { \
667 if (ovl || (address >= cfg->mapped_low && address < cfg->mapped_high)) { \
668 if (handle_mapped_read(cfg, address, &target, a) != -1) \
672 unsigned int m68k_read_memory_8(unsigned int address) {
673 PLATFORM_CHECK_READ(OP_TYPE_BYTE);
675 /*if (address >= 0xE90000 && address < 0xF00000) {
676 printf("BYTE read from DMAC @%.8X:", address);
677 uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_BYTE);
680 cpu_emulation_running = 0;
684 /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
685 stop_cpu_emulation(1);
689 if (address & 0xFF000000)
692 unsigned char result = (unsigned int)read8((uint32_t)address);
694 if (mouse_hook_enabled) {
695 if (address == CIAAPRA) {
696 if (mouse_buttons & 0x01) {
697 //mouse_buttons -= 1;
698 return (unsigned int)(result ^ 0x40);
701 return (unsigned int)result;
705 if (kb_hook_enabled) {
706 if (address == CIAAICR) {
707 if (get_num_kb_queued() && (!send_keypress || send_keypress == 1)) {
712 if (send_keypress == 2) {
718 if (address == CIAADAT) {
719 //if (send_keypress) {
720 uint8_t c = 0, t = 0;
721 pop_queued_key(&c, &t);
723 result = ((c << 1) | t) ^ 0xFF;
734 unsigned int m68k_read_memory_16(unsigned int address) {
735 PLATFORM_CHECK_READ(OP_TYPE_WORD);
737 /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
738 stop_cpu_emulation(1);
741 /*if (address >= 0xE90000 && address < 0xF00000) {
742 printf("WORD read from DMAC @%.8X:", address);
743 uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_WORD);
746 cpu_emulation_running = 0;
750 if (mouse_hook_enabled) {
751 if (address == JOY0DAT) {
752 // Forward mouse valueses to Amyga.
753 unsigned short result = (mouse_dy << 8) | (mouse_dx);
754 return (unsigned int)result;
756 /*if (address == CIAAPRA) {
757 unsigned short result = (unsigned int)read16((uint32_t)address);
758 if (mouse_buttons & 0x01) {
759 return (unsigned int)(result | 0x40);
762 return (unsigned int)result;
764 if (address == POTGOR) {
765 unsigned short result = (unsigned int)read16((uint32_t)address);
766 // bit 1 rmb, bit 2 mmb
767 if (mouse_buttons & 0x06) {
768 return (unsigned int)((result ^ ((mouse_buttons & 0x02) << 9)) // move rmb to bit 10
769 & (result ^ ((mouse_buttons & 0x04) << 6))); // move mmb to bit 8
771 return (unsigned int)(result & 0xfffd);
775 if (address & 0xFF000000)
778 if (address & 0x01) {
779 return ((read8(address) << 8) | read8(address + 1));
781 return (unsigned int)read16((uint32_t)address);
784 unsigned int m68k_read_memory_32(unsigned int address) {
785 PLATFORM_CHECK_READ(OP_TYPE_LONGWORD);
787 /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
788 stop_cpu_emulation(1);
791 /*if (address >= 0xE90000 && address < 0xF00000) {
792 printf("LONGWORD read from DMAC @%.8X:", address);
793 uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_LONGWORD);
796 cpu_emulation_running = 0;
800 if (address & 0xFF000000)
803 if (address & 0x01) {
804 uint32_t c = read8(address);
805 c |= (be16toh(read16(address+1)) << 8);
806 c |= (read8(address + 3) << 24);
809 uint16_t a = read16(address);
810 uint16_t b = read16(address + 2);
811 return (a << 16) | b;
814 #define PLATFORM_CHECK_WRITE(a) \
815 if (address >= cfg->custom_low && address < cfg->custom_high) { \
816 switch(cfg->platform->id) { \
817 case PLATFORM_AMIGA: { \
818 if (address >= PISCSI_OFFSET && address < PISCSI_UPPER) { \
819 handle_piscsi_write(address, value, a); \
821 if (address >= PINET_OFFSET && address < PINET_UPPER) { \
822 handle_pinet_write(address, value, a); \
824 if (address >= PIGFX_RTG_BASE && address < PIGFX_UPPER) { \
825 rtg_write((address & 0x0FFFFFFF), value, a); \
828 if (custom_write_amiga(cfg, address, value, a) != -1) { \
837 if (address >= cfg->mapped_low && address < cfg->mapped_high) { \
838 if (handle_mapped_write(cfg, address, value, a) != -1) \
842 void m68k_write_memory_8(unsigned int address, unsigned int value) {
843 PLATFORM_CHECK_WRITE(OP_TYPE_BYTE);
845 /*if (address >= 0xE90000 && address < 0xF00000) {
846 printf("BYTE write to DMAC @%.8X: %.2X\n", address, value);
847 cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_BYTE);
849 cpu_emulation_running = 0;
853 if (address == 0xbfe001) {
854 if (ovl != (value & (1 << 0))) {
855 ovl = (value & (1 << 0));
856 printf("OVL:%x\n", ovl);
860 if (address & 0xFF000000)
863 write8((uint32_t)address, value);
867 void m68k_write_memory_16(unsigned int address, unsigned int value) {
868 PLATFORM_CHECK_WRITE(OP_TYPE_WORD);
870 /*if (address >= 0xE90000 && address < 0xF00000) {
871 printf("WORD write to DMAC @%.8X: %.4X\n", address, value);
872 cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_WORD);
874 cpu_emulation_running = 0;
878 if (address == 0xDFF030) {
879 char *serdat = (char *)&value;
880 // SERDAT word. see amiga dev docs appendix a; upper byte is control codes, and bit 0 is always 1.
881 // ignore this upper byte as it's not viewable data, only display lower byte.
882 printf("%c", serdat[0]);
884 if (address == 0xDFF09A) {
885 if (!(value & 0x8000)) {
890 else if (value & 0x04) {
895 if (address & 0xFF000000)
899 printf("Unaligned WORD write!\n");
901 write16((uint32_t)address, value);
905 void m68k_write_memory_32(unsigned int address, unsigned int value) {
906 PLATFORM_CHECK_WRITE(OP_TYPE_LONGWORD);
908 /*if (address >= 0xE90000 && address < 0xF00000) {
909 printf("LONGWORD write to DMAC @%.8X: %.8X\n", address, value);
910 cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_LONGWORD);
912 cpu_emulation_running = 0;
916 if (address & 0xFF000000)
920 printf("Unaligned LONGWORD write!\n");
922 write16(address, value >> 16);
923 write16(address + 2, value);