#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
+#include <sys/ioctl.h>
#include "Gayle.h"
#include "ide.h"
#include "m68k.h"
#include "main.h"
+#include "config_file/config_file.h"
+#include "input/input.h"
//#define BCM2708_PERI_BASE 0x20000000 //pi0-1
//#define BCM2708_PERI_BASE 0xFE000000 //pi4
#define GAYLEBASE 0xD80000 // D7FFFF
#define GAYLESIZE 0x6FFFF
+#define JOY0DAT 0xDFF00A
+#define JOY1DAT 0xDFF00C
+#define CIAAPRA 0xBFE001
+#define POTGOR 0xDFF016
+
+int kb_hook_enabled = 0;
+int mouse_hook_enabled = 0;
+int cpu_emulation_running = 1;
+
+char mouse_dx = 0, mouse_dy = 0;
+char mouse_buttons = 0;
+
#define KICKBASE 0xF80000
#define KICKSIZE 0x7FFFF
-int mem_fd;
+int mem_fd, mouse_fd = -1, keyboard_fd = -1;
int mem_fd_gpclk;
int gayle_emulation_enabled = 1;
void *gpio_map;
void *gpclk_map;
+// Configurable emulator options
+unsigned int cpu_type = M68K_CPU_TYPE_68000;
+unsigned int loop_cycles = 300;
+struct emulator_config *cfg = NULL;
+char keyboard_file[256] = "/dev/input/event1";
+
// I/O access
volatile unsigned int *gpio;
volatile unsigned int *gpclk;
volatile uint32_t srdata2;
volatile uint32_t srdata2_old;
-unsigned char g_kick[524288];
-unsigned char g_ram[FASTSIZE + 1]; /* RAM */
+//unsigned char g_kick[524288];
+//unsigned char g_ram[FASTSIZE + 1]; /* RAM */
unsigned char toggle;
static volatile unsigned char ovl;
static volatile unsigned char maprom;
void sigint_handler(int sig_num) {
- printf("\n Exit Ctrl+C %d\n", sig_num);
+ //if (sig_num) { }
+ //cpu_emulation_running = 0;
+
+ //return;
+ printf("Received sigint %d, exiting.\n", sig_num);
+ if (mouse_fd != -1)
+ close(mouse_fd);
+ if (mem_fd)
+ close(mem_fd);
+
exit(0);
}
while (42) {
- if (GET_GPIO(1) == 0){
- toggle = 1;
+ if (GET_GPIO(1) == 0) {
+ toggle = 1;
m68k_end_timeslice();
- //printf("thread!/n");
+ //printf("thread!/n");
} else {
- toggle = 0;
+ toggle = 0;
};
usleep(1);
}
if (strcmp(argv[g], "--disable-gayle") == 0) {
gayle_emulation_enabled = 0;
}
+ else if (strcmp(argv[g], "--cpu_type") == 0 || strcmp(argv[g], "--cpu") == 0) {
+ if (g + 1 >= argc) {
+ printf("%s switch found, but no CPU type specified.\n", argv[g]);
+ } else {
+ g++;
+ cpu_type = get_m68k_cpu_type(argv[g]);
+ }
+ }
+ else if (strcmp(argv[g], "--config-file") == 0 || strcmp(argv[g], "--config") == 0) {
+ if (g + 1 >= argc) {
+ printf("%s switch found, but no config filename specified.\n", argv[g]);
+ } else {
+ g++;
+ cfg = load_config_file(argv[g]);
+ }
+ }
+ }
+
+ if (!cfg) {
+ printf("No config file specified. Trying to load default.cfg...\n");
+ cfg = load_config_file("default.cfg");
+ if (!cfg) {
+ printf("Couldn't load default.cfg, empty emulator config will be used.\n");
+ cfg = (struct emulator_config *)calloc(1, sizeof(struct emulator_config));
+ if (!cfg) {
+ printf("Failed to allocate memory for emulator config!\n");
+ return 1;
+ }
+ memset(cfg, 0x00, sizeof(struct emulator_config));
+ }
+ }
+
+ if (cfg) {
+ if (cfg->cpu_type) cpu_type = cfg->cpu_type;
+ if (cfg->loop_cycles) loop_cycles = cfg->loop_cycles;
+ }
+
+ if (cfg->mouse_enabled) {
+ mouse_fd = open(cfg->mouse_file, O_RDONLY | O_NONBLOCK);
+ if (mouse_fd == -1) {
+ printf("Failed to open %s, can't enable mouse hook.\n", cfg->mouse_file);
+ cfg->mouse_enabled = 0;
+ }
+ }
+
+ keyboard_fd = open(keyboard_file, O_RDONLY | O_NONBLOCK);
+ if (keyboard_fd == -1) {
+ printf("Failed to open keyboard event source.\n");
}
sched_setscheduler(0, SCHED_FIFO, &priority);
signal(SIGINT, sigint_handler);
setup_io();
+ //goto skip_everything;
+
// Enable 200MHz CLK output on GPIO4, adjust divider and pll source depending
// on pi model
printf("Enable 200MHz GPCLK0 on GPIO4\n");
write_reg(0x00);
usleep(100);
- // load kick.rom if present
- maprom = 1;
- int fd = 0;
- fd = open("kick.rom", O_RDONLY);
- if (fd < 1) {
- printf("Failed loading kick.rom, using motherboard kickstart\n");
- maprom = 0;
- } else {
- int size = (int)lseek(fd, 0, SEEK_END);
- if (size == 0x40000) {
- lseek(fd, 0, SEEK_SET);
- read(fd, &g_kick, size);
- lseek(fd, 0, SEEK_SET);
- read(fd, &g_kick[0x40000], size);
- } else {
- lseek(fd, 0, SEEK_SET);
- read(fd, &g_kick, size);
- }
- printf("Loaded kick.rom with size %d kib\n", size / 1024);
- }
-
// reset amiga and statemachine
+ skip_everything:;
cpu_pulse_reset();
ovl = 1;
m68k_write_memory_8(0xbfe201, 0x0001); // AMIGA OVL
usleep(1500);
m68k_init();
- m68k_set_cpu_type(M68K_CPU_TYPE_68030);
+ printf("Setting CPU type to %d.\n", cpu_type);
+ m68k_set_cpu_type(cpu_type);
m68k_pulse_reset();
if (maprom == 1) {
else
printf("\n IPL Thread created successfully\n");
*/
+ char c = 0;
m68k_pulse_reset();
while (42) {
+ if (mouse_hook_enabled) {
+ if (get_mouse_status(&mouse_dx, &mouse_dy, &mouse_buttons)) {
+ //printf("Maus: %d (%.2X), %d (%.2X), B:%.2X\n", mouse_dx, mouse_dx, mouse_dy, mouse_dy, mouse_buttons);
+ }
+ }
- m68k_execute(30000);
+ if (cpu_emulation_running)
+ m68k_execute(loop_cycles);
+
+ // FIXME: Rework this to use keyboard events instead.
+ while (get_key_char(&c)) {
+ if (c == cfg->keyboard_toggle_key && !kb_hook_enabled) {
+ kb_hook_enabled = 1;
+ printf("Keyboard hook enabled.\n");
+ }
+ else if (c == 0x1B && kb_hook_enabled) {
+ kb_hook_enabled = 0;
+ printf("Keyboard hook disabled.\n");
+ }
+ if (!kb_hook_enabled) {
+ if (c == cfg->mouse_toggle_key) {
+ mouse_hook_enabled ^= 1;
+ printf("Mouse hook %s.\n", mouse_hook_enabled ? "enabled" : "disabled");
+ mouse_dx = mouse_dy = mouse_buttons = 0;
+ }
+ if (c == 'r') {
+ cpu_emulation_running ^= 1;
+ printf("CPU emulation is now %s\n", cpu_emulation_running ? "running" : "stopped");
+ }
+ if (c == 'R') {
+ cpu_pulse_reset();
+ m68k_pulse_reset();
+ printf("CPU emulation reset.\n");
+ }
+ if (c == 'q') {
+ printf("Quitting and exiting emulator.\n");
+ goto stop_cpu_emulation;
+ }
+ }
+ }
/*
if (toggle == 1){
srdata = read_reg();
*/
- if (GET_GPIO(1) == 0){
+ if (GET_GPIO(1) == 0) {
srdata = read_reg();
m68k_set_irq((srdata >> 13) & 0xff);
} else {
-// if (CheckIrq() == 1)
-// m68k_set_irq(2);
-// else
+ if (CheckIrq() == 1) {
+ write16(0xdff09c, 0x8008);
+ m68k_set_irq(2);
+ }
+ else
m68k_set_irq(0);
};
}
+ stop_cpu_emulation:;
+
+ if (mouse_fd != -1)
+ close(mouse_fd);
+ if (mem_fd)
+ close(mem_fd);
+
return 0;
}
return level;
}
-unsigned int m68k_read_memory_8(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- return g_ram[address - FASTBASE];
- }
-
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return g_kick[address - KICKBASE];
- }
- }
+static unsigned int target = 0;
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayleB(address);
- }
+unsigned int m68k_read_memory_8(unsigned int address) {
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_BYTE, ovl);
+ if (ret != -1)
+ return target;
}
address &=0xFFFFFF;
}
unsigned int m68k_read_memory_16(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- return be16toh(*(uint16_t *)&g_ram[address - FASTBASE]);
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_WORD, ovl);
+ if (ret != -1)
+ return target;
}
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return be16toh(*(uint16_t *)&g_kick[address - KICKBASE]);
+ if (mouse_hook_enabled) {
+ if (address == JOY0DAT) {
+ // Forward mouse valueses to Amyga.
+ unsigned short result = (mouse_dy << 8) | (mouse_dx);
+ mouse_dx = mouse_dy = 0;
+ return (unsigned int)result;
}
- }
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayle(address);
+ if (address == CIAAPRA) {
+ unsigned short result = (unsigned int)read16((uint32_t)address);
+ if (mouse_buttons & 0x01) {
+ mouse_buttons -= 1;
+ return (unsigned int)(result | 0x40);
+ }
+ else
+ return (unsigned int)result;
+ }
+ if (address == POTGOR) {
+ unsigned short result = (unsigned int)read16((uint32_t)address);
+ if (mouse_buttons & 0x02) {
+ mouse_buttons -= 2;
+ return (unsigned int)(result | 0x2);
+ }
+ else
+ return (unsigned int)result;
}
}
}
unsigned int m68k_read_memory_32(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- return be32toh(*(uint32_t *)&g_ram[address - FASTBASE]);
- }
-
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return be32toh(*(uint32_t *)&g_kick[address - KICKBASE]);
- }
- }
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayleL(address);
- }
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_LONGWORD, ovl);
+ if (ret != -1)
+ return target;
}
// if (address < 0xffffff) {
}
void m68k_write_memory_8(unsigned int address, unsigned int value) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- g_ram[address - FASTBASE] = value;
- return;
- }
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayleB(address, value);
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_BYTE, ovl);
+ if (ret != -1)
return;
- }
}
-/*
+
if (address == 0xbfe001) {
ovl = (value & (1 << 0));
printf("OVL:%x\n", ovl);
}
-*/
+
// if (address < 0xffffff) {
address &=0xFFFFFF;
write8((uint32_t)address, value);
}
void m68k_write_memory_16(unsigned int address, unsigned int value) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- *(uint16_t *)&g_ram[address - FASTBASE] = htobe16(value);
- return;
- }
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayle(address, value);
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_WORD, ovl);
+ if (ret != -1)
return;
- }
}
// if (address < 0xffffff) {
}
void m68k_write_memory_32(unsigned int address, unsigned int value) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- *(uint32_t *)&g_ram[address - FASTBASE] = htobe32(value);
- return;
- }
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayleL(address, value);
- }
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_LONGWORD, ovl);
+ if (ret != -1)
+ return;
}
// if (address < 0xffffff) {
projects / pistorm / blobdiff