EXENAME = emulator
-MAINFILES = emulator.c Gayle.c ide.c
+MAINFILES = emulator.c Gayle.c ide.c memory_mapped.c config_file/config_file.c registers/registers_amiga.c
MUSASHIFILES = m68kcpu.c softfloat/softfloat.c
MUSASHIGENCFILES = m68kops.c
MUSASHIGENHFILES = m68kops.h
--- /dev/null
+#include "config_file.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define M68K_CPU_TYPES M68K_CPU_TYPE_SCC68070
+
+const char *cpu_types[M68K_CPU_TYPES] = {
+ "68000",
+ "68010",
+ "68EC020",
+ "68020",
+ "68EC030",
+ "68030",
+ "68EC040",
+ "68LC040",
+ "68040",
+ "SCC68070",
+};
+
+const char *map_type_names[MAPTYPE_NUM] = {
+ "NONE",
+ "rom",
+ "ram",
+ "register",
+};
+
+const char *config_item_names[CONFITEM_NUM] = {
+ "NONE",
+ "cpu",
+ "map",
+ "loopcycles",
+ "mouse",
+ "keyboard",
+};
+
+const char *mapcmd_names[MAPCMD_NUM] = {
+ "NONE",
+ "type",
+ "address",
+ "size",
+ "range",
+ "file",
+ "ovl",
+ "id",
+};
+
+int get_config_item_type(char *cmd) {
+ for (int i = 0; i < CONFITEM_NUM; i++) {
+ if (strcmp(cmd, config_item_names[i]) == 0) {
+ return i;
+ }
+ }
+
+ return CONFITEM_NONE;
+}
+
+unsigned int get_m68k_cpu_type(char *name) {
+ for (int i = 0; i < M68K_CPU_TYPES; i++) {
+ if (strcmp(name, cpu_types[i]) == 0) {
+ printf("Set CPU type to %s.\n", cpu_types[i]);
+ return i + 1;
+ }
+ }
+
+ printf ("Invalid CPU type %s specified, defaulting to 68000.\n", name);
+ return M68K_CPU_TYPE_68000;
+}
+
+unsigned int get_map_cmd(char *name) {
+ for (int i = 1; i < MAPCMD_NUM; i++) {
+ if (strcmp(name, mapcmd_names[i]) == 0) {
+ return i;
+ }
+ }
+
+ return MAPCMD_UNKNOWN;
+}
+
+unsigned int get_map_type(char *name) {
+ for (int i = 1; i < MAPTYPE_NUM; i++) {
+ if (strcmp(name, map_type_names[i]) == 0) {
+ return i;
+ }
+ }
+
+ return MAPTYPE_NONE;
+}
+
+void trim_whitespace(char *str) {
+ while (strlen(str) != 0 && (str[strlen(str) - 1] == ' ' || str[strlen(str) - 1] == '\t' || str[strlen(str) - 1] == 0x0A || str[strlen(str) - 1] == 0x0D)) {
+ str[strlen(str) - 1] = '\0';
+ }
+}
+
+unsigned int get_int(char *str) {
+ if (strlen(str) == 0)
+ return -1;
+
+ int ret_int = 0;
+
+ if (strlen(str) > 2 && str[0] == '0' && str[1] == 'x') {
+ for (int i = 2; i < (int)strlen(str); i++) {
+ if (str[i] >= '0' && str[i] <= '9') {
+ ret_int = (str[i] - '0') | (ret_int << 4);
+ }
+ else {
+ switch(str[i]) {
+ case 'A': ret_int = 0xA | (ret_int << 4); break;
+ case 'B': ret_int = 0xB | (ret_int << 4); break;
+ case 'C': ret_int = 0xC | (ret_int << 4); break;
+ case 'D': ret_int = 0xD | (ret_int << 4); break;
+ case 'E': ret_int = 0xE | (ret_int << 4); break;
+ case 'F': ret_int = 0xF | (ret_int << 4); break;
+ case 'K': ret_int = ret_int * SIZE_KILO; break;
+ case 'M': ret_int = ret_int * SIZE_MEGA; break;
+ case 'G': ret_int = ret_int * SIZE_GIGA; break;
+ default:
+ printf("Unknown character %c in hex value.\n", str[i]);
+ break;
+ }
+ }
+ }
+ return ret_int;
+ }
+ else {
+ ret_int = atoi(str);
+ if (str[strlen(str) - 1] == 'K')
+ ret_int = ret_int * SIZE_KILO;
+ else if (str[strlen(str) - 1] == 'M')
+ ret_int = ret_int * SIZE_MEGA;
+ else if (str[strlen(str) - 1] == 'G')
+ ret_int = ret_int * SIZE_GIGA;
+
+ return ret_int;
+ }
+}
+
+void get_next_string(char *str, char *str_out, int *strpos, char separator) {
+ int str_pos = 0, out_pos = 0;
+
+ if (!str_out)
+ return;
+
+ if (strpos)
+ str_pos = *strpos;
+
+ while (str[str_pos] == ' ' && str[str_pos] == '\t' && str_pos < (int)strlen(str)) {
+ str_pos++;
+ }
+
+ for (int i = str_pos; i < (int)strlen(str); i++) {
+ str_out[out_pos] = str[i];
+ if ((separator == ' ' && (str[i] == ' ' || str[i] == '\t')) || str[i] == separator) {
+ str_out[out_pos] = '\0';
+ if (strpos) {
+ *strpos = i + 1;
+ }
+ break;
+ }
+ out_pos++;
+ if (i + 1 == (int)strlen(str) && strpos) {
+ *strpos = i + 1;
+ str_out[out_pos] = '\0';
+ }
+ }
+}
+
+void add_mapping(struct emulator_config *cfg, unsigned int type, unsigned int addr, unsigned int size, int mirr_addr, char *filename, char *map_id) {
+ unsigned int index = 0, file_size = 0;
+ FILE *in = NULL;
+
+ while (index < MAX_NUM_MAPPED_ITEMS) {
+ if (cfg->map_type[index] == MAPTYPE_NONE)
+ break;
+ index++;
+ }
+ if (index == MAX_NUM_MAPPED_ITEMS) {
+ printf("Unable to map item, only %d items can be mapped with current binary.\n", MAX_NUM_MAPPED_ITEMS);
+ return;
+ }
+
+ cfg->map_type[index] = type;
+ cfg->map_offset[index] = addr;
+ cfg->map_size[index] = size;
+ cfg->map_mirror[index] = mirr_addr;
+ if (strlen(map_id)) {
+ cfg->map_id[index] = (char *)malloc(strlen(map_id) + 1);
+ strcpy(cfg->map_id[index], map_id);
+ }
+
+ switch(type) {
+ case MAPTYPE_RAM:
+ printf("Allocating %d bytes for RAM mapping (%d MB)...\n", size, size / 1024 / 1024);
+ cfg->map_data[index] = (unsigned char *)malloc(size);
+ if (!cfg->map_data[index]) {
+ printf("ERROR: Unable to allocate memory for mapped RAM!\n");
+ goto mapping_failed;
+ }
+ memset(cfg->map_data[index], 0x00, size);
+ break;
+ case MAPTYPE_ROM:
+ in = fopen(filename, "rb");
+ if (!in) {
+ printf("Failed to open file %s for ROM mapping.\n", filename);
+ goto mapping_failed;
+ }
+ fseek(in, 0, SEEK_END);
+ file_size = (int)ftell(in);
+ if (size == 0) {
+ cfg->map_size[index] = file_size;
+ }
+ fseek(in, 0, SEEK_SET);
+ cfg->map_data[index] = (unsigned char *)calloc(1, cfg->map_size[index]);
+ if (!cfg->map_data[index]) {
+ printf("ERROR: Unable to allocate memory for mapped ROM!\n");
+ goto mapping_failed;
+ }
+ memset(cfg->map_data[index], 0x00, cfg->map_size[index]);
+ fread(cfg->map_data[index], (cfg->map_size[index] <= file_size) ? cfg->map_size[index] : file_size, 1, in);
+ fclose(in);
+ break;
+ case MAPTYPE_REGISTER:
+ default:
+ break;
+ break;
+ }
+
+ printf("[MAP %d] Added %s mapping for range %.8lX-%.8lX (%.8lX)\n", index, map_type_names[type], cfg->map_offset[index], cfg->map_offset[index] + cfg->map_size[index] - 1, (uint64_t)cfg->map_data[index]);
+
+ return;
+
+ mapping_failed:;
+ cfg->map_type[index] = MAPTYPE_NONE;
+ if (in)
+ fclose(in);
+}
+
+struct emulator_config *load_config_file(char *filename) {
+ FILE *in = fopen(filename, "rb");
+ if (in == NULL) {
+ printf("Failed to open config file %s for reading.\n", filename);
+ return NULL;
+ }
+
+ char *parse_line = NULL;
+ char cur_cmd[128];
+ struct emulator_config *cfg = NULL;
+ int cur_line = 1;
+
+ parse_line = (char *)calloc(1, 512);
+ if (!parse_line) {
+ printf("Failed to allocate memory for config file line buffer.\n");
+ return NULL;
+ }
+ cfg = (struct emulator_config *)calloc(1, sizeof(struct emulator_config));
+ if (!cfg) {
+ printf("Failed to allocate memory for temporary emulator config.\n");
+ goto load_failed;
+ }
+
+ memset(cfg, 0x00, sizeof(struct emulator_config));
+ cfg->cpu_type = M68K_CPU_TYPE_68000;
+
+ while (!feof(in)) {
+ int str_pos = 0;
+ memset(parse_line, 0x00, 512);
+ fgets(parse_line, 512, in);
+
+ if (strlen(parse_line) <= 2 || parse_line[0] == '#' || parse_line[0] == '/')
+ goto skip_line;
+
+ trim_whitespace(parse_line);
+
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+
+ switch (get_config_item_type(cur_cmd)) {
+ case CONFITEM_CPUTYPE:
+ cfg->cpu_type = get_m68k_cpu_type(parse_line + str_pos);
+ break;
+ case CONFITEM_MAP: {
+ unsigned int maptype = 0, mapsize = 0, mapaddr = 0;
+ int mirraddr = -1;
+ char mapfile[128], mapid[128];
+ memset(mapfile, 0x00, 128);
+ memset(mapid, 0x00, 128);
+
+ while (str_pos < (int)strlen(parse_line)) {
+ get_next_string(parse_line, cur_cmd, &str_pos, '=');
+ switch(get_map_cmd(cur_cmd)) {
+ case MAPCMD_TYPE:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ maptype = get_map_type(cur_cmd);
+ //printf("Type! %s\n", map_type_names[maptype]);
+ break;
+ case MAPCMD_ADDRESS:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ mapaddr = get_int(cur_cmd);
+ //printf("Address! %.8X\n", mapaddr);
+ break;
+ case MAPCMD_SIZE:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ mapsize = get_int(cur_cmd);
+ //printf("Size! %.8X\n", mapsize);
+ break;
+ case MAPCMD_RANGE:
+ get_next_string(parse_line, cur_cmd, &str_pos, '-');
+ mapaddr = get_int(cur_cmd);
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ mapsize = get_int(cur_cmd) - 1 - mapaddr;
+ //printf("Range! %d-%d\n", mapaddr, mapaddr + mapsize);
+ break;
+ case MAPCMD_FILENAME:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ strcpy(mapfile, cur_cmd);
+ //printf("File! %s\n", mapfile);
+ break;
+ case MAPCMD_MAP_ID:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ strcpy(mapid, cur_cmd);
+ //printf("File! %s\n", mapfile);
+ break;
+ case MAPCMD_OVL_REMAP:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ mirraddr = get_int(cur_cmd);
+ break;
+ default:
+ printf("Unknown/unhandled map argument %s on line %d.\n", cur_cmd, cur_line);
+ break;
+ }
+ }
+ add_mapping(cfg, maptype, mapaddr, mapsize, mirraddr, mapfile, mapid);
+
+ break;
+ }
+ case CONFITEM_LOOPCYCLES:
+ cfg->loop_cycles = get_int(parse_line + str_pos);
+ printf("Set CPU loop cycles to %d.\n", cfg->loop_cycles);
+ break;
+ case CONFITEM_MOUSE:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ cfg->mouse_file = (char *)calloc(1, strlen(cur_cmd) + 1);
+ strcpy(cfg->mouse_file, cur_cmd);
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ cfg->mouse_toggle_key = cur_cmd[0];
+ cfg->mouse_enabled = 1;
+ printf("Enabled mouse event forwarding from file %s, toggle key %c.\n", cfg->mouse_file, cfg->mouse_toggle_key);
+ break;
+ case CONFITEM_KEYBOARD:
+ get_next_string(parse_line, cur_cmd, &str_pos, ' ');
+ cfg->keyboard_toggle_key = cur_cmd[0];
+ printf("Enabled keyboard event forwarding, toggle key %c.\n", cfg->keyboard_toggle_key);
+ break;
+ case CONFITEM_NONE:
+ default:
+ printf("Unknown config item %s on line %d.\n", cur_cmd, cur_line);
+ break;
+ }
+
+ skip_line:;
+ cur_line++;
+ }
+ goto load_successful;
+
+ load_failed:;
+ if (cfg) {
+ for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
+ if (cfg->map_data[i])
+ free(cfg->map_data[i]);
+ cfg->map_data[i] = NULL;
+ }
+ free(cfg);
+ cfg = NULL;
+ }
+ load_successful:;
+ if (parse_line)
+ free(parse_line);
+
+ return cfg;
+}
--- /dev/null
+#include "../m68k.h"
+
+#define MAX_NUM_MAPPED_ITEMS 8
+#define SIZE_KILO 1024
+#define SIZE_MEGA (1024 * 1024)
+#define SIZE_GIGA (1024 * 1024 * 1024)
+
+typedef enum {
+ MAPTYPE_NONE,
+ MAPTYPE_ROM,
+ MAPTYPE_RAM,
+ MAPTYPE_REGISTER,
+ MAPTYPE_NUM,
+} map_types;
+
+typedef enum {
+ MAPCMD_UNKNOWN,
+ MAPCMD_TYPE,
+ MAPCMD_ADDRESS,
+ MAPCMD_SIZE,
+ MAPCMD_RANGE,
+ MAPCMD_FILENAME,
+ MAPCMD_OVL_REMAP,
+ MAPCMD_MAP_ID,
+ MAPCMD_NUM,
+} map_cmds;
+
+typedef enum {
+ CONFITEM_NONE,
+ CONFITEM_CPUTYPE,
+ CONFITEM_MAP,
+ CONFITEM_LOOPCYCLES,
+ CONFITEM_MOUSE,
+ CONFITEM_KEYBOARD,
+ CONFITEM_NUM,
+} config_items;
+
+typedef enum {
+ OP_TYPE_BYTE,
+ OP_TYPE_WORD,
+ OP_TYPE_LONGWORD,
+ OP_TYPE_MEM,
+ OP_TYPE_NUM,
+} map_op_types;
+
+struct emulator_config {
+ unsigned int cpu_type;
+
+ unsigned char map_type[MAX_NUM_MAPPED_ITEMS];
+ long map_offset[MAX_NUM_MAPPED_ITEMS];
+ unsigned int map_size[MAX_NUM_MAPPED_ITEMS];
+ unsigned char *map_data[MAX_NUM_MAPPED_ITEMS];
+ int map_mirror[MAX_NUM_MAPPED_ITEMS];
+ char *map_id[MAX_NUM_MAPPED_ITEMS];
+
+ char *mouse_file;
+
+ char mouse_toggle_key, keyboard_toggle_key;
+ unsigned char mouse_enabled, keyboard_enabled;
+
+ unsigned int loop_cycles;
+};
+
+unsigned int get_m68k_cpu_type(char *name);
+struct emulator_config *load_config_file(char *filename);
+
+int handle_mapped_read(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type, unsigned char mirror);
+int handle_mapped_write(struct emulator_config *cfg, unsigned int addr, unsigned int value, unsigned char type, unsigned char mirror);
+int handle_register_read(unsigned int addr, unsigned char type, unsigned int *val);
+int handle_register_write(unsigned int addr, unsigned int value, unsigned char type);
+
+int get_mouse_status(char *x, char *y, char *b);
--- /dev/null
+# Sets CPU type. Valid types are (probably) 68000, 68010, 68020, 68EC020, 68030, 68EC030, 68040, 68EC040, 68LC040 and some STTTT thing.
+cpu 68EC030
+# Map 512KB kickstart ROM to default offset.
+map type=rom address=0xF80000 size=0x80000 file=kick512.rom ovl=0
+# This is for mapping a 256KB kickstart ROM. I can probably add some additional thing about kicking this file into low/high area.
+#map type=rom address=0xFC0000 size=0x40000 file=kick256.rom ovl=0
+# Want to map an extended ROM, such as CDTV or CD32?
+#map type=rom address=0xF00000 size=0x90000 file=cdtv.rom
+# Map 256MB of Fast RAM at 0x8000000.
+map type=ram address=0x08000000 size=128M
+# Map Gayle as a register range.
+map type=register address=0xD80000 size=0x70000
+# Number of instructions to run every main loop.
+loopcycles 300
+# Forward mouse events to host system, defaults to off unless toggle key is pressed on the Pi.
+# Syntax is mouse [device] [toggle key]
+#mouse /dev/input/mouse0 m
+# Forward keyboard events to host system, defaults to off unless toggle key is pressed, toggled off using F12.
+#keyboard k
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+#include <linux/input.h>
#include "Gayle.h"
#include "ide.h"
#include "m68k.h"
#include "main.h"
+#include "config_file/config_file.h"
+
+int kbhit()
+{
+ struct termios term;
+ tcgetattr(0, &term);
+
+ struct termios term2 = term;
+ term2.c_lflag &= ~ICANON;
+ tcsetattr(0, TCSANOW, &term2);
+
+ int byteswaiting;
+ ioctl(0, FIONREAD, &byteswaiting);
+
+ tcsetattr(0, TCSANOW, &term);
+
+ return byteswaiting > 0;
+}
//#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;
+
+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;
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;
+
// 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 (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));
+ }
+ }
+ else {
+ 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;
+ }
}
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");
usleep(100);
// load kick.rom if present
- maprom = 1;
+ /*maprom = 1;
int fd = 0;
fd = open("kick.rom", O_RDONLY);
if (fd < 1) {
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_68020);
+ m68k_set_cpu_type(cpu_type);
m68k_pulse_reset();
if (maprom == 1) {
printf("\n IPL Thread created successfully\n");
*/
+ int cpu_emulation_running = 1;
+
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(300);
+ if (cpu_emulation_running)
+ m68k_execute(loop_cycles);
+
+ while (kbhit()) {
+ char c = getchar();
+ 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 (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 (toggle == 1){
srdata = read_reg();
return level;
}
+static unsigned int target = 0;
+
unsigned int m68k_read_memory_8(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_BYTE, ovl);
+ if (ret != -1)
+ return target;
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
return g_ram[address - FASTBASE];
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleB(address);
}
- }
+ }*/
address &=0xFFFFFF;
// if (address < 0xffffff) {
}
unsigned int m68k_read_memory_16(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_WORD, ovl);
+ if (ret != -1)
+ return target;
+ }
+
+ 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 (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;
+ }
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
return be16toh(*(uint16_t *)&g_ram[address - FASTBASE]);
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayle(address);
}
- }
+ }*/
// if (address < 0xffffff) {
address &=0xFFFFFF;
}
unsigned int m68k_read_memory_32(unsigned int address) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
+ if (cfg) {
+ int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_LONGWORD, ovl);
+ if (ret != -1)
+ return target;
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
return be32toh(*(uint32_t *)&g_ram[address - FASTBASE]);
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
return readGayleL(address);
}
- }
+ }*/
// if (address < 0xffffff) {
address &=0xFFFFFF;
}
void m68k_write_memory_8(unsigned int address, unsigned int value) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_BYTE, ovl);
+ if (ret != -1)
+ return;
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
g_ram[address - FASTBASE] = value;
return;
}
writeGayleB(address, value);
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) {
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_WORD, ovl);
+ if (ret != -1)
+ return;
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
*(uint16_t *)&g_ram[address - FASTBASE] = htobe16(value);
return;
}
writeGayle(address, value);
return;
}
- }
+ }*/
// if (address < 0xffffff) {
address &=0xFFFFFF;
}
void m68k_write_memory_32(unsigned int address, unsigned int value) {
- if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
+ if (cfg) {
+ int ret = handle_mapped_write(cfg, address, value, OP_TYPE_LONGWORD, ovl);
+ if (ret != -1)
+ return;
+ }
+ /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
*(uint32_t *)&g_ram[address - FASTBASE] = htobe32(value);
return;
}
if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
writeGayleL(address, value);
}
- }
+ }*/
// if (address < 0xffffff) {
address &=0xFFFFFF;
gpclk = ((volatile unsigned *)gpio_map) + GPCLK_ADDR / 4;
} // setup_io
+
+int get_mouse_status(char *x, char *y, char *b) {
+ struct input_event ie;
+ if (read(mouse_fd, &ie, sizeof(struct input_event)) != -1) {
+ *b = ((char *)&ie)[0];
+ *x = ((char *)&ie)[1];
+ *y = ((char *)&ie)[2];
+ return 1;
+ }
+
+ return 0;
+}
--- /dev/null
+#include "config_file/config_file.h"
+#include "Gayle.h"
+#include <endian.h>
+
+#define CHKRANGE(a, b, c) a >= (unsigned int)b && a < (unsigned int)(b + c)
+
+static unsigned int target;
+
+extern const char *map_type_names[MAPTYPE_NUM];
+const char *op_type_names[OP_TYPE_NUM] = {
+ "BYTE",
+ "WORD",
+ "LONGWORD",
+ "MEM",
+};
+
+int handle_mapped_read(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type, unsigned char mirror) {
+ unsigned char *read_addr = NULL;
+ char handle_regs = 0;
+
+ //printf("Mapped read: %.8x\n", addr);
+
+ for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
+ if (cfg->map_type[i] == MAPTYPE_NONE)
+ continue;
+ switch(cfg->map_type[i]) {
+ case MAPTYPE_ROM:
+ if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ read_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
+ else if (cfg->map_mirror[i] != -1 && mirror && CHKRANGE(addr, cfg->map_mirror[i], cfg->map_size[i]))
+ read_addr = cfg->map_data[i] + (addr - cfg->map_mirror[i]);
+ break;
+ case MAPTYPE_RAM:
+ if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ read_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
+ break;
+ case MAPTYPE_REGISTER:
+ if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ handle_regs = 1;
+ break;
+ }
+
+ if (!read_addr && !handle_regs)
+ continue;
+
+ if (handle_regs) {
+ if (handle_register_read(addr, type, &target) != -1) {
+ *val = target;
+ return 1;
+ }
+ return -1;
+ }
+ else if (read_addr) {
+ //printf("Read %s from %s (%.8X) (%d)\n", op_type_names[type], map_type_names[cfg->map_type[i]], addr, mirror);
+ //printf("Readaddr: %.8lX (Base %.8lX\n", (uint64_t)(read_addr), (uint64_t)cfg->map_data[i]);
+ switch(type) {
+ case OP_TYPE_BYTE:
+ *val = read_addr[0];
+ //printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ *val = be16toh(((unsigned short *)read_addr)[0]);
+ //printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ *val = be32toh(((unsigned int *)read_addr)[0]);
+ //printf("Read val: %.8lX (%d)\n", (uint64_t)val, *val);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
+ }
+ }
+
+ return -1;
+}
+
+int handle_mapped_write(struct emulator_config *cfg, unsigned int addr, unsigned int value, unsigned char type, unsigned char mirror) {
+ unsigned char *write_addr = NULL;
+ char handle_regs = 0;
+
+ //printf("Mapped write: %.8x\n", addr);
+
+ for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
+ if (cfg->map_type[i] == MAPTYPE_NONE)
+ continue;
+ switch(cfg->map_type[i]) {
+ case MAPTYPE_ROM:
+ if (cfg->map_mirror[i] != -1 && mirror && CHKRANGE(addr, cfg->map_mirror[i], cfg->map_size[i]))
+ return -1;
+ else if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ return 1;
+ break;
+ case MAPTYPE_RAM:
+ if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ write_addr = cfg->map_data[i] + (addr - cfg->map_offset[i]);
+ break;
+ case MAPTYPE_REGISTER:
+ if (CHKRANGE(addr, cfg->map_offset[i], cfg->map_size[i]))
+ handle_regs = 1;
+ break;
+ }
+
+ if (!write_addr && !handle_regs)
+ continue;
+
+ if (handle_regs) {
+ return handle_register_write(addr, value, type);
+ }
+ else if (write_addr) {
+ //printf("Write %s to %s (%.8X) (%d)\n", op_type_names[type], map_type_names[cfg->map_type[i]], addr, mirror);
+ //printf("Writeaddr: %.8lX (Base %.8lX\n", (uint64_t)(write_addr), (uint64_t)cfg->map_data[i]);
+ switch(type) {
+ case OP_TYPE_BYTE:
+ write_addr[0] = (unsigned char)value;
+ //printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ ((short *)write_addr)[0] = htobe16(value);
+ //printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ ((int *)write_addr)[0] = htobe32(value);
+ //printf("Write val: %.8X (%d)\n", (uint32_t)value, value);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
+ }
+ }
+
+ return -1;
+}
--- /dev/null
+#include "../Gayle.h"
+#include "../config_file/config_file.h"
+
+#define GAYLEBASE 0xD80000 // D7FFFF
+#define GAYLESIZE 0x6FFFF
+
+int handle_register_read(unsigned int addr, unsigned char type, unsigned int *val) {
+ if (addr > GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
+ switch(type) {
+ case OP_TYPE_BYTE:
+ *val = readGayleB(addr);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ *val = readGayle(addr);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ *val = readGayleL(addr);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
+ }
+ return -1;
+}
+
+int handle_register_write(unsigned int addr, unsigned int value, unsigned char type) {
+ if (addr > GAYLEBASE && addr < GAYLEBASE + GAYLESIZE) {
+ switch(type) {
+ case OP_TYPE_BYTE:
+ writeGayleB(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_WORD:
+ writeGayle(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_LONGWORD:
+ writeGayleL(addr, value);
+ return 1;
+ break;
+ case OP_TYPE_MEM:
+ return -1;
+ break;
+ }
+ }
+ return -1;
+}
--- /dev/null
+int handle_register_read(unsigned int addr, unsigned char type) {
+ return -1;
+}
+
+int handle_register_write(unsigned int addr, unsigned char type) {
+ return -1;
+}
--- /dev/null
+cpu 68000
+#map type=rom address=0xF80000 size=0x80000 file=kick512.rom ovl=0
+#map type=rom address=0xF00000 size=0x90000 file=cdtv.rom
+# Map 256MB of Fast RAM at 0x8000000.
+#map type=ram address=0x08000000 size=256M
+# Map Gayle as a register range.
+#map type=register address=0xD80000 size=0x70000
+# Number of instructions to run every main loop.
+loopcycles 300
+mouse /dev/input/mouse0 m
+keyboard k
--- /dev/null
+# Sets CPU type. Valid types are (probably) 68000, 68010, 68020, 68EC020, 68030, 68EC030, 68040, 68EC040, 68LC040 and some STTTT thing.
+cpu 68000
+
+# Various ROM locations
+#map type=rom address=0xF00000 file=cgrom
+#map type=rom address=0xFC0000 file=scsiin
+#map type=rom address=0xFE0000 file=ipl
+
+# 10MB of expanded RAM, for machines with 2MB internal.
+map type=ram address=2M size=10M
+# 11MB of expanded RAM, for machines with 1MB internal.
+#map type=ram address=1M size=11M
+
+# Map Gayle as a register range.
+#map type=register address=0xD80000 size=0x70000
+# Number of instructions to run every main loop.
+loopcycles 60
projects / pistorm / commitdiff