#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 BCM2708_PERI_BASE 0x3F000000 // pi3
-#define BCM2708_PERI_SIZE 0x01000000
-#define GPIO_BASE (BCM2708_PERI_BASE + 0x200000) /* GPIO controller */
-#define GPCLK_BASE (BCM2708_PERI_BASE + 0x101000)
-#define GPIO_ADDR 0x200000 /* GPIO controller */
-#define GPCLK_ADDR 0x101000
-#define CLK_PASSWD 0x5a000000
-#define CLK_GP0_CTL 0x070
-#define CLK_GP0_DIV 0x074
-
-#define SA0 5
-#define SA1 3
-#define SA2 2
-
-#define STATUSREGADDR \
- GPIO_CLR = 1 << SA0; \
- GPIO_CLR = 1 << SA1; \
- GPIO_SET = 1 << SA2;
-#define W16 \
- GPIO_CLR = 1 << SA0; \
- GPIO_CLR = 1 << SA1; \
- GPIO_CLR = 1 << SA2;
-#define R16 \
- GPIO_SET = 1 << SA0; \
- GPIO_CLR = 1 << SA1; \
- GPIO_CLR = 1 << SA2;
-#define W8 \
- GPIO_CLR = 1 << SA0; \
- GPIO_SET = 1 << SA1; \
- GPIO_CLR = 1 << SA2;
-#define R8 \
- GPIO_SET = 1 << SA0; \
- GPIO_SET = 1 << SA1; \
- GPIO_CLR = 1 << SA2;
-
-#define PAGE_SIZE (4 * 1024)
-#define BLOCK_SIZE (4 * 1024)
-
-#define GPIOSET(no, ishigh) \
- do { \
- if (ishigh) \
- set |= (1 << (no)); \
- else \
- reset |= (1 << (no)); \
- } while (0)
-
-#define FASTBASE 0x07FFFFFF
-#define FASTSIZE 0xFFFFFFF
-#define GAYLEBASE 0xD80000 // D7FFFF
-#define GAYLESIZE 0x6FFFF
-
-#define JOY0DAT 0xDFF00A
-#define JOY1DAT 0xDFF00C
-#define CIAAPRA 0xBFE001
-#define POTGOR 0xDFF016
+#include "platforms/platforms.h"
+#include "input/input.h"
+
+#include "platforms/amiga/Gayle.h"
+#include "platforms/amiga/gayle-ide/ide.h"
+#include "platforms/amiga/amiga-registers.h"
+#include "platforms/amiga/rtg/rtg.h"
+#include "platforms/amiga/piscsi/piscsi.h"
+#include "platforms/amiga/piscsi/piscsi-enums.h"
+#include "platforms/amiga/net/pi-net.h"
+#include "platforms/amiga/net/pi-net-enums.h"
+#include "gpio/gpio.h"
+
+unsigned char read_ranges;
+unsigned int read_addr[8];
+unsigned int read_upper[8];
+unsigned char *read_data[8];
+unsigned char write_ranges;
+unsigned int write_addr[8];
+unsigned int write_upper[8];
+unsigned char *write_data[8];
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;
+extern volatile unsigned int *gpio;
+extern volatile uint16_t srdata;
+extern uint8_t realtime_graphics_debug;
+uint8_t realtime_disassembly;
+uint32_t do_disasm = 0;
+
+char disasm_buf[4096];
+
#define KICKBASE 0xF80000
#define KICKSIZE 0x7FFFF
-int mem_fd, mouse_fd = -1;
+int mem_fd, mouse_fd = -1, keyboard_fd = -1;
int mem_fd_gpclk;
int gayle_emulation_enabled = 1;
-void *gpio_map;
-void *gpclk_map;
+int irq;
+int gayleirq;
// 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 unsigned int gpfsel0;
-volatile unsigned int gpfsel1;
-volatile unsigned int gpfsel2;
-volatile unsigned int gpfsel0_o;
-volatile unsigned int gpfsel1_o;
-volatile unsigned int gpfsel2_o;
-
-// GPIO setup macros. Always use INP_GPIO(x) before using OUT_GPIO(x) or
-// SET_GPIO_ALT(x,y)
-#define INP_GPIO(g) *(gpio + ((g) / 10)) &= ~(7 << (((g) % 10) * 3))
-#define OUT_GPIO(g) *(gpio + ((g) / 10)) |= (1 << (((g) % 10) * 3))
-#define SET_GPIO_ALT(g, a) \
- *(gpio + (((g) / 10))) |= \
- (((a) <= 3 ? (a) + 4 : (a) == 4 ? 3 : 2) << (((g) % 10) * 3))
-
-#define GPIO_SET \
- *(gpio + 7) // sets bits which are 1 ignores bits which are 0
-#define GPIO_CLR \
- *(gpio + 10) // clears bits which are 1 ignores bits which are 0
-
-#define GET_GPIO(g) (*(gpio + 13) & (1 << g)) // 0 if LOW, (1<<g) if HIGH
-
-#define GPIO_PULL *(gpio + 37) // Pull up/pull down
-#define GPIO_PULLCLK0 *(gpio + 38) // Pull up/pull down clock
-
-void setup_io();
-
-uint32_t read8(uint32_t address);
-void write8(uint32_t address, uint32_t data);
-
-uint32_t read16(uint32_t address);
-void write16(uint32_t address, uint32_t data);
+void *iplThread(void *args) {
+ printf("IPL thread running\n");
-void write32(uint32_t address, uint32_t data);
-uint32_t read32(uint32_t address);
+ while (1) {
+ if (!gpio_get_irq()) {
+ irq = 1;
+ m68k_end_timeslice();
+ }
+ else
+ irq = 0;
+
+ if (gayle_emulation_enabled) {
+ if (((gayle_int & 0x80) || gayle_a4k_int) && (get_ide(0)->drive[0].intrq || get_ide(0)->drive[1].intrq)) {
+ //get_ide(0)->drive[0].intrq = 0;
+ gayleirq = 1;
+ m68k_end_timeslice();
+ }
+ else
+ gayleirq = 0;
+ }
+ usleep(0);
+ }
+ return args;
+}
-uint16_t read_reg(void);
-void write_reg(unsigned int value);
+void stop_cpu_emulation(uint8_t disasm_cur) {
+ m68k_end_timeslice();
+ if (disasm_cur) {
+ m68k_disassemble(disasm_buf, m68k_get_reg(NULL, M68K_REG_PC), cpu_type);
+ 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), \
+ 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));
+ 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), \
+ 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));
+ printf("%.8X (%.8X)]] %s\n", m68k_get_reg(NULL, M68K_REG_PC), (m68k_get_reg(NULL, M68K_REG_PC) & 0xFFFFFF), disasm_buf);
+ realtime_disassembly = 1;
+ }
-volatile uint16_t srdata;
-volatile uint32_t srdata2;
-volatile uint32_t srdata2_old;
+ cpu_emulation_running = 0;
+ do_disasm = 0;
+}
//unsigned char g_kick[524288];
//unsigned char g_ram[FASTSIZE + 1]; /* RAM */
-unsigned char toggle;
-static volatile unsigned char ovl;
+int 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);
-}
-
-void *iplThread(void *args) {
- printf("IPL thread running/n");
-
- while (42) {
- if (GET_GPIO(1) == 0) {
- toggle = 1;
- m68k_end_timeslice();
- //printf("thread!/n");
- } else {
- toggle = 0;
- };
- usleep(1);
+ if (cfg->platform->shutdown) {
+ cfg->platform->shutdown(cfg);
}
+ exit(0);
}
int main(int argc, char *argv[]) {
cfg = load_config_file(argv[g]);
}
}
+ else if (strcmp(argv[g], "--keyboard-file") == 0 || strcmp(argv[g], "--kbfile") == 0) {
+ if (g + 1 >= argc) {
+ printf("%s switch found, but no keyboard device path specified.\n", argv[g]);
+ } else {
+ g++;
+ strcpy(keyboard_file, argv[g]);
+ }
+ }
}
if (!cfg) {
memset(cfg, 0x00, sizeof(struct emulator_config));
}
}
- else {
+
+ if (cfg) {
if (cfg->cpu_type) cpu_type = cfg->cpu_type;
if (cfg->loop_cycles) loop_cycles = cfg->loop_cycles;
+
+ if (!cfg->platform)
+ cfg->platform = make_platform_config("none", "generic");
+ cfg->platform->platform_initial_setup(cfg);
}
if (cfg->mouse_enabled) {
}
}
- sched_setscheduler(0, SCHED_FIFO, &priority);
- mlockall(MCL_CURRENT); // lock in memory to keep us from paging out
+ keyboard_fd = open(keyboard_file, O_RDONLY | O_NONBLOCK);
+ if (keyboard_fd == -1) {
+ printf("Failed to open keyboard event source.\n");
+ }
InitGayle();
// Enable 200MHz CLK output on GPIO4, adjust divider and pll source depending
// on pi model
printf("Enable 200MHz GPCLK0 on GPIO4\n");
-
- *(gpclk + (CLK_GP0_CTL / 4)) = CLK_PASSWD | (1 << 5);
- usleep(10);
- while ((*(gpclk + (CLK_GP0_CTL / 4))) & (1 << 7))
- ;
- usleep(100);
- *(gpclk + (CLK_GP0_DIV / 4)) =
- CLK_PASSWD | (6 << 12); // divider , 6=200MHz on pi3
- usleep(10);
- *(gpclk + (CLK_GP0_CTL / 4)) =
- CLK_PASSWD | 5 | (1 << 4); // pll? 6=plld, 5=pllc
- usleep(10);
- while (((*(gpclk + (CLK_GP0_CTL / 4))) & (1 << 7)) == 0)
- ;
- usleep(100);
-
- SET_GPIO_ALT(4, 0); // gpclk0
-
- // set SA to output
- INP_GPIO(2);
- OUT_GPIO(2);
- INP_GPIO(3);
- OUT_GPIO(3);
- INP_GPIO(5);
- OUT_GPIO(5);
-
- // set gpio0 (aux0) and gpio1 (aux1) to input
- INP_GPIO(0);
- INP_GPIO(1);
-
- // Set GPIO pins 6,7 and 8-23 to output
- for (g = 6; g <= 23; g++) {
- INP_GPIO(g);
- OUT_GPIO(g);
- }
- printf("Precalculate GPIO8-23 as Output\n");
- gpfsel0_o = *(gpio); // store gpio ddr
- printf("gpfsel0: %#x\n", gpfsel0_o);
- gpfsel1_o = *(gpio + 1); // store gpio ddr
- printf("gpfsel1: %#x\n", gpfsel1_o);
- gpfsel2_o = *(gpio + 2); // store gpio ddr
- printf("gpfsel2: %#x\n", gpfsel2_o);
-
- // Set GPIO pins 8-23 to input
- for (g = 8; g <= 23; g++) {
- INP_GPIO(g);
- }
- printf("Precalculate GPIO8-23 as Input\n");
- gpfsel0 = *(gpio); // store gpio ddr
- printf("gpfsel0: %#x\n", gpfsel0);
- gpfsel1 = *(gpio + 1); // store gpio ddr
- printf("gpfsel1: %#x\n", gpfsel1);
- gpfsel2 = *(gpio + 2); // store gpio ddr
- printf("gpfsel2: %#x\n", gpfsel2);
-
- GPIO_CLR = 1 << 2;
- GPIO_CLR = 1 << 3;
- GPIO_SET = 1 << 5;
-
- GPIO_SET = 1 << 6;
- GPIO_SET = 1 << 7;
+ gpio_enable_200mhz();
// reset cpld statemachine first
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
- m68k_write_memory_8(0xbfe001, 0x0001); // AMIGA OVL high (ROM@0x0)
usleep(1500);
m68k_init();
+ printf("Setting CPU type to %d.\n", cpu_type);
m68k_set_cpu_type(cpu_type);
- m68k_pulse_reset();
+ cpu_pulse_reset();
if (maprom == 1) {
m68k_set_reg(M68K_REG_PC, 0xF80002);
m68k_set_reg(M68K_REG_PC, 0x0);
}
-/*
- pthread_t id;
- int err;
- err = pthread_create(&id, NULL, &iplThread, NULL);
- if (err != 0)
- printf("\ncan't create IPL thread :[%s]", strerror(err));
- else
- printf("\n IPL Thread created successfully\n");
-*/
+ char c = 0, c_code = 0, c_type = 0;
- int cpu_emulation_running = 1;
+ pthread_t id;
+ int err;
+ err = pthread_create(&id, NULL, &iplThread, NULL);
+ if (err != 0)
+ printf("can't create IPL thread :[%s]", strerror(err));
+ else
+ printf("IPL Thread created successfully\n");
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);
- }
+ get_mouse_status(&mouse_dx, &mouse_dy, &mouse_buttons);
+ }
+
+ if (realtime_disassembly && (do_disasm || cpu_emulation_running)) {
+ m68k_disassemble(disasm_buf, m68k_get_reg(NULL, M68K_REG_PC), cpu_type);
+ 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), \
+ 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));
+ 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), \
+ 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));
+ printf("%.8X (%.8X)]] %s\n", m68k_get_reg(NULL, M68K_REG_PC), (m68k_get_reg(NULL, M68K_REG_PC) & 0xFFFFFF), disasm_buf);
+ if (do_disasm)
+ do_disasm--;
+ m68k_execute(1);
+ }
+ else {
+ if (cpu_emulation_running)
+ m68k_execute(loop_cycles);
}
- if (cpu_emulation_running)
- m68k_execute(loop_cycles);
-
- while (kbhit()) {
- char c = getchar();
- if (c == cfg->keyboard_toggle_key && !kb_hook_enabled) {
+ if (irq) {
+ unsigned int status = read_reg();
+ m68k_set_irq((status & 0xe000) >> 13);
+ }
+ else if (gayleirq) {
+ write16(0xdff09c, 0x8000 | (1 << 3));
+ //PAULA_SET_IRQ(3); // IRQ 3 = INT2
+ m68k_set_irq(2);
+ }
+ else {
+ m68k_set_irq(0);
+ }
+
+ while (get_key_char(&c, &c_code, &c_type)) {
+ if (c && 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;
+ else if (kb_hook_enabled) {
+ if (c == 0x1B && c_type) {
+ kb_hook_enabled = 0;
+ printf("Keyboard hook disabled.\n");
+ }
+ else {
+ /*printf("Key code: %.2X - ", c_code);
+ switch (c_type) {
+ case 0:
+ printf("released.\n");
+ break;
+ case 1:
+ printf("pressed.\n");
+ break;
+ case 2:
+ printf("repeat.\n");
+ break;
+ default:
+ printf("unknown.\n");
+ break;
+ }*/
+ if (queue_keypress(c_code, c_type, cfg->platform->id)) {
+ m68k_set_irq(2);
+ }
+ }
}
- if (c == 'r') {
- cpu_emulation_running ^= 1;
- printf("CPU emulation is now %s\n", cpu_emulation_running ? "running" : "stopped");
+
+ if (!kb_hook_enabled && c_type) {
+ if (c && 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 == 'g') {
+ realtime_graphics_debug ^= 1;
+ printf("Real time graphics debug is now %s\n", realtime_graphics_debug ? "on" : "off");
+ }
+ 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 (c == 'd') {
+ realtime_disassembly ^= 1;
+ do_disasm = 1;
+ printf("Real time disassembly is now %s\n", realtime_disassembly ? "on" : "off");
+ }
+ if (c == 'D') {
+ int r = get_mapped_item_by_address(cfg, 0x08000000);
+ if (r != -1) {
+ printf("Dumping first 16MB of mapped range %d.\n", r);
+ FILE *dmp = fopen("./memdmp.bin", "wb+");
+ fwrite(cfg->map_data[r], 16 * SIZE_MEGA, 1, dmp);
+ fclose(dmp);
+ }
+ }
+ if (c == 's' && realtime_disassembly) {
+ do_disasm = 1;
+ }
+ if (c == 'S' && realtime_disassembly) {
+ do_disasm = 128;
+ }
}
}
-/*
- if (toggle == 1){
- srdata = read_reg();
- m68k_set_irq((srdata >> 13) & 0xff);
- } else {
- m68k_set_irq(0);
- };
- usleep(1);
-*/
-
-
- if (GET_GPIO(1) == 0){
- srdata = read_reg();
- m68k_set_irq((srdata >> 13) & 0xff);
- } else {
- if (CheckIrq() == 1){
- write16(0xdff09c, 0x8008);
- m68k_set_irq(2);}
- else
- m68k_set_irq(0);
- };
+ //gpio_handle_irq();
+ //GPIO_HANDLE_IRQ;
}
+ stop_cpu_emulation:;
+
+ if (mouse_fd != -1)
+ close(mouse_fd);
+ if (mem_fd)
+ close(mem_fd);
+
return 0;
}
usleep(100000);
write_reg(0x02);
// printf("Status Reg%x\n",read_reg());
+ if (cfg->platform->handle_reset)
+ cfg->platform->handle_reset(cfg);
+
+ ovl = 1;
+ m68k_write_memory_8(0xbfe201, 0x0001); // AMIGA OVL
+ m68k_write_memory_8(0xbfe001, 0x0001); // AMIGA OVL high (ROM@0x0)
+
+ m68k_pulse_reset();
}
int cpu_irq_ack(int level) {
}
static unsigned int target = 0;
+static uint8_t send_keypress = 0;
+
+uint8_t cdtv_dmac_reg_idx_read();
+void cdtv_dmac_reg_idx_write(uint8_t value);
+uint32_t cdtv_dmac_read(uint32_t address, uint8_t type);
+void cdtv_dmac_write(uint32_t address, uint32_t value, uint8_t type);
+
+#define PLATFORM_CHECK_READ(a) \
+ if (address >= cfg->custom_low && address < cfg->custom_high) { \
+ unsigned int target = 0; \
+ switch(cfg->platform->id) { \
+ case PLATFORM_AMIGA: { \
+ if (address >= PISCSI_OFFSET && address < PISCSI_UPPER) { \
+ return handle_piscsi_read(address, a); \
+ } \
+ if (address >= PINET_OFFSET && address < PINET_UPPER) { \
+ return handle_pinet_read(address, a); \
+ } \
+ if (address >= PIGFX_RTG_BASE && address < PIGFX_UPPER) { \
+ return rtg_read((address & 0x0FFFFFFF), a); \
+ } \
+ if (custom_read_amiga(cfg, address, &target, a) != -1) { \
+ return target; \
+ } \
+ break; \
+ } \
+ default: \
+ break; \
+ } \
+ } \
+ if (ovl || (address >= cfg->mapped_low && address < cfg->mapped_high)) { \
+ if (handle_mapped_read(cfg, address, &target, a) != -1) \
+ return target; \
+ }
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;
- }
- /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- return g_ram[address - FASTBASE];
- }
+ PLATFORM_CHECK_READ(OP_TYPE_BYTE);
+
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("BYTE read from DMAC @%.8X:", address);
+ uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_BYTE);
+ printf("%.2X\n", v);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
+ return v;
+ }*/
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return g_kick[address - KICKBASE];
+ /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
+ stop_cpu_emulation(1);
+ }*/
+
+
+ if (mouse_hook_enabled) {
+ if (address == CIAAPRA) {
+ unsigned char result = (unsigned int)read8((uint32_t)address);
+ if (mouse_buttons & 0x01) {
+ //mouse_buttons -= 1;
+ return (unsigned int)(result ^ 0x40);
+ }
+ else
+ return (unsigned int)result;
}
}
-
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayleB(address);
+ if (kb_hook_enabled) {
+ unsigned char result = (unsigned int)read8((uint32_t)address);
+ if (address == CIAAICR) {
+ if (get_num_kb_queued() && (!send_keypress || send_keypress == 1)) {
+ result |= 0x08;
+ if (!send_keypress)
+ send_keypress = 1;
+ }
+ if (send_keypress == 2) {
+ result |= 0x02;
+ send_keypress = 0;
+ }
+ return result;
}
- }*/
+ if (address == CIAADAT) {
+ if (send_keypress) {
+ uint8_t c = 0, t = 0;
+ pop_queued_key(&c, &t);
+ t ^= 0x01;
+ result = ((c << 1) | t) ^ 0xFF;
+ send_keypress = 2;
+ }
+ return result;
+ }
+ }
- address &=0xFFFFFF;
-// if (address < 0xffffff) {
- return read8((uint32_t)address);
-// }
+ if (address & 0xFF000000)
+ return 0;
-// return 1;
+ return read8((uint32_t)address);
}
unsigned int m68k_read_memory_16(unsigned int address) {
- if (cfg) {
- int ret = handle_mapped_read(cfg, address, &target, OP_TYPE_WORD, ovl);
- if (ret != -1)
- return target;
- }
+ PLATFORM_CHECK_READ(OP_TYPE_WORD);
+
+ /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
+ stop_cpu_emulation(1);
+ }*/
+
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("WORD read from DMAC @%.8X:", address);
+ uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_WORD);
+ printf("%.2X\n", v);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
+ return v;
+ }*/
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) {
+ /*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);
+ return (unsigned int)(result ^ (0x2 << 9));
}
else
- return (unsigned int)result;
- }
- }
- /*if (address > FASTBASE && address < FASTBASE + FASTSIZE) {
- return be16toh(*(uint16_t *)&g_ram[address - FASTBASE]);
- }
-
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return be16toh(*(uint16_t *)&g_kick[address - KICKBASE]);
+ return (unsigned int)(result & 0xFFFD);
}
}
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayle(address);
- }
- }*/
-
-// if (address < 0xffffff) {
- address &=0xFFFFFF;
- return (unsigned int)read16((uint32_t)address);
-// }
+ if (address & 0xFF000000)
+ return 0;
-// return 1;
+ if (address & 0x01) {
+ return ((read8(address) << 8) | read8(address + 1));
+ }
+ return (unsigned int)read16((uint32_t)address);
}
unsigned int m68k_read_memory_32(unsigned int address) {
- 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]);
- }
+ PLATFORM_CHECK_READ(OP_TYPE_LONGWORD);
- if (maprom == 1) {
- if (address > KICKBASE && address < KICKBASE + KICKSIZE) {
- return be32toh(*(uint32_t *)&g_kick[address - KICKBASE]);
- }
- }
+ /*if (m68k_get_reg(NULL, M68K_REG_PC) >= 0x080032F0 && m68k_get_reg(NULL, M68K_REG_PC) <= 0x080032F0 + 0x4000) {
+ stop_cpu_emulation(1);
+ }*/
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- return readGayleL(address);
- }
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("LONGWORD read from DMAC @%.8X:", address);
+ uint32_t v = cdtv_dmac_read(address & 0xFFFF, OP_TYPE_LONGWORD);
+ printf("%.2X\n", v);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
+ return v;
}*/
-// if (address < 0xffffff) {
- address &=0xFFFFFF;
- uint16_t a = read16(address);
- uint16_t b = read16(address + 2);
- return (a << 16) | b;
-// }
+ if (address & 0xFF000000)
+ return 0;
-// return 1;
+ if (address & 0x01) {
+ uint32_t c = read8(address);
+ c |= (be16toh(read16(address+1)) << 8);
+ c |= (read8(address + 3) << 24);
+ return htobe32(c);
+ }
+ uint16_t a = read16(address);
+ uint16_t b = read16(address + 2);
+ return (a << 16) | b;
}
-void m68k_write_memory_8(unsigned int address, unsigned int value) {
- 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;
+#define PLATFORM_CHECK_WRITE(a) \
+ if (address >= cfg->custom_low && address < cfg->custom_high) { \
+ switch(cfg->platform->id) { \
+ case PLATFORM_AMIGA: { \
+ if (address >= PISCSI_OFFSET && address < PISCSI_UPPER) { \
+ handle_piscsi_write(address, value, a); \
+ } \
+ if (address >= PINET_OFFSET && address < PINET_UPPER) { \
+ handle_pinet_write(address, value, a); \
+ } \
+ if (address >= PIGFX_RTG_BASE && address < PIGFX_UPPER) { \
+ rtg_write((address & 0x0FFFFFFF), value, a); \
+ return; \
+ } \
+ if (custom_write_amiga(cfg, address, value, a) != -1) { \
+ return; \
+ } \
+ break; \
+ } \
+ default: \
+ break; \
+ } \
+ } \
+ if (address >= cfg->mapped_low && address < cfg->mapped_high) { \
+ if (handle_mapped_write(cfg, address, value, a) != -1) \
+ return; \
}
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayleB(address, value);
- return;
- }
+void m68k_write_memory_8(unsigned int address, unsigned int value) {
+ PLATFORM_CHECK_WRITE(OP_TYPE_BYTE);
+
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("BYTE write to DMAC @%.8X: %.2X\n", address, value);
+ cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_BYTE);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
+ return;
}*/
if (address == 0xbfe001) {
- ovl = (value & (1 << 0));
- printf("OVL:%x\n", ovl);
+ if (ovl != (value & (1 << 0))) {
+ ovl = (value & (1 << 0));
+ printf("OVL:%x\n", ovl);
+ }
}
-// if (address < 0xffffff) {
- address &=0xFFFFFF;
- write8((uint32_t)address, value);
+ if (address & 0xFF000000)
return;
-// }
-// return;
+ write8((uint32_t)address, value);
+ return;
}
void m68k_write_memory_16(unsigned int address, unsigned int value) {
- 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;
- }
+ PLATFORM_CHECK_WRITE(OP_TYPE_WORD);
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayle(address, value);
- return;
- }
- }*/
-
-// if (address < 0xffffff) {
- address &=0xFFFFFF;
- write16((uint32_t)address, value);
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("WORD write to DMAC @%.8X: %.4X\n", address, value);
+ cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_WORD);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
return;
-// }
-// return;
-}
+ }*/
-void m68k_write_memory_32(unsigned int address, unsigned int value) {
- 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 == 0xDFF030) {
+ char *beb = (char *)&value;
+ printf("%c%c", beb[1], beb[0]);
}
- if (gayle_emulation_enabled) {
- if (address > GAYLEBASE && address < GAYLEBASE + GAYLESIZE) {
- writeGayleL(address, value);
- }
- }*/
-
-// if (address < 0xffffff) {
- address &=0xFFFFFF;
- write16(address, value >> 16);
- write16(address + 2, value);
+ if (address & 0xFF000000)
return;
-// }
-
-// return;
-}
-
-void write16(uint32_t address, uint32_t data) {
- uint32_t addr_h_s = (address & 0x0000ffff) << 8;
- uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
- uint32_t addr_l_s = (address >> 16) << 8;
- uint32_t addr_l_r = (~address >> 16) << 8;
- uint32_t data_s = (data & 0x0000ffff) << 8;
- uint32_t data_r = (~data & 0x0000ffff) << 8;
-
- // asm volatile ("dmb" ::: "memory");
- W16
- *(gpio) = gpfsel0_o;
- *(gpio + 1) = gpfsel1_o;
- *(gpio + 2) = gpfsel2_o;
-
- *(gpio + 7) = addr_h_s;
- *(gpio + 10) = addr_h_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio + 7) = addr_l_s;
- *(gpio + 10) = addr_l_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- // write phase
- *(gpio + 7) = data_s;
- *(gpio + 10) = data_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
- while ((GET_GPIO(0)))
- ;
- // asm volatile ("dmb" ::: "memory");
-}
-
-void write8(uint32_t address, uint32_t data) {
- if ((address & 1) == 0)
- data = data + (data << 8); // EVEN, A0=0,UDS
- else
- data = data & 0xff; // ODD , A0=1,LDS
- uint32_t addr_h_s = (address & 0x0000ffff) << 8;
- uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
- uint32_t addr_l_s = (address >> 16) << 8;
- uint32_t addr_l_r = (~address >> 16) << 8;
- uint32_t data_s = (data & 0x0000ffff) << 8;
- uint32_t data_r = (~data & 0x0000ffff) << 8;
-
- // asm volatile ("dmb" ::: "memory");
- W8
- *(gpio) = gpfsel0_o;
- *(gpio + 1) = gpfsel1_o;
- *(gpio + 2) = gpfsel2_o;
-
- *(gpio + 7) = addr_h_s;
- *(gpio + 10) = addr_h_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio + 7) = addr_l_s;
- *(gpio + 10) = addr_l_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- // write phase
- *(gpio + 7) = data_s;
- *(gpio + 10) = data_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
- while ((GET_GPIO(0)))
- ;
- // asm volatile ("dmb" ::: "memory");
-}
-
-uint32_t read16(uint32_t address) {
- volatile int val;
- uint32_t addr_h_s = (address & 0x0000ffff) << 8;
- uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
- uint32_t addr_l_s = (address >> 16) << 8;
- uint32_t addr_l_r = (~address >> 16) << 8;
-
- // asm volatile ("dmb" ::: "memory");
- R16
- *(gpio) = gpfsel0_o;
- *(gpio + 1) = gpfsel1_o;
- *(gpio + 2) = gpfsel2_o;
-
- *(gpio + 7) = addr_h_s;
- *(gpio + 10) = addr_h_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio + 7) = addr_l_s;
- *(gpio + 10) = addr_l_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- // read phase
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
- GPIO_CLR = 1 << 6;
- while (!(GET_GPIO(0)))
- ;
- GPIO_CLR = 1 << 6;
- val = *(gpio + 13);
- GPIO_SET = 1 << 6;
- // asm volatile ("dmb" ::: "memory");
- return (val >> 8) & 0xffff;
-}
-uint32_t read8(uint32_t address) {
- int val;
- uint32_t addr_h_s = (address & 0x0000ffff) << 8;
- uint32_t addr_h_r = (~address & 0x0000ffff) << 8;
- uint32_t addr_l_s = (address >> 16) << 8;
- uint32_t addr_l_r = (~address >> 16) << 8;
-
- // asm volatile ("dmb" ::: "memory");
- R8
- *(gpio) = gpfsel0_o;
- *(gpio + 1) = gpfsel1_o;
- *(gpio + 2) = gpfsel2_o;
-
- *(gpio + 7) = addr_h_s;
- *(gpio + 10) = addr_h_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- *(gpio + 7) = addr_l_s;
- *(gpio + 10) = addr_l_r;
- GPIO_CLR = 1 << 7;
- GPIO_SET = 1 << 7;
-
- // read phase
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
-
- GPIO_CLR = 1 << 6;
- while (!(GET_GPIO(0)))
- ;
- GPIO_CLR = 1 << 6;
- val = *(gpio + 13);
- GPIO_SET = 1 << 6;
- // asm volatile ("dmb" ::: "memory");
-
- val = (val >> 8) & 0xffff;
- if ((address & 1) == 0)
- return (val >> 8) & 0xff; // EVEN, A0=0,UDS
- else
- return val & 0xff; // ODD , A0=1,LDS
-}
+ if (address & 0x01)
+ printf("Unaligned WORD write!\n");
-/******************************************************/
-
-void write_reg(unsigned int value) {
- STATUSREGADDR
- *(gpio) = gpfsel0_o;
- *(gpio + 1) = gpfsel1_o;
- *(gpio + 2) = gpfsel2_o;
- *(gpio + 7) = (value & 0xffff) << 8;
- *(gpio + 10) = (~value & 0xffff) << 8;
- GPIO_CLR = 1 << 7;
- GPIO_CLR = 1 << 7; // delay
- GPIO_SET = 1 << 7;
- GPIO_SET = 1 << 7;
- // Bus HIGH-Z
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
+ write16((uint32_t)address, value);
+ return;
}
-uint16_t read_reg(void) {
- uint32_t val;
- STATUSREGADDR
- // Bus HIGH-Z
- *(gpio) = gpfsel0;
- *(gpio + 1) = gpfsel1;
- *(gpio + 2) = gpfsel2;
- GPIO_CLR = 1 << 6;
- GPIO_CLR = 1 << 6; // delay
- GPIO_CLR = 1 << 6;
- GPIO_CLR = 1 << 6;
- val = *(gpio + 13);
- GPIO_SET = 1 << 6;
- return (uint16_t)(val >> 8);
-}
-
-//
-// Set up a memory regions to access GPIO
-//
-void setup_io() {
- /* open /dev/mem */
- if ((mem_fd = open("/dev/mem", O_RDWR | O_SYNC)) < 0) {
- printf("can't open /dev/mem \n");
- exit(-1);
- }
-
- /* mmap GPIO */
- gpio_map = mmap(
- NULL, // Any adddress in our space will do
- BCM2708_PERI_SIZE, // Map length
- PROT_READ | PROT_WRITE, // Enable reading & writting to mapped memory
- MAP_SHARED, // Shared with other processes
- mem_fd, // File to map
- BCM2708_PERI_BASE // Offset to GPIO peripheral
- );
-
- close(mem_fd); // No need to keep mem_fd open after mmap
-
- if (gpio_map == MAP_FAILED) {
- printf("gpio mmap error %d\n", (int)gpio_map); // errno also set!
- exit(-1);
- }
+void m68k_write_memory_32(unsigned int address, unsigned int value) {
+ PLATFORM_CHECK_WRITE(OP_TYPE_LONGWORD);
- gpio = ((volatile unsigned *)gpio_map) + GPIO_ADDR / 4;
- gpclk = ((volatile unsigned *)gpio_map) + GPCLK_ADDR / 4;
+ /*if (address >= 0xE90000 && address < 0xF00000) {
+ printf("LONGWORD write to DMAC @%.8X: %.8X\n", address, value);
+ cdtv_dmac_write(address & 0xFFFF, value, OP_TYPE_LONGWORD);
+ m68k_end_timeslice();
+ cpu_emulation_running = 0;
+ return;
+ }*/
-} // setup_io
+ if (address & 0xFF000000)
+ return;
-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;
- }
+ if (address & 0x01)
+ printf("Unaligned LONGWORD write!\n");
- return 0;
+ write16(address, value >> 16);
+ write16(address + 2, value);
+ return;
}
projects / pistorm / blobdiff