int test_status() {
asic_t *asic = asic_init(TI83p, NULL);
z80iodevice_t status = init_status(asic);
// Test battery status
asic->battery = BATTERIES_GOOD;
asic->battery_remove_check = 0;
uint8_t value = status.read_in(status.device);
if (!(value & 1)) {
asic_free(asic);
return 1;
}
// Test flash
asic->mmu->flash_unlocked = 1;
value = status.read_in(status.device);
if (!(value & 4)) {
asic_free(asic);
return 1;
}
asic->mmu->flash_unlocked = 0;
value = status.read_in(status.device);
if (value & 4) {
asic_free(asic);
return 1;
}
asic_free(asic);
return 0;
}
int test_link_assist_rx() {
asic_t *asic = asic_init(TI83pSE, NULL);
z80iodevice_t link_assist_rx_read = asic->cpu->devices[0x0A];
z80iodevice_t link_assist_status = asic->cpu->devices[0x09];
link_state_t *state = link_assist_rx_read.device;
if (!link_recv_byte(asic, 0xBE)) {
asic_free(asic);
return 1;
}
if (link_recv_byte(asic, 0xEF)) {
asic_free(asic);
return 2;
}
uint8_t status = link_assist_status.read_in(state);
if (status != state->assist.status.u8 ||
!state->assist.status.rx_ready ||
!state->assist.status.int_rx_ready) {
return 3;
}
uint8_t val = link_assist_rx_read.read_in(state);
if (val != 0xBE) {
return 4;
}
status = link_assist_status.read_in(state);
if (status != state->assist.status.u8 ||
state->assist.status.rx_ready ||
state->assist.status.int_rx_ready) {
return 5;
}
return 0;
}
int test_LDDR() {
asic_t *device = asic_init(TI83p, NULL);
uint8_t test[] = { 0xED, 0xB8 }; // LDDR
device->cpu->registers.HL = 0xC004;
device->cpu->registers.DE = 0xD004;
device->cpu->registers.BC = 5;
cpu_write_byte(device->cpu, 0xC000, 0x11);
cpu_write_byte(device->cpu, 0xC001, 0x22);
cpu_write_byte(device->cpu, 0xC002, 0x33);
cpu_write_byte(device->cpu, 0xC003, 0x44);
cpu_write_byte(device->cpu, 0xC004, 0x55);
flash(device, test, sizeof(test));
int cycles = cpu_execute(device->cpu, 100);
if (cpu_read_byte(device->cpu, 0xD000) != 0x11 ||
cpu_read_byte(device->cpu, 0xD001) != 0x22 ||
cpu_read_byte(device->cpu, 0xD002) != 0x33 ||
cpu_read_byte(device->cpu, 0xD003) != 0x44 ||
cpu_read_byte(device->cpu, 0xD004) != 0x55 ||
device->cpu->registers.HL != 0xBFFF ||
device->cpu->registers.DE != 0xCFFF ||
device->cpu->registers.BC != 0 ||
cycles != 0) {
asic_free(device);
return 1;
}
asic_free(device);
return 0;
}
int test_CPD() {
asic_t *device = asic_init(TI83p, NULL);
uint8_t test[] = { 0xED, 0xA9 }; // CPD
device->cpu->registers.HL = 0xC002;
device->cpu->registers.BC = 5;
device->cpu->registers.A = 0x11;
cpu_write_byte(device->cpu, 0xC000, 0x11);
cpu_write_byte(device->cpu, 0xC001, 0x22);
cpu_write_byte(device->cpu, 0xC002, 0x33);
flash(device, test, sizeof(test));
int cycles = cpu_execute(device->cpu, 16);
if (device->cpu->registers.flags.Z != 0 ||
device->cpu->registers.HL != 0xC001 ||
device->cpu->registers.BC != 4 ||
cycles != 0) {
asic_free(device);
return 1;
}
device->cpu->registers.PC = 0;
cpu_execute(device->cpu, 16);
device->cpu->registers.PC = 0;
cpu_execute(device->cpu, 16);
if (device->cpu->registers.flags.Z != 1 ||
device->cpu->registers.HL != 0xBFFF ||
device->cpu->registers.BC != 2) {
asic_free(device);
return 1;
}
asic_free(device);
return 0;
}
int hardware_sys_init() {
/* Setup ASIC stuff */
asic_init();
/* VBlank multiplexer */
vblank_init();
initted = 1;
return 0;
}
int test_memorymapping_others() {
asic_t *asic = asic_init(TI84p, NULL);
memory_mapping_state_t *state = asic->cpu->devices[0x04].device;
state->ram_bank_page = 1;
state->bank_a_page = 0;
state->bank_a_flash = 0;
reload_mapping(state);
ti_write_byte(asic->mmu, 0x4000, 0x12);
if (asic->mmu->ram[0] != 0x12) {
asic_free(asic);
return 1;
}
asic->mmu->ram[0x4000] = 0x34;
if (ti_read_byte(asic->mmu, 0xC000) != 0x34) {
asic_free(asic);
return 2;
}
state->map_mode = 1;
state->bank_a_page = 0;
state->bank_a_flash = 0;
state->bank_b_page = 0;
state->bank_b_flash = 0;
reload_mapping(state);
if (ti_read_byte(asic->mmu, 0x4000) != 0x12) {
asic_free(asic);
return 3;
}
if (ti_read_byte(asic->mmu, 0x8000) != 0x34) {
asic_free(asic);
return 4;
}
if (ti_read_byte(asic->mmu, 0xC000) != 0x12) {
asic_free(asic);
return 5;
}
return 0;
}
int test_link_port() {
asic_t *asic = asic_init(TI83p, NULL);
z80iodevice_t link = asic->cpu->devices[0x00];
link_state_t *state = link.device;
uint8_t value = link.read_in(state);
if (value != 0) {
asic_free(asic);
return 1;
}
link.write_out(state, 0x01);
value = link.read_in(state);
if (value != 0x11) {
asic_free(asic);
return 2;
}
return 0;
}
int test_CPDR() {
asic_t *device = asic_init(TI83p);
uint8_t test[] = { 0xED, 0xB9 }; // CPDR
device->cpu->registers.HL = 0xC004;
device->cpu->registers.BC = 5;
device->cpu->registers.A = 0x33;
cpu_write_byte(device->cpu, 0xC001, 0x22);
cpu_write_byte(device->cpu, 0xC002, 0x33);
cpu_write_byte(device->cpu, 0xC003, 0x44);
cpu_write_byte(device->cpu, 0xC004, 0x55);
flash(device, test, sizeof(test));
int cycles = cpu_execute(device->cpu, 58);
if (device->cpu->registers.HL != 0xC001 ||
device->cpu->registers.BC != 2 ||
cycles != 0) {
asic_free(device);
return 1;
}
asic_free(device);
return 0;
}
int test_link_assist_tx() {
asic_t *asic = asic_init(TI83pSE, NULL);
z80iodevice_t link_assist_tx_read = asic->cpu->devices[0x0D];
z80iodevice_t link_assist_status = asic->cpu->devices[0x09];
link_state_t *state = link_assist_tx_read.device;
if (link_read_tx_buffer(asic) != EOF) {
asic_free(asic);
return 1;
}
uint8_t status = link_assist_status.read_in(state);
if (status != state->assist.status.u8 ||
!state->assist.status.tx_ready ||
!state->assist.status.int_tx_ready) {
return 2;
}
link_assist_tx_read.write_out(state, 0xDE);
status = link_assist_status.read_in(state);
if (status != state->assist.status.u8 ||
state->assist.status.tx_ready ||
state->assist.status.int_tx_ready) {
return 3;
}
if (link_read_tx_buffer(asic) != 0xDE) {
return 4;
}
status = link_assist_status.read_in(state);
if (status != state->assist.status.u8 ||
!state->assist.status.tx_ready ||
!state->assist.status.int_tx_ready) {
return 5;
}
return 0;
}
int test_LDI() {
asic_t *device = asic_init(TI83p);
uint8_t test[] = { 0xED, 0xA0 }; // LDI
device->cpu->registers.HL = 0xC000;
device->cpu->registers.DE = 0xD000;
device->cpu->registers.BC = 5;
cpu_write_byte(device->cpu, 0xC000, 0x11);
cpu_write_byte(device->cpu, 0xC001, 0x22);
cpu_write_byte(device->cpu, 0xC002, 0x33);
cpu_write_byte(device->cpu, 0xC003, 0x44);
cpu_write_byte(device->cpu, 0xC004, 0x55);
flash(device, test, sizeof(test));
int cycles = cpu_execute(device->cpu, 16);
if (cpu_read_byte(device->cpu, 0xD000) != 0x11 ||
device->cpu->registers.HL != 0xC001 ||
device->cpu->registers.DE != 0xD001 ||
device->cpu->registers.BC != 4 ||
cycles != 0) {
asic_free(device);
return 1;
}
asic_free(device);
return 0;
}
bool emu_start() {
bool ret = false;
long lSize;
asic_init();
if (rom_image == NULL) {
gui_console_printf("No ROM image specified.");
}
else {
FILE *rom = fopen_utf8(rom_image, "rb");
do {
if (rom) {
uint16_t field_type;
const uint8_t *outer;
const uint8_t *current;
const uint8_t *data;
uint32_t outer_field_size;
uint32_t data_field_size;
ti_device_type device_type;
uint32_t offset;
// Get ROM file size
if (fseek(rom, 0L, SEEK_END) < 0) {
break;
}
lSize = ftell(rom);
if (lSize < 0) {
break;
}
if (fseek(rom, 0L, SEEK_SET) < 0) {
break;
}
// Read whole ROM.
if (fread(asic.mem->flash.block, 1, lSize, rom) < (size_t)lSize) {
break;
}
// Parse certificate fields to determine model.
//device_type = (ti_device_type)(asic.mem->flash.block[0x20017]);
// We've heard of the OS base being at 0x30000 on at least one calculator.
for (offset = 0x20000U; offset < 0x40000U; offset += 0x10000U) {
outer = asic.mem->flash.block;
// Outer 0x800(0) field.
if (cert_field_get(outer + offset, asic.mem->flash.size - offset, &field_type, &outer, &outer_field_size)) {
break;
}
if (field_type != 0x800F /*|| field_type == 0x800D || field_type == 0x800E*/) {
continue;
}
//fprintf(stderr, "outer: %p\t%04X\t%p\t%u\n", asic.mem->flash.block, field_type, outer, outer_field_size);
// Inner 0x801(0) field: calculator model
if (cert_field_get(outer, outer_field_size, &field_type, &data, &data_field_size)) {
break;
}
//fprintf(stderr, "inner 1: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (field_type != 0x8012 || data[0] != 0x13) {
break;
}
// Inner 0x802(0) field: skip.
data_field_size = outer_field_size - (data + data_field_size - outer);
data = outer;
if (cert_field_next(&data, &data_field_size)) {
break;
}
//fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
current = data;
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
//fprintf(stderr, "inner 2: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (field_type != 0x8021) {
break;
}
// Inner 0x803(0) field: skip.
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
//fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
//fprintf(stderr, "inner 3: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (field_type != 0x8032) {
break;
}
// Inner 0x80A(0) field: skip.
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
//fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
//fprintf(stderr, "inner 4: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (field_type != 0x80A1) {
break;
}
// Inner 0x80C(0) field: keep.
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
//fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
//fprintf(stderr, "inner 5: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);
if (field_type != 0x80C2) {
break;
}
//fprintf(stderr, "Found calculator type %02X\n", data[1]);
if (data[1] != 0 && data[1] != 1) {
break;
}
device_type = (ti_device_type)(data[1]);
// If we come here, we've found something.
ret = true;
break;
}
if (ret) {
control.device_type = device_type;
asic.device_type = device_type;
}
}
} while(0);
if (!ret) {
gui_console_printf("Error opening ROM image.\n", rom_image);
emu_cleanup();
}
if (rom) {
fclose(rom);
}
}
return ret;
}
bool emu_start(const char *romImage, const char *savedImage) {
bool ret = false;
long lSize;
FILE *imageFile = NULL;
gui_set_busy(true);
do {
if(savedImage != NULL) {
emu_image_t *image;
imageFile = fopen_utf8(savedImage, "rb");
if (!imageFile) {
break;
}
if (fseek(imageFile, 0L, SEEK_END) < 0) {
break;
}
lSize = ftell(imageFile);
if (lSize < 0) {
break;
}
if (fseek(imageFile, 0L, SEEK_SET) < 0) {
break;
}
if((size_t)lSize < sizeof(emu_image_t)) {
break;
}
image = (emu_image_t*)malloc(lSize);
if(!image) {
break;
}
if(fread(image, lSize, 1, imageFile) != 1) {
free(image);
break;
}
sched_reset();
sched.items[SCHED_THROTTLE].clock = CLOCK_27M;
sched.items[SCHED_THROTTLE].proc = throttle_interval_event;
asic_init();
asic_reset();
if(image->version != imageVersion || !asic_restore(image)) {
emu_cleanup();
free(image);
break;
}
free(image);
ret = true;
} else {
asic_init();
if (romImage == NULL) {
gui_console_printf("[CEmu] No ROM image specified.\n");
break;
} else {
FILE *romFile = fopen_utf8(romImage, "rb");
do {
if (romFile) {
uint16_t field_type;
const uint8_t *outer;
const uint8_t *current;
const uint8_t *data;
uint32_t outer_field_size;
uint32_t data_field_size;
ti_device_t device_type;
uint32_t offset;
/* Get ROM file size */
if (fseek(romFile, 0L, SEEK_END) < 0) {
break;
}
lSize = ftell(romFile);
if (lSize < 0) {
break;
}
if (fseek(romFile, 0L, SEEK_SET) < 0) {
break;
}
/* Read whole ROM. */
if (fread(mem.flash.block, 1, lSize, romFile) < (size_t)lSize) {
break;
}
if (mem.flash.block[0x7E] == 0xFE) {
break;
}
/* Parse certificate fields to determine model. */
/* device_type = (ti_device_type)(asic.mem->flash.block[0x20017]); */
/* We've heard of the OS base being at 0x30000 on at least one calculator. */
for (offset = 0x20000U; offset < 0x40000U; offset += 0x10000U) {
outer = mem.flash.block;
/* Outer 0x800(0) field. */
if (cert_field_get(outer + offset, mem.flash.size - offset, &field_type, &outer, &outer_field_size)) {
break;
}
if (field_type != 0x800F /*|| field_type == 0x800D || field_type == 0x800E*/) {
continue;
}
/*fprintf(stderr, "outer: %p\t%04X\t%p\t%u\n", asic.mem->flash.block, field_type, outer, outer_field_size);*/
/* Inner 0x801(0) field: calculator model */
if (cert_field_get(outer, outer_field_size, &field_type, &data, &data_field_size)) {
break;
}
/*fprintf(stderr, "inner 1: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (field_type != 0x8012 || data[0] != 0x13) {
break;
}
/* Inner 0x802(0) field: skip. */
data_field_size = outer_field_size - (data + data_field_size - outer);
data = outer;
if (cert_field_next(&data, &data_field_size)) {
break;
}
/*fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
current = data;
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
/*fprintf(stderr, "inner 2: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (field_type != 0x8021) {
break;
}
/* Inner 0x803(0) field: skip. */
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
/*fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
/*fprintf(stderr, "inner 3: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (field_type != 0x8032) {
break;
}
/* Inner 0x80A(0) field: skip. */
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
/*fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
/*fprintf(stderr, "inner 4: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (field_type != 0x80A1) {
break;
}
/* Inner 0x80C(0) field: keep. */
data_field_size = outer_field_size - (data + data_field_size - outer);
data = current;
if (cert_field_next(&data, &data_field_size)) {
break;
}
current = data;
/*fprintf(stderr, "data: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (cert_field_get(current, data_field_size, &field_type, &data, &data_field_size)) {
break;
}
/*fprintf(stderr, "inner 5: %p\t%04X\t%p\t%u\n", outer, field_type, data, data_field_size);*/
if (field_type != 0x80C2) {
break;
}
/*fprintf(stderr, "Found calculator type %02X\n", data[1]);*/
if (data[1] != 0 && data[1] != 1) {
break;
}
device_type = (ti_device_t)(data[1]);
/* If we come here, we've found something. */
ret = true;
break;
}
if (ret) {
set_device_type(device_type);
}
}
} while(0);
if (romFile) {
fclose(romFile);
}
}
}
} while(0);
if (imageFile) {
fclose(imageFile);
}
if (!ret) {
gui_console_printf("[CEmu] Error opening image (Corrupted certificate?)\n");
emu_cleanup();
}
gui_set_busy(false);
return ret;
}