uint16_t ti89_get_word(uint32_t adr)
{
// RAM access
if(IN_BOUNDS(0x000000, adr, 0x1fffff))
{
return get_w(tihw.ram, adr, RAM_SIZE_TI89 - 1);
}
// FLASH access
else if(IN_BOUNDS(0x200000, adr, 0x5fffff))
{
return get_w(tihw.rom, adr, ROM_SIZE_TI89 - 1) | wsm.ret_or;
}
// memory-mapped I/O
else if(IN_BOUNDS(0x600000, adr, 0x6fffff))
{
return io_get_word(adr);
}
// memory-mapped I/O (hw2)
else if(IN_RANGE(adr, 0x700000, IO2_SIZE_TI89))
{
return io2_get_word(adr);
}
return 0x1414;
}
uint16_t ti89t_get_word(uint32_t adr)
{
// RAM access
if(IN_BOUNDS(0x000000, adr, 0x03ffff) ||
IN_BOUNDS(0x200000, adr, 0x23ffff) ||
IN_BOUNDS(0x400000, adr, 0x43ffff))
{
return get_w(tihw.ram, adr, 0x03ffff);
}
// FLASH access
else if(IN_BOUNDS(0x800000, adr, 0xbfffff))
{
return FlashReadWord(adr);
}
// memory-mapped I/O
else if(IN_BOUNDS(0x600000, adr, 0x6fffff))
{
return io_get_word(adr);
}
// memory-mapped I/O (hw2)
else if(IN_RANGE(adr, 0x700000, IO2_SIZE_TI89T))
{
return io2_get_word(adr);
}
// memory-mapped I/O (hw3)
else if(IN_RANGE(adr, 0x710000, IO3_SIZE_TI89T))
{
return io3_get_word(adr);
}
return 0x1414;
}
void * receiver(void *args)
{
char word[SZ];
int i;
struct line *on;
struct alias *a;
while(1) {
if(io_get_word(word) <= 0) {
usleep(300000);
continue;
}
// queue management
ui_print("<-- %s\n", word);
// trigger on event
exec_on(word);
if(strcmp(wait_queue_head(), "bin") == 0) {
bin = atoi(word);
for(i = 0;; ) {
a = get_alias("bin", i++);
if(!a) break;
if(a->num == bin)
a->arg++;
}
wait_queue_pop();
} else if(strcmp(word, wait_queue_head()) == 0
|| strcmp(wait_queue_head(), "X") == 0) {
wait_queue_pop();
}
}
return NULL;
}
uint32_t io_get_long(uint32_t addr)
{
return (((uint32_t)io_get_word(addr))<<16) | io_get_word(addr+2);
}
int exec_line(int argc, char *argv[])
{
struct alias *al;
int i;
if(!argc) return 0;
ui_print("do action: ");
for(i = 0; i < argc; i++)
ui_print("%s ", argv[i]);
ui_print("\n");
if(strcmp(argv[0], "load") == 0) {
ui_animation(1);
} else if(strcmp(argv[0], "unload") == 0) {
ui_animation(3);
} else if(strcmp(argv[0], "poweron") == 0) {
power_state = 1;
} else if(strcmp(argv[0], "poweroff") == 0) {
power_state = 1;
} else if(strcmp(argv[0], "putbin") == 0) {
for(i = 0;;) {
al = get_alias("bin", i++);
if(al) ui_bin_update(i, al->arg);
else break;
}
al = get_alias("timeout", 0);
if(al) ui_bin_update(i, al->arg);
} else if(strncmp(argv[0], "send", 4) == 0) {
if(strcmp(argv[0], "send_txt") == 0) {
io_send("\002");
ui_print("--> <STX>\n");
}
for(i = 1; i < argc; i++) {
const char *s = argv[i];
if(strcmp(s, "power_state") == 0)
s = power_state? "1": "NULL";
al = get_alias(s, 0);
ui_print("--> %s\n", al? al->str: s);
io_send(al? al->str: s);
}
if(strcmp(argv[0], "send_txt") == 0) {
io_send("\003");
ui_print("--> <ETX>\n");
}
} else if(strcmp(argv[0], "wait") == 0) {
for(i = 1; i < argc; i++)
wait_queue_add_tail(argv[i]);
for(;!wait_queue_empty(); ui_animation(2));
} else if(strcmp(argv[0], "wait_timeout") == 0) {
struct timeval a, b, d;
int t;
al = get_alias("timeout", 0);
t = al? al->num: TIMEOUT;
for(i = 1; i < argc; i++)
wait_queue_add_tail(argv[i]);
gettimeofday(&a, NULL);
for(;!wait_queue_empty(); ui_animation(2)) {
gettimeofday(&b, NULL);
timersub(&b, &a, &d);
if(d.tv_sec > t) {
ui_print("timeout for waiting %s\n", wait_queue_head());
al->arg++;
return -1;
}
}
} else if(strcmp(argv[0], "handshake") == 0) {
char word[SZ];
ui_print("--> %s\n", argv[1]);
io_send(argv[1]);
while(io_get_word(word) <= 0);
ui_print("<-- %s\n", word);
if(strcmp(word, argv[2]) != 0)
return -1;
}
return 0;
}