// Extracts a file (PRG, SEQ) byte-by-byte to stdout.
void read_file(char *d, int track, int sector) {
char *b = BLOCK(d, track, sector);
while (b) {
if (b[0]) {
write(1, &b[2], 254);
} else {
write(1, &b[2], (unsigned char)b[1]-1);
}
b = nextblock(d, b);
}
}
// Calculate exact file size by reading entire file.
// Fast since its all in ram.
int file_size(char *d, int track, int sector) {
int size = 0;
char *b = BLOCK(d, track, sector);
while (b) {
if (b[0]) {
size += 254;
} else {
size += (unsigned char)b[1]-1;
}
b = nextblock(d, b);
}
return size;
}
int main(int argc, char* argv[]) {
if (argc < 2) {
fprintf(stdout, "Usage: %s <disk.d64> [track] [sector]\n", argv[0]);
return 1;
}
char *d = load_disk(argv[1]);
if (argc == 4) {
read_file(d, atoi(argv[2]), atoi(argv[3]));
return 0;
}
char label[19]; // Includes null & quotes
// Read Disk header
char *b = BLOCK(d, DIR_TRACK, 0);
// Volume label
#ifdef D1581
trim(&label[1], &b[4], sizeof(label)-2);
label[0] = '"';
strcat(label, "\"");
printf("0 %s %c %c\n", label, b[0x19], b[0x1a]);
#else
trim(&label[1], &b[0x90], sizeof(label)-2);
label[0] = '"';
strcat(label, "\"");
printf("0 %s %2.2s %2.2s\n", label, &b[0xa2], &b[0xa5]);
#endif
assert(b[0] == DIR_TRACK);
#ifdef D1581
assert(b[1] == 3);
assert(b[2] == 'D');
#else
assert(b[1] == 1);
assert(b[2] == 'A');
#endif
//hexdump(b);
//write(1, &b[0x90], 16);
lsdir(d, nextblock(d, b));
printf("%d BLOCKS FREE.\n", compute_blocks_free(&b[0]));
}
void lsdir(char *d, char *b) {
struct dir_entry *e;
char fn[19]; // Includes null & quotes
fn[0]= '"';
while (b) {
for (int i=0; i<BLK_SIZE; i+=sizeof(*e)) {
e = (struct dir_entry*)(&b[i]);
if (e->type) {
int size = e->file_size_low + 256*e->file_size_high;
trim(&fn[1], e->filename, sizeof(fn)-2);
strcat(fn, "\"");
printf("%-4d %-18s %s%s (%d,%d) [%d bytes]\n",
size, fn, filetype(e->type), filebits(e->type), e->track, e->sector,
file_size(d, e->track, e->sector));
}
}
b = nextblock(d, b);
}
}
STATIC struct block *
new_block()
{
register struct block *pblock = maxblocklist - 1;
if (!maxblocklist || !(pblock->b_flags & PARTLY)) {
/*
* There is no last block, or it was filled completely,
* so allocate a new blockheader.
*/
register int siz;
pblock = blocklist;
if (maxblocklist == topblocklist) {
/*
* No blockheaders left. Allocate new ones
*/
siz = topblocklist - pblock;
blocklist = pblock = (struct block *)
re_alloc((char *) pblock,
(unsigned) (siz * sizeof(*pblock)),
(unsigned) ((siz + CHUNK) * sizeof(*pblock)));
pblock += siz;
topblocklist = pblock + CHUNK;
maxblocklist = pblock;
for (; pblock < topblocklist; pblock++) {
pblock->b_end = 0;
pblock->b_info = 0;
pblock->b_flags = 0;
}
if (!siz) {
/*
* Create dummy header cell.
*/
maxblocklist++;
}
}
pblock = maxblocklist++;
}
nextblock(pblock);
return pblock;
}
void start(){
initscr();
srand(time(0));
init_background(0,0);
refresh();
keypad(stdscr,TRUE);
pthread_t keyboard; //键盘监听线程
int err = init_network(); //初始化网络模块
if(err!=0){
mvprintw(5,60,"Network model init failed!");
}
start:
initpanel(); //把两个panel清空
initblock(b1);initblock(b2);
printpanel(PANELSTARTX,PANELSTARTY);
err = pthread_create(&keyboard,NULL,keylistener,NULL);
if(err !=0){
printf("can't create thread keyboard listener!");
exit(1);
}
//main thread make the block moving down until the gameover
while(!over){
movemid();
if(caninput(b1)){ //可以放下当前块说明游戏未结束
while( canmovedown() ){ //直到不能下落位置
//继续下落
goahead();
//显示一次
printpanel(PANELSTARTX,PANELSTARTY);
usleep(sleeptime);
}
//save temp panel to preview panel and create new block
savetoprev();
printpanel(PANELSTARTX,PANELSTARTY);
//停止下落后要消除
eliminate();
//把下一个块替换上来
nextblock();
}
else
over=true;
}
attrset(COLOR_PAIR(7));
mvprintw(21,37,"YOU DEAD!Try again?(y/n):");
int input;
int quit = 1;
while(quit){
input=getch(); //判断用户还要不要玩下去
switch(input){
case 'y':
over = 0;
attrset(COLOR_PAIR(0));
mvprintw(21,37," ");
goto start; //重新开始
break;
case 'n': endwin();quit = 0;break;
default:
mvprintw(21,37,"YOU DEAD!Try again?(y/n):");
}
}
}