bool Record::load(const char* filename, int number) {
// check suffix
const char* dot = strrchr(filename, '.');
if (dot && strcmp(dot, ".txt") == 0) {
// load log file
snprintf(title, sizeof(title), "%s\n", filename);
FILE* f = fopen(filename, "r");
if (!f) return false;
int n = 1;
unsigned int dt, addr, val;
while (fscanf(f, "%d [%d] = %x ", &dt, &addr, &val) == 3) {
int idle = 0;
while (idle++ < 10 && dt > 17000) {
dt -= 17000;
if (++n >= RECORD_LENGTH) goto END;
memcpy(&data[n], &data[n - 1], 25);
}
data[n][addr] = val;
}
END:
fclose(f);
return true;
}
// load sid tune
unsigned short init_addr;
unsigned short play_addr;
unsigned char speed;
unsigned char song;
unsigned char max_songs;
char name[32];
char author[32];
char copyright[32];
c64Init();
int ret = c64SidLoad(filename, &init_addr, &play_addr, &song, &max_songs,
&speed, name, author, copyright);
if (!ret) return false;
if (number > 0 && number <= max_songs + 1) song = number - 1;
cpuJSR(init_addr, song);
snprintf(title, sizeof(title), "%s - %s - %s - %d/%d\n",
name, author, copyright, song + 1, max_songs + 1);
for (int i = 0; i < RECORD_LENGTH; i++) {
cpuJSR(play_addr, 0);
memcpy(&data[i][0], &memory[0xd400], 25);
}
return true;
}
unsigned short LoadSIDFromMemory(void *pSidData, unsigned short *load_addr,
unsigned short *init_addr, unsigned short *play_addr,
unsigned char *subsongs, unsigned char *startsong, unsigned char *speed,
unsigned short size) {
unsigned char *pData = (unsigned char*)pSidData;
unsigned char data_file_offset = pData[7];
*load_addr = pData[8]<<8;
*load_addr|= pData[9];
*init_addr = pData[10]<<8;
*init_addr|= pData[11];
*play_addr = pData[12]<<8;
*play_addr|= pData[13];
*subsongs = pData[0xf]-1;
*startsong = pData[0x11]-1;
*load_addr = pData[data_file_offset];
*load_addr|= pData[data_file_offset+1]<<8;
*speed = pData[0x15];
memset(memory, 0, sizeof(memory));
memcpy(&memory[*load_addr], &pData[data_file_offset+2], size-(data_file_offset+2));
if(!*play_addr) {
cpuJSR(*init_addr, 0);
*play_addr = (memory[0x0315]<<8)+memory[0x0314];
}
return *load_addr;
}
