void C64::SaveSnapshot(char *filename)
{
FILE *f;
uint8 flags;
uint8 delay;
int stat;
if ((f = fopen(filename, "wb")) == NULL) {
ShowRequester("Unable to open snapshot file", "OK", NULL);
return;
}
fprintf(f, "%s%c", SNAPSHOT_HEADER, 10);
fputc(0, f); // Version number 0
flags = 0;
if (ThePrefs.Emul1541Proc)
flags |= SNAPSHOT_1541;
fputc(flags, f);
SaveVICState(f);
SaveSIDState(f);
SaveCIAState(f);
#ifdef FRODO_SC
delay = 0;
do {
if ((stat = SaveCPUState(f)) == -1) { // -1 -> Instruction not finished yet
ADVANCE_CYCLES; // Advance everything by one cycle
delay++;
}
} while (stat == -1);
fputc(delay, f); // Number of cycles the saved CPUC64 lags behind the previous chips
#else
SaveCPUState(f);
fputc(0, f); // No delay
#endif
if (ThePrefs.Emul1541Proc) {
fwrite(ThePrefs.DrivePath[0], 256, 1, f);
#ifdef FRODO_SC
delay = 0;
do {
if ((stat = Save1541State(f)) == -1) {
ADVANCE_CYCLES;
delay++;
}
} while (stat == -1);
fputc(delay, f);
#else
Save1541State(f);
fputc(0, f); // No delay
#endif
Save1541JobState(f);
}
fclose(f);
}
void C64::SaveRAM(char *filename)
{
FILE *f;
if ((f = fopen(filename, "wb")) == NULL)
ShowRequester("RAM save failed.", "OK", NULL);
else {
fwrite((void*)RAM, 1, 0x10000, f);
fwrite((void*)Color, 1, 0x400, f);
if (ThePrefs.Emul1541Proc)
fwrite((void*)RAM1541, 1, 0x800, f);
fclose(f);
}
}
int blacklistClicked( void )
{
/* routine when gadget "App's Blacklist" is clicked. */
/**
* First of all, make sure the external program exists..
* NOTE: if someone would like to implement it on the GadTools
* program as well it'll be nice!..
*/
BPTR lock;
UBYTE MUI_Prog[] = "SYS:Prefs/ixbl_MUI";
UBYTE Runner_WB[] = "C:WBRun";
UBYTE Runner_CLI[] = "C:Run <>NIL:";
if(!(lock = Lock( MUI_Prog, SHARED_LOCK )))
{
ShowRequester("Couldn't found \"%s\"",(int)MUI_Prog,NULL);
}
else
{
char *runner, cmd[64];
UnLock( lock );
if(!(lock = Lock( Runner_WB, SHARED_LOCK )))
{
runner = Runner_CLI;
}
else
{
UnLock( lock );
runner = Runner_WB;
}
sprintf( cmd, "%s \"%s\"", runner, MUI_Prog );
Execute( cmd, NULL, NULL );
}
return RUNNING;
}
bool C64::LoadSnapshot(char *filename)
{
FILE *f;
if ((f = fopen(filename, "rb")) != NULL) {
char Header[] = SNAPSHOT_HEADER;
char *b = Header, c = 0;
uint8 delay, i;
// For some reason memcmp()/strcmp() and so forth utterly fail here.
while (*b > 32) {
if ((c = fgetc(f)) != *b++) {
b = NULL;
break;
}
}
if (b != NULL) {
uint8 flags;
bool error = false;
#ifndef FRODO_SC
long vicptr; // File offset of VIC data
#endif
while (c != 10)
c = fgetc(f); // Shouldn't be necessary
if (fgetc(f) != 0) {
ShowRequester("Unknown snapshot format", "OK", NULL);
fclose(f);
return false;
}
flags = fgetc(f);
#ifndef FRODO_SC
vicptr = ftell(f);
#endif
error |= !LoadVICState(f);
error |= !LoadSIDState(f);
error |= !LoadCIAState(f);
error |= !LoadCPUState(f);
delay = fgetc(f); // Number of cycles the 6510 is ahead of the previous chips
#ifdef FRODO_SC
// Make the other chips "catch up" with the 6510
for (i=0; i<delay; i++) {
TheVIC->EmulateCycle();
TheCIA1->EmulateCycle();
TheCIA2->EmulateCycle();
}
#endif
if ((flags & SNAPSHOT_1541) != 0) {
Prefs *prefs = new Prefs(ThePrefs);
// First switch on emulation
error |= (fread(prefs->DrivePath[0], 256, 1, f) != 1);
prefs->Emul1541Proc = true;
NewPrefs(prefs);
ThePrefs = *prefs;
delete prefs;
// Then read the context
error |= !Load1541State(f);
delay = fgetc(f); // Number of cycles the 6502 is ahead of the previous chips
#ifdef FRODO_SC
// Make the other chips "catch up" with the 6502
for (i=0; i<delay; i++) {
TheVIC->EmulateCycle();
TheCIA1->EmulateCycle();
TheCIA2->EmulateCycle();
TheCPU->EmulateCycle();
}
#endif
Load1541JobState(f);
} else if (ThePrefs.Emul1541Proc) { // No emulation in snapshot, but currently active?
Prefs *prefs = new Prefs(ThePrefs);
prefs->Emul1541Proc = false;
NewPrefs(prefs);
ThePrefs = *prefs;
delete prefs;
}
#ifndef FRODO_SC
fseek(f, vicptr, SEEK_SET);
LoadVICState(f); // Load VIC data twice in SL (is REALLY necessary sometimes!)
#endif
fclose(f);
if (error) {
ShowRequester("Error reading snapshot file", "OK", NULL);
Reset();
return false;
} else
return true;
} else {
fclose(f);
ShowRequester("Not a Frodo snapshot file", "OK", NULL);
return false;
}
} else {
ShowRequester("Can't open snapshot file", "OK", NULL);
return false;
}
}
