// Load a game
func (deck *ControlDeck) Load(filename string) (err string, success bool) {
defer func() {
if r := recover(); r != nil {
err = fmt.Sprintf("Failed to load %s: %s", filename, r)
success = false
}
}()
deck.InsertedCartridge = cartridge.LoadFile(filename)
// Check ROM against known hashes, and set deck.InsertedCartridge.SHA1
// TODO: maybe this should be in nesfile, or in controldeck?
matches := cartdb.Identify(cartdb.Load(), deck.InsertedCartridge)
fmt.Printf("Cartridge SHA-1 = %s\n", deck.InsertedCartridge.SHA1)
if len(matches) != 0 {
fmt.Printf("cartdb: found %d matching cartridges:\n", len(matches))
}
for i, match := range matches {
fmt.Printf("%d. ", i)
cartdb.DumpMatch(match)
}
// TODO: use info here, to display title/image, or use mapper
deck.InsertedCartridge.LoadPRG(deck.CPU)
deck.InsertedCartridge.LoadCHR(deck.PPU)
// nestest.nes (TODO: better way to have local additions to cartdb!)
if deck.InsertedCartridge.SHA1 == "4131307F0F69F2A5C54B7D438328C5B2A5ED0820" {
// TODO: only do this when running in automated mode, still want GUI mode unaffected
fmt.Printf("Identified nestest; mapping for automation\n")
deck.CPU.MapOver(0xc66e,
// The known-correct log http://nickmass.com/images/nestest.log ends at $C66E, on RTS
func(address uint16)(value uint8) {
// http://nesdev.com/bbs/viewtopic.php?t=7130
result := deck.CPU.ReadFrom(2) << 8 | deck.CPU.ReadFrom(3)
if result == 0 {
fmt.Printf("Nestest automation: Pass\n")
} else {
fmt.Printf("Nestest automation: FAIL with code %.4x\n", result)
}
// Signal to stop CPU (KIL instruction)
// TODO: find a better way to quit the program. Could quit here, but
// then last instruction trace wouldn't match expected log.
deck.InternalRAM[0x0001] = 0x02
return 0x60 },
func(address uint16, value uint8) { },
"nestest-automation")
}
return err, true
}
// Read a bunch of files from a directory
func (deck *ControlDeck) LoadDir(dirname string) {
filenames, err := ioutil.ReadDir(dirname)
if err != nil {
panic(fmt.Sprintf("LoadDir(%s) failed: %s", dirname, err))
}
mapperUsage := make(map[string]int)
// Show information about each file
for _, fileInfo := range filenames {
path := fmt.Sprintf("%s/%s", dirname, fileInfo.Name)
fmt.Printf("%s\n", path)
cart := cartridge.LoadFile(path)
fmt.Printf("%s\t%s\n", cart.MapperName, fileInfo.Name)
mapperUsage[cart.MapperName] += 1
}
// Show mapper usage frequency
fmt.Printf("\n")
for mapper, count := range mapperUsage {
fmt.Printf("%d\t%s\n", count, mapper)
}
}