39 lines
681 B
Go
39 lines
681 B
Go
package apple2
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import "errors"
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type diskette interface {
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powerOn(cycle uint64)
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powerOff(cycle uint64)
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read(quarterTrack int, cycle uint64) uint8
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write(quarterTrack int, value uint8, cycle uint64)
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}
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func loadDisquette(filename string) (diskette, error) {
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data, err := loadResource(filename)
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if err != nil {
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return nil, err
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}
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if isFileNibOrDsk(data) {
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f, err := newFileNibOrDsk(data)
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if err != nil {
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return nil, err
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}
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var d diskette16sector
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d.nib = f
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return &d, nil
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}
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if isFileWoz(data) {
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f, err := newFileWoz(data)
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if err != nil {
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return nil, err
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}
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return newDisquetteWoz(f)
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}
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return nil, errors.New("Diskette format not supported")
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}
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