Apple-2-Tools/ProDOS-Utilities
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Fix comments for documentation

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This commit is contained in:
Terence Boldt 2022-01-23 18:51:44 -05:00
parent e590b82196
commit 7f727a6377
2 changed files with 15 additions and 5 deletions
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6
prodos/directory.go
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@ -39,11 +39,17 @@ type DirectoryHeader struct {
} }
const ( const (
// File is deleted
StorageDeleted = 0 StorageDeleted = 0
// File is <= 512 bytes
StorageSeedling = 1 StorageSeedling = 1
// File is > 512 bytes and <= 128 KB
StorageSapling = 2 StorageSapling = 2
// File is > 128 KB and <= 16 MB
StorageTree = 3 StorageTree = 3
// Pacal storage area
StoragePascal = 4 StoragePascal = 4
// Directory
StorageDirectory = 13 StorageDirectory = 13
) )

4
prodos/memfile.go
View File

@ -6,20 +6,24 @@
package prodos package prodos
// MemoryFile containts file data and size
type MemoryFile struct { type MemoryFile struct {
data []byte data []byte
size int size int
} }
// NewMemoryFile creates an in-memory file of the specified size in bytes
func NewMemoryFile(size int) *MemoryFile { func NewMemoryFile(size int) *MemoryFile {
return &MemoryFile{make([]byte, size), size} return &MemoryFile{make([]byte, size), size}
} }
// WriteAt writes data to the specified offset in the file
func (memoryFile *MemoryFile) WriteAt(data []byte, offset int64) (int, error) { func (memoryFile *MemoryFile) WriteAt(data []byte, offset int64) (int, error) {
copy(memoryFile.data[int(offset):], data) copy(memoryFile.data[int(offset):], data)
return len(data), nil return len(data), nil
} }
// ReadAt reads data from the specified offset in the file
func (memoryFile *MemoryFile) ReadAt(data []byte, offset int64) (int, error) { func (memoryFile *MemoryFile) ReadAt(data []byte, offset int64) (int, error) {
copy(data, memoryFile.data[int(offset):]) copy(data, memoryFile.data[int(offset):])
return len(data), nil return len(data), nil