Add more inforation to directory entry

src/floppy/disk.ts

@@ -30,10 +30,22 @@ export interface IBiosParameterBlock {
   totalSectorsLarge: number
 }
 
+export interface IAttributes {
+  readOnly: boolean
+  hidden: boolean
+  system: boolean
+  volumeId: boolean
+  directory: boolean
+  archive: boolean
+}
+
 export interface IStandardDirEntry {
   type: 'standard-entry'
   name: string
   extension: string
+  attributes: IAttributes
+  size: number
+  firstCluster: number
 }
 
 export interface ILongFileNameDirEntry {
@@ -229,10 +241,28 @@ function decodeDirectoryEntry(data: DataView): DirEntry | null {
     const extension = asciiDecoder.decode(
       data.buffer.slice(data.byteOffset + 8, data.byteOffset + 11),
     )
+
+    const attributeByte = data.getUint8(11)
+
+    const attributes: IAttributes = {
+      readOnly: (attributeByte & 0x01) !== 0,
+      hidden: (attributeByte & 0x02) !== 0,
+      system: (attributeByte & 0x04) !== 0,
+      volumeId: (attributeByte & 0x08) !== 0,
+      directory: (attributeByte & 0x10) !== 0,
+      archive: (attributeByte & 0x20) !== 0,
+    }
+
+    const firstCluster = (data.getUint16(20, true) << 16) | data.getUint16(26, true)
+    const size = data.getUint32(28, true)
+
     return {
       type: 'standard-entry',
       name,
       extension,
+      attributes,
+      firstCluster,
+      size,
     }
   }
 }