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bootdefs.mesa Z4-0CT-77 21:15:31 Page 1 -- BootDefs.Mesa Edited by Sandman on July 22, 1977 2:18 PM DIRECTORY AltoDefs: FROM "altodefs", AltoFileDefs: FROM "altofiledefs", SegmentDefs: FROM "segmentdefs": DEFINITIONS FROM SegmentDefs: BootDefs: DEFINITIONS SHARES SegmentDefs ~ BEGIN -- Boot Primative Objects BootDataSegment: PROCEDURE [base: PageNumber, pages: PageCount] RETURNS [seg: DataSegmentHandle]: BootFileSegment: PROCEDURE [file: FileHandle, base: PageNumber, pages: PageCount, access: AccessOptions, addr: POINTER] RETURNS [seg: FileSegmentHandle]: BootFile: PROCEDURE [access: AccessOptions] RETURNS [file: FileHandle]: -- Free Objects Frob: TYPE = Free Object: FrobHandle: TYPE = POINTER TO Frob: -- Primative Object Tables TableHandle: TYPE = POINTER TO Table: Table: TYPE = RECORD [ size: CARDINAL, link: SubTableHandle]: SubTableHandle: TYPE = POINTER TO SubTable: SubTable: TYPE = RECORD [ link: SubTableHandle, free: FrobHandle, seal, alloc: AltoDefs.BYTE, seg: DataSegmentHandle]: SystemTable: TYPE = RECORD [ pagemap: POINTER TO ARRAY [0 .. 15] OF WORD, datasegs, filesegs, files: TableHandle]: SystemTableHandle: TYPE = POINTER TO SystemTable: -- Table Management GetPageMap: PROCEDURE RETURNS [POINTER]; GetFileTable: PROCEDURE RETURNS [TableHandle); GetFileSegmentTable: PROCEDURE RETURNS [TableHandle]: GetDataSegmentTable: PROCEDURE RETURNS [TableHandle]: GetSystemTable: PROCEDURE RETURNS [SystemTableHandle); -- Object Management InvalidObject: SIGNAL [table: TableHandle, object: POINTER]; AllocateObject: PROCEDURE [table: TableHandle] RfTURNS [ObjectHandle]; LiberateObject: PROCroURE [table: Tablellandle, object: ObjectHandle]: ValidateObject: PROCEDURE [table: TableHandle, object: Objectllandle]: [numerateObjects: PROCEDURE [table: Tablellandle, proc: PROcrDURf [Objectllandle] RETURNS [BOOLEAN]] RETURNS [object: Objectllandle); -- File Length Operations NormalizerileIndex: PROCrDURr [page: PageNumber, byte: CARDINAL] RETURNS [PageNumber. CARDINAL]; RoundFilelndex: PROCEDURE [page: PageNumber. byte: CARDINAL] RrTURNS [PageNumber. CARDINAL]; TruncateF ileTndex: PROCEDURE [page: PageNumber, byte: CARDINAL] RETURNS [PageNumber. CARDINAL]; -- File Segment POSitioning bootdefs.mesa 24-0CT-77 21:15:31 Page 2 FindSegHint: PROCEDURE [seg: FileSegmentHandle]: PositionSeg: PROCEDURE [seg: FileSegmentHandle. useseg: BOOLEAN] RETURNS [BOOLEAN]: MapVM: PROCEDURE [seg: FileSegmentHandle. de: AltoFileDefs.vDC]: END.