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229 lines
6.4 KiB
Plaintext
229 lines
6.4 KiB
Plaintext
UNIVERSAL OVRPAR - OVERLAY FILE PARAMETERS FOR LINK
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SUBTTL DAVE NEFF/DZN/HD/PAH/RJF 5-Feb-88
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;COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1973,1986,1988.
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; ALL RIGHTS RESERVED.
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;
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;THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
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;ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
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;INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
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;COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
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;OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
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;TRANSFERRED.
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;
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;
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;THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
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;AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
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;CORPORATION.
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;
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;DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
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;SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
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CUSTVR==0 ;CUSTOMER VERSION
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DECVER==5 ;DEC VERSION
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DECMVR==1 ;DEC MINOR VERSION
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DECEVR==220 ;DEC EDIT VERSION
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SEARCH MACTEN
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SALL
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.DIRECT .NOBIN ;DON'T BOTHER WITH A .REL FILE
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%OVRLA==<BYTE(3)CUSTVR(9)DECVER(6)DECMVR(18)DECEVR>
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SUBTTL REVISION HISTORY
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;START OF VERSION 5 (CREATION)
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;100 DZN 8-Feb-80
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; Creation. Combine common overlay file parameters for use by LINK and
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; OVRLAY.
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;START OF VERSION 5.1
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;104 HD 17-Jun-82
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; Add the symbol A.DSC for the FORTRAN/COBOL byte string descriptor.
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;
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;202 PAH 6-Jan-82
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; Update copyright notice and clean up listings for release.
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;Start of Version 6.0
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;214 HD 28-May-86
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; New coporate copywrite statement.
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;220 RJF 5-Feb-88
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; Update copyright to 1988.
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SUBTTL OVERLAY FILE DIRECTORY AND PREAMBLE
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;MAXIMUM NUMBER OF OVERLAY LINKS ALLOWED, FOR MEMORY MANAGEMENT.
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ND LN.OVL,^D128*^D10*2 ;MAX. NO. OF OVERLAYS ALLOWED
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LOC 0
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DI.HDR:!BLOCK 1 ;CODE ,, LENGTH
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DI.RGN:!BLOCK 1 ;NO OF REGIONS
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DI.VER:!BLOCK 1 ;VERSION #
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DI.LPT:!BLOCK 1 ;-LENGTH AND BLOCK NUMBER OF LINK NUMBER TABLE
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DI.NPT:!BLOCK 1 ;-LENGTH AND BLOCK NUMBER OF LINK NAME TABLE
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DI.WPT:!BLOCK 1 ;[100] -LENGTH AND BLOCK NUMBER OF WRITABLE LINK TABLE
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DI.FLG:!BLOCK 1 ;[100] FLAGS
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OD.RLC==1B0 ;[100] RELOCATABLE OVERLAYS WERE REQUESTED
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OD.WRT==1B1 ;[100] WRITABLE OVERLAYS WERE REQUESTED
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DI.LEN==. ;LENGTH OF DIRECTORY
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RELOC
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;WRITABLE LINK TABLE. TWO FLAG BITS PER LINK, INDEXED BY LINK NUMBER.
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OW.WRT==1B34 ;[100] THIS LINK IS WRITABLE
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OW.PAG==1B35 ;[100] THIS LINK IS CURRENTLY PAGED TO nnnOVL.TMP
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WR.LEN==<LN.OVL+^D17>/^D18 ;[100] LENGTH OF WRITABLE LINK TABLE
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;PREAMBLE OF EACH LINK SECTION
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LOC 0
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PH.HDR:!BLOCK 1 ;0,,LENGTH
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PH.RGN:!BLOCK 1 ;REGION NUMBER
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PH.NUM:!BLOCK 1 ;LINK NUMBER
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PH.NAM:!BLOCK 1 ;LOGICAL NAME
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PH.BPT:!BLOCK 1 ;BACK POINTER
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PH.FPT:!BLOCK 1 ;FORWARD POINTER
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PH.EPT:!BLOCK 1 ;EQUIVALENCE POINTER
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PH.CST:!BLOCK 1 ;ADDRESS OF CONTROL SECTION
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PH.FLG:!BLOCK 1 ;FLAGS
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PH.ADD:!BLOCK 1 ;ADDRESS LOADED AT
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PH.LLN:!BLOCK 1 ;[100] LENGTH OF LINK
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PH.OVL:!BLOCK 1 ;BLOCK # FOR CODE
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PH.SYM:!BLOCK 1 ;BLOCK # FOR SYMBOLS (FUTURE)
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PH.REL:!BLOCK 1 ;BLOCK # FOR RELOC FIXUP
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PH.ORL:!BLOCK 1 ;BLOCK # FOR OTHER RELOC TABLES
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PH.GLB:!BLOCK 1 ;NOT USED
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PH.RDX:!BLOCK 1 ;BLOCK # FOR DDT SYMBOL TABLE
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PH.RDR:!BLOCK 1 ;BLOCK # FOR RELOC FOR DDT SYMBOLS
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PH.NFL:!BLOCK 1 ;NEXT FREE LOCATION
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PH.LEN==. ;[100] LENGTH OF PREAMBLE
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RELOC
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SUBTTL IN-MEMORY OVERLAY FILE OFFSETS
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LOC 0
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CS.HDR:! ;HEADER (LH)
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CS.LLN:!BLOCK 1 ;[100] LENGTH (RH)
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CS.RGN:!BLOCK 1 ;REGION #
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CS.NUM:!BLOCK 1 ;LINK NUMBER
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CS.LNM:!BLOCK 1 ;LOGICAL NAME
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CS.BPT:! ;BACK POINTER
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CS.FPT:! ;FORWARD POINTER
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CS.PTR:!BLOCK 1 ;..
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CS.SYM:!BLOCK 1 ;SYMBOL TABLE PTR.
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CS.FLG:! ;FLAGS
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CF.RLO==1B17 ;OTHER RELOCATION STILL TO DO
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CS.STA:!BLOCK 1 ;START ADDRESS (RH)
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CS.SIZ:! ;LENGTH (LH)
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CS.ADR:! ;ADDRESS (RH)
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CS.COR:!BLOCK 1 ;..
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CS.EXT:!BLOCK 1 ;AOBJN PTR TO EXTERNAL TRANSFER TABLES
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CS.INT:!BLOCK 1 ;AOBJN PTR TO INTERNAL TRANSFER TABLES
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CS.DDT:!BLOCK 1 ;POINTER TO DDT SYMBOLS ON DSK
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CS.RLC:!BLOCK 1 ;HOLD OFFSET IF RELOCATED
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CS.OVL:!BLOCK 1 ;[100] COPY OF PH.OVL FOR WRITABLE OVERLAYS
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CS.OSY:!BLOCK 1 ;[100] ORIGINAL COPY OF CS.SYM
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CS.LEN==. ;[100] LENGTH OF CONTROL SECTION
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RELOC
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;EXTTAB ENTRY OFFSETS
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LOC 0
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ET.OVL:!BLOCK 1 ;JSP T1,.OVRLA
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ET.FLG:! ;FLAGS (BITS 0-8)
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F.LIC==400000,,0 ;LINK IN CORE
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F.MDL==200000,,0 ;ROUTINE IN MULTIPLE LINKS
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F.RLC==100000,,0 ;LINK IS RELOCATED
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ET.RGN:! ;REGION # (BITS 9-17)
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ET.ADR:!BLOCK 1 ;ADDRESS IF IN CORE (RH)
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ET.NUM:! ;NUMBER (LH)
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ET.MDL:! ;ONLY IF MULTIPLY-DEFINED (POINTS TO TABLE)
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ET.CST:!BLOCK 1 ;THIS CONTROL SECTION (RH)
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ET.BRF:! ;BACK REFERENCE (LH)
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ET.FRF:! ;FORWARD REFERENCE (RH)
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ET.NAM:! ;EXTERNAL REQUEST NAME (IF UNDEFINED)
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ET.REF:!BLOCK 1 ;LINKED REFERENCES
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ET.LEN==. ;LENGTH OF EXTTAB
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RELOC
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;EXTTAB OFFSETS WHEN CALLED BY A JSP
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DEFINE DEFJT(MNEM)<
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IRP MNEM,<JT.'MNEM==ET.'MNEM-1>
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>
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DEFJT <FLG,ADR,CST,MDL,NUM,REF,NAM>
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PURGE DEFJT ;DONE WITH DEFJT MACRO
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;INTTAB ENTRY OFFSETS
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LOC 0
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IT.FLG:! ;FLAGS (BITS 0-12)
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IT.ADD:!BLOCK 1 ;ADDRESS IN CORE (RH)
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IT.REF:!BLOCK 1 ;FORWARD REFERENCE (RH)
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IT.LEN==. ;LENGTH OF INTTAB
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RELOC
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;MULTIPLY-DEFINED ENTRY OFFSETS
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LOC 0
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MT.ADR:!BLOCK 1 ;EQUIV TO ET.ADR
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MT.NUM:! ;LINK # (EQUIV TO ET.NUM)
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MT.CST:!BLOCK 1 ;EQUIV TO ET.CST
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MT.LEN==. ;LENGTH OF MULTIPLY-DEFINED ENTRY TABLE
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RELOC
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SUBTTL FUNCT. FUNCTION CODES AND ARGUMENT TYPES
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;FUNCT. FUNCTION CODES
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F.ILL==0 ;ALWAYS ILLEGAL
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F.GAD==1 ;GET SPECIFIC ADDRESS
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F.COR==2 ;GET ANY ADDRESS
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F.RAD==3 ;RETURN SPECIFIC ADDRESS
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F.GCH==4 ;GET ANY CHANNEL (OBSOLETE WITH EXTENDED CHANNELS)
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F.RCH==5 ;RETURN SPECIFIC CHANNEL (OBSOLETE WITH EXTENDED CHANNELS)
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F.GOT==6 ;GET MEMORY FROM OTS
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F.ROT==7 ;RETURN MEMORY TO OTS
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F.RNT==10 ;GET INITIAL RUNTIME FROM OTS
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F.IFS==11 ;GET INITIAL FILE SPEC (TOPS-10 ONLY, OBSOLETE WITH 7.01)
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F.CBC==12 ;CUT BACK MEMORY
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F.RRS==13 ;READ DBMS RETAIN STATUS
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F.WRS==14 ;WRITE DBMS RETAIN STATUS
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F.GPG==15 ;GET MEMORY ON A PAGE BOUNDARY
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F.RPG==16 ;RETURN MEMORY ALLOCATED BY F.GPG
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;FUNCT. (AND FORTRAN AND COBOL) ARGUMENT TYPES
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A.UND==0 ;UNDEFINED (UNKNOWN)
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A.LOG==1 ;FORTRAN LOGICAL
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A.SPI==2 ;SINGLE PRECISION INTEGER
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A.SPR==4 ;SINGLE PRECISION REAL
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A.OCT==6 ;SINGLE PRECISION OCTAL
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A.LBL==7 ;LABEL OR SECTION ADDRESS
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A.DPR==10 ;DOUBLE PRECISION REAL
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A.DPI==11 ;DOUBLE PRECISION INTEGER
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A.DO==12 ;DOUBLE PRECISION OCTAL
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A.CMP==14 ;COMPLEX
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A.DSC==15 ;[104] STRING DESCRIPTOR
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A.AS==17 ;LITERAL STRING
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SUBTTL THE END
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END
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