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FORTRAN-10_Alpha_31-jul-86
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reqrel.bli
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!COPYRIGHT (c) DIGITAL EQUIPMENT CORPORATION 1981, 1986
!ALL RIGHTS RESERVED.
!
!THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND COPIED
!ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH THE
!INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR ANY OTHER
!COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE AVAILABLE TO ANY
!OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE SOFTWARE IS HEREBY
!TRANSFERRED.
!
!THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE
!AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT
!CORPORATION.
!
!DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF ITS
!SOFTWARE ON EQUIPMENT WHICH IS NOT SUPPLIED BY DIGITAL.
! Author: */TFV/CDM/AHM/MEM
GLOBAL BIND REQREV = #11^24 + 0^18 + #4530; ! Version Date: 17-Feb-86
%(
***** Begin Revision History *****
***** Begin Version 7 *****
1 1245 TFV 3-Aug-81 ------
Add RDATBLK for sparse data blocks.
2 1242 CKS 2-Sep-81
Add RCHDATA for initialization of character strings
3 1466 CDM 1-Feb-82
Add binds for values of LINK type codes for the EVALU table.
1511 CDM 18-Mar-82
Add RWRITELINK for SAVE statement rel block.
1512 AHM 23-Mar-82
Define RLONGSYMBOL rel block type, PXxxxx rel file psect
indices and function names for ZSYMBOL routine.
1521 CDM 26-Mar-82
Add macros and binds for arg checking
1525 AHM 1-Apr-82
Define symbols for various new REL block types.
1526 AHM 6-Apr-82
Define symbols for type 1010 code blocks.
1564 AHM 21-Jun-82
Remove definition of RLIBREQ made during edit 1525 since it is
no longer needed.
1674 CDM 11-Nov-82
Fix argchecking further so that constant and expression
arguments get flagged as no-update, and character function
return values are implicit (not checked).
***** Begin Version 10 *****
2310 CDM 20-Feb-84
Output type 1131 rel block for PSECT redirection of segments
into psects. The command scanner sets the names for the psects
and the code generator dumps the rel block.
2323 AHM 14-Mar-84
Define R30CODE rel block type for type 1030 30 bit relocation
rel blocks. Also define RLNGCNTBLK to designate the lowest
REL block type which uses a long count.
2423 AHM 18-Jul-84
Support for DATA statements with address offsets greater than
256K for extended addressing. Define RULTIMATEDATA for type
1160 Ultimate Sparse Data rel blocks. Define a flurry of
constituent bits and bytes prefixed with RULT along with it.
2432 AHM 23-Jul-84
Create an alias named RULTFLAGS for the concatenation of the
1160 flag bits RULTRPTFLAG, RULTFILLFLAG and RULTBYTEFLAG, and
clear it near the top of FLUSHDATA. Cures bad REL files
caused by assuming that the garbage left on the top of the
stack was zero.
2434 CDM 23-Jul-84
Enhance argument checking to differentiate between character
expressions /EXTEND and /NOEXTEND. We do not want to pass a one
word LOCAL byte pointer where a GLOBAL is wanted. This
condition could reference data in the wrong section.
2446 MEM 31-Jul-84
Add LONGPSECTHEAD = 1050 and define psect attributes.
2453 AHM 22-Aug-84
Narrow RULTSYMLEN from 9 to 8 bits, to reflect LINK's design.
The left over bit is reserved to DEC, must be zero. Rename
RULTFLAGS to be the entire 1160 flag word.
2517 CDM 1-Feb-85
Enhancements to argument checking, upgrading for statement
functions to be up with external routines, and a few bug fixes in
statement functions. Added checks for structure in arguments;
singleton (scalar), array, routine. Added character length
checking in statement functions. Add values for structure fields
in argument checking.
***** End V10 Development *****
***** End Revision History *****
***** Begin Version 11 *****
4530 MEM 17-Feb-86
Add support for long symbols: define RNAMCNT, RPSECT, RLONGENTRY,
RLONGTITLE, RLONGPOLISH and RLONGCOMMON.
ENDV11
)%
%(***DEFINE STRUCTURES FOR A REL FILE BUFFER AND FOR REFERENCING
A REL FILE BUFFER VIA A POINTER TO IT**)%
STRUCTURE RELBUFF[IX,WD,POS,SIZE]= !FOR A REL-FILE BUFFER
(.RELBUFF+(.IX+1)+.WD)<.POS,.SIZE>;
STRUCTURE PRELBUFF[IX,WD,POS,SIZE]= !FOR A PTR TO A REL-FILE BUFFER
(@.PRELBUFF+(.IX+1)+.WD)<.POS,.SIZE>;
MACRO
RDATCNT=0,-1,RIGHT$, !COUNT OF DATA WDS IN RH OF 1ST WD
RTYPE=0,-1,LEFT$, !BLOCK TYPE IN LH OF 1ST WD
RRELOCWD=0,0,WHOLE$, !RELOCATION BITS IN 2ND WD
RLDATWD=0,WHOLE$, !DATA WORDS START WITH WD 3
%4530% RNAMCNT=0,RIGHT$, !Length of name (1003,1074)
%4530% RPSECT=0,LEFT$; !Psect index (1074)
BIND RBLKSIZ=20; !NUMBER OF WDS IN A REL FILE BLOCK
!
!DEFINE THE LOADER BLOCK TYPES AND DATA INFORMATION
!
BIND RCODE = 1, !CODE AND DATA BLOCK
RSYMBOL = 2, !SYMBOL BLOCK
RGLOBDEF = 4^30, !GLOBAL DEF IN RSYMBOL
RGLOBDDTSUP=#44^30, !GLOBAL DEF WITH DDT USE SUPPRESSED
RLOCDEF = #10^30, !LOCAL DEF IN RSYMBOL
RLOCDDTSUP=#50^30, !LOCAL DEF WITH DDT USE SUPPRESSED
RLOCREQ = #10^30, !LOCAL REQUEST IN RSYMBOL
RLOCFIX = #50^30, !LOCAL FIXUP FOR COMMON BLOCK VARIABLE
RGLOBREQ = #60^30, !GLOBAL REQUEST
RGLOB0 = 0, !CHAINED GLOBAL REQUEST
RGLOB4 = #400000, !ADDITIVE GLOBAL IN RSYMBOL
RHISEG = 3, !HISEG BLOCK
RENTRY = 4, !ENTRY BLOCK
REND = 5, !END BLOCK
RNAME = 6, !NAME BLOCK
RSTART = 7, !START ADDRESS BLOCK
RLOCAL = #10, !LOCAL BLOCK
RPOLISH = #11, !POLISH FIXUP BLOCK
%1525% RCOMMON = #20, ! Common block size
%1245% RDATBLK = #21, ! Sparse data block
%1525% RPSECTORG = #22, ! PSECT origin block (sets default psect index)
%1525% RPSECTEND = #23, ! PSECT END block
%2323% RLNGCNTBLK = #1000, ! REL blocks 1000 on up have long counts
%4530% RLONGENTRY = #1002,
%4530% RLONGTITLE = #1003,
%1242% RCHDATA = #1004, ! Character data block
%1526% RRIGHTCODE = #1010, ! Right relocation by psects
%2323% R30CODE = #1030, ! 30 bit relocation by psects
%1511% RWRITELINK = #1045, ! For SAVE statement processing
%2446% RLONGPSECTHEAD = #1050, ! PSECT header block (/EXTEND only)
%1525% RPSSINGLE = #100000000, ! PSECT fits in a single section
%1525% RPSNONZERO = #40000000, ! PSECT should be loaded into
%1525% ! a non-zero section
%1525% RPSCONCAT = #10000000, ! Data in this PSECT should be appended
%1525% ! to what was loaded before
%1525% RPSRONLY = #2000000, ! Write protected page
%1525% RPSWRITE = #1000000, ! Readable page
%1512% RLONGSYMBOL = #1070, ! Long symbol names
%1512% RLSSUPPRESS = #10, ! Suppress symbol typeout to DDT
%1512% RLSLOCAL = #100, ! Local symbol definition
%1512% RLSGLOBAL = #200, ! Global symbol definition or fixup
%1512% RLSCHAIN = #40, ! Chained fixup request
%1512% RLSADDITIVE = #50, ! Additive fixup request
%1512% RLSSYMBOL = #60, ! Symbol fixup request
%1512% RLSRHFIX = 3, ! Right hand fixup
%1512% RLS30FIX = 6, ! 30 bit fixup
%1512% RLSRABS = 0, ! Don't do any relocation
%1512% RLSRRH = 1, ! Relocate the right half
%1512% RLSR30 = 4, ! Relocate the low order 30 bits
%1512% SYMBOLMAX = 4 * 4, ! Maximum number of data words of 1070
%1512% ! blocks to buffer up at one time
%4530% RLONGPOLISH = #1072, ! Long polish fixup block
%4530% RLONGCOMMON = #1074, ! Long common block names
%1521% RARGDESC = #1120, ! Octal value for Argument Descriptor Blocks.
%1521% RCOERCION = #1130, ! Octal value for Coercion Blocks.
%2310% RREDIRECT = #1131, ! Redirection blocks.
%2423% RULTIMATEDATA = #1160; ! Ultimate sparse data
MACRO ! Define fields for 1160 block
%2453% RULTFLAGS = 0,0,WHOLE $, ! Alias for clearing the flag word
%2423% RULTRPTFLAG = 0,0,35,1 $, ! Repeat count present
%2423% RULTFILLFLAG = 0,0,34,1 $, ! Fill count and byte present
%2423% RULTBYTEFLAG = 0,0,33,1 $, ! Byte count present
%2423% RULTPOS = 0,0,27,6 $, ! Position of first byte in word
![2453] [0,0,26,1] is reserved to DEC, must be zero
%2453% RULTSYMLEN = 0,0,18,8 $, ! Number of words in symbol request
%2423% RULTPSECT = 0,0,RIGHT $, ! Psect index for relocating
! All the rest of the fields are at variable offsets from the
! start of the block. These macros expect the word offset
! from the start of the REL block (the current long count) as
! an index to access the right word.
%4530% RULTSYMNAM(LC) = (LC),-1,WHOLE $, ! Word of symbol name
%2423% RULTORGADDR(LC) = (LC),-1,0,30 $, ! Origin address
%2423% RULTSIZE(LC) = (LC),-1,30,6 $, ! Byte size
%2423% RULTREPEATCOUNT(LC) = (LC),-1,WHOLE $, ! Repeat count word
%2423% RULTFILLCOUNT(LC) = (LC),-1,WHOLE $, ! Fill count word
%2423% RULTFILLBYTE(LC) = (LC),-1,WHOLE $, ! Fill byte word
%2423% RULTBYTECOUNT(LC) = (LC),-1,WHOLE $; ! Data byte count
!DEFINE VALUES FOR RELOCATION BITS
BIND
RELN = 0, !NO RELOCATION BITS
RELRI = 1, !RELOCATE RIGHT
RELL = 2, !RELOCATE LEFT
RELB = 3, !RELOCATE BOTH HALVES
![1512] Define values for external psect indices
PXABS=0, ! Absolute PSECT (no relocation)
PXLOW=1, ! Low segment
PXHIGH=2, ! High segment
PXCODE=1, ! Code, arg blocks
PXDATA=2, ! Scalars, small arrays
PXLARGE=3, ! Large arrays
![2446] Psect attributes
PACODE=RPSSINGLE OR RPSNONZERO OR RPSCONCAT OR RPSRONLY,
PADATA=RPSSINGLE OR RPSNONZERO OR RPSCONCAT OR RPSWRITE,
PALARGE=RPSNONZERO OR RPSCONCAT OR RPSWRITE,
![1512] Define function codes for ZSYMBOL
LOCDEF = 0, ! Local symbol definition
LOCSUPDEF = 1, ! Local symbol definition, but
! with DDT typeout suppression
GLBDEF = 2, ! Global symbol definition
GLBSUPDEF = 3, ! Global symbol definition, but
! with DDT typeout suppression
GLBSYMFIX = 4, ! Add the value of a global symbol to a
! symbol's defined value
GLB18CHNFIX = 5, ! Replace the RH of a location with the
! value of a global symbol
GLB18ADDFIX = 6, ! Add the value of a global symbol to
! the RH of a location
GLB30CHNFIX = 7, ! Replace the low order 30 bits of a location
! with the value of a global symbol
GLB30ADDFIX = 8; ! Add the value of a global symbol to
! the low order 30 bits of a location
!DEFINE MACRO TO OUTPUT A CR-LF ON THE LISTING
MACRO CRLF=(CHR_#15; LSTOUT(); CHR_#12; LSTOUT();)$;
%1466% ! Binds for use in the EVALU table for converting internal compiler
%1466% ! type values to LINK values.
BIND
%1466% TYPLOGICAL=1,
%1466% TYPINTEGER=2,
%1466% TYPREAL=4,
%1466% TYPOCTAL=6,
%1466% TYPLABEL=7,
%1466% TYPDOUBLPREC=#10,
%1466% TYPDBLOCTAL=#12,
%1466% TYPGFLDBLPREC=#13,
%1466% TYPCOMPLEX=#14,
%1466% TYPCHARACTER=#15,
%1466% TYPHOLLERITH=#17,
%2434% TYPEXTCHARACTER=#21; ! Character compiled /EXTEND
%1521% STRUCTURE RELBUFFER[WORD,POS,SIZE]= ! Structure for buffers
%1521% (.RELBUFFER+.WORD)<.POS,.SIZE>;
MACRO ! [1521] Macros for accessing argument checking descriptor blocks
! using structure RELBUFFER.
%1521% ! Categories for rel block
TPRELTYPE=0,LEFT$, ! Type of rel block.
TPRELSIZE=0,RIGHT$, ! Size of rel block.
TPNBITRELOC=1,FULL$, ! N-Bit relocation information.
TPARBLADD=2,FULL$, ! Argument block address.
TPASOCCALL=3,FULL$, ! Associated call address.
TPLDADD=4,FULL$, ! Loading address.
TPNAMSIZE=5,FULL$, ! Size of subprog name in bytes.
TPNAME0=6,FULL$, ! 1st word of ASCIZ name.
TPNAME1=7,FULL$, ! 2nd word of ASCIZ name.
TPARGCOUNT=RIGHT$, ! Where to put argument count
%1521% ! Flag bits for rel block
TPCNT=35,1$, ! number of arguments action
TPWHO=34,1$, ! Main vs subprogram
TPLOD=33,1$, ! Load descriptor block at loading addr
TPVAL=32,1$, ! Function, returns value
%1674% TPSFERR=31,1$, ! Subroutine/Function agreement ERRor action
%1521% ! Fields in argument descriptors
TPCNV=35,1$, ! Reserved
TPNUP=34,1$, ! No update (literal, constant or expression)
TPPAS=31,3$, ! Passing mechanism
TPCTC=30,1$, ! Compile time constant
TPTYP=24,6$, ! Argument type code (EVALU)
TPSTR=18,6$, ! Structure type code
%1674% TPIMPL=17,1$, ! Implicit argument flag
%1674% TPSND=0,9$, ! Number of secondary descriptors
%1521% ! Fields in secondary descriptors
TPMCH=33,3$, ! Action for lengths in char 2nd-ary descriptors
TPSIZ=0,33$; ! Size of character variable in words
BIND
! Misc.
TPFLEA=5, ! "Formal =< actual" for secondary descriptor lengths
TPMIN=6, ! Magic number for min num of words needed for arg ch.
! Values for TPSTR field
%2517% TPNOTSPECIFIED = 0, ! No value given (previous version of Fortran)
%2517% TPSINGLETON = 1, ! Single entity, expression, array element
%2517% TPARRAY = 2, ! Bare array name
%2517% TPROUTINE = 5; ! External/intrinsic routine name.
! Coercion block fields
MACRO
CBTYPE=0,LEFT$, ! Type of coercion block
CBCOUNT=0,RIGHT$, ! Count of number of words in coercion blocks
CBNBIT=1,FULL$; ! N-bit byte Relocation Information
! What to complain about
BIND
%1674% CBNOUPDATE = 0,
CBPAS=1, ! TPPAS, Passing mechanism of variable
CBTYP=2, ! TPTYP, type of variable being passed
%1566% CBCONST=3, ! For constants
%1674% CBNUMARG = 4, ! Number of arguments
%1674% CBRETVAL = 5, ! Existance of return value
%1674% CBARGLEN = 6, ! Argument length mismatch
%2517% CBSTRUCTURE = 7,! Structure length mismatch
! Action codes for coercions
CBWARNING=1, ! LINK should give a warning for this action.
CBFIXUP=3, ! Perform Fortran fixup for Char to numeric passed.
%1566% CBNOACTION=4, ! Don't do anything
! Values for formals, actuals
PASSADDR=0, ! Pass by address
PASSDESCR=1; ! Pass by descriptor