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uetp/lib/f7t1.for
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C F7T1
C Test program for DEC-10/20 Fortran Version 7
C This program performs minimal confidence test on DIX
C
C COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1982, 1983
C
C This software is furnished under a license and may be used and
C copied only in accordance with the terms of such license and with
C the inclusion of the above copyright notice. This software or any
C other copies thereof may not be provided or otherwise made available
C to any other person. No title to and ownership of the software is
C hereby transferred.
C
C The information in this software is subject to change without notice
C and should not be construed as a commitment by Digital Equipment
C Corporation.
C
C Digital assumes no responsibility for the use or reliability of its
C software on equipment which is not supplied by Digital.
C
C Facility: DIX-TEST
C
C Edit History:
C
C Edit (%O'3', '16-Oct-82', 'David Dyer-Bennet')
C %( Add fortran interface tests: FOR36 V6 (F6T1.FOR), FOR36 V7 (F7T1.FOR),
C FOR32 V3 (F32T1.VAX-FOR). F7T1 has the detailed justification
C of the source and expected destination values used. )%
C
C Edit (%O'7', '1-Nov-82', 'David Dyer-Bennet')
C %( Change fortran DEC-20 test programs to look for interface files
C in SYS:.
C Files: F6T1.FOR, F7T1.FOR)%
C
C Edit (%O'14', '14-Jan-83', 'Sandy Clemens')
C %( Many edits to the Installation Verification system (ICS) files.
C Add SYS: to all the 10/20 programs in the COPY or INCLUDE
C statement for the interface files. Add SYS$LIBRARY to the VAX
C programs in the COPY or INCLUDE statement for the interface
C files. Add check for INFO or SUCCESS status return in all ICS
C programs. Add Lib$Match_Cond to VMS programs for status
C checking. Change some of the symbolic variable names for
C clarification. Change use of numeric parameter values to
C symbolic variable names. Get rid of use of "IMPLICIT INTEGER"
C in FORTRAN test programs. Add copyright notice to everything.
C Make the TOPS-10 test programs EXACTLY the same as the TOPS-20
C programs, in order to use the same ones on both systems. Files:
C F6T1.10-FOR (DELETED), F7T1.10-FOR (DELETED), C32T1.VAX-COB,
C C36T1.CBL, F32T1.VAX-FOR, F6T1.FOR, F7T1.FOR, DIXTHST.TXT )%
C
C Edit (%O'15', '19-Jan-83', 'Sandy Clemens')
C %( Change erroneous program message "Tests through 10 completed
C successfully" to correct message "Tests though 9 completed
C successfully." Files: F6T1.FOR, F7T1.FOR )%
C
C Edit (%O'20', '24-Jan-83', 'Sandy Clemens')
C %( Add copyright and liability waiver to whatever needs it.
C FILE: C32T1.VAX-COB, C36T1.CBL, CREDIX.CTL, CREDIX.VAX-COM,
C DIXDMP.CBL, DIXDMP.VAX-COB, DIXMNT.CBL, DIXTST.CBL,
C DIXTST.VAX-COB, F32T1.VAX-FOR, F6T1.FOR, F7T1.FOR, PART1.CBL,
C PART3.VAX-COB, RUNDIX.CTL, RUNDIX.VAX-COM, SUB6X1.FOR,
C SUB7X1.FOR )%
C Here is one of the most complete and best documented conversion examples
C you will ever see. Here are a DEC-20 record, shown as seen in DEC-20
C memory and as seen in VAX memory, in octal and decimal (and binary);
C And a VAX record containing the proper converted equivalent values,
C represented in as many forms and as much detail.
C
C DEC-20 FORM OF TEST RECORD:
C
C Descr
C Nam Fld Type Lng Scal Contents Comments
C ----- --- ---- --- ---- -------- --------
C STR20 1 ASCII-7 7 "Abc(12)"
C 2 ASCII-7 3 Nulls Filler
C SBF20 3 SBF36 2 21474836.47
C FLT20 4 FLOAT-36 3.1415925E+00
C
C DEC: { 27015512064 }{ -33408571294 }
C OCT: {3 1 1 2 2 0 0 0 0 0 0 0}{4 0 7 0 5 4 3 2 4 1 4 2}
C 20: { 20 WORD N+1 }{ 20 WORD N }
C INT: { 2 }{ ) }{ FILL }X{ A }{ b }{ c }{ ( }{ 1 }X
C BIT: 011001001010010000000000000000000000100000111000101100011010100001100010
C VAX: <= N+8 }{ VAX WORD N+4 }{ VAX WORD N }
C OCT: 5 4 4}{2 4 4 0 0 0 0 0 0 1 0}{0 7 0 5 4 3 2 4 1 4 2}
C DEC: <= }{ -1543503864 }{ 951167074 }
C
C -----------------------------------------------------------------------------
C
C DEC: { 17553718994 }{ 2147483647 }
C OCT: {2 0 2 6 2 2 0 7 7 3 2 2}{0 1 7 7 7 7 7 7 7 7 7 7}
C 20: { 20 WORD N+3 }{ 20 WORD N+2 }
C INT: { FLOAT-36: 3.1415926E+00 }{ SBF36: 2147483647 }
C BIT: 010000010110010010000111111011010010000001111111111111111111111111111111
C VAX: <= N+16 }{ VAX WORD N+12 }{ VAX WORD N+8 =>
C OCT: <=4 0 5 4 4}{2 0 7 7 3 2 2 0 1 7 7}{3 7 7 7 7 7 7 7=>
C DEC: <= 16740 }{ -2014502785 }{ -156 =>
C
C -----------------------------------------------------------------------------
C
C BIT: 0000000000000000
C VAX: WORD N+16 =>
C OCT: {0 0 0 0 0 0
C DEC: { =>
C
C =============================================================================
C
C VAX FORM OF TEST RECORD:
C
C Descr
C Nam Fld Type Lng Scal Contents Comments
C ----- --- ---- --- ---- -------- --------
C STRVAX 1 ASCII-8 7 "Abc(12)"
C 2 ASCII-8 1 Nulls Filler
C SBFVAX 3 SBF32 2 21474836.47
C FLTVAX 4 D-FLOAT 3.141592562198639E0
C
C Note: The value given here for the D_Float field is the correct
C conversion from SBF36 3.1415926E0. Since D_Float is a form of greater
C precision, there is no difficulty in conversion: The same string of
C mantissa bits, properly represented for the other system, is used.
C
C DEC: { 2699825 }{ 677601857 }
C OCT: {0 0 0 1 2 2 3 1 0 6 1}{0 5 0 3 0 6 6 1 1 0 1}
C VAX: { VAX WORD N+4 }{ VAX WORD N }
C INT: { }{ ) }{ 2 }{ 1 }{ ( }{ c }{ b }{ A }
C BIT: 0000000000101001001100100011000100101000011000110110001001000001
C 20: <= 20 WORD N+1 }{ 20 WORD N }
C OCT: 0 0 0 5 1 1 4 4 3}{0 4 5 0 3 0 6 6 1 1 0 1}
C DEC: <= -268266717 }{ 4972569153 }
C
C DEC: { 2147483647 }
C OCT: {1 7 7 7 7 7 7 7 7 7 7}
C VAX: { VAX WORD N+8 }
C INT: { 21474836.47 }
C BIT: 01111111111111111111111111111111
C 20: <= 20 WORD N+2 }{ N+1 =>
C OCT: 3 7 7 7 7 7 7 7}{7 7 6
C DEC: <= 5528092671 }{ =>
C
C -----------------------------------------------------------------------------
C
C DEC: { 16384 }{ 265961801 }
C OCT: {0 0 0 0 0 0 4 0 0 0 0}{0 1 7 6 6 4 4 0 5 1 1}
C VAX: { VAX WORD N+16 }{ VAX WORD N+12 }
C INT: { 3.1415926E00 }
C BIT: 0000000000000000010000000000000000001111110110100100000101001001
C 20: <= 20 WORD N+4}{ 20 WORD N+3 }{ N+2 =>
C OCT: 0 0 0 0 0}{2 0 0 0 0 0 1 7 6 6 4 4}{0 5 1 1
C DEC: <= 0 }{ 17179934116 }{ =>
C
C -----------------------------------------------------------------------------
C
C DEC:
C OCT:
C VAX:
C INT: NOT PRESENT
C BIT: 00000000000000000000
C 20: { N+4 =>
C OCT: {0 0 0 0 0 0 0
C DEC: { =>
C [%O'7'] Add SYS: to file specs.
C Include the DIL interface files
INCLUDE 'SYS:DILV7'
INCLUDE 'SYS:DIXV7'
C Foreign field descriptors
INTEGER STR20 (3), SBF20 (3), FLT20 (3)
INTEGER STRVAX (3), SBFVAX (3), FLTVAX (3)
C BUFFERS
INTEGER SRCDAT (4)
INTEGER DSTDAT (5)
C VARIABLES
INTEGER TEST, STAT
C Initialize foreign field descriptors
TEST = 1
STAT = XDESCR (STR20, SRCDAT, SYS36, 7, 0, 0, ASCII7, 7, 0)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 2
STAT = XDESCR (SBF20, SRCDAT, SYS36, 36, 2, 0, SBF36, 0, 2)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 3
STAT = XDESCR (FLT20, SRCDAT, SYS36, 36, 3, 0, FLOT36, 0, 0)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 4
STAT = XDESCR (STRVAX, DSTDAT, SYSVAX, 8, 0, 0, ASCII8, 7, 0)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 5
STAT = XDESCR (SBFVAX, DSTDAT, SYSVAX, 8, 8, 0, SBF32, 0, 2)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 6
STAT = XDESCR (FLTVAX, DSTDAT, SYSVAX, 8, 12, 0, DFLOAT, 0, 0)
IF (STAT.NE.NORMAL) GOTO 777
C INITIALIZE SRC BUFFER
C Data is as described at top.
SRCDAT (1) = -33408571294
SRCDAT (2) = 27015512064
SRCDAT (3) = 2147483647
SRCDAT (4) = 17553718994
C INITIALIZE DESTINATION BUFFER TO ZEROS
DO 10 I = 1, 5
10 DSTDAT (I) = 0
C DO CONVERSIONS
WRITE (5, 1001)
1001 FORMAT (' Doing conversions')
C
TEST = 7
STAT = XCVST (STR20, STRVAX)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 8
STAT = XCVFB (SBF20, SBFVAX)
IF (STAT.NE.NORMAL) GOTO 777
TEST = 9
STAT = XCGEN (FLT20, FLTVAX)
IF (STAT.NE.NORMAL) GOTO 777
WRITE (5, 781)
781 FORMAT (' Tests through 9 completed successfully')
GO TO 100
C PRINT ERROR INFORMATION
777 WRITE (5, 778) TEST, STAT
778 FORMAT (' ? Failure in test ', I4, ' Status = ', I10)
STOP
C CHECK RESULTS
C What we should have created is the VAX form of the record as
C described in the comments at the head of this program.
100 DO 20 I = 1, 5
20 WRITE (5, 779) I, DSTDAT (I)
779 FORMAT (' DSTDAT sub ', I3, ' = ', I12)
TEST = 10
IF (DSTDAT (1) .NEQ. 4972569153) GO TO 777
TEST = 11
IF (DSTDAT (2) .NEQ. -268266717) GO TO 777
TEST = 12
IF (DSTDAT (3) .NEQ. 5528092671) GO TO 777
TEST = 13
C Since the initial precision is only float-36, the full D_float
C precision will not be produced in the answer.
C D_Float is exactly like F_Float for the first word. The second
C word consists entirely of lower-order mantissa bits. In our
C example, however, mantissa bits cannot be manufactured from nowhere.
C Float-36 has 26 mantissa bits. F_Float has 24 (first one hidden).
C Therefore, 2 bits, which happen to be 10, will overflow into the
C second word of the D_Float. The remainder of that word
C (vax word N+16) will be 0. Lay this out on the chart, and you will
C see that 20 word n+3 will thus be 200000,,176644, or 17179934116.
IF (DSTDAT (4) .NEQ. 17179934116) GO TO 777
TEST = 14
IF (DSTDAT (5) .NEQ. 0) GO TO 777
WRITE (5, 780)
780 FORMAT (' Tests through 14 successfully completed')
C TRY A COUPLE OF ERROR CASES
C GET AN UNKNOWN SYSTEM OF ORIGIN ERROR AND VERIFY USE OF UNKSYS
TEST = 15
STAT = XDESCR (STR20, SRCDAT, 3, 7, 0, 0, ASCII7, 7, 0)
IF (STAT .NEQ. UNKSYS) GO TO 777
C GET AN INVALID DATA TYPE ERROR AND VERIFY USE OF DATTYP
TEST = 16
STAT = XDESCR (STR20, SRCDAT, SYS36, 7, 0, 0, -75, 7, 0)
IF (STAT .NEQ. DATTYP) GO TO 777
WRITE (5, 782)
782 FORMAT (' Tests through 16 successfully completed')
WRITE (5, 783)
783 FORMAT (' F7T1 successfully completed')
END