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autocoder.f90
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program AUTOCODER
use BCD_TO_ASCII_M, ONLY: CodeCodes, Encoding, Encodings, Fill_Encoding, &
& Init_BCD_to_Ascii
use Bootstrap_m, only: BOOTLOADER, CORESIZE
use ERROR_M, only: DO_ERROR, N_ERRORS
use FLAGS, only: TRACES
use INPUT_M, only: INUNIT
use IO_UNITS, only: DIAG, INPUT, LIST, OBJ, TAPE, U_DIAG, U_ERROR,&
& U_INPUT, U_LIST, U_OBJ, U_REL, U_SCRATCH, U_SCR2, U_TAPE
use LITERALS_M, only: DUMP_LIT_TABLE, LONG_LITS
use MACHINE, only: Get_Command_Argument, IO_ERROR
use MACRO_PASS_M, only: ADD_EXT, ADD_PATH, MACRO_PASS, MA_MACRO
use OBJECT_M, only: DO_DIAG, DO_OBJECT, DO_REL, DO_TAPE
use OP_CODES_M, only: INIT_OP_CODES
use PASS_1_M, only: PASS_1
use PASS_2_M, only: PASS_2
use PASS_3_M, only: EXTRA, INTERLEAVE, MAXLINE, &
& NOTIN_1_80, PASS_3
use SYMTAB_M, only: DUMP_SYMTAB
use ZONE_M, only: INIT_ZONED
implicit NONE
character(127) :: ARG ! Command line argument
logical :: Do_List = .false. ! Make a listing (turned on by -l)
logical :: Do_1440 = .false. ! Assemble 1440 I/O op codes
integer :: I, J ! Subscript, loop inductor
integer :: IOSTAT ! I/O status
logical :: KeepScr = .false. ! Keep the scratch file
logical :: NeedPass2 ! Undefined ORG's or EQU's after pass 1
integer :: PGLEN ! Page Length (from -p option)
logical :: Saw_Rel ! Pass 1 saw relocatable stuff
logical :: SYMTAB ! Dump the symbol table
character(len=*), parameter :: &
& Version = &
& '1401 Autocoder (c) Van Snyder <[email protected]> 2017-07-28 version 4.11'
interleave = .false.
inunit = -1
notIn_1_80 = .true.
symtab = .false.
traces = ''
! Initialize BCD_to_ASCII
call init_BCD_to_ASCII
! Fill the default encoding
call fill_encoding ( encodings(encoding) )
i = 0
do
i = i + 1
call get_command_argument ( i, arg )
if ( arg(1:1) /= '-' ) exit
if ( arg(2:3) == 'a ' ) then
notIn_1_80 = .false.
else if ( arg(2:2) == 'b' ) then ! Boot
if (arg(3:) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
bootLoader = adjustl(arg(3:))
if ( bootLoader >= 'a' .and. bootLoader <= 'z' ) &
& bootLoader = achar(iachar(bootLoader) + iachar('A') - iachar('a'))
if ( bootLoader /= 'B' .and. bootLoader /= 'I' .and. bootLoader /= 'N' .and. &
& bootLoader /= 'V' ) then
print *, 'Boot Loader (-b option) must be I or N or B or V; IX used'
bootLoader = 'I'
arg(4:4) = 'X'
end if
if ( bootLoader == 'I' ) then
select case ( arg(4:4) ) ! Core size flag
case ( '0' )
coreSize = 0 ! IBM Boot only, with no clear
case ( '1' )
coreSize = 1400
case ( '2' )
coreSize = 2000
case ( '4' )
coreSize = 4000
case ( '8' )
coreSize = 8000
case ( 'V', 'v' )
coreSize = 12000
case ( 'X', 'x' )
coreSize = 16000
case ( ' ' )
case default
print *, 'Invalid core size flag. ', coreSize, ' used.'
end select
end if
else if ( arg(2:2) == 'd' ) then ! "Diagnostic" object format file
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
do_diag = .true.
diag = arg(3:)
open ( u_diag, file=diag, form='formatted', access='sequential', &
& iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening "diagnostic format" file', iostat, tape )
stop
end if
else if ( arg(2:2) == 'e' ) then ! Encodings
arg(3:) = adjustl(arg(3:))
if (arg(3:) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
if ( arg(3:3) == '?' ) then ! Print encodings and stop
print *, 'Built-in encodings, in BCD order, blank to GM:'
print *, ' No zone + A (0) zone + B (11) zone + AB (12) zone +'
print *, ' 123456789034567 123456789234567 123456789034567 123456789034567'
print *, ' 88888 888888 88888 88888'
do j = 1, size(codeCodes)
print *, codeCodes(j), ': ', encodings(j)
end do
print *, '^ is used for blank on even-parity tapes. It does not have an'
print *, 'input punch encoding, punches as zero, and prints as record mark.'
print *, 'Characters using 5-8, 6-8 or 7-8 do not print on standard chains.'
stop
end if
do j = 1, size(codeCodes)
if ( codeCodes(j) == arg(3:) ) then
encoding = j
exit
end if
end do
if ( arg(3:3) == '*' ) then
if ( arg(4:) == '' ) then
call get_command_argument ( i, arg )
else
arg = arg(4:)
end if
if ( len_trim(arg) /= 63 ) then
print *, 'Invalid encoding: Must be 63 characters in BCD order'
else
call fill_encoding ( arg(1:63) )
end if
else
if ( j > size(codeCodes) ) &
& print *, 'Invalid encoding, ', codeCodes(encoding), ' used.'
call fill_encoding ( encodings(encoding) )
end if
else if ( arg(2:2) == 'I' ) then ! Macro search path
if ( arg(3:3) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
call add_path ( trim(arg(3:)) )
else if ( arg(2:3) == 'i ' ) then ! Interleave
interleave = .true.
else if ( arg(2:2) == 'l' ) then ! Listing file
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
do_list = .true.
list = arg(3:)
open ( u_list, file=list, form='formatted', access='sequential', &
& iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening "listing" file', iostat, list )
stop
end if
else if ( arg(2:3) == 'L ' ) then ! Allow long lits
long_lits = .true.
else if ( arg(2:3) == 'M ' ) then ! MA is a macro
ma_macro = .true.
else if ( arg(2:2) == 'm' ) then ! Macro extension
if ( arg(3:3) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
call add_ext ( trim(arg(3:)) )
else if ( arg(2:2) == 'o' ) then ! Object file
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
do_object = .true.
obj = arg(3:)
open ( u_obj, file=obj, form='formatted', access='sequential', &
& iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening "object deck" file', iostat, obj )
stop
end if
else if ( arg(2:2) == 'p' ) then ! Page length
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
read ( arg(3:), *, iostat=iostat ) pgLen
if ( iostat == 0 ) then
maxLine = pglen
else
call io_error ( 'While converting -p optipon', iostat )
stop
end if
else if ( arg(2:2) == 'r' ) then ! Relocatable file
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
do_rel = .true.
obj = arg(3:)
open ( u_rel, file=obj, form='formatted', access='sequential', &
& iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening relocatable file', iostat, obj )
stop
end if
else if ( arg(2:3) == 's' ) then ! Dump symbol table
symtab = .true.
else if ( arg(2:2) == 't' ) then ! Object Tape
arg(3:) = adjustl(arg(3:))
if ( arg(3:3) == ' ' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
do_tape = .true.
tape = arg(3:)
open ( u_tape, file=tape, form='formatted', access='sequential', &
& iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening "loadable tape" file', iostat, tape )
stop
end if
else if ( arg(2:2) == 'T' ) then ! Traces
arg(3:) = adjustl(arg(3:))
if ( arg(3:) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
traces = trim(traces) // arg(3:)
else if ( arg(2:3) == 'V ' ) then ! Print version and stop
print '(a)', version
stop
else if ( arg(2:2) == 'X' ) then ! Special switches
arg(3:) = adjustl(arg(3:))
if ( arg(3:) == '' ) then
i = i + 1
call get_command_argument ( i, arg(3:) )
end if
read ( arg(3:), *, iostat=iostat ) extra
if ( iostat /= 0 ) then
call io_error ( 'While processing X option', iostat, input )
stop
end if
else if ( arg(2:) == '-keepscratch' ) then
keepScr = .true.
else if ( arg(2:) == '1440' ) then
do_1440 = .true.
else if ( arg(2:) == '' ) then
exit
else
call get_command_argument ( 0, arg )
print 1, 'Usage: ', trim(arg), ' [options] [input-file]'
print 1, ' Options:'
print 1, ' -h => Print this information and stop'
print 1, ' -a => Code in 1..80 is OK'
print 1, ' -b[ ]X[#] => Select boot loader;'
print 1, ' X = I => IBM, # is the core size selector:'
print 1, ' 0 => Boot, no clear, sequence numbers start at 3,'
print 1, ' 1 => 1400, 2 => 2000, 4 => 4000, 8 => 8000,'
print 2, ' v => 12000, x => 16000. Default ', coreSize
print 1, ' X = N => None,'
print 1, ' X = B => Van''s favorite 1-card boot/no clear,'
print 1, ' X = V => Van''s favorite 2-card boot/clear,'
print 1, ' -d[ ]file => Diagnostic format "deck" file'
print 1, ' -e[ ]X[ ][explicit] => Specify encoding, default ', codeCodes(encoding)
print 1, ' X = A => Paul Pierce''s primary (IBM A) encoding'
print 1, ' X = H => Paul Pierce''s alternative (IBM H) encoding'
print 1, ' X = S => SIMH "traditional" encoding'
print 1, ' X = I => Icelandic encoding'
print 1, ' X = * => Explicit encoding; "explicit" must be 63 characters,'
print 1, ' in BCD order, 1 ... GM. Blank is assumed first.'
print 1, ' X = ? => Print built-in encodings and stop'
print 1, ' Differences: 12 0 11 0 12 0 0 12'
print 1, ' 2 3 3 4 4 4 5 7 7 7'
print 1, ' 8 8 8 8 8 8 8 8 8 8'
print 1, ' ================================================='
print 1, ' A: Pierce Primary & | # $ @ % ) ~ { " }'
print 1, ' H: Pierce Alternate + | = $ '' ( ) ~ { " }'
print 1, ' S: Traditional SIMH & '' # $ @ % ) = ( + "'
print 1, ' I: Icelandic Ð | Æ É Ö Þ Á ~ { " }'
print 1, ' -I[ ]path => A path to search for macros. First is always'
print 1, ' "." Any number of -I options can appear. Paths are'
print 1, ' searched in the order specified. INCLD or CALL'
print 1, ' file names are first three letters, macro file'
print 1, ' names are all five, all caps or all lower case.'
print 1, ' -i => Interleave object deck into listing ', &
& '(needs -o and -l)'
print 1, ' -l[ ]file => Listing file'
print 1, ' -L => Store long literals once (unlike "real" Autocoder)'
print 1, ' -M => MA is a macro in file ma or MA'
print 1, ' -m[ ]ext => Add .ext to the list of extensions to use when'
print 1, ' searching for macros. Macros are searched in lower'
print 1, ' case first (including extensions), then upper case.'
print 1, ' Any number of -m options can be specified. The path'
print 1, ' loop is inside the extension loop'
print 1, ' -o[ ]file => Object "deck" file'
print 2, ' -p[ ]# => Page length in lines, default ', maxLine
print 1, ' -r[ ]file => Relocatable object file'
print 1, ' -s => Dump the symbol and literal tables (debug)'
print 1, ' -t[ ]file => Loadable "tape" file'
print 1, ' -T[ ]letters => Trace, depending on letters'
print 1, ' l => Lexer, p => Parser, M => Macro files'
print 1, ' P => PROCESS_LTORG'
print 1, ' -V => Print version info and stop'
print 1, ' -1440 => Assemble 1440 I/O op codes'
print 1, ' -X[ ]flags => Set "extra" flags (sum them if needed):'
print 1, ' flag 1 => Quick EX/XFR'
print 1, ' flag 2 => Quick END'
print 1, ' flag 4 => Queue SW instructions'
print 1, ' flag 8 => No reloader after EX/XFR'
print 1, 'If [input-file] is not on the command line it is taken from standard input'
print 1, version
stop
1 format (3a)
2 format (a,i0)
end if
end do
if ( arg(1:1) /= '-' .and. arg /= '' ) then
inunit = u_input
input = arg
open ( u_input, file=input, form='formatted', access='sequential', &
& status='old', iostat=iostat )
if ( iostat /= 0 ) then
call io_error ( 'While opening input file', iostat, input )
stop
end if
end if
if ( keepScr ) then
open ( u_scratch, form='formatted', access='sequential', &
& file='scratch' )
open ( u_scr2, form='formatted', access='sequential', &
& file='scr2' )
else
open ( u_scratch, form='formatted', access='sequential', &
& status='scratch' )
open ( u_scr2, form='formatted', access='sequential', &
& status='scratch' )
end if
call init_op_codes ( do_1440 )
call init_zoned
call macro_pass
rewind ( u_scr2 )
do
n_errors = 0
u_error = u_scratch
call pass_1 ( iostat, needPass2, saw_rel )
if ( saw_rel .and. ( do_object .or. do_tape .or. do_diag ) ) then
print *, 'Relocatable output cannot be to -o, -t or -d file'
cycle
end if
if ( iostat > 0 ) exit
u_error = -1
if ( do_list ) u_error = u_list
if ( symtab ) then
call dump_symtab ( heading='After pass 1:' )
call dump_lit_table ( -1 )
end if
if ( iostat > 0 ) exit
if ( needPass2 ) then
call pass_2 ( saw_rel )! Resolve forward EQU, ORG and LTORG references
if ( symtab ) then
call dump_symtab ( heading='After pass 2:' )
call dump_lit_table ( -1 )
end if
end if
call pass_3 ( do_list, saw_rel )
if ( n_errors > 0 ) then
write ( arg(1:5), '(i5)' ) n_errors
call do_error ( arg(1:5) // ' Errors' )
end if
if ( keepScr ) exit
if ( iostat /= 0 ) exit
end do
end program AUTOCODER
! $Log: $
! Version 1: Initial working version
! Version 1.1: Minor bug fix
! Version 1.2: 2004-12-09 Make scratch file scratch instead of named;
! Version 1.3:
! Add Quick EX and Quick END; For Lahey, use getarg from Machine;
! Add SW queueing.
! Version 1.4: Allow ¢ for blank for even parity tape, skip pass 2 if not
! needed, some cannonball polishing.
! Version 1.5: Forgot to enter reason for it
! Version 1.6: Assemble without an END card
! Version 1.7: Bug fix to get rid of extra card after last card
! Version 1.8: Put "1040" in 68-71 of last object card if no END
! Version 1.9: Correct opcode for 7 is WRP
! Finish object card if JOB and no -X options
! Version 2.0: "Diagnostic deck" format with -d option, -bI0 option,
! repair bug DSA not announcing symbol error
! Version 2.1: Add Pierce's encodings and -e option to select encoding
! Version 2.2: Repair a bug in boot loader indexing
! Version 2.3: Print correct current encoding, print encodings if -e?,
! improve usage description, handle blanks after initial letter of option
! even if they're not in a different command-line field
! Version 2.4: Turn tabs in input into blanks.
! Version 2.5: Print GMARK for group marks instead of record marks.
! Version 2.6: Put NUM_LITS in scratch file if XFR.
! Version 2.7: Use BCD_TO_ASCII to get WM and GM for tape output.
! Version 2.8: Remove counts from bootable tape format
! Version 3.0: Implement INCLD, default encoding is Pierce A,
! finish getting group mark from bcd_to_ascii for tape output
! Version 3.1: Fix error in load address on tape if card obj also
! Version 3.2: Implement CALL, materialize INCLD at LTORG (wrong in 3.0).
! Version 3.3: Spiff up the help message
! Version 3.4: Add 1440 I/O op codes
! Version 3.5: Bugs in INCLD, lits, SFX handling, parsing
! Version 3.6: Macros, bugs in DA, DCW
! Version 3.7: Yet another DCW bug (cut off at 48 instead of 50)
! and a macro bug (need to left-adjust and trim macro arg)
! Version 3.8: Correct off-by-one in dcw &@xyz@ (was making yz@ lit).
! List card number on DA lines, DA with negative numeric operand.
! Four-character sequence numbers with 1401 overflow. Adcons with *.
! Version 3.9: Allow one blank in a label; allow zone on last digit
! of number, except in DA; no SFX printed on JOB, SFX or Macro lines.
! Version 3.10: Explicit error message for DC/DCW wider than 52 chars.
! Version 3.11: Make D-modifier optional on SS
! Version 3.12: Don't allow zone-signed number as offset, eg name+number
! Version 3.13: Add macro extensions
! Version 3.14: Make sure Operands variable is completely defined
! Version 3.15: Correct usage instructions for -I option.
! Version 3.16: Check macro name to be MA or at least three characters.
! Version 3.17: Made junk in 73-75 a warning instead of error.
! Version 3.18: Do top-of-form on bootstrap listings after the first program
! Version 3.19: Add SPS support
! Version 3.20: Correct errors and oversights in SPS support
! Version 3.21: Add Icelandic encoding
! Version 3.22: Arbitrary encodings allowed by -e* option, lexer works in BCD
! Version 3.23: Correct wrong BCD name for ) -- B_SQUARE instead of B_RPAREN
! Version 4.0: Relocatable output; substantial other changes
! Version 4.1: Correct position of undef for 5- and 8- character instructions
! Version 4.2: Repair some trivial bugs re more than one assembly
! Version 4.3: Version 4.2 broke something; revert to 4.1, fix bug in ORG *&X00.
! Version 4.4: Repair another bug in ORG *&X00, bug in CC, new tape boot
! Version 4.5: Junk in 73-75 OK for comment, print %, #, index in Platt field
! Version 4.6: Allow offset on END, EX, XFR
! Version 4.7: Tiny improvement in tape bootstrap record, repair bug in CU
! Version 4.8: Don't require A address for RP instruction
! Version 4.9: Correct third line of Differences in encodings help
! Version 4.10: Work around a gfortran 4.4.7 bug in BCD_to_ASCII
! Version 4.11: Output correct CW in card loader column 47 in all encodings