Appendix I (pages 201 to 207) and Appendix III (pages 223 to 227) from the 1975 print of The Invisible Landscape contained three Fortran programs, which appear to be of the Fortran 66 dialect.
The goal of this repository is to get these original Fortran programs updated to work with modern compilers.
Currenly, there is nothing which runs found in this repository.
- The original CDC 6400 code is in the
originals/directory and does not compile with any modern Fortran compiler as-is. - Code foud in the top-level of the repository should compile and eventually run.
- The programs were originally written for a CDC 6400 mainframe,
- All files have a header which states:
RUN FORTRAN COMPILER VERSION 2.3 B.3
- All files have a header which states:
- All copies of the 1975 text print were flawed, the source code is nearly illegible.
- The
WAVECsubroutine was not included in the text, and does not appear to be a standard definition available anywhere.
The tests/ directory contains two Fortran IV programs for checking the development environment, they are from wikibooks.org.
After installing f2c, they may be compiled like so:
f2c -ext -h -72 -onetrip test1.f && cc -o test1 test1.c -lf2c -lm
or
After installing gfortran, they may be compiled like so:
gfortran -ffixed-form -fmax-identifier-length=7 ./test1.f
The Fortran 66 standard was inspired by Fortran IV. However, Fortran experts in #fortran on Libera.chat have noted that "this is very old Fortran", and it is likely more specific to what was proper for the CDC 6400 mainframe used by McKenna and his team during their era.
In addition to studying Fortran 66, one may need to become familiar with the very-specific dialect of Fortran used on the CDC 6400 used by the author.
Note that in the above linked standard, section 3.2, talks about the first column as Column 1, but most modern text editors call this Column 0.
The standard dictates that statements must begin on column 7, which will reflect as column 6 in most modern text editors.
Furthermore, line continuation characters (any character other than the digit 0 or the character blank) are dictated to appear in column 6, which will reflect as column 5 in most modern text editors.
...and so on.
McKenna's Timewave is the original work of Terence K. McKenna and Dennis J. McKenna, they were assisted by at least Leon Taylor with their Fortran program -- their original work is found in the originals/ directory of this repository.
Their original work was published in Appendix I and III of The Invisible Landscape.
The code was painfully transcribed by ultasun after much squinting, and after that it did not compile -- so the modified versions which do compile will be found in the top level of this repository.
The fortran channel, on libera.chat, user Irvise contributed this patch, and this compilation string for iching.f
gfortran -ffixed-form -ffixed-line-length-none -w -std=legacy