{"id":37,"date":"2005-03-08T20:45:19","date_gmt":"2005-03-09T03:45:19","guid":{"rendered":"http:\/\/www.mcjones.org\/dustydecks\/archives\/2005\/03\/08\/37\/"},"modified":"2024-05-08T10:21:30","modified_gmt":"2024-05-08T17:21:30","slug":"dave-pitts-is-making-progress-running-fortran-ii","status":"publish","type":"post","link":"https:\/\/mcjones.org\/dustydecks\/archives\/2005\/03\/08\/37\/","title":{"rendered":"Dave Pitts is making progress running Fortran II"},"content":{"rendered":"\n

I have been negligent in reporting impressive progress made by Dave Pitts<\/a> emulating IBM 7090 software. As Leif Harcke<\/a> posted to alt.folklore.computers<\/a> and bit.listserv.ibm-main<\/a> on 2 February 2005:<\/p>\n\n\n\n

\n

\nDave has developed his “asm7090” cross-assembler to the point where it can assemble the core of IBSYS from MAP source. The resultant IBSYS image will run the Fortran II(?) compiler on a modified version of Paul Pierce’s “s709” 700\/7000 series emulator. The object code produced by the Fortran compiler does not run under IBSYS, however.<\/p>\n\n\n\n

The cross-assembler and emulator are written in C, and build under Linux. Presumably they are easy to port to other POSIX-compliant systems. Details on the project are available here:<\/p>\n\n\n\n

http:\/\/www.cozx.com\/dpitts\/ibm7090.html<\/a><\/p>\n\n\n\n

If anyone is interested in helping out, Dave could use a hand debugging the emulation and getting IBSYS and other related system tools working.\n<\/p>\n<\/blockquote>\n\n\n\n

Today, Dave told me:<\/p>\n\n\n\n

\n

\nWith the current version of the emulator, 2.0.4, I’ve been able to run the following:<\/p>\n\n\n\n

1. FORTRAN IV – Compile and run both Primes and Laplace programs.
\n2. COBOL – Compile and run the hello world program.
\n3. FORTRN II – Compile the Primes program. The exec doesn’t work, I get a checksum error loading the runtime (bad tape??).
\n4. MAP assembler – I’ve only run the assembler, didn’t try to run output.
\n5. FAP assembler – I’ve only run the assembler, didn’t try to run output.<\/p>\n\n\n\n

My current IBSYS tape has the nucleus assembled with my ASM7090 cross assembler. Also, I re-assembled the COBOL compiler with ASM7090 and put on the tape.<\/p>\n\n\n\n

I know that Leif Harcke has been hacking on the FORTRAN II. I think he’s stuck at the same point as I am. I’ve been trying to get the FORTRAN II parts to assemble with ASM7090 to replace the tape image with a NOPed checksum test.\n<\/p>\n<\/blockquote>\n\n\n\n

Update<\/strong> 2016\/12\/25: Updated URL for Dave Pitts.<\/p>\n\n\n\n

Update<\/strong> 2016\/1\/2\/: Updated URL for Leif Harcke and links to Usenet groups.<\/p>\n\n\n\n

Update<\/strong> 2024\/05\/08: Updated URL for Leif Harcke via Internet Archive Wayback Machine.<\/p>\n","protected":false},"excerpt":{"rendered":"

I have been negligent in reporting impressive progress made by Dave Pitts emulating IBM 7090 software. As Leif Harcke posted to alt.folklore.computers and bit.listserv.ibm-main on 2 February 2005: Dave has developed his “asm7090” cross-assembler to the point where it can assemble the core of IBSYS from MAP source. The resultant IBSYS image will run the … Continue reading “Dave Pitts is making progress running Fortran II”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,7],"tags":[],"class_list":["post-37","post","type-post","status-publish","format-standard","hentry","category-fortran","category-simulators"],"_links":{"self":[{"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/posts\/37","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/comments?post=37"}],"version-history":[{"count":5,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/posts\/37\/revisions"}],"predecessor-version":[{"id":1357,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/posts\/37\/revisions\/1357"}],"wp:attachment":[{"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/media?parent=37"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/categories?post=37"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcjones.org\/dustydecks\/wp-json\/wp\/v2\/tags?post=37"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}