FORTRAN: only Fortran, Cobol, and C (ANSI C) are truly standardized |
Versions: Fortran 66, f77, f90/95, f2000/2003: newer versions are almost perfectly backward compatible |
the compile chain: syntax analysis/parsing --> metacode --> assembly code --> sharable objects --> linked into executable (a.out) |
simple code: "Hello World"; show compiler output, look at assembler |
Interlude: computer memory hierarchy: physical memory |
virtual memory space versus physicsl memory , caching, paging, swapping, show 'top' |
FILE:code.fortran1 simple f77 code sytax, declarations, implicit declarations, compile process |