RDOS prompt is newline then "R". I had to re-create the FORTRAN IV distribution and libraries from random tape dumps. Of course the library file editor pages were missing from the manual I printed out! Had to build the fortran library, aargh. CLG is "compile load go" an all-in-one utility. Amusingly, RDOS isn't umm fully Y2K clean! Accepts year as 2005, but prints it variously as 105 or :5. I guess I'll write "hello world" in macro then assume I'm in business, and go work out the foreground terminal, line printer, etc... Thanks again Bruce for all the help!!!!! tomj R CLG HW HW.LS/L PROGRAM IS RELOCATABLE .TITL .MAIN HELLO, WORLD STOP R LIST HW.- HW.FR 82 D HW.SV 8192 SD HW.LS 9786 D HW.RB 282 D R HW HELLO, WORLD STOP R TYPE HW.FR C THIS PROGRAM DOES NOTHING BUT PROVE THAT IT EXISTS. TYPE "HELLO, WORLD" END R R TYPE HW.LS ; DGC FORTRAN IV REV 05.50NH ; C THIS PROGRAM DOES NOTHING BUT PROVE THAT IT EXISTS. ; ; TYPE "HELLO, WORLD" ; ; END 0001 .MAIN ; DGC FORTRAN IV REV 05.50NH ; C THIS PROGRAM DOES NOTHING BUT PROVE THAT IT EXISTS. ; ; TYPE "HELLO, WORLD" .NREL .TITL .MAIN .ENT .MAIN .NREL 000001 .TXTM 1 .EXTU .EXTN .I .F1: 00000'000000 .F2: 0 000000 .CSIZ 0 00001'000000 FS. .MAIN: 00002'002401 JMP @.+1 00003'000004' L1. L1.: 00004'006002$ JSR @.FWRI 00005'000021' .C1 00006'000000 0 00007'000006 6 .TXT "HELLO, WORLD" 00010'044105 00011'046114 00012'047454 00013'020127 00014'047522 00015'046104 00016'000000 ; 00017'000005 5 ; END 00020'006001$ JSR @.FRET 00021'000012 .C1: 000012 000000 FS.=0 000000 SFS.=0 177611 T.=-167 000011 V.=200+T. 177610 TS.=T.+177777 177611 FTS.=T.+0 000010 VS.=V.+177777 000011 FVS.=V.+0 .END 0002 .MAIN FS. 000000 FTS. 177611 FVS. 000011 L1. 000004' SFS. 000000 TS. 177610 T. 177611 VS. 000010 V. 000011 .C1 000021' .F1 000000' .F2 000000' .FRET 000001$X .FWRI 000002$X .I 077777 X .MAIN 000002' HW.SV LOADED BY RLDR REV 07.10 AT 22:08:51 02/27/:5 R LIST HW.FR 82 D ASM.SV @:ASM.SV FIV.SV 20992 SD LFE.SV @:LFE.SV FMT.LB 6292 D RLDR.OL @:RLDR.OL HW.SV 8192 SD SYS.LB @:SYS.LB FORT0.LB 7794 D FORT1.LB 22552 D HW.LS 9786 D SPEED.ER @:SPEED.ER CLG.SV 3584 SD RLDR.SV @:RLDR.SV FSYS.LB 4036 D N.SV DP0:NSPEED.SV FORT2.LB 18242 D COM.CM 8 FORT3.LB 13618 D FORT.SV 3072 SD HW.RB 282 D LIBS. 37 D BREAK.SV 14336 SD FORT.LB 62134 D R