PortaCalc XL version for PDP11 This version of PortaCalc is a variant of the standard PortaCalc package for memory-mapping PDP11's. It differs from the standard VAX or PDP11 version in that its' data is kept in a virtual array, and hence the package can handle larger spreadsheets on a PDP11 with no special functions beyond memory mapping support. The current version supports a 60 by 64 sheet, but thesize can be modified by changing the SVKLUGPRM.FTN file's PARAMETER statements which define physical sheet sizes. The version supplied is something of a quick mod to the standard version and as such has the following restrictions: 1. Only VT100 support is provided (though other terminals can be added relatively easily using the standard version's routines) Actually, there is a modified copy of UVT52.FTN which may be used in place of UVT100.FTN and which will give VT52 support. It may work OK but is less well tested than the VT52 support on the normal PortaCalc because it cannot access the FVLD array, hence may insert a few extraneous > characters, though it probably won't. 2. Matrix algebra and solution finding for general equation systems is not included 3. No use is made of supervisor mode, I/D space, or other bells and whistles available through RSX11M+ on the larger PDP11's. This version should run on any RSX 11M or 11M+ (or 11D/IAS system) with a very reasonable spread sheet size. To get this product running on the PC 350, the standard method is to put a NUMERIC directory (e.g. [200,200] as 200200.dir) into your system and place the program there and always run it from that numeric account. The command files (ak*.cmd and KY*.cmd) should be placed there also and the DK: selection option not chosen. When you build this package, just use the SOMAKE.CMD procedure. It assumes the DEC F77 compiler, but uses only Fortran 66, so older versions like F4P should work with only tiny mods to OPEN statements.