Flawed prime factorization program and unexpected 15C simulator behaviour

[rprosperi]

(11-19-2015 11:42 PM)BarryMead Wrote:  If you unzip this attached zip file into your HP-15C source directory and patch with the following patch commands:
patch -p0 <fract.patch
patch -p0 <int.patch

The source for the HP-15C calculator will be bug free. You can either run this source with TCL/TK's wish program like this:
wish HP-15C.tcl

Or you can compile the source to an executable with the freewrap program available from http://freewrap.sourceforge.net/ like this:
freewrap HP-15C.tcl -o HP-15C

Barry - thanks for the patch, and patch to the patch, and the explanation of the nice features in this great 15C simulator. Sounds like it makes it truly easy to create well-documented programs for the emulator, and the DM-15/15L

I guess the above presumes one has some sort of TCL development system installed? I looked at the source files and don't see the needed patch.exe program to do the above, so that tool must be part of some IDE or other toolset?