These are copies of the collection of HP users' clubs' Swap Disks,
which originated as CHHU Swap Disks.  Please send any
comments, suggestions &c to Tapani Tarvainen <tapani@iki.fi>.

The directory names reflect the original volume labels, and
file names are as originally except that they've been converted
to lower case, an extension indicating the file type has been
added (see table below) and a few HP-41 files with special
characters in them have been renamed (see list below).

In addition HP-71 BASIC programs have been saved both
in original, tokenized form (*.b71) and as text (*.t71),
in order to allow viewing them before downloading to HP71
and possibly for use in other machines like the HP-75
(a few files couldn't be transformed, however).
If any HP-75 owner would like to volunteer to do the same 
for HP-75 BASIC files, please let me know!
(HP-41 programs could also be saved in ASCII form (listings) -- 
if there's enough interest I could do that.  Let me know
if you'd like that.)


Filename extensions:

txt	HP-41 ASCII = HP-71 TEXT = HP-75 LIF1
	(Note: these have been converted into MS-DOS text files
	with cr-lf-terminated lines.  Some LIF1 files might be
	corrupted in this process (especially if they contain	
	graphics data).  If you find any such here, please
	notify tapani@iki.fi.  Thank you.)

d41	HP-41 data = HP-71 SDATA 

p41	HP-41 program
k41	HP-41 key file
s41	HP-41 status file
w41	HP-41 write-all (WALL) file
r41	HP-41 ROM file (RAMBOX WRTPG file)
x41	HP-41 X-memory file (Ext IL ROM WRTXM)
c41	HP-41 "calc" file (Ext IL ROM WRTCAL)
b41	HP-41 buffer (Ext IL ROM WRTBUFX)

b71	HP-71 BASIC
t71	HP-71 BASIC transformed into text
i71	HP-71 BIN
d71	HP-71 DATA
l71	HP-71 LEX
k71	HP-71 KEY
f71	HP-71 FORTH
r71	HP-71 ROM
g71	HP-71 GRAPH

b75	HP-75 BASIC
t75	HP-75 TEXT
a75	HP-75 APPT
g75	HP-75 GRAPH
l75	HP-75 LEX
w75	HP-75 WS
r75	HP-75 ROM



Filenames changed from original swap disks:

disk	original	here

CHHU04	CD^MS*		cdtomsx.p41
	CFRAME*		cframex.p41
CHHU06	B2-BUF		b2tobuf.p41
	B2-BUFT		b2tobuft.txt
	CD^MS		cdtoms.p41
	CD^MST		cdtomst.txt
SWAP09	ROM>DSK		rom2dsk.p41
	DSK>ROM		dsk2rom.p41
	H>D		h2d.p41
	D>H		d2h.p41
	AVIA 1A		avia1a.r41
SWAP11	BCa/b1		bcapb1.p41
	BCa/b2		bcapb2.p41