PPC CJ 10 10, 17 HP-41 ROM revisions easily determined.
PPC CJ 10 10, 31 HP-41 subroutine timer.
PPC CJ 10 10, 35 HP-41 "AL" alarm setting program.
PPC CJ 11 4, 10 RAMPAGE, a RAM page setup program.
PPC CJ 11 4, 30 ZENROM preview.
PPC CJ 11 6, 11 PPC Calculator Journal tape.
PPC CJ 11 9, 16 ROM revisions.
Articles in DataFile 1983 - 1990:
DataFile 2 2, 6 Flag control - using flag 45.
DataFile 4 5, 30 HP-41 Mcode For Beginners review.
DataFile 5 6, 5 Quadratic solution.
DataFile 8 5, 12 There's A Computer In My Pocket But My Hand's Too Big To
Get It. (Reprinted in Spring 1989 premier issue of Hill
Country News Press (1 1, 19), San Jose, CA.)
DataFile 9 1, 5 How Time Fries!
Articles in CHHU Chronicles 1984 (1) - 1986 (3):
CHHU 1 1, 8 ZENROM advances the art.
CHHU 2 1, 30 HP-71 display ROM driver bytes.
CHHU 2 3, 40 Creative computing benchmark test results HP-41/71/75.