M Registers on early HP Calculators
|
04-24-2017, 01:11 PM
Post: #2
|
|||
|
|||
RE: M Registers on early HP Calculators
(04-24-2017 03:34 AM)bshoring Wrote: The Classic series, starting with the HP-35, has the scratch registers A & B, and then the XYZT stack represented internally by registers C-D-E-F, and then there is a M register. The M, M1 and M2 registers can be used as storage or as general purpose scratch pad registers to help the microcode out if it needs to temporarily store some data. The HP45 for example uses the M register to store the FIX SCI values when set by the user. In the HP97 this data is stored in RAM memory register $3E. The HP67 uses M1 quite a lot while executing various functions. Not familiar with Voyagers. cheers Tony |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
M Registers on early HP Calculators - bshoring - 04-24-2017, 03:34 AM
RE: M Registers on early HP Calculators - teenix - 04-24-2017 01:11 PM
RE: M Registers on early HP Calculators - bshoring - 04-25-2017, 01:58 AM
|
User(s) browsing this thread: 1 Guest(s)