Post Reply 
HP-41 Boost module 0B and OS4 version 2A
11-26-2020, 07:12 AM
Post: #1
HP-41 Boost module 0B and OS4 version 2A
Updated Boost module released, together with an updated OS4.

Highlights:
  • Now with a manual
  • Direct access to X-memory data files using XSTO, XRCL etc
  • Dual operand compares, <, <=, =, not-equal, combine your own compares, IND Z <= 05 ?
  • Dual register exchange, IND 05 <> 02, also between normal registers and X-memory file: Z <>X 05 (exchange Z with register 05 in current data file).
  • Dynamic stack buffer, push alpha, registers, RPN stack, flag, return stack, data registers. Makes it easy to write RPN code that preserves registers that you do not want to disturb.
  • The dynamic stack makes it easy to write RPN functions that take a parameter from X (or X and Y), internally mess up registers and finally return something in X, preserving the rest of the stack and having old X value moved to L. Simply push the stack with PUSHST, restore with POPFLXL (pop stack, keep new X and move old X to L), POPDRXL is similar, but simulates taking parameters from X and Y, dropping the stack when registers are restored in a similar fashion.
  • Many more functions provided.

Versions for ordinary HP-41 models as well as HP-41CL (with speed annotations) available.

Available now from:
https://github.com/hth313/boost41/releases/tag/v0B
https://github.com/hth313/OS4/releases/tag/v2A
Find all posts by this user
Quote this message in a reply
11-26-2020, 03:32 PM
Post: #2
RE: HP-41 Boost module 0B and OS4 version 2A
I for one want to say thank you for all these efforts. Pushing the envelope as you are doing for the 41 series is incredible!
Find all posts by this user
Quote this message in a reply
Post Reply 




User(s) browsing this thread: 1 Guest(s)