Sandbox ROM question for Angel


I congradulate you on the Sandbox project--excellent work.
My question: As I understand your manual your multifunctions only program as the first item in the sub-catalog? Have you considered picking up the index number from the next program line?

I ask because as part of my learning curve in dealing with mcode I wrote a generalized subroutine which can grab a line of program code (a 3 digit integer: 001,025,etc.) and turn it into a binary number. I developed it to use with non-normalized RCL and STO instructions.

For example, (program lines) 025 CLX 026 RCLNN 027 010 028 *
This will clear the x-reg. do a non-normalized recall of register 10 and then multiply. I was able, in fact to do RCL,STO, EXCHANGES, and even indirection. You are certainly welcome to the code if you think it could work. Actually I've even used this code to pass a flag number to a routine to SET and/or CLEAR any flag.



David, this as a superb idea and a very gracious offering!

In fact, that's *exactly* the method used by the HEPAX module in their implementation of the multifunctions: even if introduced their names with HEPAXA, it defaults to the indexed form and takes it from the following program line.

I've mailed you with some details, let's get this off-line and we'll get a better SANDBOX ready in a few days (optimist is my middle name :-)




I suggest using the method that I use in the ML ROM, using an alpha string as the argument. This offers an easy way to keep the code somewhat readable and alloes for much longer rguments as well.


Possibly Related Threads...
Thread Author Replies Views Last Post
  Question For Angel - SandMath 2x2 John Abbott (S. Africa) 6 1,556 05-13-2013, 11:52 AM
Last Post: John Abbott (S. Africa)
  HP85 Programmable ROM cardtridge 82929A-service ROM not working- inaki 2 1,247 04-25-2013, 08:08 AM
Last Post: inaki
  HP10BII+ question (ROM upgrade is possible?!?) Csaba Tizedes (Hungary) 6 1,619 02-21-2013, 05:19 PM
Last Post: Eric Smith
  shelf life time of a ROM, EEPROM, EPROM vs Mask Rom Guido (Canada) 6 1,905 01-11-2013, 04:09 PM
Last Post: Thomas Falk
  Big ROM - 41 System DEMO ROM Ángel Martin 5 1,596 10-16-2012, 05:28 AM
Last Post: Ángel Martin
  HP42S ROM question Han 2 928 10-01-2012, 03:15 PM
Last Post: Han
  Sandbox ROM vs Childish Prank Howard Owen 5 1,246 01-29-2012, 04:04 PM
Last Post: Ángel Martin
  TFF update; Ángel's on a roll Geir Isene 8 1,835 11-02-2011, 02:20 PM
Last Post: Ángel Martin
  Sandmath-II and 41Z - questions to Angel Vincent Weber 19 3,210 10-04-2011, 12:21 PM
Last Post: Monte Dalrymple
  Ángel Martin, my Open Source Hero Geir Isene 7 1,599 08-08-2011, 02:26 AM
Last Post: Ángel Martin

Forum Jump: