HP-41 Byte Table
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12-27-2018, 09:11 PM
(This post was last modified: 12-27-2018 09:19 PM by JurgenRo.)
Post: #5
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RE: HP-41 Byte Table
(12-27-2018 09:05 PM)JurgenRo Wrote:(12-27-2018 08:31 PM)Thomas Okken Wrote: The HP-41C/CV/CX and 42S store the offset from a GTO or XEQ instruction to its target LBL in the GTO / XEQ instruction. When the GTO or XEQ is first entered into a program, the offset is initially set to zero, meaning "unknown"; when the instruction is executed for the first time, a label search is performed, just like on older programmable HPs, and when the label is found, the difference between its address and the address of the GTO or XEQ is stored in said GTO or XEQ. Any subsequent time the instruction is executed, it can find the label instantly by adding the stored offset to the current instruction's address. ... especially, I'm thinking of constructing those by synthetic means. By SP, as far as I understand SP, I would have the choice to construct the XEQ by 16 means: E0, E1, ...., EE, EF. So, the question arises: which one of those 16 should I construct? ;-)Or is there no difference between those at all? And, aditionally, by which rules does the processor chose on of those "XEG--" ... I hope you understand my point |
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Messages In This Thread |
HP-41 Byte Table - JurgenRo - 12-27-2018, 07:54 PM
RE: HP-41 Byte Table - Thomas Okken - 12-27-2018, 08:31 PM
RE: HP-41 Byte Table - JurgenRo - 12-27-2018, 09:05 PM
RE: HP-41 Byte Table - JurgenRo - 12-27-2018 09:11 PM
RE: HP-41 Byte Table - Sylvain Cote - 12-28-2018, 04:43 PM
RE: HP-41 Byte Table - JurgenRo - 12-28-2018, 08:34 PM
RE: HP-41 Byte Table - Sylvain Cote - 12-27-2018, 09:02 PM
RE: HP-41 Byte Table - JurgenRo - 12-27-2018, 10:46 PM
RE: HP-41 Byte Table - Thomas Okken - 12-27-2018, 09:18 PM
RE: HP-41 Byte Table - JurgenRo - 12-27-2018, 09:22 PM
RE: HP-41 Byte Table - hth - 12-28-2018, 05:14 PM
RE: HP-41 Byte Table - JurgenRo - 12-28-2018, 08:44 PM
RE: HP-41 Byte Table - Sylvain Cote - 12-28-2018, 09:17 PM
RE: HP-41 Byte Table - Thomas Okken - 12-28-2018, 11:44 PM
RE: HP-41 Byte Table - JurgenRo - 12-28-2018, 11:57 PM
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