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4K HP 67 Games rom attached for testing
10-26-2016, 10:37 PM (This post was last modified: 10-26-2016 10:56 PM by Gene.)
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RE: 4K HP 67 Games rom attached for testing
I have a version of FLLW67 that does not use card reader functions now and a version of GOLF67 that does not use the card reader functions.

Anyone want to take on G2636 and get it running without card reader functions? One more to go!

Note: The G2636 program has a couple of steps that are tough for me to think through how to translate. They show in steps 38-45:

RCL 01

So if the first X<=Y? instruction is true, it wants to add 1 to memory register 25 and skip if the contents are equal to zero.

My confusion is that the HP 41 equivalent is ISG. Increment and skip if GREATER than zero.

In this circumstance, the HP 67 would skip the next step ONLY if memory 25 were 0, which it is not. So the HP 67 code is merely adding 1 to register 25.

On the HP 41 not using the card reader translator function, it would add 1 to memory 25 and then almost certainly skip the next step if register 25 held 5, 10 or 15 as its value.

The alternative of 1 ST+25 isn't good here since it disturbs the stack.

So hmm.... suggestions?
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RE: 4K HP 67 Games rom attached for testing - Gene - 10-26-2016 10:37 PM
HP-67 AOS program to debug - Gene - 10-30-2016, 02:11 AM

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