HAWKEYE (edited) - Processor Flags and status bits
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12-14-2021, 12:33 AM
(This post was last modified: 12-16-2021 11:27 PM by Mike T..)
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HAWKEYE (edited) - Processor Flags and status bits
Edited to correct title.
I'm trying to make sense of the various processor flags and status bits used by the HP67, I'm reasonably happy with what the flags do though there are a couple of gaps in the table, and I can't work out if the mode flag should be set directly from the switch position. Code:
However I'm rather less clear on which status bits are set or cleared directly by the hardware. S15 is set when any key is pressed and S11 appears to be set by the RUN/PRGM switch position. However I'm unsure if any other bits are set or cleared directly by the hardware or what effect the CRC instructions have on them. Code:
Thank you. Mike T. HP21, HP25, HP32E, HP33C, HP34C, HP10C, HP11C, HP12C, HP32S, HP22S |
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Messages In This Thread |
HAWKEYE (edited) - Processor Flags and status bits - Mike T. - 12-14-2021 12:33 AM
RE: TOPCAT - Processor Flags and status bits - Jake Schwartz - 12-14-2021, 02:52 PM
RE: TOPCAT - Processor Flags and status bits - Mike T. - 12-14-2021, 09:41 PM
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