I/O Trap Cause Register: Difference between revisions
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updated to 78a6ee50 |
m Xalior moved page I/O Trap Cause to I/O Trap Cause Register: match formal nextreg.txt name |
(No difference)
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Latest revision as of 12:45, 14 October 2025
| Number | TBRegisterNumber::$DA |
|---|---|
| Readable | TBRegisterReadable::Yes |
| Writable | TBRegisterWritable::No |
| Short Description | ShortDesc::experimental |
0 = none (zero at the same time nextreg 0x02 bit 4 is 0) 1 = port_2ffd read 2 = port_3ffd read 3 = port_3ffd write
- If nextreg 0x02 bit 4 indicates an i/o cycle was trapped, this register indicates the cause