Difference between revisions of "Memory Paging Control"
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(Created page with "{{Port |Number=$7FFD |ShortDesc=Selects active RAM, ROM, and displayed screen. |Readable=No |Writable=Yes |Subsystem=Memory Map }}") |
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|Readable=No | |Readable=No | ||
|Writable=Yes | |Writable=Yes | ||
| − | |Subsystem=Memory | + | |Subsystem=Memory map |
}} | }} | ||
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| + | Selects the active memory page in slot 4 at $C000. See [[Memory map]]. | ||
| + | |||
| + | Any values written to this port should also be stored at $5B5C if any OS routines are in use. | ||
Revision as of 17:22, 18 August 2017
| Number | $7FFD |
|---|---|
| Decimal | |
| Short desc. | Selects active RAM, ROM, and displayed screen. |
| Bit Mask | |
| Readable | No |
| Writable | Yes |
| Subsystem | Memory map |
Selects the active memory page in slot 4 at $C000. See Memory map.
Any values written to this port should also be stored at $5B5C if any OS routines are in use.