Difference between revisions of "Layer 2 RAM Page Register"
From SpecNext official Wiki
| Line 3: | Line 3: | ||
|Readable=Yes | |Readable=Yes | ||
|Writable=Yes | |Writable=Yes | ||
| + | |ShortDesc=Sets the "SRAM page"(?) used by Layer 2 for video memory. | ||
}} | }} | ||
| + | |||
| + | Bits 5-0 store the number of the "SRAM page" used for the standard Layer 2 screen. The default is 8. | ||
| + | |||
| + | It is not clear what an "SRAM page" actually is. It does not correspond to a "bank" in standard memory management because Layer 2 is too big to fit into a single bank (it is $BFFF big while a regular bank is $3FFF). | ||
Revision as of 23:05, 29 August 2017
| Number | $12 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Sets the "SRAM page"(?) used by Layer 2 for video memory. |
Bits 5-0 store the number of the "SRAM page" used for the standard Layer 2 screen. The default is 8.
It is not clear what an "SRAM page" actually is. It does not correspond to a "bank" in standard memory management because Layer 2 is too big to fit into a single bank (it is $BFFF big while a regular bank is $3FFF).