Pentagon 1024 paging
From SpecNext official Wiki
| Number | $EFF7 |
|---|---|
| Decimal | 61431 |
| Short desc. | Paging in Pentagon 1024K mode |
| Bit Mask | 1110111111110111 |
| Readable | no |
| Writable | yes |
| Subsystem |
bit 3 = 1 to overlay the bottom 16K with ram from 16k bank 0 bit 2 = 0 to enable Pentagon 1024 mapping and disable bit 5 port 0x7ffd locking, 1 to select standard zx128 mapping **
- ** Applies only when pentagon 1024 mapping mode is enabled via nextreg 0x8f.