Difference between revisions of "Peripheral 1 Register"
From SpecNext official Wiki
| Line 3: | Line 3: | ||
|Readable=Yes | |Readable=Yes | ||
|Writable=Yes | |Writable=Yes | ||
| − | |ShortDesc= | + | |ShortDesc=Sets joystick mode, video frequency, [[Scanlines]] and [[Scandoubler]]. |
}} | }} | ||
| + | |||
| + | {| | ||
| + | ! Bit !! Function | ||
| + | |- | ||
| + | | 7-6 || Joystick 1 mode | ||
| + | |- | ||
| + | | 5-4 || Joystick 0 mode | ||
| + | |- | ||
| + | | 3 || Reserved | ||
| + | |- | ||
| + | | 2 || Enable 60hz mode | ||
| + | |- | ||
| + | | 1 || Enable Scanlines | ||
| + | |- | ||
| + | | 0 || Enable Scandoubler | ||
| + | |} | ||
| + | |||
| + | The codes for joystick modes are as follows: | ||
| + | |||
| + | {| | ||
| + | ! Code ! Effect | ||
| + | |- | ||
| + | | 00 || Sinclair Joystick (Joystick 1 maps to keys 1,2,3,4,5; joystick 2 maps to keys 6,7,8,9,0) | ||
| + | |- | ||
| + | | 01 || Kempston Joystick (uses port {{PortNo|$xx1F}}). Only one joystick can be Kempston | ||
| + | |- | ||
| + | | 10 || Cursor Joystick (maps to keys 5,6,7,8,0). Only one joystick can be Cursor | ||
| + | |} | ||
Revision as of 01:52, 30 August 2017
| Number | $05 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Sets joystick mode, video frequency, Scanlines and Scandoubler. |
| Bit | Function |
|---|---|
| 7-6 | Joystick 1 mode |
| 5-4 | Joystick 0 mode |
| 3 | Reserved |
| 2 | Enable 60hz mode |
| 1 | Enable Scanlines |
| 0 | Enable Scandoubler |
The codes for joystick modes are as follows:
| Code ! Effect | |
|---|---|
| 00 | Sinclair Joystick (Joystick 1 maps to keys 1,2,3,4,5; joystick 2 maps to keys 6,7,8,9,0) |
| 01 | Kempston Joystick (uses port Kempston Joystick ($xx1F / 31)). Only one joystick can be Kempston |
| 10 | Cursor Joystick (maps to keys 5,6,7,8,0). Only one joystick can be Cursor |