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| - | ====== MC-10 Extension Multiport Joystick Info ====== | ||
| - | ===== Memory Mapped I/O Ports ===== | ||
| - | Looking over the MC to the Extension Multiport plugged in behind: | ||
| - | * The lefthand port is address $BF34 / 48948 | ||
| - | * The righthand port is address $BF30 / 48944 | ||
| - | |||
| - | ===== Joystick Decoding ===== | ||
| - | The directions and button are all read from the same address for each port: | ||
| - | * bit 0 of the port: 1=up | ||
| - | * bit 1 of the port: 1=down | ||
| - | * bit 2 of the port: 1=left | ||
| - | * bit 3 of the port: 1=right | ||
| - | * bit 4 of the port: 1=pressed | ||
| - | |||
| - | ===== Test Code ===== | ||
| - | <code blitzbasic> | ||
| - | 10 CLS | ||
| - | 20 PRINT PEEK(48944) | ||
| - | 30 PRINT PEEK(48948) | ||
| - | 40 FOR I=1 TO 50:NEXT | ||
| - | 50 GOTO 10 | ||
| - | </ | ||
| - | |||
| - | Thanks to MrDave for the port numbers! | ||
| - | |||
| - | Return to [[:top]] | ||