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Send count bytes of value to dest. If dest is in RAM, fills count bytes. If dest is the serial output, sends count characters.
count can be 1 to 255, so long as it doesn't overflow RAM (if RAM is the destination). The maximum number of bytes per message to the serial port is 255. However, the serial transmit buffer is 128 bytes (which could change in future Firmware revisions). If you try to send out more than the buffer can hold, your program will stall until there is room in the buffer (this is your whole program, not just a single MultiTrack task). You can avoid this by using COMTx_Space to ensure there is room before attempting to output.
Used mainly to clear a RAM data block. Typically RAM will be used as the destination when data is destined for an Xwire device.
This instruction is automatically indexed.
When printing to RAM the index register I is added to the dest address and the result is stored in that location. I is then incremented by the number of characters stored. This allows several things to be "printed" to RAM.
"Printing" to RAM is typically used for communicating with an Xwire peripheral.
The dest argument determines where the result of the instruction is directed.
Destination address (dest) |
Where the result is directed |
0 - 249 |
The result is stored in successive RAM locations, starting at dest. It will occupy as many RAM locations as are needed to contain the result, one location per character. For example, the result of Note: These addresses are not jndexed. Instead they use |
251 |
The result is directed to the serial port, providing the selected protocol is "User programmable". This is the primary means of generating any arbitrary serial output under program control. |
Dialect exclusions: Not available in dialects before 23
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