h6. [[OS SWI Calls]] h6(. » OS_WriteN h2. OS_WriteN h5. (SWI &46) |_<^{width:4em}. Entry | | |<^. R0 |<^. Pointer to string | |<^. R1|<^. Number of bytes to write | |_<^{width:4em}. Exit | | |<^. R0 |<^. Preserved | |<^. R1 |<^. Preserved | h4. Use The purpose of this call is to write a counted string to the VDU. h4. Notes This SWI sends the R1 bytes in R0 to all active output streams (specified by [[OS_Byte 3]]). If [[WrchV]] has not been intercepted with [[OS_Claim]] it will directly call the VDU driver which is faster, otherwise it calls [[OS_WriteC]] to write each character. h4. See also * [[OS_Byte 3]] * [[OS_Claim]] * [[OS_Write0]] * [[OS_WriteC]] * [[OS_WriteI]] * [[OS_WriteS]] * [[WrchV]]