Important: The information in this document is obsolete and should not be used for new development.
Fetch
You can use theFetch
routine to get the next character from the data buffer.DESCRIPTION
TheFetch
routine gets the next character from the data buffer pointed to by theioBuffer
field of the parameter block of the pending request. It increments theioActCount
field by 1. If theioActCount
field equals theioReqCount
field, this routine sets bit 15 of register D0. After receiving the last byte request, the driver should jump to theIODone
routine.
Registers on entry A1 Pointer to the device control entry
Registers on exit D0 Character fetched; bit 15 = 1 if this is the last character in the buffer
Jump vector JFetch