=> R0 = 245 (&F5)
R1 = EOR value
R2 = AND value
<= R0 preserved
R1 = value before being overwritten
R2 corrupted
This call reads or sets the path to use for printer output. The type may also be written with OS_Byte 5. The default type is set held within CMOS byte 15.
This call does not wait for the printer buffer to empty first. Because of this, it does not enable interrupts, and so may be used to read the printer type from within an interrupt routine.
See PRM 1, page 515
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