
*
* Parallel Printer Device Structure
*

PPBUFSIZ equ 128 Queue Buffer Size
PPLOC equ 40 low water mark
PPCOND equ $2e disable interrupts
PPCONE equ $2f enable interrupts

 base 0
ppadr rmb 2 PIA base address (B Side)
ppcnt rmb 1 character counter
ppbusy rmb 1 busy flag (kludge!)
ppipt rmb 2 input q pointer
ppopt rmb 2 output q pointer
ppbuf rmb 128 print buffer
ppbnd equ * buffer end
*
PPSIZ equ *
