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sysgo.asm: Delete trailing whitespace, fix indent (no functional change) Add comments and vertical whitespace for readability.
author Neal Crook <foofoobedoo@gmail.com>
date Thu, 06 Apr 2017 22:04:46 +0100
parents d166949fd49d
children
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********************************************************************
* Parallel - Disto Parallel Printer driver
*
* $Id$
*
* Ed.    Comments                                       Who YY/MM/DD
* ------------------------------------------------------------------
*  12    ???

         nam   Parallel
         ttl   Disto Parallel Printer driver

* Disassembled 98/08/25 13:20:51 by Disasm v1.6 (C) 1988 by RML

         ifp1
         use   defsfile
         endc

tylg     set   Drivr+Objct   
atrv     set   ReEnt+rev
rev      set   $01
edition  set   12

         mod   eom,name,tylg,atrv,start,size

u0000    rmb   29
u001D    rmb   1
u001E    rmb   1
u001F    rmb   1
size     equ   .

         fcb   UPDAT.

name     fcs   /Parallel/
         fcb   edition

start    lbra  Init
         lbra  Read
         lbra  Write
         lbra  GetStat
         lbra  SetStat
         lbra  Term

Read     comb  
         ldb   #E$BMode
         rts   

Write    ldb   >MPI.Slct
         andb  #$33
         pshs  b
         ldb   #$33
         stb   >MPI.Slct
         tst   >$FF52
         bmi   Nap
L003E    sta   >$FF52
         sta   >$FF52
         puls  b
         stb   >MPI.Slct
         clrb  
         rts   

Nap      ldx   #$0001
         os9   F$Sleep  
         tst   >$FF52
         bpl   L003E
         bra   Nap

SetStat  comb  
         ldb   #E$UnkSvc
         rts   

GetStat  cmpa  #SS.ScSiz
         bne   SetStat
         ldx   PD.RGS,y
         clra  
         ldb   <u001D,u
         std   R$X,x
         ldb   <u001E,u
         std   R$Y,x
Term     clra  
         lbra  Write
         lbra  Write
         lbra  Write
         clrb  
         rts   

Init     ldd   <$2C,y
         std   <u001D,u
         lda   ,y
         sta   <u001F,u
         clrb  
         rts   

         emod
eom      equ   *
         end