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view CoCoOS9/level2v3/CMDS/sleep.asm @ 31:bd2b07db8917 cocoos9lv2v3

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CoCoOS9 version
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Sat, 14 Jul 2018 15:16:13 +0900
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********************************************************************
* Sleep - Sleep for some ticks
*
* $Id: sleep.asm,v 1.1.1.1 2001/02/21 23:30:54 boisy Exp $
*
* Ed.    Comments                                       Who YY/MM/DD
* ------------------------------------------------------------------
* 2      Original Tandy distribution version

         nam   Sleep
         ttl   Sleep for some ticks

* Disassembled 98/09/14 23:48:34 by Disasm v1.6 (C) 1988 by RML

         ifp1
         use   defsfile
         endc

tylg     set   Prgrm+Objct   
atrv     set   ReEnt+rev
rev      set   $01
edition  set   2

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

u0000    rmb   450
size     equ   .

name     fcs   /Sleep/
         fcb   edition

start    clra  
         clrb  
         bsr   L0028
         bsr   L0028
         bsr   L0028
         bsr   L0028
         bsr   L0028
         tfr   d,x
         os9   F$Sleep  
         clrb  
         os9   F$Exit   
L0028    pshs  b,a
         ldb   ,x
         subb  #$30
         bcs   L0048
         cmpb  #$09
         bhi   L0048
         leax  $01,x
         pshs  b
         ldb   #$0A
         mul   
         stb   $01,s
         lda   $02,s
         ldb   #$0A
         mul   
         addb  ,s+
         adca  ,s
         std   ,s
L0048    puls  pc,b,a

         emod
eom      equ   *
         end