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level1: Rename "coco1" DriveWire modules to "38400" Better reflects the fact that only the baud rate is different in these modules.
author Tormod Volden <debian.tormod@gmail.com>
date Sun, 26 Jul 2015 10:38:59 +0200
parents 1647f1874cdf
children
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* Disassembly by Os9disasm of lseek.r

 section code

* OS-9 system function equates

I$Seek equ $88 
I$GetStt equ $8d 

lseek: pshs  u 
 ldd   10,s 
 bne   L000e 
 ldu   #0 
 ldx   #0 
 bra   L0042 
L000e cmpd  #1 
 beq   L0039 
 cmpd  #2 
 beq   L002e 
 ldb   #247 
L001c clra   
 std   errno,y 
 ldd   #-1 
 leax  _flacc,y 
 std   ,x 
 std   2,x 
 puls  u,pc 
L002e lda   5,s 
 ldb   #2 
 os9 I$GetStt 
 bcs   L001c 
 bra   L0042 
L0039 lda   5,s 
 ldb   #5 
 os9 I$GetStt 
 bcs   L001c 
L0042 tfr   u,d 
 addd  8,s 
 std   _flacc+2,y 
 tfr   d,u 
 tfr   x,d 
 adcb  7,s 
 adca  6,s 
 bmi   L001c 
 tfr   d,x 
 std   _flacc,y 
 lda   5,s 
 os9 I$Seek 
 bcs   L001c 
 leax  _flacc,y 
 puls  u,pc 

 endsect