view lib/kreiderclib/intercept.as @ 3226:9749d0dfc4a2

Changed a puls PC to rts to save cycles
author David Ladd <drencor-xeen@users.sourceforge.net>
date Sat, 20 Jan 2018 19:32:22 -0600
parents 1647f1874cdf
children
line wrap: on
line source

* Disassembly by Os9disasm of intercept.r

* OS-9 system function equates

F$Icpt equ $09 

 section bss

* Uninitialized data (class B)
B0000 rmb 2 
* Initialized Data (class G)

 endsect  

 section code

intercept: pshs  u 
 tfr   y,u 
 ldx   4,s 
 stx   B0000,y 
 leax  >L0016,pcr 
 os9 F$Icpt 
 puls  u 
 lbra  _sysret 
L0016 tfr   u,y 
 clra   
 pshs  d 
 jsr   [B0000,y] 
 leas  2,s 
 rti    

 endsect