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changeset 2019:51a12746307c

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System state debugging somewhat working under Level 1, still issues though.
author boisy
date Fri, 10 Mar 2006 03:46:00 +0000
parents 505c8d261ef6
children 9dafc4b4c6dd
files 3rdparty/p2mods/noice/noice.asm
diffstat 1 files changed, 8 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/3rdparty/p2mods/noice/noice.asm	Wed Mar 08 01:58:50 2006 +0000
+++ b/3rdparty/p2mods/noice/noice.asm	Fri Mar 10 03:46:00 2006 +0000
@@ -172,12 +172,17 @@
                lda       #$01
 * Interesting trick here... I cannot see where the kernel stores the stack
 * register when processing a system call in system state.  I observed that
-* the actual value of S was $15 bytes from where S is when entering the
+* the actual value of S was some constant from where S is when entering the
 * system call.  We'll see how this holds up during system state debugging,
 * and whether changes to the kernel will affect this offset.
-               leas      $15,s
+               IFEQ      Level-1
+stackoff       equ       $12
+               ELSE
+stackoff       equ       $15
+               ENDC
+               leas      stackoff,s
                sts       syssp,u
-               leas      -$15,s
+               leas      -stackoff,s
                
 usernext       sta       ssflag,u
 * If this is a breakpoint (state = 1) then back up PC to point at SWI2