Ticket #193 (Fixed)Wed Nov 05 23:53:53 UTC 2008

Wrong register restored in Draw module

Details by Stephen Wigner (209):

file: Draw.s.DrOutput
routine: updatebox
line: 1986

The register list restored on exit from this routine (which supports SWI “OS_ChangedBox”) does not match the list saved on entry.

updatebox
Push “t1,t2,t3,t4,outcnt,LR”
SavePSR outcnt
ADR R14,boundingbox
[snip]
commonbox
ADR R14,boundingbox
STMIA R14,{t1,t2,t3,t4}
RestPSR outcnt,,f
Pull “t1,t2,t3,t4,t5,PC”

The last line (1986) should read:
Pull “t1,t2,t3,t4,outcnt,PC”