improved sbrk

1988-04-14 10:45:42 +00:00 · 1988-04-14 10:45:42 +00:00 · 355177a22c
parent 1da83e161b
commit 355177a22c
1 changed files with 5 additions and 1 deletions
--- a/lang/cem/libcc/mon/sbrk.e
+++ b/lang/cem/libcc/mon/sbrk.e
@ -37,7 +37,11 @@
 loc 0
 ste .2
 lol 0
- ads EM_WSIZE
+ ads EM_WSIZE	; this is the new heap pointer, but watch out for overflow!
+ dup EM_WSIZE
+ lor 2
+ cmp		; compare with old heap pointer
+ zlt *1
 str 2          ; The - possibly - occurring trap is caught
 lae .1
 loi EM_PSIZE