ack/plat/em/libsys/brk.e

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#
#include <em_abs.h>
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mes 2,EM_WSIZE,EM_PSIZE
.1
bss EM_PSIZE,0,0
.2
bss EM_WSIZE,0,0
pro $ctch,0
lol 0
loc EHEAP
beq *1
lae .1
loi EM_PSIZE
sig
asp EM_PSIZE
lol 0
trp
rtt
1
loc 1
ste .2
rtt
end
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exp $brk
pro $brk,0
lpi $ctch
sig
lae .1
sti EM_PSIZE
loc 0
ste .2
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lal 0
loi EM_PSIZE
str 2 ; The - possibly - occurring trap is caught
lae .1
loi EM_PSIZE
sig
asp EM_PSIZE
loe .2
zgt *1
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zer EM_PSIZE
ret EM_PSIZE
1
loc -1
loc EM_WSIZE
loc EM_PSIZE
cii
ret EM_PSIZE
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end