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include defs
# dsinit --- initialize dynamic storage space to w words
subroutine dsinit (w)
integer w
DS_DECL(Mem, 1)
pointer t
if (w < 2 * DS_OHEAD + 2)
call error ("in dsinit: unreasonably small memory size.")
# set up avail list:
t = DS_AVAIL
Mem (t + DS_SIZE) = 0
Mem (t + DS_LINK) = DS_AVAIL + DS_OHEAD
# set up first block of space:
t = DS_AVAIL + DS_OHEAD
Mem (t + DS_SIZE) = w - DS_OHEAD - 1 # -1 for MEMEND
Mem (t + DS_LINK) = LAMBDA
# record end of memory:
Mem (DS_MEMEND) = w
return
end
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