ack/mach/m68k4/libsys/brk.s

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.define _brk
.define _sbrk
.extern _brk
.extern _sbrk
.text
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_sbrk: move.l .reghp,a0
add.l 4(sp),a0
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move.w #0x11,d0
trap #0
bcs lcerror
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move.l .reghp,d0
move.l d0,a0
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add.l 4(sp),a0
move.l a0,.reghp
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rts
lcerror: jmp cerror
_brk: move.w #0x11,d0
move.l 4(sp),a0
trap #0
bcs lcerror
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move.l 4(sp),.reghp
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clr.l d0
rts