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