.define _sbrk .define _brk .sect .text .sect .rom .sect .data .sect .bss .sect .text .extern _sbrk .extern _brk _sbrk: tst.b -8(sp) move.l 4(sp),d0 beq 1f add.l nd,d0 move.l d0,-(sp) clr.l -(sp) trap #0 .data2 0x11 add.l #8,sp bcc 1f jmp cerror 1: move.l nd,d0 move.l 4(sp),d1 add.l d1,nd rts _brk: trap #0 .data2 0x11 bcc 1f jmp cerror 1: move.l 4(sp),nd clr.l d0 rts .sect .data nd: .data4 endbss .sect .text