.sect .text; .sect .rom; .sect .data; .sect .bss
.define __sbrk
.sect .text
__sbrk:
push bp
mov bp,sp
push ds
mov ax,4(bp)
cwd
push dx
push ax
mov ax,1
call __brkctl
add sp,8
cmp ax,-1
je 1f
1:
mov dx,4(bp)
add (.limhp),dx
pop bp
ret
__brkctl:
mov ax,4904
jmp sysal
