setbrk
brkbegin = setbrk(3 * BRKINCR);
if (setbrk((unsigned)((unsigned char *)
if (setbrk((unsigned)((unsigned char *)
extern unsigned char *setbrk();
setbrk(-BRKINCR);
if (setbrk(brkincr) == -1)
if (setbrk(incr) == -1)
extern char *setbrk();
frame = stk = (struct s *)setbrk(DELTA);
#define SPACETEST(base, size) while ((enda - (size)) <= (char *)(base)){setbrk(DELTA);}
extern char *setbrk();
extern char *setbrk();
codestr = setbrk((int) stbuf.st_size);
char *setbrk(), *filebase, *p;
filebase = setbrk(dev.filesize + 2*EXTRAFONT); /* enough room for whole file */