File: initctxt386.c

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tra 20020816-1
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#include "tra.h"

void
initctxt(Ctxt *l, void (*fn)(void*), void *arg)
{
	ulong *stk;
	int n;

	n = 16;
	l->stk = emalloc(n);
	stk = (ulong*)((uchar*)l->stk + n);
	--stk;
	*--stk = (ulong)arg;
	*--stk = 0;	/* return address */
	*--stk = 0;	/* new pc */
	l->label.pc = (ulong)fn+LABELDPC;
	l->label.sp = mainlabel.sp-n;
}