VM_DEFINE_INSTRUCTION (1, halt, "halt", 0, 0, 0)
{
SCM ret;
+ SCM nvalues_scm;
- nvalues = SCM_I_INUM (*sp--);
+ nvalues_scm = *sp--; /* SCM_I_INUM may evaluate its argument
+ more than once. */
+ nvalues = SCM_I_INUM (nvalues_scm);
NULLSTACK (1);
if (nvalues == 1)