56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
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/*
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* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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*
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* This product is part of the Amsterdam Compiler Kit.
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*
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* Permission to use, sell, duplicate or disclose this software must be
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* obtained in writing. Requests for such permissions may be sent to
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*
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* Dr. Andrew S. Tanenbaum
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* Wiskundig Seminarium
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* Vrije Universiteit
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* Postbox 7161
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* 1007 MC Amsterdam
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* The Netherlands
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*
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*/
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#include "ass00.h"
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#include "assex.h"
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/*
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** Make scans to do final assignment of instruction sizes & formats
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** to those not already done. assign final values to labels
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*/
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pass_4()
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{
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register line_t *lnp;
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register locl_t *lbp;
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int min_l, max_l;
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int instr;
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pass = 4;
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prog_size= 0 ;
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for (lnp = pstate.s_fline ; lnp ; lnp= lnp->l_next, line_num++) {
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instr = ctrunc(lnp->instr_num);
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if ( instr==sp_fpseu ) {
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line_num = lnp->ad.ad_ln.ln_first ;
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continue ;
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}
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if ( instr==sp_ilb1 ) {
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lbp = lnp->ad.ad_lp;
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lbp->l_min= prog_size; lbp->l_defined = YES;
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continue ;
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}
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if (lnp->opoff == NO_OFF)
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{
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determine_props(lnp, &min_l, &max_l);
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if (min_l != max_l)
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fatal("no size known");
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} else {
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min_l = oplength(*(lnp->opoff)) ;
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}
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prog_size += min_l ;
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}
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}
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