161 lines
2.8 KiB
C
161 lines
2.8 KiB
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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#ifndef NORCSID
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static char rcsid[] = "$Header$" ;
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#endif
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con_part(sz, w)
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register int sz;
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word w;
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{
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while (part_size % sz) part_size++;
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if (part_size == TEM_WSIZE)
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part_flush();
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if (sz == 1 || sz == 2) {
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w &= (sz == 1 ? 0xFF : 0xFFFF);
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w <<= 8 * part_size;
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part_word |= w;
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} else {
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assert(sz == 4);
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part_word = w;
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}
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part_size += sz;
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}
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con_mult(sz)
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word sz;
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{
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if (sz != 4)
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fatal("bad icon/ucon size");
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fprintf(codefile,".data4\t%s\n",str);
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}
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#ifdef REGVARS
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full lbytes;
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struct regadm {
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char *ra_str;
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long ra_off;
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} regadm[4];
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int n_regvars;
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regscore(off,size,typ,score,totyp) long off; {
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/*This function is copied from pdp/ncg
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*/
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/*
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* This function is full of magic constants.
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* They are a result of experimentation.
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*/
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if (size != 2)
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return(-1);
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score -= 1; /* allow for save/restore */
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if (off>=0)
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score -= 2;
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if (typ==reg_pointer)
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score *= 17;
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else if (typ==reg_loop)
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score = 10*score+50; /* Guestimate */
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else
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score *= 10;
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return(score); /* 10 * estimated # of words of profit */
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}
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i_regsave() {
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n_regvars=0;
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}
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f_regsave(){
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register i;
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register int c = ' ';
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fprintf(codefile, "enter [");
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for (i=0; i<n_regvars; i++) {
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fprintf(codefile,"%c%s", c, regadm[i].ra_str);
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c = ',';
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}
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fprintf(codefile, "], %ld\n", lbytes);
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for (i=0;i<n_regvars;i++)
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if (regadm[i].ra_off>=0)
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fprintf(codefile, "movd %ld(fp), %s",
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regadm[i].ra_off, regadm[i].ra_str);
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}
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regsave(regstr,off,size) char *regstr; long off; {
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fprintf(codefile,"\t! Local %ld into %s\n",off,regstr);
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regadm[n_regvars].ra_str = regstr;
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regadm[n_regvars].ra_off = off;
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n_regvars++;
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}
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regreturn() {
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register int i;
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register int c = ' ';
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fprintf(codefile, "exit [");
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for (i=1; i<n_regvars; i++) {
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fprintf(codefile,"%c%s", c, regadm[i].ra_str);
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c = ',';
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}
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fprintf(codefile, "]\n");
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}
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#endif
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mes(type) word type ; {
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int argt ;
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switch ( (int)type ) {
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case ms_ext :
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for (;;) {
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switch ( argt=getarg(
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ptyp(sp_cend)|ptyp(sp_pnam)|sym_ptyp) ) {
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case sp_cend :
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return ;
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default:
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strarg(argt) ;
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fprintf(codefile,".define %s\n",argstr) ;
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break ;
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}
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}
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default :
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while ( getarg(any_ptyp) != sp_cend ) ;
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break ;
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}
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}
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prolog(nlocals) full nlocals; {
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#ifndef REGVARS
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fprintf(codefile, "enter[], %ld\n",nlocals);
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#else
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lbytes = nlocals;
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#endif
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}
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char *segname[] = {
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".sect .text",
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".sect .data",
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".sect .rom",
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".sect .bss"
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};
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con_float() {
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static int warning_given;
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int i;
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if (! warning_given) {
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fprintf(stderr, "warning: dummy floating point constant\n");
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warning_given = 1;
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}
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for (i = argval; i > 0; i -= 4) {
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fputs(".data4 0 ! dummy float\n", codefile);
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}
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}
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