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- /*
- * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
- * See the copyright notice in the ACK home directory, in the file "Copyright".
- *
- */
- #ifndef NORCSID
- static char rcs_mach[] = "$Id$" ;
- static char rcs_h[] = RCS_H ;
- #endif
- /*
- * machine dependent back end routines for the Zilog Z80 (as well as Intel 8080)
- */
- con_part(sz,w) register sz; word w; {
- while (part_size % sz)
- part_size++;
- if (part_size == TEM_WSIZE)
- part_flush();
- if (sz == 1) {
- w &= 0xFF;
- if (part_size)
- w <<= 8;
- part_word |= w;
- } else {
- assert(sz == 2);
- part_word = w;
- }
- part_size += sz;
- }
- con_mult(sz) word sz; {
- long atol();
- if (argval != 4)
- fatal("bad icon/ucon size");
- fprintf(codefile, ".data4\t%ld\n", atol(str));
- }
- con_float() {
- static int been_here;
- int sz = argval;
- if (sz != 4 && sz != 8) {
- fatal("bad fcon size");
- }
- if (! been_here) {
- been_here = 1;
- fprintf(stderr,"warning: dummy floating constant(s)\n");
- }
- while (sz) {
- fprintf(codefile, ".data4 0 !dummy float\n");
- sz -= 4;
- }
- }
- prolog(nlocals) full nlocals; {
- fprintf(codefile,"\tpush\tiy\n\tld\thl,0\n\tadd\thl,sp\n\tpush\thl\n\tpop\tiy\n");
- switch (nlocals) {
- case 8: fprintf(codefile,"\tpush\thl\n");
- case 6: fprintf(codefile,"\tpush\thl\n");
- case 4: fprintf(codefile,"\tpush\thl\n");
- case 2: fprintf(codefile,"\tpush\thl\n");
- case 0: break;
- default:
- fprintf(codefile,"\tld\thl,%d\n\tadd\thl,sp\n\tld\tsp,hl\n",-nlocals);
- break;
- }
- }
- mes(type) word type ; {
- int argt ;
- switch ( (int)type ) {
- case ms_ext :
- for (;;) {
- switch ( argt=getarg(
- ptyp(sp_cend)|ptyp(sp_pnam)|sym_ptyp) ) {
- case sp_cend :
- return ;
- default:
- strarg(argt) ;
- fprintf(codefile,".define %s\n",argstr) ;
- break ;
- }
- }
- default :
- while ( getarg(any_ptyp) != sp_cend ) ;
- break ;
- }
- }
- char *segname[] = {
- ".sect .text",
- ".sect .data",
- ".sect .rom",
- ".sect .bss"
- };
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