Initial revision

mach/i80/ncg/mach.c

@@ -0,0 +1,98 @@
+/*
+ * (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ *
+ *          This product is part of the Amsterdam Compiler Kit.
+ *
+ * Permission to use, sell, duplicate or disclose this software must be
+ * obtained in writing. Requests for such permissions may be sent to
+ *
+ *      Dr. Andrew S. Tanenbaum
+ *      Wiskundig Seminarium
+ *      Vrije Universiteit
+ *      Postbox 7161
+ *      1007 MC Amsterdam
+ *      The Netherlands
+ *
+ */
+
+/*
+ * machine dependent back end routines for the Intel 8080.
+ */
+
+con_part(sz,w) register sz; word w; {
+
+	while (part_size % sz)
+		part_size++;
+	if (part_size == 2)
+		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 l;
+
+	if (argval != 4)
+		fatal("bad icon/ucon size");
+	l = atol(str);
+	fprintf(codefile,".short\t%d\n",(int)l);
+	fprintf(codefile,".short\t%d\n",(int)(l>>16));
+}
+
+con_float() {
+
+	fatal("no reals");
+}
+
+
+prolog(nlocals) full nlocals; {
+
+	fprintf(codefile,"\tpush\tb\n\tlxi\th,0\n\tdad\tsp\n\tmov\tb,h\n\tmov\tc,l\n");
+	switch (nlocals) {
+	case 8: fprintf(codefile,"\tpush\th\n");
+	case 6: fprintf(codefile,"\tpush\th\n");
+	case 4: fprintf(codefile,"\tpush\th\n");
+	case 2: fprintf(codefile,"\tpush\th\n");
+	case 0: break;
+	default:
+		fprintf(codefile,"\tlxi\th,%d\n\tdad\tsp\n\tsphl\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[] = {
+	".text",
+	".data",
+	".data",
+	".bss"
+};

mach/i80/ncg/mach.h

@@ -0,0 +1,22 @@
+#define ex_ap(y)        fprintf(codefile,".extern %s\n",y)
+#define in_ap(y)        /* nothing */
+
+#define newilb(x)       fprintf(codefile,"%s:\n",x)
+#define newdlb(x)       fprintf(codefile,"%s:\n",x)
+#define dlbdlb(x,y)     fprintf(codefile,"%s = %s\n",x,y)
+#define newlbss(l,x)       fprintf(codefile,"%s:.space\t%d\n",l,x);
+
+#define cst_fmt         "%d"
+#define off_fmt         "%d"
+#define ilb_fmt         "I%03x%x"
+#define dlb_fmt         "_%d"
+#define hol_fmt         "hol%d"
+
+#define hol_off         "%d+hol%d"
+
+#define con_cst(x)      fprintf(codefile,".word\t%d\n",x)
+#define con_ilb(x)      fprintf(codefile,".word\t%s\n",x)
+#define con_dlb(x)      fprintf(codefile,".word\t%s\n",x)
+
+#define id_first        '_'
+#define BSS_INIT        0