Rename branch.

--HG--
branch : hs-branch

mach/pdp/cg/mach.c

@@ -0,0 +1,256 @@
+#ifndef NORCSID
+static char rcsid[] = "$Header$";
+#endif
+
+/*
+ * (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
+ *
+ * Author: Hans van Staveren
+ */
+
+/*
+ * machine dependent back end routines for the PDP-11
+ */
+
+static char procnam[40] ;
+
+/* #define REGPATCH		/* save all registers in markblock */
+
+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 l;
+
+	if (sz != 4)
+		fatal("bad icon/ucon size");
+#ifdef ACK_ASS
+	fprintf(codefile,".long %s\n",str);
+#else
+	l = atol(str);
+	fprintf(codefile,"\t%o;%o\n",(int)(l>>16),(int)l);
+#endif
+}
+
+/*
+ * The next function is difficult to do when not running on a PDP 11 or VAX
+ * The strategy followed is to assume the code generator is running on a PDP 11
+ * unless the ACK_ASS define  is on.
+ * In the last case floating point constants are simply not handled
+ */
+
+con_float() {
+#ifdef ACK_ASS
+	static int been_here;
+
+	if (argval != 4 && argval != 8)
+		fatal("bad fcon size");
+	fprintf(codefile,".long\t");
+	if (argval == 8)
+		fprintf(codefile,"F_DUM,");
+	fprintf(codefile,"F_DUM\n");
+	if ( !been_here++)
+		fprintf(stderr,"Warning : dummy float-constant(s)\n");
+#else
+	double f;
+	register short *p,i;
+
+	if (argval != 4 && argval != 8)
+		fatal("bad fcon size");
+	f = atof(str);
+	p = (short *) &f;
+	i = *p++;
+	if (argval == 8) {
+		fprintf(codefile,"\t%o;%o;",i,*p++);
+		i = *p++;
+	}
+	fprintf(codefile,"\t%o;%o\n",i,*p++);
+#endif
+}
+
+#ifdef REGVARS
+
+char Rstring[10];
+full lbytes;
+struct regadm {
+	char *ra_str;
+	long  ra_off;
+} regadm[2];
+int n_regvars;
+
+regscore(off,size,typ,score,totyp) long off; {
+
+	if (size != 2)
+		return(-1);
+	score -= 1;	/* allow for save/restore */
+	if (off>=0)
+		score -= 2;
+	if (typ==reg_pointer)
+		score *= 17;
+	else if (typ==reg_loop)
+		score = 10*score+50;	/* Guestimate */
+	else
+		score *= 10;
+	return(score);	/* estimated # of words of profit */
+}
+
+i_regsave() {
+
+	Rstring[0] = 0;
+	n_regvars=0;
+}
+
+f_regsave() {
+	register i;
+
+	if (n_regvars==0 || lbytes==0) {
+#ifdef REGPATCH
+		fprintf(codefile,"mov r2,-(sp)\nmov r4,-(sp)\n");
+#endif
+		fprintf(codefile,"mov r5,-(sp)\nmov sp,r5\n");
+		if (lbytes == 2)
+			fprintf(codefile,"tst -(sp)\n");
+		else if (lbytes!=0)
+			fprintf(codefile,"sub $0%o,sp\n",lbytes);
+		for (i=0;i<n_regvars;i++)
+			fprintf(codefile,"mov %s,-(sp)\n",regadm[i].ra_str);
+	} else {
+		if (lbytes>6) {
+			fprintf(codefile,"mov $0%o,r0\n",lbytes);
+			fprintf(codefile,"jsr r5,PR%s\n",Rstring);
+		} else {
+			fprintf(codefile,"jsr r5,PR%d%s\n",lbytes,Rstring);
+		}
+	}
+	for (i=0;i<n_regvars;i++) {
+		if (regadm[i].ra_off>=0)
+			fprintf(codefile,"mov 0%lo(r5),%s\n",regadm[i].ra_off,
+						regadm[i].ra_str);
+		/* generate equates for access to registers */
+		fprintf(codefile,"~%s%s=%ld.\n",regadm[i].ra_str+1, procnam,
+				 regadm[i].ra_off) ;
+	}
+}
+
+regsave(regstr,off,size) char *regstr; long off; {
+
+	fprintf(codefile,"%c Local %ld into %s\n",COMMENTCHAR,off,regstr);
+/* commented away 
+#ifndef REGPATCH
+	fprintf(codefile,"mov %s,-(sp)\n",regstr);
+#endif
+	strcat(Rstring,regstr);
+	if (off>=0)
+		fprintf(codefile,"mov 0%lo(r5),%s\n",off,regstr);
+end of commented away */
+
+	strcat(Rstring,regstr);
+	regadm[n_regvars].ra_str = regstr;
+	regadm[n_regvars].ra_off = off;
+	n_regvars++;
+}
+
+regreturn() {
+
+#ifdef REGPATCH
+	fprintf(codefile,"jmp eret\n");
+#else
+	fprintf(codefile,"jmp RT%s\n",Rstring);
+#endif
+}
+
+#endif
+
+doplb(name) char *name ; {
+	register char *p, *q ;
+	p=procnam, q=name ;
+	while ( *p++ = *q++ ) ;
+	fprintf(codefile,"%s:\n",name) ;
+}
+
+prolog(nlocals) full nlocals; {
+
+#ifndef REGVARS
+#ifdef REGPATCH
+	fprintf(codefile,"mov r2,-(sp)\nmov r4,-(sp)\n");
+#endif
+	fprintf(codefile,"mov r5,-(sp)\nmov sp,r5\n");
+	if (nlocals == 0)
+		return;
+	if (nlocals == 2)
+		fprintf(codefile,"tst -(sp)\n");
+	else
+		fprintf(codefile,"sub $0%o,sp\n",nlocals);
+#else
+	lbytes = nlocals;
+#endif
+}
+
+dlbdlb(as,ls) string as,ls; {
+
+	if (strlen(as)+strlen(ls)+2<sizeof(labstr)) {
+		strcat(ls,":");
+		strcat(ls,as);
+	} else
+		fatal("too many consecutive labels");
+}
+
+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) ;
+#ifdef ACK_ASS
+				fprintf(codefile,".define %s\n",argstr) ;
+#else
+				fprintf(codefile,".globl %s\n",argstr) ;
+#endif
+				break ;
+			}
+		}
+	default :
+		while ( getarg(any_ptyp) != sp_cend ) ;
+		break ;
+	}
+}
+
+char    *segname[] = {
+	".text",        /* SEGTXT */
+	".data",        /* SEGCON */
+	".data",        /* SEGROM */
+	".bss"          /* SEGBSS */
+};

mach/pdp/cg/mach.h

@@ -0,0 +1,46 @@
+/* $Header$ */
+
+/* The next define switches between codegeneration for an ACK assembler
+ * or for the standard UNIX V7 assembler.
+ * If on code is generated for the ACK assembler.
+ */
+/* #define ACK_ASS	/* code for ACK assembler */
+
+#ifdef ACK_ASS
+#define COMMENTCHAR '!'
+#define ex_ap(y)	fprintf(codefile,".extern %s\n",y)
+#else
+#define COMMENTCHAR '/'
+#define ex_ap(y)	fprintf(codefile,".globl %s\n",y)
+#endif
+#define in_ap(y)	/* nothing */
+
+#define newplb(x)	doplb(x)
+#define newilb(x)	fprintf(codefile,"%s:\n",x)
+#define newdlb(x)	fprintf(codefile,"%s:\n",x)
+#ifdef ACK_ASS
+#define newlbss(l,x)	fprintf(codefile,"%s:.space 0%o\n",l,x);
+#else
+#define newlbss(l,x)	fprintf(codefile,"%s:.=.+0%o\n",l,x);
+#endif
+
+#define cst_fmt		"$0%o"
+#define off_fmt		"0%o"
+#define ilb_fmt		"I%03x%x"
+#define dlb_fmt		"_%d"
+#define	hol_fmt		"hol%d"
+
+#define hol_off		"0%o+hol%d"
+
+#ifdef ACK_ASS
+#define con_cst(x)	fprintf(codefile,".short 0%o\n",x)
+#define con_ilb(x)	fprintf(codefile,".short %s\n",x)
+#define con_dlb(x)	fprintf(codefile,".short %s\n",x)
+#else
+#define con_cst(x)	fprintf(codefile,"0%o\n",x)
+#define con_ilb(x)	fprintf(codefile,"%s\n",x)
+#define con_dlb(x)	fprintf(codefile,"%s\n",x)
+#endif
+
+#define id_first	'_'
+#define BSS_INIT	0

util/cmisc/tabgen.c

@@ -1,339 +0,0 @@
-/*
- * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
- * See the copyright notice in the ACK home directory, in the file "Copyright".
- */
-/*
-	chtabgen - character table generator 
-
-	Author: Erik Baalbergen (..tjalk!erikb)
-	Many mods by Ceriel Jacobs
-*/
-
-#include <stdio.h> 
-
-#ifndef NORCSID
-static char *RcsId = "$Id$";
-#endif
-
-#define MAXBUF	256
-#define MAXTAB 10000
-#define COMCOM	'-'
-#define FILECOM	'%'
-
-int InputForm = 'c';	/* default input format (and, currently, only one) */
-char OutputForm[MAXBUF] = "%s,\n";
-			/* format for spitting out a string */
-char *Table[MAXTAB];
-char *ProgCall;		/* callname of this program */
-int TabSize = 128;	/* default size of generated table */
-char *InitialValue;	/* initial value of all table entries */
-
-extern char *malloc(), *strcpy();
-
-main(argc, argv)
-	char *argv[];
-{
-
-	ProgCall = *argv++;
-	argc--;
-	while (argc-- > 0) {
-		if (**argv == COMCOM) {
-			option(*argv++);
-		}
-		else {
-			if (! process(*argv++, InputForm)) {
-				exit(1);
-			}
-		}
-	}
-	exit(0);
-	/*NOTREACHED*/
-}
-
-char *
-Salloc(s)
-	char *s;
-{
-	char *ns = malloc((unsigned)strlen(s) + 1);
-
-	if (ns) {
-		strcpy(ns, s);
-	}
-	else {
-		fprintf(stderr, "%s: out of memory\n", ProgCall);
-		exit(1);
-	}
-	return ns;
-}
-
-option(str)
-	char *str;
-{
-	/*	note that *str indicates the source of the option:
-		either COMCOM (from command line) or FILECOM (from a file).
-	*/
-	switch (*++str) {
-
-	case ' ':	/* command */
-	case '\t':
-	case '\0':
-		break;
-	case 'I':	/* for future extension */
-		InputForm = *++str;
-		break;
-	case 'f':	/* input from file ... */
-		if (*++str == '\0') {
-			fprintf(stderr, "%s: -f: name expected\n", ProgCall);
-			exit(1);
-		}
-		DoFile(str);
-		break;
-	case 'F':	/* new output format string */
-		sprintf(OutputForm, "%s\n", ++str);
-		break;
-	case 'T':	/* insert text literally */
-		printf("%s\n", ++str);
-		break;
-	case 'p':	/* print table */
-		PrintTable();
-		break;
-	case 'C':	/* clear table */
-		InitTable((char *)0);
-		break;
-	case 'i':	/* initialize table with given value */
-		if (*++str == '\0') {
-			InitTable((char *)0);
-		}
-		else	InitTable(str);
-		break;
-	case 'S':
-	{
-		int i = atoi(++str);
-
-		if (i <= 0 || i > MAXTAB) {
-			fprintf(stderr, "%s: size would exceed maximum\n",
-				ProgCall);
-		}
-		else {
-			TabSize = i;
-		}
-		break;
-	}
-	default:
-		fprintf(stderr, "%s: bad option -%s\n", ProgCall, str);
-	}
-}
-
-InitTable(ival)
-	char *ival;
-{
-	int i;
-
-	for (i = 0; i < TabSize; i++) {
-		Table[i] = 0;
-	}
-	InitialValue = 0;
-	if (ival) {
-		InitialValue = Salloc(ival);
-	}
-}
-
-PrintTable()
-{
-	int i;
-
-	for (i = 0; i < TabSize; i++) {
-		if (Table[i]) {
-			printf(OutputForm, Table[i]);
-		}
-		else if (InitialValue) {
-			printf(OutputForm, InitialValue);
-		}
-		else {
-			printf(OutputForm, "0");
-		}
-	}
-}
-
-int
-process(str, format)
-	char *str;
-{
-	char *cstr = str;
-	char *Name = cstr;	/* overwrite original string!	*/
-
-	/* strip of the entry name
-	*/
-	while (*str && *str != ':') {
-		if (*str == '\\') {
-			++str;
-		}
-		*cstr++ = *str++;
-	}
-
-	if (*str != ':') {
-		fprintf(stderr, "%s: bad specification: \"%s\", ignored\n",
-			ProgCall, Name);
-		return 0;
-	}
-	*cstr = '\0';
-	str++;
-
-	switch (format) {
-
-	case 'c':
-		return c_proc(str, Name);
-	default:
-		fprintf(stderr, "%s: bad input format\n", ProgCall);
-	}
-	return 0;
-}
-
-c_proc(str, Name)
-	char *str;
-	char *Name;
-{
-	int ch, ch2;
-	int quoted();
-	char *name = Salloc(Name);
-
-	while (*str)	{
-		if (*str == '\\')	{
-			ch = quoted(&str);
-		}
-		else	{
-			ch = *str++ & 0377;
-		}
-		if (*str == '-')	{
-			if (*++str == '\\')	{
-				ch2 = quoted(&str);
-			}
-			else	{
-				if (ch2 = (*str++ & 0377));
-				else str--;
-			}
-			if (ch > ch2) {
-				fprintf(stderr, "%s: bad range\n", ProgCall);
-				return 0;
-			}
-			while (ch <= ch2) {
-				if (! setval(ch, name)) return 0;
-				ch++;
-			}
-		}
-		else	{
-			if (! setval(ch, name)) return 0;
-		}
-	}
-	return 1;
-}
-
-int
-setval(ch, nm)
-	char *nm;
-{
-	char **p = &Table[ch];
-
-	if (ch < 0 || ch >= TabSize) {
-		fprintf(stderr, "Illegal index: %d\n", ch);
-		return 0;
-	}
-	if (*(p = &Table[ch])) {
-		fprintf(stderr, "Warning: redefinition of index %d\n", ch);
-	}
-	*p = nm;
-	return 1;
-}
-
-int
-quoted(pstr)
-	char **pstr;
-{
-	int ch;
-	int i;
-	char *str = *pstr;
-
-	if ((*++str >= '0') && (*str <= '9'))	{
-		ch = 0;
-		for (i = 0; i < 3; i++)	{
-			ch = 8 * ch + (*str - '0');
-			if (*++str < '0' || *str > '9')
-				break;
-		}
-	}
-	else	{
-		switch (*str++)	{
-		case 'n':
-			ch = '\n';
-			break;
-		case 't':
-			ch = '\t';
-			break;
-		case 'b':
-			ch = '\b';
-			break;
-		case 'r':
-			ch = '\r';
-			break;
-		case 'f':
-			ch = '\f';
-			break;
-		case 'v':
-			ch = 013;
-			break;
-		default :
-			ch = *(str - 1);
-			break;
-		}
-	}
-	*pstr = str;
-	return ch & 0377;
-}
-
-char *
-getline(s, n, fp)
-	char *s;
-	FILE *fp;
-{
-	int c = getc(fp);
-	char *str = s;
-
-	while (n--) {
-		if (c == EOF) {
-			return NULL;
-		}
-		else
-		if (c == '\n') {
-			*str++ = '\0';
-			return s;
-		}
-		*str++ = c;
-		c = getc(fp);
-	}
-	s[n - 1] = '\0';
-	return s;
-}
-
-#define BUFSIZE 1024
-
-DoFile(name)
-	char *name;
-{
-	char text[BUFSIZE];
-	FILE *fp;
-
-	if ((fp = fopen(name, "r")) == NULL) {
-		fprintf(stderr, "%s: cannot read file %s\n", ProgCall, name);
-		exit(1);
-	}
-	while (getline(text, BUFSIZE, fp) != NULL) {
-		if (text[0] == FILECOM) {
-			option(text);
-		}
-		else {
-			if (! process(text, InputForm)) {
-				exit(1);
-			}
-		}
-	}
-}