Rename branch.

--HG--
branch : unlabeled-2.1.1-branch

first/local.h.src

@@ -0,0 +1,7 @@
+/* collection of options, selected by including or excluding 'defines' */
+
+/* Version number of the EM object code */
+#	define	VERSION		3	/* 16 bits number */
+
+/* The default machine used by ack, acc, apc */
+#	define	ACKM		"pdp"

mach/m68k2/cg/mach.c

@@ -0,0 +1,274 @@
+#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
+ *
+ */
+
+/*
+ * machine dependent back end routines for the Motorola 68000
+ */
+
+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 == 0)
+			w <<= 8;
+		part_word |= w;
+	} else {
+		assert(sz == 2);
+		part_word = w;
+	}
+	part_size += sz;
+}
+
+con_mult(sz) word sz; {
+
+	if (sz != 4)
+		fatal("bad icon/ucon size");
+	fprintf(codefile,".long %s\n",str);
+}
+
+con_float() {
+
+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");
+	}
+}
+
+#ifdef REGVARS
+
+
+regscore(off,size,typ,score,totyp)
+	long off;
+{
+	if (score == 0) return -1;
+	switch(typ) {
+		case reg_float:
+			return -1;
+		case reg_pointer:
+			if (size != 4 || totyp != reg_pointer) return -1;
+			score *= 2;
+			break;
+		case reg_loop:
+			score += 5;
+			/* fall through .. */
+		case reg_any:
+			if (size != 2 || totyp == reg_pointer) return -1;
+			break;
+	}
+	if (off >= 0) {
+		/* parameters must be initialised with an instruction
+		 * like "move.w 4(a6),d0", which costs 2 words.
+		 */
+		score -= 2;
+	}
+	score -= 1; /* take save/restore into account */
+	return score;
+}
+
+
+struct regsav_t {
+	char	*rs_reg;	/* e.g. "a3" or "d5" */
+	long	rs_off;		/* offset of variable */
+	int	rs_size;	/* 2 or 4 bytes */
+} regsav[9];
+
+
+int regnr;
+int nr_a_regs,nr_d_regs;
+int TEM_BSIZE;
+static long nlocals;
+
+prolog(n)
+{	nlocals = n; }
+
+
+i_regsave()
+{
+	regnr = 0;
+	nr_a_regs = 0;
+	nr_d_regs = 0;
+	TEM_BSIZE = 0;
+}
+
+#define MOVEM_LIMIT	2
+/* If #registers to be saved exceeds MOVEM_LIMIT, we
+* use the movem instruction to save registers; else
+* we simply use several move.l's.
+*/
+
+
+save()
+{
+	register struct regsav_t *p;
+	int i;
+
+	if (regnr > MOVEM_LIMIT) {
+		fprintf(codefile,"movem.l ");
+		for (p = regsav; ;) {
+			fprintf(codefile,"%s",p->rs_reg);
+			if (++p == &regsav[regnr]) break;
+			putc('/',codefile);
+		}
+		fprintf(codefile,",-(sp)\n");
+	} else {
+		/* Note that the order in which the registers are saved
+		 * is important; it is used by gto.s.
+		 */
+		for (i = 0; i < nr_a_regs; i++) {
+			fprintf(codefile,"move.l a%d,-(sp)\n",5-i);
+		}
+		for (i = 0; i < nr_d_regs; i++) {
+			fprintf(codefile,"move.l d%d,-(sp)\n",7-i);
+		}
+	}
+	/* Push a mask that indicates which registers were saved */
+	assert(nr_d_regs < 8 && nr_a_regs < 8);
+	if (nr_d_regs == 0 && nr_a_regs == 0) {
+		fprintf(codefile,"clr.w -(sp)\n");
+	} else {
+		fprintf(codefile,"move.w #%d,-(sp)\n",
+			nr_d_regs + (nr_a_regs<<3));
+	}
+
+	/* Compute AB - LB */
+	TEM_BSIZE = 4 * (nr_d_regs + nr_a_regs) + 10;
+
+	/* allocate space for local variables */
+	fprintf(codefile,"tst.b -%D(sp)\nlink\ta6,#-%D\n",nlocals+40,nlocals);
+
+	/* initialise register-parameters */
+	for (p = regsav; p < &regsav[regnr]; p++) {
+		if (p->rs_off >= 0) {
+			fprintf(codefile,"move.%c %ld(a6),%s\n",
+				(p->rs_size == 4 ? 'l' : 'w'),
+				p->rs_off + TEM_BSIZE,
+				p->rs_reg);
+		}
+	}
+}
+
+restr()
+{
+	register struct regsav_t *p;
+	int i;
+
+	fprintf(codefile,"unlk a6\n");
+	fprintf(codefile,"add.l #2,sp\n"); /* pop mask */
+	if (regnr > MOVEM_LIMIT)  {
+		fprintf(codefile,"movem.l (sp)+,");
+		for (p = regsav; ;) {
+			fprintf(codefile,"%s",p->rs_reg);
+			if (++p == &regsav[regnr]) break;
+			putc('/',codefile);
+		}
+		putc('\n',codefile);
+	} else {
+		for (i = nr_d_regs - 1; i >= 0; i--) {
+			fprintf(codefile,"move.l (sp)+,d%d\n",7-i);
+		}
+		for (i = nr_a_regs - 1; i >= 0; i--) {
+			fprintf(codefile,"move.l (sp)+,a%d\n",5-i);
+		}
+	}
+	fprintf(codefile,"rts\n");
+}
+
+
+f_regsave()
+{
+	save();
+}
+
+regsave(str,off,size)
+	char *str;
+	long off;
+{
+	assert (regnr < 9);
+	regsav[regnr].rs_reg = str;
+	if (str[0] == 'a') {
+		nr_a_regs++;
+	} else {
+		assert(str[0] == 'd');
+		nr_d_regs++;
+	}
+	regsav[regnr].rs_off = off;
+	regsav[regnr++].rs_size = size;
+	fprintf(codefile, "!Local %ld into %s\n",off,str);
+}
+
+regreturn()
+{
+	restr();
+}
+
+#endif
+
+#ifndef REGVARS
+
+prolog(nlocals) full nlocals; {
+
+	fprintf(codefile,"tst.b -%D(sp)\nlink\ta6,#-%D\n",nlocals+40,nlocals);
+}
+
+#endif
+
+
+
+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",        /* SEGTXT */
+	".data",        /* SEGCON */
+	".data",        /* SEGROM */
+	".bss"          /* SEGBSS */
+};

mach/m68k4/libem/dvi.s

@@ -0,0 +1,42 @@
+.define .dvi
+
+ ! signed long divide
+	.text
+.dvi:
+	movem.l	d0/d2,.savdvi
+	move.l	(sp)+,.retdvi
+	move.l	(sp)+,d0
+	move.l	(sp)+,d1
+	clr.l	d4
+	tst.l	d0	! divisor
+	bpl	1f
+	neg.l	d0
+	not	d4
+1:
+	tst.l	d1	! dividend
+	bpl	2f
+	neg.l	d1
+	not	d4
+	swap	d4
+	not	d4
+	swap	d4
+2:
+	move.l	d1,-(sp)
+	move.l	d0,-(sp)
+	jsr	.dvu
+	tst	d4
+	beq	5f
+	neg.l	d1	! quotient
+5:
+	tst.l	d4
+	bpl	6f
+	neg.l	d3	! remainder
+6:
+	movem.l .savdvi,d0/d2
+	move.l	.retdvi,-(sp)
+	rts
+.data
+.savdvi:	.space 8
+.retdvi:	.long 0
+.text
+.align 2

mach/pdp/cg/mach.c

@@ -1,256 +0,0 @@
-#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

@@ -1,46 +0,0 @@
-/* $Header$ */
-
-/* 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/ass/Makefile

@@ -0,0 +1,78 @@
+d=../..
+l=$d/mach/m68k2/lib
+h=$d/h
+ASS_PATH=$l/em_ass
+CC=pmds
+
+SEP_OPT=-n
+
+CFLAGS=-O -.c
+
+all:            ass$(SEP_OPT)
+
+clean:
+		-rm -f ass-i ass-n *.o maktab *.old asstb.c
+
+install :       all
+		cp ass$(SEP_OPT) $(ASS_PATH)
+
+cmp :           all
+		cmp ass$(SEP_OPT) $(ASS_PATH)
+
+lint:           ass00.c ass30.c ass40.c ass50.c ass60.c ass70.c \
+			ass80.c assci.c assda.c assrl.c asstb.c asscm.c
+		lint -hpvbx \
+			ass00.c ass30.c ass40.c ass50.c ass60.c ass70.c \
+			ass80.c assci.c assda.c assrl.c asstb.c asscm.c
+
+
+ass-n:       ass00.o ass30.o ass40.o ass50.o ass60.o ass70.o \
+			ass80.o assci.o assda.o assrl.o asstb.o asscm.o \
+			$l/em_data.a
+		$(CC) $(CFLAGS) -s -o ass-n \
+			ass00.o ass30.o ass40.o ass50.o ass60.o ass70.o \
+			ass80.o assci.o assda.o assrl.o asstb.o asscm.o \
+			$l/em_data.a >ass.symb
+
+ass-i:       ass00.o ass30.o ass40.o ass50.o ass60.o ass70.o \
+			ass80.o assci.o assda.o assrl.o asstb.o asscm.o \
+			$l/em_data.a
+		$(CC) -i $(CFLAGS) -o ass-i \
+			ass00.o ass30.o ass40.o ass50.o ass60.o ass70.o \
+			ass80.o assci.o assda.o assrl.o asstb.o asscm.o \
+			$l/em_data.a
+
+ass00.o ass40.o ass60.o ass70.o ass80.o assrl.o: \
+		$h/local.h $h/em_spec.h $h/as_spec.h \
+		$h/em_flag.h $h/arch.h ass00.h assex.h
+
+assci.o:        $h/local.h $h/em_spec.h $h/as_spec.h \
+		$h/em_flag.h $h/em_mes.h $h/em_pseu.h \
+		$h/em_ptyp.h $h/arch.h ass00.h assex.h
+
+ass30.o ass50.o : \
+		$h/local.h $h/em_spec.h $h/as_spec.h \
+		$h/em_flag.h ip_spec.h ass00.h assex.h
+
+ass80.o:        $h/em_path.h
+
+assda.o:        $h/local.h $h/em_spec.h $h/as_spec.h \
+		$h/em_flag.h $h/arch.h ass00.h
+
+asscm.o:        ass00.h
+
+asstb.o:        asstb.c
+
+asstb.c:        maktab ip_spec.t
+		maktab ip_spec.t asstb.c
+
+maktab:         maktab.c $h/em_spec.h ip_spec.h $h/em_flag.h \
+		$l/em_data.a
+		$(CC) -O -o maktab maktab.c $l/em_data.a
+
+opr:
+		make pr ^ opr
+
+pr:
+		@(pr ass00.h assex.h ip_spec.h ass?0.c ass[rcd]?.c \
+		maktab.c ; pr -3 ip_spec.t)