X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=as%2Fmcs51%2Fasmain.c;h=1a506fbf8ca84c0ba7e6df94e1478bab13c2b288;hb=6db7b4e474eae4e4113ce4f6e8bdad4ad44e94fd;hp=42c70a5d2cd99dc6e664bcd83f68cd02c272c311;hpb=554b80355adbbbd8436bdb0dd448ef3e956c0871;p=fw%2Fsdcc

diff --git a/as/mcs51/asmain.c b/as/mcs51/asmain.c
index 42c70a5d..1a506fbf 100644
--- a/as/mcs51/asmain.c
+++ b/as/mcs51/asmain.c
@@ -11,13 +11,13 @@
  * 29-Oct-97 JLH pass ";!" comments to output file
  */
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <setjmp.h>
 #include <string.h>
-#include <alloc.h>
+
 #include "asm.h"
 
-extern VOID machine(struct mne *);
 /*)Module	asmain.c
  *
  *	The module asmain.c includes the command argument parser,
@@ -81,7 +81,7 @@ extern VOID machine(struct mne *);
  *		int	fflag		-f(f), relocations flagged flag
  *		int	flevel		IF-ELSE-ENDIF flag will be non
  *					zero for false conditional case
- *		addr_t	fuzz		tracks pass to pass changes in the
+ *		Addr_T	fuzz		tracks pass to pass changes in the
  *					address of symbols caused by
  *					variable length instruction formats
  *		int	gflag		-g, make undefined symbols global flag
@@ -129,7 +129,7 @@ extern VOID machine(struct mne *);
  *		VOID	diag()		assubr.c
  *		VOID	err()		assubr.c
  *		int	fprintf()	c-library
- *		int	getline()	aslex.c
+ *		int	as_getline()	aslex.c
  *		VOID	list()		aslist.c
  *		VOID	lstsym()	aslist.c
  *		VOID	minit()		___mch.c
@@ -147,6 +147,9 @@ extern VOID machine(struct mne *);
  *		REL, LST, and/or SYM files may be generated.
  */
 
+int fatalErrors=0;
+char relFile[128];
+
 int
 main(argc, argv)
 char *argv[];
@@ -241,8 +244,11 @@ char *argv[];
 			if (inpfil == 0) {
 				if (lflag)
 					lfp = afile(p, "lst", 1);
-				if (oflag)
-					ofp = afile(p, "rel", 1);
+				if (oflag) {
+				  ofp = afile(p, "rel", 1);
+				  // save the file name if we have to delete it on error
+				  strcpy(relFile,afn);
+				}
 				if (sflag)
 					tfp = afile(p, "sym", 1);
 			}
@@ -282,7 +288,7 @@ char *argv[];
 		dot.s_area = &dca;
 		symp = &dot;
 		minit();
-		while (getline()) {
+		while (as_getline()) {
 			cp = cb;
 			cpt = cbt;
 			ep = eb;
@@ -317,8 +323,10 @@ char *argv[];
 	if (lflag) {
 		lstsym(lfp);
 	}
-	asexit(aserr);
-	return 0;
+	//printf ("aserr: %d\n", aserr);
+	//printf ("fatalErrors: %d\n", fatalErrors);
+	asexit(fatalErrors);
+	return 0; // hush the compiler
 }
 
 /*)Function	VOID	asexit(i)
@@ -363,7 +371,11 @@ int i;
 	/*for (j=0; j<MAXINC && ifp[j] != NULL; j++) {
 		fclose(ifp[j]);
 		}*/
-
+	if (i) {
+	  // remove output file
+	  printf ("removing %s\n", relFile);
+	  remove(relFile);
+	}
 	exit(i);
 }
 
@@ -398,7 +410,7 @@ int i;
  *					ASCII character
  *		int	flevel		IF-ELSE-ENDIF flag will be non
  *					zero for false conditional case
- *		addr_t	fuzz		tracks pass to pass changes in the
+ *		Addr_T	fuzz		tracks pass to pass changes in the
  *					address of symbols caused by
  *					variable length instruction formats
  *		int	ifcnd[]		array of IF statement condition
@@ -410,7 +422,7 @@ int i;
  *		int	incline[]	current include file line
  *		int	incfil		current file handle index
  *					for include files
- *		addr_t	laddr		address of current assembler line
+ *		Addr_T	laddr		address of current assembler line
  *					or value of .if argument
  *		int	lmode		listing mode
  *		int	lop		current line number on page
@@ -425,7 +437,7 @@ int i;
  *		int	tlevel		current conditional level
  *
  *	functions called:
- *		addr_t	absexpr()	asexpr.c
+ *		Addr_T	absexpr()	asexpr.c
  *		area *	alookup()	assym.c
  *		VOID	clrexpr()	asexpr.c
  *		int	digit()		asexpr.c
@@ -439,7 +451,7 @@ int i;
  *		char	getnb()		aslex.c
  *		VOID	getst()		aslex.c
  *		sym *	lookup()	assym.c
- *		VOID	machin()	___mch.c
+ *		VOID	machine()	___mch.c
  *		mne *	mlookup()	assym.c
  *		int	more()		aslex.c
  *		VOID *	new()		assym.c
@@ -467,9 +479,10 @@ asmbl()
 	struct expr e1;
 	char id[NCPS];
 	char opt[NCPS];
-	char fn[FILSPC];
+	char fn[PATH_MAX];
 	char *p;
 	int d, n, uaf, uf;
+	static struct area *abs_ap; /* pointer to current absolute area structure */
 
 	laddr = dot.s_addr;
 	lmode = SLIST;
@@ -543,7 +556,7 @@ loop:
 		goto loop;
 	}
 	/*
-	 * If the first character is a letter then assume a lable,
+	 * If the first character is a letter then assume a label,
 	 * symbol, assembler directive, or assembler mnemonic is
 	 * being processed.
 	 */
@@ -787,7 +800,7 @@ loop:
 		break;
 
 	case S_MODUL:
-		getst(id, -1);
+	        getst(id, getnb()); // a module can start with a digit
 		if (pass == 0) {
 			if (module[0]) {
 				err('m');
@@ -798,6 +811,20 @@ loop:
 		lmode = SLIST;
 		break;
 
+	case S_OPTSDCC:
+		p = optsdcc;
+		if ((c = getnb()) != 0) {
+			do {
+				if (p < &optsdcc[NINPUT-1])
+					*p++ = c;
+			} while ((c = get()) != 0);
+		}
+		*p = 0;
+		unget(c);
+		lmode = SLIST;
+        /*if (pass == 0) printf("optsdcc=%s\n", optsdcc);*/
+        break;
+
 	case S_GLOBL:
 		do {
 			getid(id, -1);
@@ -809,7 +836,7 @@ loop:
 		break;
 
 	case S_DAREA:
-	        getid(id, -1);
+		getid(id, -1);
 		uaf = 0;
 		uf  = A_CON|A_REL;
 		if ((c = getnb()) == '(') {
@@ -831,10 +858,6 @@ loop:
 		if ((ap = alookup(id)) != NULL) {
 			if (uaf && uf != ap->a_flag)
 				err('m');
-                        if (ap->a_flag & A_OVR) {
-				ap->a_size = 0; 
-                                ap->a_fuzz=0;
-			}
 		} else {
 			ap = (struct area *) new (sizeof(struct area));
 			ap->a_ap = areap;
@@ -847,17 +870,31 @@ loop:
 		}
 		newdot(ap);
 		lmode = SLIST;
+		if (dot.s_area->a_flag & A_ABS)
+			abs_ap = ap;
 		break;
 
 	case S_ORG:
 		if (dot.s_area->a_flag & A_ABS) {
-			outall();
-			laddr = dot.s_addr = absexpr();
+			char buf[NCPS];
+			laddr = absexpr();
+			sprintf(buf, "%s%x", abs_ap->a_id, laddr);
+			if ((ap = alookup(buf)) == NULL) {
+				ap = (struct area *) new (sizeof(struct area));
+				*ap = *areap;
+				ap->a_ap = areap;
+				strncpy(ap->a_id, buf, NCPS);
+				ap->a_ref = areap->a_ref + 1;
+				ap->a_size = 0;
+				ap->a_fuzz = 0;
+				areap = ap;
+			}
+			newdot(ap);
+			lmode = ALIST;
+			dot.s_addr = dot.s_org = laddr;
 		} else {
 			err('o');
 		}
-		outall();
-		lmode = ALIST;
 		break;
 
 	case S_RADIX:
@@ -899,14 +936,14 @@ loop:
 		d = getnb();
 		p = fn;
 		while ((c = get()) != d) {
-			if (p < &fn[FILSPC-1]) {
+			if (p < &fn[PATH_MAX-1]) {
 				*p++ = c;
 			} else {
 				break;
 			}
 		}
 		*p = 0;
-		if (++incfil == MAXINC ||
+		if ((++incfil == MAXINC) ||
 		   (ifp[incfil] = fopen(fn, "r")) == NULL) {
 			--incfil;
 			err('i');
@@ -923,12 +960,12 @@ loop:
 		{
 		    getst(id, -1);
 		    
-		    if (!strcmpi(id, "on"))
+		    if (!as_strcmpi(id, "on"))
 		    {
 		    	/* Quick sanity check: size of 
-		    	 * addr_t must be at least 24 bits.
+		    	 * Addr_T must be at least 24 bits.
 		    	 */
-		    	if (sizeof(addr_t) < 3)
+		    	if (sizeof(Addr_T) < 3)
 		    	{
 		    	    warnBanner();
 		    	    fprintf(stderr,
@@ -941,7 +978,7 @@ loop:
 		    	    flat24Mode = 1;
 		    	}
 		    }
-		    else if (!strcmpi(id, "off"))
+		    else if (!as_strcmpi(id, "off"))
 		    {
 		        flat24Mode = 0;
 		    }
@@ -1030,30 +1067,36 @@ char *fn;
 char *ft;
 int wf;
 {
-	register char *p1, *p2, *p3;
+	register char *p2, *p3;
 	register int c;
 	FILE *fp;
 
-	p1 = fn;
 	p2 = afn;
 	p3 = ft;
-	while ((c = *p1++) != 0 && c != FSEPX) {
-		if (p2 < &afn[FILSPC-4])
-			*p2++ = c;
-	}
+
+	strcpy (afn, fn);
+	p2 = strrchr (afn, FSEPX);		// search last '.'
+	if (!p2)
+		p2 = afn + strlen (afn);
+	if (p2 > &afn[PATH_MAX-4])		// truncate filename, if it's too long
+		p2 = &afn[PATH_MAX-4];
 	*p2++ = FSEPX;
-	if (*p3 == 0) {
-		if (c == FSEPX) {
-			p3 = p1;
-		} else {
-			p3 = dsft;
-		}
+
+	// choose a file-extension
+	if (*p3 == 0) {					// extension supplied?
+		p3 = strrchr (fn, FSEPX);	// no: extension in fn?
+		if (p3)
+			++p3;
+		else
+			p3 = dsft;					// no: default extension
 	}
-	while ((c = *p3++) != 0) {
-		if (p2 < &afn[FILSPC-1])
+
+	while ((c = *p3++) != 0) {		// strncpy
+		if (p2 < &afn[PATH_MAX-1])
 			*p2++ = c;
 	}
 	*p2++ = 0;
+
 	if ((fp = fopen(afn, wf?"w":"r")) == NULL) {
 		fprintf(stderr, "%s: cannot %s.\n", afn, wf?"create":"open");
 		asexit(1);
@@ -1078,7 +1121,7 @@ int wf;
  *
  *	global variables:
  *		sym	dot		defined as sym[0]
- *		addr_t	fuzz		tracks pass to pass changes in the
+ *		Addr_T	fuzz		tracks pass to pass changes in the
  *					address of symbols caused by
  *					variable length instruction formats
  *
@@ -1096,18 +1139,42 @@ register struct area *nap;
 	register struct area *oap;
 
 	oap = dot.s_area;
+	/* fprintf (stderr, "%s dot.s_area->a_size: %d dot.s_addr: %d\n",
+	     oap->a_id, dot.s_area->a_size, dot.s_addr); */
 	oap->a_fuzz = fuzz;
-	oap->a_size = dot.s_addr;
-	fuzz = nap->a_fuzz;
+	if (oap->a_flag & A_OVR) {
+	  // the size of an overlay is the biggest size encountered
+	  if (oap->a_size < dot.s_addr) {
+	    oap->a_size = dot.s_addr;
+	  }
+	} else if (oap->a_flag & A_ABS) {
+	  oap->a_addr = dot.s_org;
+	  oap->a_size += dot.s_addr - dot.s_org;
+	  dot.s_addr = dot.s_org = 0;
+	} else {
+	  oap->a_addr = 0;
+	  oap->a_size = dot.s_addr;
+	}
+	if (nap->a_flag & A_OVR) {
+	  // a new overlay starts at 0, no fuzz
+	  dot.s_addr = 0;
+	  fuzz = 0;
+	} else if (nap->a_flag & A_ABS) {
+	  // a new absolute starts at org, no fuzz
+	  dot.s_addr = dot.s_org;
+	  fuzz = 0;
+	} else {
+	  dot.s_addr = nap->a_size;
+	  fuzz = nap->a_fuzz;
+	}
 	dot.s_area = nap;
-	dot.s_addr = nap->a_size;
 	outall();
 }
 
 /*)Function	VOID	phase(ap, a)
  *
  *		area *	ap		pointer to area
- *		addr_t	a		address in area
+ *		Addr_T	a		address in area
  *
  *	Function phase() compares the area ap and address a
  *	with the current area dot.s_area and address dot.s_addr
@@ -1131,7 +1198,7 @@ register struct area *nap;
 VOID
 phase(ap, a)
 struct area *ap;
-addr_t a;
+Addr_T a;
 {
 	if (ap != dot.s_area || a != dot.s_addr)
 		err('p');
@@ -1147,9 +1214,9 @@ char *usetxt[] = {
 	"  a    all user symbols made global",
 	"  l    create list   output file1[LST]",
 	"  o    create object output file1[REL]",
-        "  s    create symbol output file1[SYM]",
-        "  p    disable listing pagination",
-        "  f    flag relocatable references by `    in listing file",
+	"  s    create symbol output file1[SYM]",
+	"  p    disable listing pagination",
+	"  f    flag relocatable references by `    in listing file",
 	" ff    flag relocatable references by mode in listing file",
 	"",
 	0