many modyfications in search for more speed

util/ceg/ce_back/obj_back/back.h

@@ -26,6 +26,8 @@ extern holno, procno;
 
 #define swtxt()		switchseg( SEGTXT)
 
+#define switchseg(seg)	if ((seg) != cur_seg) swtchsg(seg); else
+
 #define 	PC_REL  	1
 #define 	ABSOLUTE 	!PC_REL
 
@@ -34,8 +36,7 @@ extern holno, procno;
 
 #define MAXTEXT		4096
 #define MAXDATA		2048
-#define	MAXRELO		100
-#define	MAXNAME		100
-#define	MAXSTRING	2048
-#define MAXHASH		256
+#define	MAXRELO		512
+#define	MAXNAME		512
+#define	MAXSTRING	4096
 

util/ceg/ce_back/obj_back/common.c

@@ -9,9 +9,9 @@ arith n;
 	register struct outname *nm = &symbol_table[Label];
 
 	if (label_waiting && (nm->on_type & S_EXT)) {
-		symbol_table[Label].on_type |= S_COM | (S_MIN+SEGBSS);
-		if (n > symbol_table[Label].on_valu) {
-			symbol_table[Label].on_valu = n;
+		nm->on_type |= S_COM | (S_MIN+SEGBSS);
+		if (n > nm->on_valu) {
+			nm->on_valu = n;
 		}
 		label_waiting = 0;
 		return;

util/ceg/ce_back/obj_back/con2.c

@@ -6,11 +6,11 @@ TWO_BYTES w;
 {
 	if ((_data_cnt -= 2) < 0) mem_data();
 #ifdef BYTES_REVERSED
-	*data++ = ( unsigned short)w>>8;
+	*data++ = w>>8;
 	*data++ = w;
 #else
 	*data++ = w;
-	*data++ = ( unsigned short)w>>8;
+	*data++ = w>>8;
 #endif
 }
 

util/ceg/ce_back/obj_back/con4.c

@@ -1,14 +1,22 @@
 #include "mach.h"
+#include "back.h"
+
+#ifdef BYTES_REVERSED
+#define con2(w)		{ *data++ = ((w) >> 8); *data++ = (w);}
+#else
+#define con2(w)		{ *data++ = (w); *data++ = ((w)>>8);}
+#endif
 
 con4( l)
 FOUR_BYTES l;
 {
+	if ((_data_cnt -= 4) < 0) mem_data();
 #ifdef WORDS_REVERSED
-	con2( (short) ((unsigned long)l>>16));
-	con2( (short) l);
+	con2( (int)(l>>16));
+	con2( (int) l);
 #else
-	con2( (short) l);
-	con2( (short) ((unsigned long)l>>16));
+	con2( (int) l);
+	con2( (int) (l>>16));
 #endif
 }
 

util/ceg/ce_back/obj_back/data.c

@@ -1,5 +1,6 @@
 #include <system.h>
 #include <out.h>
+#include "data.h"
 #include "mach.h"
 
 /* Global datastructures : 
@@ -36,26 +37,17 @@ long 		nbss = 0, size_text, size_data, size_reloc, size_symbol,
 		size_string, _text_cnt, _data_cnt;
 
 
-put1(sect,addr,b)
-char *sect;
-long addr;
-char b;
-{
-	sect[addr] = b;
-}
-
-
 put2(sect,addr,w)
 char *sect;
 long addr;
 int w;
 {
 #ifdef BYTES_REVERSED
-	put1(sect,addr,(char) (w>>8));
-	put1(sect,addr+1,(char) w);
+	put1(sect, addr, (w>>8));
+	put1(sect, addr+1, w);
 #else
-	put1(sect,addr,(char) w);
-	put1(sect,addr+1,(char) (w>>8));
+	put1(sect, addr, w);
+	put1(sect, addr+1, (w>>8));
 #endif
 }
 
@@ -66,37 +58,23 @@ long addr;
 long l;
 {
 #ifdef WORDS_REVERSED
-	put2(sect,addr,(short) (l>>16));
-	put2(sect,addr+2,(short) l);
+	put2(sect,addr,(int) (l>>16));
+	put2(sect,addr+2,(int) l);
 #else
-	put2(sect,addr,(short) l);
-	put2(sect,addr+2,(short) (l>>16));
+	put2(sect,addr,(int) l);
+	put2(sect,addr+2,(int) (l>>16));
 #endif
 }
 
-
-char get1( sect, addr)
+int get2(sect,addr)
 char *sect;
 long addr;
 {
-	return( sect[addr]);
-}
-
-
-short get2(sect,addr)
-char *sect;
-long addr;
-{
-	short h,l;
-
 #ifdef BYTES_REVERSED
-	h = sect[addr];
-	l = sect[addr+1];
+	return (get1(sect,addr) << 8) | (get1(sect,addr+1) & 255);
 #else
-	l = sect[addr];
-	h = sect[addr+1];
+	return (get1(sect,addr+1) << 8) | (get1(sect,addr) & 255);
 #endif
-	return( ( h << 8) | ( l & 255));
 }
 
 	
@@ -104,14 +82,9 @@ long get4(sect,addr)
 char *sect;
 long addr;
 {
-	long l,h;
-
 #ifdef WORDS_REVERSED
-	h = get2(sect,addr);
-	l = get2(sect,addr+2);
+	return ((long)get2(sect,addr) << 16) | get2(sect, addr+2);
 #else
-	l = get2(sect,addr);
-	h = get2(sect,addr+2);
+	return ((long)get2(sect,addr+2) << 16) | get2(sect, addr);
 #endif
-	return( ( h << 16) | ( l & 65535L));
 }

util/ceg/ce_back/obj_back/data.h

@@ -1,6 +1,7 @@
 /* The global datastructures (see "data.c"). */
 
 extern long 	cur_value();
+extern long	get4();
 
 extern int 	cur_seg;
 
@@ -13,3 +14,5 @@ extern char             *text_area, *data_area, *string_area;
 extern struct outrelo	*reloc_info, *relo;
 extern struct outname	*symbol_table;
 
+#define put1(buf, off, w)	((buf)[off] = (w))
+#define get1(buf, off)		((buf)[off])

util/ceg/ce_back/obj_back/gen2.c

@@ -2,15 +2,30 @@
 #include "mach.h"
 #include "back.h"
  
-gen2( c)
-TWO_BYTES c;
+gen2( w)
+TWO_BYTES w;
 {
 	switch ( cur_seg) {
-		case SEGTXT :  text2( c);
+		case SEGTXT :
+				if ((_text_cnt -= 2) < 0) mem_text();
+#ifdef BYTES_REVERSED
+				*text++ = w>>8;
+				*text++ = w;
+#else
+				*text++ = w;
+				*text++ = w>>8;
+#endif
 			        return;
-		case SEGCON  : con2( c);
-			       return;
-		case SEGROM  : rom2( c);
+		case SEGCON  :
+		case SEGROM  :
+				if ((_data_cnt -= 2) < 0) mem_data();
+#ifdef BYTES_REVERSED
+				*data++ = w>>8;
+				*data++ = w;
+#else
+				*data++ = w;
+				*data++ = w>>8;
+#endif
 			       return;
 		case SEGBSS  : bss( 2);
 			       return;

util/ceg/ce_back/obj_back/gen4.c

@@ -1,16 +1,38 @@
 #include <system.h>
 #include "mach.h"
 #include "back.h"
+#ifdef BYTES_REVERSED
+#define text2(w)	{ *text++ = ((w) >> 8); *text++ = (w);}
+#define con2(w)		{ *data++ = ((w) >> 8); *data++ = (w);}
+#else
+#define text2(w)	{ *text++ = (w); *text++ = ((w)>>8);}
+#define con2(w)		{ *data++ = (w); *data++ = ((w)>>8);}
+#endif
  
-gen4( c)
-FOUR_BYTES c;
+gen4( l)
+FOUR_BYTES l;
 {
 	switch ( cur_seg) {
-		case SEGTXT :  text4( c);
+		case SEGTXT :
+			if ((_text_cnt -= 4) < 0) mem_text();
+#ifdef WORDS_REVERSED
+			text2( (int) (l>>16));
+			text2( (int) l);
+#else
+			text2( (int) l);
+			text2( (int) (l>>16));
+#endif
 			return;
-		case SEGCON  : con4( c);
-			       return;
-		case SEGROM  : rom4( c);
+		case SEGCON  :
+		case SEGROM  :
+			if ((_data_cnt -= 4) < 0) mem_data();
+#ifdef WORDS_REVERSED
+			con2( (int)(l>>16));
+			con2( (int) l);
+#else
+			con2( (int) l);
+			con2( (int) (l>>16));
+#endif
 			return;
 		case SEGBSS  : bss( 4);
 			       return;

util/ceg/ce_back/obj_back/mysprint.c

@@ -3,9 +3,12 @@
 #include <varargs.h>
 
 /* Mysprint() stores the string directly in the string_arae. This saves
- * a copy action.
+ * a copy action. It is assumed that the strings stored in the string-table
+ * are never longer than MAXSTRLEN bytes.
  */
 
+#define MAXSTRLEN	1024
+
 /*VARARGS*/
 int mysprint(va_alist)
 	va_dcl
@@ -16,7 +19,7 @@ int mysprint(va_alist)
 
 	va_start(args);
 	fmt = va_arg(args, char *);
-	while (string + 1024 - string_area > size_string)
+	while (string + MAXSTRLEN - string_area > size_string)
 		mem_string();
 	retval = _format(string, fmt, args);
 	string[retval] = '\0';

util/ceg/ce_back/obj_back/reloc1.c

@@ -8,26 +8,36 @@
  * absolute.
  */
 
+#ifdef WORDS_REVERSED
+#ifdef BYTES_REVERSED
+#define RRR (RELO1|RELBR|RELWR)
+#else
+#define RRR (RELO1|RELWR)
+#endif
+#else
+#ifdef BYTES_REVERSED
+#define RRR (RELO1|RELBR)
+#else
+#define RRR (RELO1)
+#endif
+#endif
+
 reloc1( sym, off, pcrel)
 char *sym;
 arith off;
 int pcrel;
 {
+	register struct outrelo *r;
+
 	if ( relo - reloc_info >= size_reloc)
 		mem_relo();
 
-	relo->or_type = RELO1;
-#ifdef BYTES_REVERSED			
-	relo->or_type |= RELBR;
-#endif
-#ifdef WORDS_REVERSED
-	relo->or_type |= RELWR;
-#endif
-	relo->or_type |= ( pcrel) ? RELPC : S_UND;
-	relo->or_sect =  S_MIN + conv_seg( cur_seg);
-	relo->or_nami = find_sym(sym, REFERENCE);
-	relo->or_addr = cur_value();
-	gen1( (pcrel) ? off - ( cur_value() + 1) : off);
+	r = relo;
+	r->or_type |= ( pcrel) ? RELPC|RRR : RRR;
+	r->or_sect =  S_MIN + conv_seg( cur_seg);
+	r->or_nami = find_sym(sym, REFERENCE);
+	r->or_addr = cur_value();
+	gen1( (pcrel) ? off - ( r->or_addr + 1) : off);
 
 	relo++;
 }

util/ceg/ce_back/obj_back/reloc2.c

@@ -8,26 +8,36 @@
  * absolute.
  */
 
+#ifdef WORDS_REVERSED
+#ifdef BYTES_REVERSED
+#define RRR (RELO2|RELBR|RELWR)
+#else
+#define RRR (RELO2|RELWR)
+#endif
+#else
+#ifdef BYTES_REVERSED
+#define RRR (RELO2|RELBR)
+#else
+#define RRR (RELO2)
+#endif
+#endif
+
 reloc2( sym, off, pcrel)
 char *sym;
 arith off;
 int pcrel;
 {
+	register struct outrelo *r;
+
 	if ( relo - reloc_info >= size_reloc)
 		mem_relo();
 
-	relo->or_type = RELO2;
-#ifdef BYTES_REVERSED			
-	relo->or_type |= RELBR;
-#endif
-#ifdef WORDS_REVERSED
-	relo->or_type |= RELWR;
-#endif
-	relo->or_type |= ( pcrel) ? RELPC : S_UND;
-	relo->or_sect =  S_MIN + conv_seg( cur_seg);
-	relo->or_nami = find_sym(sym, REFERENCE);
-	relo->or_addr = cur_value();
-	gen2( (pcrel) ? off - ( cur_value() + 2) : off);
+	r = relo;
+	r->or_type = ( pcrel) ? RELPC|RRR : RRR;
+	r->or_sect =  S_MIN + conv_seg( cur_seg);
+	r->or_nami = find_sym(sym, REFERENCE);
+	r->or_addr = cur_value();
+	gen2( (pcrel) ? off - ( r->or_addr + 2) : off);
 
 	relo++;
 }

util/ceg/ce_back/obj_back/reloc4.c

@@ -9,29 +9,40 @@
  * absolute.
  */
 
+#ifdef WORDS_REVERSED
+#ifdef BYTES_REVERSED
+#define RRR (RELO4|RELBR|RELWR)
+#else
+#define RRR (RELO4|RELWR)
+#endif
+#else
+#ifdef BYTES_REVERSED
+#define RRR (RELO4|RELBR)
+#else
+#define RRR (RELO4)
+#endif
+#endif
+
 reloc4( sym, off, pcrel)
 char *sym;
 arith off;
 int pcrel;
 {
+	register struct outrelo *r;
+
 	if ( relo - reloc_info >= size_reloc)
  		mem_relo();
 
-	relo->or_type = RELO4;
-#ifdef BYTES_REVERSED			
-	relo->or_type |= RELBR;
-#endif
-#ifdef WORDS_REVERSED
-	relo->or_type |= RELWR;
-#endif
-	relo->or_type |= ( pcrel) ? RELPC : S_UND;
-	relo->or_sect =  S_MIN + conv_seg( cur_seg);
-	relo->or_nami = find_sym(sym, REFERENCE);
-	relo->or_addr = cur_value();
-	gen4( (pcrel) ? off - ( cur_value() + 4) : off);
+	r = relo;
+
+	r->or_type = ( pcrel) ? RELPC|RRR : RRR;
+	r->or_sect =  S_MIN + conv_seg( cur_seg);
+	r->or_nami = find_sym(sym, REFERENCE);
+	r->or_addr = cur_value();
+	gen4( (pcrel) ? off - ( r->or_addr + 4) : off);
 
 	/* print( "r %s r %ld s %d in %d adrr %ld off %ld\n",
-	         sym, pcrel, cur_seg, relo->or_nami, relo->or_addr, 
+	         sym, pcrel, cur_seg, r->or_nami, r->or_addr, 
 		(pcrel) ? off-cur_value() : off);
 	 */
 	 

util/ceg/ce_back/obj_back/relocation.c

@@ -1,6 +1,7 @@
 #include <system.h>
 #include <out.h>
 #include "back.h"
+#include "data.h"
 
 /* Solve the local references.
  */
@@ -8,9 +9,6 @@
 #define seg_index( s)	( nname - SEGBSS - 1 + s)
 
 long 		get4(); 
-extern short    get2();
-extern char 	get1();
-
 
 do_local_relocation()
 

util/ceg/ce_back/obj_back/rom2.c

@@ -6,10 +6,10 @@ TWO_BYTES w;
 {
 	if ((_data_cnt -= 2) < 0) mem_data();
 #ifdef BYTES_REVERSED
-	*data++ = ( unsigned short)w>>8;
+	*data++ = w>>8;
 	*data++ = w;
 #else
 	*data++ = w;
-	*data++ = ( unsigned short)w>>8;
+	*data++ = w>>8;
 #endif
 }

util/ceg/ce_back/obj_back/rom4.c

@@ -1,14 +1,22 @@
 #include "mach.h"
+#include "back.h"
+
+#ifdef BYTES_REVERSED
+#define rom2(w)		{ *data++ = ((w) >> 8); *data++ = (w);}
+#else
+#define rom2(w)		{ *data++ = (w); *data++ = ((w)>>8);}
+#endif
 
 rom4( l)
 FOUR_BYTES l;
 {
+	if ((_data_cnt -= 4) < 0) mem_data();
 #ifdef WORDS_REVERSED
-	rom2( (short) ((unsigned long)l>>16));
-	rom2( (short) l);
+	rom2( (int)(l>>16));
+	rom2( (int) l);
 #else
-	rom2( (short) l);
-	rom2( (short) ((unsigned long)l>>16));
+	rom2( (int) l);
+	rom2( (int) (l>>16));
 #endif
 }
 

util/ceg/ce_back/obj_back/switchseg.c

@@ -1,14 +1,12 @@
 #include "data.h"
 
-switchseg( seg)
+swtchsg( seg)
 int seg;
 
  /* The EM definition demands that pseudo instructions are aligned
   * at word boundaries.
   */
 {	
-	if ( seg == cur_seg)
-		return;
 	cur_seg = seg;
 	align_word();
 }

util/ceg/ce_back/obj_back/symtable.c

@@ -30,6 +30,9 @@ int		string_lengte = 0,
 		index_symbol_table = -1;
 
 struct Hashitem  *Hashitems ; 
+
+/*	MAXHASH must be a power of two ... */
+#define MAXHASH	512
 static int	 Hashtab[ MAXHASH];   
 static int Hash();
 
@@ -38,7 +41,6 @@ int find_sym( sym, isdef)
 char *sym;
 int isdef;
 {
-	register char *p;
 	register struct outname *s;
 	register struct Hashitem *ip;
 	register int h;
@@ -57,8 +59,11 @@ int isdef;
 	h = Hash(sym);
 	for ( ip = Hashtab[h] + Hashitems ; ip != Hashitems; 
 					  ip = (ip->hs_next) + Hashitems) {
+		register char *p = sym, *q;
+
 		s = symbol_table + ip->hs_nami;
-		if (strcmp(sym, (s->on_foff) + string_area) == 0) {
+		q = string_area + s->on_foff;
+		while (*p == *q++) if (*p++ == '\0') {
 		      	if ( (s->on_valu == -2) && (isdef == REFERENCE)) {
 			          s->on_type = S_EXT; 
 			          s->on_valu = -1;
@@ -89,6 +94,8 @@ int isdef;
 	if ( sym == string) 
 	        string += string_lengte;
 	else {    /* zie C_fil, C_lin, C_lni */
+		register char *p;
+
 		string_lengte = 0;
 		for( p=sym; *p != '\0' ; p++) {
 			string_lengte++;
@@ -111,15 +118,14 @@ int isdef;
 
 
 static int Hash(sym)
-register char *sym;
+	char *sym;
 {
 	register unsigned h;
-	register c;
+	register char *s = sym;
 
 	h = 0;
-	while (c = *sym++) {
-		h <<= 2;
-		h += c;
+	while (*s) {
+		h = (h << 2) + *s++;
 	}
-	return (h % MAXHASH);
+	return (h & (MAXHASH - 1));
 }

util/ceg/ce_back/obj_back/text2.c

@@ -6,10 +6,10 @@ TWO_BYTES w;
 {
 	if ((_text_cnt -= 2) < 0) mem_text();
 #ifdef BYTES_REVERSED
-	*text++ = ( unsigned short)w>>8;
+	*text++ = w>>8;
 	*text++ = w;
 #else
 	*text++ = w;
-	*text++ = ( unsigned short)w>>8;
+	*text++ = w>>8;
 #endif
 }

util/ceg/ce_back/obj_back/text4.c

@@ -1,13 +1,21 @@
 #include "mach.h"
+#include "back.h"
+
+#ifdef BYTES_REVERSED
+#define text2(w)	{ *text++ = ((w) >> 8); *text++ = (w);}
+#else
+#define text2(w)	{ *text++ = (w); *text++ = ((w)>>8);}
+#endif
 
 text4( l)
 FOUR_BYTES l;
 {
+	if ((_text_cnt -= 4) < 0) mem_text();
 #ifdef WORDS_REVERSED
-	text2( (short) ((unsigned long)l>>16));
-	text2( (short) l);
+	text2( (int) (l>>16));
+	text2( (int) l);
 #else
-	text2( (short) l);
-	text2( (short) ((unsigned long)l>>16));
+	text2( (int) l);
+	text2( (int) (l>>16));
 #endif
 }