X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?p=rmac;a=blobdiff_plain;f=procln.c;h=2cd1bdc3d513b6b7476d33cea3c59b0e09f8b357;hp=44b94d698332703eca6e06b0f5a784b7e086f9b5;hb=be5c1cb1a3ca24f29789437675fa8cd22e1edd45;hpb=a48737de123e304866212f5382d6fa4174d496a0

diff --git a/procln.c b/procln.c
index 44b94d6..2cd1bdc 100644
--- a/procln.c
+++ b/procln.c
@@ -3,7 +3,7 @@
 // PROCLN.C - Line Processing
 // Copyright (C) 199x Landon Dyer, 2011 Reboot and Friends
 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
-// Source Utilised with the Kind Permission of Landon Dyer
+// Source utilised with the kind permission of Landon Dyer
 //
 
 #include "procln.h"
@@ -36,7 +36,6 @@ static IFENT * f_ifent;			// Freelist of ifents
 static int disabled;			// Assembly conditionally disabled
 int just_bss;					// 1, ds.b in microprocessor mode 
 VALUE pcloc;					// Value of "PC" at beginning of line 
-IFENT * ifent;					// Current ifent
 SYM * lab_sym;					// Label on line (or NULL)
 
 const char extra_stuff[] = "extra (unexpected) text found after addressing mode";
@@ -137,7 +136,7 @@ loop:							// Line processing loop label
 	// Get another line of tokens
 	if (TokenizeLine() == TKEOF)
 	{
-if (verb_flag) printf("Assemble: Found TKEOF flag...\n");
+if (debug) printf("Assemble: Found TKEOF flag...\n");
 		if (list_flag && listflag)			// Flush last line of source
 			listeol();
 
@@ -265,13 +264,13 @@ as68label:
 		switch (state)
 		{
 		case MN_IF:
-			d_if ();
+			d_if();
 		goto loop;
 		case MN_ELSE:
 			d_else();
 			goto loop;
 		case MN_ENDIF:
-			d_endif ();
+			d_endif();
 			goto loop;
 		case MN_IIF:						// .iif --- immediate if
 			if (disabled || expr(exprbuf, &eval, &eattr, &esym) != OK)
@@ -395,13 +394,13 @@ normal:
 		// o  everything else
 		if (equtyp == EQUREG)
 		{
-//Linko's request to issue a warning on labels that equated to the same register
-//would go here. Not sure how to implement it though. :-/
+//Linko's request to issue a warning on labels that equated to the same
+//register would go here. Not sure how to implement it though. :-/
 /*
 Maybe like this way:
 have an array of bools with 64 entries. Whenever a register is equated, set the
-corresponding register bool to true. Whenever it's undef'ed, set it to false. When
-checking to see if it's already been equated, issue a warning.
+corresponding register bool to true. Whenever it's undef'ed, set it to false.
+When checking to see if it's already been equated, issue a warning.
 */
 			// Check that we are in a RISC section
 			if (!rgpu && !rdsp)
@@ -629,10 +628,10 @@ checking to see if it's already been equated, issue a warning.
 		goto loop;
 	}
 
-	if (sloc & 1)							// Automatic .even
+	if (sloc & 1)					// Automatic .even
 		auto_even();
 
-	if (challoc - ch_size < 18)				// Make sure have space in current chunk
+	if (challoc - ch_size < 18)		// Make sure have space in current chunk
 		chcheck(0);
 
 	m = &machtab[state - 1000];
@@ -644,7 +643,7 @@ checking to see if it's already been equated, issue a warning.
 		goto loop;
 	}
 
-	if (amode(1) < 0)						// Parse 0, 1 or 2 addr modes
+	if (amode(1) < 0)				// Parse 0, 1 or 2 addr modes
 		goto loop;
 
 	if (*tok != EOL)
@@ -661,6 +660,9 @@ checking to see if it's already been equated, issue a warning.
 		goto loop;
 	}
 
+	// Keep a backup of chptr (used for optimisations during codegen)
+	chptr_opcode = chptr;
+
 	for(;;)
 	{
 		if ((m->mnattr & siz) && (amsk0 & m->mn0) != 0 && (amsk1 & m->mn1) != 0)