X-Git-Url: http://shamusworld.gotdns.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=sect.c;h=e0e47c6446aad4c4045fd64c9fa9f9523d2507ea;hb=cbc8347d4ffea164ca05b03e4e3be39945be8777;hp=0ea53a843f1c4568dec445fcab7c7f3a179ed014;hpb=8f287ee72236774216a11a3062f9a26dc8dc66b6;p=rmac

diff --git a/sect.c b/sect.c
index 0ea53a8..e0e47c6 100644
--- a/sect.c
+++ b/sect.c
@@ -1,7 +1,7 @@
 //
-// RMAC - Reboot's Macro Assembler for all Atari computers
+// RMAC - Renamed Macro Assembler for all Atari computers
 // SECT.C - Code Generation, Fixups and Section Management
-// Copyright (C) 199x Landon Dyer, 2011-2020 Reboot and Friends
+// Copyright (C) 199x Landon Dyer, 2011-2021 Reboot and Friends
 // RMAC derived from MADMAC v1.07 Written by Landon Dyer, 1986
 // Source utilised with the kind permission of Landon Dyer
 //
@@ -415,6 +415,12 @@ int ResolveFixups(int sno)
 			// evexpr presumably issues the errors/warnings here
 			if (evexpr(fup->expr, &eval, &eattr, &esym) != OK)
 				continue;
+
+			if ((CHECK_OPTS(OPT_PC_RELATIVE)) && (eattr & REFERENCED) && (eattr & DEFINED) && (!(eattr & EQUATED)))
+			{
+				error("relocation not allowed");
+				continue;
+			}
 		}
 		// Simple symbol
 		else
@@ -422,6 +428,12 @@ int ResolveFixups(int sno)
 			SYM * sy = fup->symbol;
 			eattr = sy->sattr;
 
+			if ((CHECK_OPTS(OPT_PC_RELATIVE)) && (eattr & REFERENCED) && (eattr & DEFINED) && (!(eattr & EQUATED)))
+			{
+				error("relocation not allowed");
+				continue;
+			}
+
 			if (eattr & DEFINED)
 				eval = sy->svalue;
 			else
@@ -498,7 +510,7 @@ int ResolveFixups(int sno)
 					}
 				}
 
-				if (sbra_flag && (dw & FU_LBRA) && (eval + 0x80 < 0x100))
+				if (optim_warn_flag && (dw & FU_LBRA) && (eval + 0x80 < 0x100))
 					warn("unoptimized short branch");
 			}
 
@@ -525,11 +537,15 @@ int ResolveFixups(int sno)
 
 			if (eval == 0)
 			{
-				if (CHECK_OPTS(OPT_NULL_BRA))
+				if (*locp) // optim_flags[OPT_NULL_BRA] is stored there, check the comment in mach.s under m_br
 				{
 					// Just output a NOP
 					*locp++ = 0x4E;
 					*locp = 0x71;
+
+					if (optim_warn_flag)
+						warn("bra.s with zero offset converted to NOP");
+
 					continue;
 				}
 				else
@@ -884,8 +900,8 @@ int ResolveFixups(int sno)
 				locp[1] = (uint8_t)eval;
 				break;
 
-			// This is a 6 bit absoulte short address. It occupies
-			// the low 6 bits of the middle byte of a DSP word.
+			// This is a 6 bit absoulte short address. It occupies the low 6
+			// bits of the middle byte of a DSP word.
 			case FU_DSPADR06:
 				if (eval > 63)
 				{
@@ -896,8 +912,8 @@ int ResolveFixups(int sno)
 				locp[1] |= eval;
 				break;
 
-			// This is a 6 bit absoulte short address. It occupies
-			// the low 6 bits of the middle byte of a DSP word.
+			// This is a 6 bit absoulte short address. It occupies the low 6
+			// bits of the middle byte of a DSP word.
 			case FU_DSPPP06:
 				if (eval < 0xFFFFFFC0)
 				{