From: Michael Meissner <gnu@the-meissners.org>
Date: Thu, 8 May 1997 19:58:20 +0000 (+0000)
Subject: reverse bit number for bbo/bbz instructions.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1e0e7911a5eb37ae2e5eecf14b393180ab0137aa;p=binutils-gdb.git

reverse bit number for bbo/bbz instructions.
---

diff --git a/sim/tic80/ChangeLog b/sim/tic80/ChangeLog
index 4a458e428fb..33d6b1b3ba2 100644
--- a/sim/tic80/ChangeLog
+++ b/sim/tic80/ChangeLog
@@ -3,6 +3,7 @@ Thu May  8 11:57:47 1997  Michael Meissner  <meissner@cygnus.com>
 	* insns (jsr,bsr): For non-allulled calls, set r31 so that the
 	return address does not reexecute the instruction in the delay
 	slot.
+	(bbo,bbz): Reverse bit number.
 
 	* misc.c (tic80_trace_*): Change format slightly to accomidate
 	real large decimal values.
diff --git a/sim/tic80/insns b/sim/tic80/insns
index 7c16213a775..65278338f20 100644
--- a/sim/tic80/insns
+++ b/sim/tic80/insns
@@ -107,7 +107,7 @@ void::function::do_and:signed32 *rDest, signed32 Source1, signed32 Source2
 instruction_address::function::do_bbo:instruction_address nia, int bitnum, unsigned32 source, int annul, unsigned32 offset
 	int jump_p;
 	unsigned32 target = cia.ip + 4 * offset;
-	if (MASKED32 (source, bitnum, bitnum))
+	if (MASKED32 (source, 32 - bitnum, 32 - bitnum))
 	  {
 	    if (annul)
 	      nia.ip = -1;
@@ -131,7 +131,7 @@ instruction_address::function::do_bbo:instruction_address nia, int bitnum, unsig
 instruction_address::function::do_bbz:instruction_address nia, int bitnum, unsigned32 source, int annul, unsigned32 offset
 	int jump_p;
 	unsigned32 target = cia.ip + 4 * offset;
-	if (!MASKED32 (source, bitnum, bitnum))
+	if (!MASKED32 (source, 32 - bitnum, 32 - bitnum))
 	  {
 	    if (annul)
 	      nia.ip = -1;