# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1499403095 25200
# Node ID 4f96103b4b4762eeb4418ac517e1cf351b9cdb5d
# Parent  9a3e003bdcb36086c080448c101814285ee9df13
Fix s(tep) debug command for the case of dbra with an expired counter reg

diff -r 9a3e003bdcb3 -r 4f96103b4b47 debug.c
--- a/debug.c	Fri Jun 30 18:42:52 2017 -0700
+++ b/debug.c	Thu Jul 06 21:51:35 2017 -0700
@@ -796,10 +796,16 @@
 					branch_f = after;
 					branch_t = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
 					insert_breakpoint(context, branch_t, debugger);
-				} else if(inst.op == M68K_DBCC && inst.extra.cond != COND_FALSE) {
-					branch_t = after;
-					branch_f = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
-					insert_breakpoint(context, branch_f, debugger);
+				} else if(inst.op == M68K_DBCC) {
+					if (inst.extra.cond == COND_FALSE) {
+						if (context->dregs[inst.dst.params.regs.pri] & 0xFFFF) {
+							after = m68k_branch_target(&inst, context->dregs, context->aregs);
+						}
+					} else {
+						branch_t = after;
+						branch_f = m68k_branch_target(&inst, context->dregs, context->aregs);
+						insert_breakpoint(context, branch_f, debugger);
+					}
 				} else {
 					after = m68k_branch_target(&inst, context->dregs, context->aregs) & 0xFFFFFF;
 				}