From b1349038789c61b41321d6e4ea5d81bdee1eeb44 Mon Sep 17 00:00:00 2001
From: Guy Perfect <guytpk@gmail.com>
Date: Wed, 30 Oct 2024 15:12:38 -0500
Subject: [PATCH] Fix first line of disassembly

---
 util/disassembler.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/util/disassembler.c b/util/disassembler.c
index 3970211..80f1743 100644
--- a/util/disassembler.c
+++ b/util/disassembler.c
@@ -637,8 +637,8 @@ static VBU_DasmLine* dasmDisassemble(VB *sim, uint32_t address,
     }
 
     /* Begin decoding from at least 10 lines before first/reference */
-    addr = (address & 0xFFFFFFFE) +
-        (int32_t) ((line < 0 ? -line : 0) - 10) * 4;
+    addr = (address & 0xFFFFFFFE) -
+        (int32_t) (line <= 0 ? 10 : line + 10) * 4;
 
     /* Locate the address of the line containing the reference address */
     pc = vbGetProgramCounter(sim);