From 707c12bf00dafdfd3899b1a6c36435dbbf6c7022 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Fri, 9 Jan 2026 18:46:32 +0100
Subject: DUALNUM: Improve/fix edge cases of unary minus.

Thanks to Sergey Kaplun. #1422 #1418
---
 src/vm_arm.dasc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/vm_arm.dasc')

diff --git a/src/vm_arm.dasc b/src/vm_arm.dasc
index d99cdaca..d67dbffc 100644
--- a/src/vm_arm.dasc
+++ b/src/vm_arm.dasc
@@ -3125,13 +3125,16 @@ static void build_ins(BuildCtx *ctx, BCOp op, int defop)
     |  bhi ->vmeta_unm
     |  eorne CARG2, CARG2, #0x80000000
     |  bne >5
-    |  rsbseq CARG1, CARG1, #0
+    |  rsbs CARG1, CARG1, #0
+    |  ldrdeq CARG12, >8
     |  ldrdvs CARG12, >9
     |5:
     |  strd CARG12, [BASE, RA]
     |   ins_next3
     |
     |.align 8
+    |8:
+    |  .long 0x00000000, 0x80000000	// -0.
     |9:
     |  .long 0x00000000, 0x41e00000	// 2^31.
     break;
-- 
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