Shorter and simpler version which does not need to use the stack.

diff --git a/lib/libc/arch/m88k/gen/fabs.S b/lib/libc/arch/m88k/gen/fabs.S
index 3e0742d..f47d31b 100644 (file)
--- a/lib/libc/arch/m88k/gen/fabs.S
+++ b/lib/libc/arch/m88k/gen/fabs.S
@@ -1,4 +1,4 @@
-/* $OpenBSD: fabs.S,v 1.12 2024/03/02 12:02:42 miod Exp $ */
+/* $OpenBSD: fabs.S,v 1.13 2024/03/02 16:51:00 miod Exp $ */
 /*-
  * Copyright (c) 1996 Nivas Madhur
  * All rights reserved.
@@ -37,12 +37,6 @@
 
 STRONG_ALIAS(fabsl, fabs)
 ENTRY(fabs)
-       subu    %r31,%r31,16
-       st.d    %r2,%r31,0
-       ld.bu   %r4,%r31,0
-       mask    %r4,%r4,0x7f    /* set sign bit to 0 */
-       st.b    %r4,%r31,0
-       ld.d    %r2,%r31,0
        jmp.n   %r1
-        addu   %r31,%r31,16
+        and.u  %r2, %r2, 0x7fff        /* set sign bit to 0 */
 END(fabs)