X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fruntime%2Falpha-linux-os.c;h=9f1e586e05132700342b3d9e9b26d5f0a27af659;hb=d4b738d6c0b354de817fa490b50814e40872b3d0;hp=5e25e80de081003e84366a273b9cbdee2be03247;hpb=adcd870f5442b48e0572f1de51fe53edfa2ba26b;p=sbcl.git

diff --git a/src/runtime/alpha-linux-os.c b/src/runtime/alpha-linux-os.c
index 5e25e80..9f1e586 100644
--- a/src/runtime/alpha-linux-os.c
+++ b/src/runtime/alpha-linux-os.c
@@ -88,9 +88,17 @@ void
 os_restore_fp_control(os_context_t *context)
 {
     /* FIXME: 0x7E0000 is defined as something useful in constants.h,
-       but without the L, which would probably lead to 32/64-bit
+       but without the UL, which would probably lead to 32/64-bit
        errors if we simply used it here.  Ugh.  CSR, 2003-09-15 */
-    arch_set_fp_control(os_context_fp_control(context) & ~(0x7e0000L));
+    arch_set_fp_control(os_context_fp_control(context) & ~(0x7e0000UL) &
+			/* KLUDGE: for some reason that I don't
+			understand, by the time we get here the
+			"enable denormalized traps" bit in the fp
+			control word is set.  Since we really don't
+			want to tra every time someone types
+			LEAST-POSITIVE-SINGLE-FLOAT into the repl,
+			mask that bit out.  -- CSR, 2003-09-15 */
+			~(0x1UL<<6));
 }
 
 void os_flush_icache(os_vm_address_t address, os_vm_size_t length)