From f3b9566ae2f2268be31dfb0f684ed977e05252bc Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Tue, 9 Dec 2025 19:38:59 +1100
Subject: [PATCH] FPU: Round to single precision for fcfid[u]s

The fcfids and fcfidus instructions weren't rounding to single
precision because r.longmask wasn't getting set.  To fix this, set
v.longmask to e_in.single for the fcfid* instructions.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
 fpu.vhdl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fpu.vhdl b/fpu.vhdl
index a005c81..5227406 100644
--- a/fpu.vhdl
+++ b/fpu.vhdl
@@ -1185,6 +1185,7 @@ begin
                             end if;
                         when "10110" =>        -- fcfid
                             v.result_sign := e_in.frb(63);
+                            v.longmask := e_in.single;
                         when others =>
                             v.result_sign := '0';
                     end case;