diff --git a/hw/milkymist-pfpu.c b/hw/milkymist-pfpu.c
index 4831e00b81..94e631510f 100644
--- a/hw/milkymist-pfpu.c
+++ b/hw/milkymist-pfpu.c
@@ -163,7 +163,7 @@ static int pfpu_decode_insn(MilkymistPFPUState *s)
     uint32_t reg_b = (insn >> 11) & 0x7f;
     uint32_t op = (insn >> 7) & 0xf;
     uint32_t reg_d = insn & 0x7f;
-    uint32_t r;
+    uint32_t r = 0;
     int latency = 0;
 
     switch (op) {
diff --git a/roms/seabios b/roms/seabios
index cc975646af..06d0bdd9e2 160000
--- a/roms/seabios
+++ b/roms/seabios
@@ -1 +1 @@
-Subproject commit cc975646af69f279396d4d5e1379ac6af80ee637
+Subproject commit 06d0bdd9e2e20377b3180e4986b14c8549b393e4