qemu-devel
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Qemu-devel] [PULL 02/30] target-mips: Make CP1.FIR read-only here too


From: Leon Alrae
Subject: [Qemu-devel] [PULL 02/30] target-mips: Make CP1.FIR read-only here too
Date: Tue, 16 Dec 2014 19:48:48 +0000

From: "Maciej W. Rozycki" <address@hidden>

CP1.FIR is read-only in hardware so gdbstub must respect it.  We already
respect it for CTC1 instructions, so do it here too.

Signed-off-by: Maciej W. Rozycki <address@hidden>
Reviewed-by: Leon Alrae <address@hidden>
Signed-off-by: Leon Alrae <address@hidden>
---
 target-mips/gdbstub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-mips/gdbstub.c b/target-mips/gdbstub.c
index 7e3a604..e86df0e 100644
--- a/target-mips/gdbstub.c
+++ b/target-mips/gdbstub.c
@@ -105,7 +105,7 @@ int mips_cpu_gdb_write_register(CPUState *cs, uint8_t 
*mem_buf, int n)
             RESTORE_ROUNDING_MODE;
             break;
         case 71:
-            env->active_fpu.fcr0 = tmp;
+            /* FIR is read-only.  Ignore writes.  */
             break;
         }
         return sizeof(target_ulong);
-- 
2.1.0




reply via email to

[Prev in Thread] Current Thread [Next in Thread]