sparc64: correct write extra bits to cwp

- correctly fit to cwp if provided window number is out of range

Signed-off-by: Igor V. Kovalenko <igor.v.kovalenko@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

diff --git a/target-sparc/cpu.h b/target-sparc/cpu.h
index 50859c7f1f3f6a2600eb3a05b95b886228dce6b0..842a2f44452a4da692a0044d0ba1b784c82c6848 100644 (file)
--- a/target-sparc/cpu.h
+++ b/target-sparc/cpu.h
@@ -519,7 +519,7 @@ static inline void PUT_PSR(CPUSPARCState *env1, target_ulong val)
 static inline void PUT_CWP64(CPUSPARCState *env1, int cwp)
 {
     if (unlikely(cwp >= env1->nwindows || cwp < 0))
-        cwp = 0;
+        cwp %= env1->nwindows;
     cpu_set_cwp(env1, env1->nwindows - 1 - cwp);
 }
 #endif