qemu-trivial
[Top][All Lists]
Advanced

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

[Qemu-trivial] [PATCH v2 4/5] replace muldiv64(a, b, c) by (uint64_t)a *


From: Laurent Vivier
Subject: [Qemu-trivial] [PATCH v2 4/5] replace muldiv64(a, b, c) by (uint64_t)a * b / c
Date: Mon, 9 May 2016 15:24:58 +0200

When "a" and "b" are 32bit values, we don't have to cast
them to 128bit, 64bit is enough.

This patch is the result of coccinelle script
scripts/coccinelle/simplify_muldiv64.cocci

Signed-off-by: Laurent Vivier <address@hidden>
---
 hw/audio/gus.c      | 2 +-
 hw/xtensa/pic_cpu.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/audio/gus.c b/hw/audio/gus.c
index 9dd6947..6c02646 100644
--- a/hw/audio/gus.c
+++ b/hw/audio/gus.c
@@ -144,7 +144,7 @@ static void GUS_callback (void *opaque, int free)
     s->left = samples;
 
  reset:
-    gus_irqgen (&s->emu, muldiv64 (net, 1000000, s->freq));
+    gus_irqgen (&s->emu, (uint64_t)net * 1000000 / s->freq);
 }
 
 int GUS_irqrequest (GUSEmuState *emu, int hwirq, int n)
diff --git a/hw/xtensa/pic_cpu.c b/hw/xtensa/pic_cpu.c
index c835bd0..343ea2c 100644
--- a/hw/xtensa/pic_cpu.c
+++ b/hw/xtensa/pic_cpu.c
@@ -121,8 +121,8 @@ void xtensa_rearm_ccompare_timer(CPUXtensaState *env)
     }
     env->wake_ccount = wake_ccount;
     timer_mod(env->ccompare_timer, env->halt_clock +
-            muldiv64(wake_ccount - env->sregs[CCOUNT],
-                1000000, env->config->clock_freq_khz));
+            (uint64_t)(wake_ccount - env->sregs[CCOUNT]) *
+            1000000 / env->config->clock_freq_khz);
 }
 
 static void xtensa_ccompare_cb(void *opaque)
-- 
2.5.5




reply via email to

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