[PATCH v2 3/3] target/nios2: Use deposit32() to update ipending register

[Peter Maydell]

In nios2_cpu_set_irq(), use deposit32() rather than raw shift-and-mask
operations to set the appropriate bit in the ipending register.

Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
In patch 1 I left the code for this identical to the old
code from nios2_iic.c for clarity of that refactoring,
but deposit32() is a clearer way to write it.
---
 target/nios2/cpu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/nios2/cpu.c b/target/nios2/cpu.c
index 52ebda89ca7..58688e1623a 100644
--- a/target/nios2/cpu.c
+++ b/target/nios2/cpu.c
@@ -71,8 +71,7 @@ static void nios2_cpu_set_irq(void *opaque, int irq, int 
level)
     CPUNios2State *env = &cpu->env;
     CPUState *cs = CPU(cpu);
 
-    env->regs[CR_IPENDING] &= ~(1 << irq);
-    env->regs[CR_IPENDING] |= !!level << irq;
+    env->regs[CR_IPENDING] = deposit32(env->regs[CR_IPENDING], irq, 1, 
!!level);
 
     env->irq_pending = env->regs[CR_IPENDING] & env->regs[CR_IENABLE];
 
-- 
2.20.1