kernel: remove a single use variable

Tidying up - and shorter cc65 code. Bizarrely sdcc also can't figure out that
this could just be a temporary so it also saves 12 bytes

diff --git a/Kernel/process.c b/Kernel/process.c
index 96f4bc8..fe26acb 100644 (file)
--- a/Kernel/process.c
+++ b/Kernel/process.c
@@ -586,21 +586,17 @@ rescan:
 /*
  *     Send signal, avoid touching uarea
  */
-/* SDCC bug #2472: SDCC generates hideous code for this function due to bad
-   code generation when masking longs. Not clear we can do much about it but
-   file a bug */
 
 void ssig(ptptr proc, uint8_t sig)
 {
        struct sigbits *m = proc->p_sig;
        uint16_t sigm;
-       uint8_t sigbit = sig & 0x0F;
        irqflags_t irq;
 
        if (sig > 15)
                m++;
 
-       sigm = 1 << sigbit;
+       sigm = 1 << (sig & 0x0F);
 
        irq = di();