coco3: 2M bug: don't scan(aka overwrite) kernel memory.

diff --git a/Kernel/platform-coco3/main.c b/Kernel/platform-coco3/main.c
index 34d9557..c96f61d 100644 (file)
--- a/Kernel/platform-coco3/main.c
+++ b/Kernel/platform-coco3/main.c
@@ -40,15 +40,17 @@ int scanmem(void)
        volatile uint8_t *mmu=(uint8_t *)0xffa8;
        volatile uint8_t *ptr=(uint8_t *)0x0100;
        int i;
-       for( i = 0; i<256; i++ ){
+       for( i = 0; i<256; i+=8 ){
                *mmu=i;
                *ptr=0;
        }
        *mmu=0;
        *ptr=0xff;
-       *mmu=1;
-       for( i = 1; i<256 && !*ptr ; )
-               *mmu=++i;
+       *mmu=8;
+       for( i = 8; i<256 && !*ptr ; ){
+               i+=8;
+               *mmu=i;;
+       }
        *mmu=0;
        return i;
 }