From 659f1f1ae057c82a154a1fd32cc9dca040979daa Mon Sep 17 00:00:00 2001 From: Michal Idziorek Date: Fri, 29 Aug 2014 15:20:17 +0200 Subject: experimenting with a20 gate --- kernel/kernel.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'kernel') diff --git a/kernel/kernel.c b/kernel/kernel.c index 3296b37..7d9b848 100644 --- a/kernel/kernel.c +++ b/kernel/kernel.c @@ -102,12 +102,18 @@ void kernel_main() //init shell shell_init(); + /* -/* log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"test mem"); - uint8_t *memtest=0x1fffffff; + + // test a20 disabled / wrap + uint8_t *memtest=0x0; + uint8_t *memtest2=0b10000000000000000000; + *memtest=0xaf; - log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"test mem %x",*memtest); + log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"test mem %x",*(memtest2-1)); + log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"test mem %x",*memtest2); + log(FOOLOS_MODULE_NAME,FOOLOS_LOG_INFO,"test mem %x",*(memtest2+1)); */ -- cgit v1.2.3