From 15c7742381d7c63d8fb9d664eab56f3fed96f824 Mon Sep 17 00:00:00 2001 From: vetch Date: Tue, 17 Dec 2019 16:28:35 +0100 Subject: small update, try to fix interrupt --- kernel.c | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) (limited to 'kernel.c') diff --git a/kernel.c b/kernel.c index 1a54fcf..b274fe2 100644 --- a/kernel.c +++ b/kernel.c @@ -19,26 +19,40 @@ void kernel_main(uint32_t r0, uint32_t r1, uint32_t atags) uart_puts("Hello, kernel World!\r\n"); - enable_interrupt(); // prints some info demo_paging_support(); + + // prints some info and switches to system mode demo_mode_to_system(); // prints some info and sets upp translation table, turns on MMU setup_flat_map(); - demo_setup_libkernel(); +// demo_setup_libkernel(); - demo_setup_PL0(); +// demo_setup_PL0(); + enable_timer(); + // enable interrupts demo_setup_interrupts(); - - // prints some info and sets up a section for PL0 code, loads a blob + + *(int *)(0x3000B210) = 1; + *(int *)(0x3000B204) = 1; + + + asm("LDR r0, =0x3F00B200\n\r" + "MOV r1, #2\n\r" + "STR r1, [r0, #0x04]\n\r"); + + *(int *)(0xE000ED0C) = 1; + + + // prints some info and sets up a section for PL0 code, loads a blob // there and jumps to it... never, ever, ever returns demo_go_unprivileged(); - + while(1); while (1) -- cgit v1.2.3