arch: i386: cleanup everything and reorganize

Clean up everything in the i386 arch directory. This code has been in
dire need of refactoring for a long while. All the inline assembly
functions and the data structures related to the architecture should be
placed into their own header file. Now the scheduler can access
registers and ISRs without having to deal with arch-specific code.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 20 insertions, 2 deletions

diff --git a/kernel/panic.c b/kernel/panic.c
index be7cffb..b92ee4d 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -1,11 +1,29 @@
 #include <kernel/panic.h>
 #include <kernel/io.h>
+#include <stdint.h>
+#include <stddef.h>
 
 static int panicked = 0;
 
 void panic(const char *str) {
-        kprintf("KERNEL PANIC\n");
-        kprintf("ERROR: %s\n", str);
+        kprintf("KERNEL PANIC: %s\n", str);
         panicked = 1;
         while (1);
 }
+
+void dump_reg(struct regs *regs) {
+        kprintf("Registers at interrupt:\n");
+        kprintf("\tEAX = %x\n", regs->eax);
+        kprintf("\tEBX = %x\n", regs->ebx);
+        kprintf("\tECX = %x\n", regs->ecx);
+        kprintf("\tEDX = %x\n", regs->edx);
+        kprintf("\tESI = %x\n", regs->esi);
+        kprintf("\tEDI = %x\n", regs->edi);
+        kprintf("\tEIP = %x\n", regs->eip);
+        kprintf("Current code selector: %x\n", regs->cs);
+}
+
+void dump_stack(struct regs *regs, size_t len) {
+        //for (uint32_t i = 0; i < len; i++)
+        //        kprintf("%x:\t%x\n", esp+i, *(uint32_t*)(esp+i));
+}