Initial commit

include/system.h

@@ -0,0 +1,30 @@
+#ifndef __SYSTEM_H
+#define __SYSTEM_H
+
+/* MAIN.C */
+extern unsigned char *memcpy(unsigned char *dest, const unsigned char *src, int count);
+extern unsigned char *memset(unsigned char *dest, unsigned char val, int count);
+extern unsigned short *memsetw(unsigned short *dest, unsigned short val, int count);
+extern int strlen(const char *str);
+extern unsigned char inportb (unsigned short _port);
+extern void outportb (unsigned short _port, unsigned char _data);
+/* ISRS.C */
+void isrs_install();
+/* This defines what the stack looks like after an ISR was running */
+struct regs
+{
+    unsigned int gs, fs, es, ds;      /* pushed the segs last */
+    unsigned int edi, esi, ebp, esp, ebx, edx, ecx, eax;  /* pushed by 'pusha' */
+    unsigned int int_no, err_code;    /* our 'push byte #' and ecodes do this */
+    unsigned int eip, cs, eflags, useresp, ss;   /* pushed by the processor automatically */ 
+};
+/* IRQ.C */
+void irq_install_handler(int irq, void (*handler)(struct regs *r));
+void irq_uninstall_handler(int irq);
+void irq_install();
+/* TIMER.C */
+void timer_handler(struct regs *r);
+void timer_install();
+/* KB.C */
+void kb_install();
+#endif