Fixed & Improved Makefile, Made V86 GPF handler not directly dereference

a null pointer - due to optimization breaking.

print.c

@@ -1,20 +1,24 @@
 #include "print.h"
 
 __attribute((__always_inline__))
+__attribute((__no_caller_saved_registers__))
 char nibbleToHex(uint8_t n) {
     return n > 9 ? (n - 10) + 'A' : n + '0';
 }
 __attribute((__always_inline__))
+__attribute((__no_caller_saved_registers__))
 void printByte(uint8_t v, uint16_t *buff) {
     *(char *)&buff[0] = nibbleToHex((v >> 4) & 0xF);
     *(char *)&buff[1] = nibbleToHex(v & 0xF);
 }
 __attribute((__always_inline__))
+__attribute((__no_caller_saved_registers__))
 void printWord(uint16_t v, uint16_t *buff) {
     printByte(v >> 8, buff);
     printByte(v, &buff[2]);
 }
 __attribute((__always_inline__))
+__attribute((__no_caller_saved_registers__))
 void printDword(uint32_t v, uint16_t *buff) {
     printWord(v >> 16, buff);
     printWord(v, &buff[4]);