Fix handling of code writes for Z80 core. This seems to get things close to being back to where they were before the big refactor that broke the Z80 core. Some problems remain. Notably the sound driver in Sonic 2 is still quite broken.

#ifndef GDB_REMOTE_H_
#define GDB_REMOTE_H_
#include "blastem.h"

void gdb_remote_init(void);
m68k_context * gdb_debug_enter(m68k_context * context, uint32_t pc);

#endif //GDB_REMOTE_H_