TODO (know issues in CPU model):
-------------------------------

[!] The following 3DNow! instructions still not implemented:
	PF2IW_PqQq
	PFNACC_PqQq
	PFPNACC_PqQq
	PFCMPGE_PqQq
	PFCMPGT_PqQq
	PFCMPEQ_PqQq
	PFMIN_PqQq
	PFMAX_PqQq
	PFRCP_PqQq
	PFRSQRT_PqQq
	PFSUB_PqQq
	PFSUBR_PqQq
	PFADD_PqQq
	PFACC_PqQq,
	PFMUL_PqQq
	PFRCPIT1_PqQq
	PFRSQIT1_PqQq
	PFRCPIT2_PqQq

[!] CPUID does not report 3DNow! instruction set

[!] Some of APIC functionality (like spurious interrupt vector) still
    not implemented

[!] VME (v8086 mode extension) still not implemented. 
    The implementation requires validation of VIF/VIP flags handling in 
    all the CPU methods.

[!] No support for Big Real Mode segmentation

[!] No support of AC flag (aligment checking) and #AC exception