On 18/10/2018 15:44, Roman Bolshakov wrote:
> According to Intel(R)64 and IA-32 Architectures Software Developer's
> Manual, the following one-byte registers should be fetched when REX
> prefix is present (sorted by reg encoding index):
> AL, CL, DL, BL, SPL, BPL, SIL, DIL, R8L - R15L
>
> The firs
According to Intel(R)64 and IA-32 Architectures Software Developer's
Manual, the following one-byte registers should be fetched when REX
prefix is present (sorted by reg encoding index):
AL, CL, DL, BL, SPL, BPL, SIL, DIL, R8L - R15L
The first 8 are fetched if REX.R is zero, the last 8 if non-zero
