Instructions missed implicit operands info

[lyrachord]

popa, popad pop 8 generals
pusha, pushad push 8 generals

Maybe need a new registers flag string?
seems "all" not an option, because call instruction and others maybe redefine the semantics of "all"
xx/yx/zx like series for cases?

And
vzeroall
vzeroupper
need a "all" kind of symbol to flag it.

[lyrachord]

There are many ins like the following in X64 which operand modifier is dx:zsi and like

    ["movsd"            , "X:<es:zdi>, X:<ds:zsi>"                      , "NONE"    , "A5"                               , "ANY REP REPNE    DF=R"],
    ["movsq"            , "X:<es:zdi>, X:<ds:zsi>"                      , "NONE"    , "REX.W A5"                         , "X64 REP REPNE    DF=R"],

I guess, since REX.W limits the instruction, so the register flag z- prefix is not necessary, it's fine that to just use r- prefix.
And ecds-segment ignored in bits64 mode, it should be ignored.

["movsq"            , "X:<rdi>, X:<rsi>"                      , "NONE"    , "REX.W A5"                         , "X64 REP REPNE    DF=R"],

?

[lyrachord]

["syscall"          , "w:<rcx>,w:<r11>"                                            , "NONE"    , "0F 05"                            , "X64              Volatile"],

[kobalicek]

Hey good ideas, however, I think asmdb needs the concept of "hidden" registers, that's how it's called in other tools - hidden is everything that is not mentioned in operands and is accessed by the instruction. The only question is how to add it to the database.

Maybe something like to the metadata?
HIDDEN=W:rcx,W:r11 or HIDDEN=W:zmm0..15[63:32]

Undecided, thinking about it, but yeah I think this is necessary for tooling.

[lyrachord]

one point, prefix?

[RWwXx-~:]operand
- for implicit, instead of <>
~ for commutative instead of ↔